Download - Vol. 12-High & Low Voltage Switch
-
7/30/2019 Vol. 12-High & Low Voltage Switch
1/49
-
7/30/2019 Vol. 12-High & Low Voltage Switch
2/49
contents
02 ovrviw
03 Prdu cagry
03 LW41-126/T4000-40 High Voltage SF6 Circuit Breaker12 High Voltage Disconnector
14 GW4-27.5DW Single Grounding Once-through Operation Disconnector
15 GW4-110DW Three-phase Coupled Remodeling Disconnector
16 GW5-110D (W)/630/ 1250 Outdoor Triple Pole Mounted Disconnector
17 Medium Voltage Switch
23 VBP Indoor Solid-sealed Pole Vacuum Circuit Breaker
32 VK Vacuum Circuit Breaker (Designated Sales Region)
44 VY Vacuum Circuit Breaker (Designated Sales Region)
53 ZN85-40.5 Indoor AC High Voltage Vacuum Circuit Breaker
60 VS1-BYE Indoor High Voltage Vacuum Circuit Breaker
66 VW Single-phase Vacuum Circuit Breaker (Designated Sales Region)
67 UVA Vacuum Contactor - Fuse Combination
70 BYEW1 Series Air Circuit Breaker
71 BYEM1 Series Molded Case Circuit Breaker
75 BYEM1LE Series MCCB with Residual Current Protection
79 BYEM2Z Molded Case Circuit Breaker
81 BYEM6, BYEM6LE Series Miniature Circuit Breaker
83 BYQ2 Series Dual Power Supply Automatic Transfer Switch
86 BYES9 Series Dual Power Supply Automatic Transfer Switch
88 Vacuum interrupter
-
7/30/2019 Vol. 12-High & Low Voltage Switch
3/49
03
Prdutcategry
2 High & Lw Vlag swih
Overview
Engage in the manufacturing, distribution, design and
installation of various high, medium and low voltage switch
assemblies of complete specifications and varieties.
Products include vacuum circuit breaker and contactor, vacuum
interrupter, SF6 MV gas insulated switchgear, high voltagedisconnector, various low voltage circuit breakers and switches.
Toshiba Baiyun Vacuum Interrupters (Jinzhou) Co., Ltd. is a joint
venture engaged in the manufacturing of vacuum interrupters
established jointly by Japan Toshiba K.K., Guangzhou Baiyun
Electric Group Co., Ltd. and Toshiba (China) Co., Ltd. with its
controlling shares held by Toshiba Group. It's the manufacturing
base of vacuum switch tubes. It sticks to the strategy of dual
brands, namely, Toshiba vacuum interrupter and Liaoju vacuum
interrupter. Its Liaoju vacuum interrupter is one of the top
four famous brands in China.
Nanjing Electric (Group) Co., Ltd. (the former name: Nanjing
Electro-Ceramic Factory) was established in 1936. Through
merger and acquisition, now it's the wholly owned subsidiary
of Baiyun Electric Group; it's the manufacturing base of high
voltage disconnectors; and its Thunderbrand registered in
1937 is famous at home and abroad.
Descriptive trademark is Guangzhou Famous Brand and
Guangdong Province Famous Brand. High, medium and low
voltage switchgear assembly is Guangdong Famous Brand.
Besides its proprietary brands, it also manufactures many
products with joint venture brands.
It successively established three j oint ventures with Toshiba
and Mitsubishi, and cooperated with Germany Si emens, France
Schneider and Switzerland ABB for more than 20 technologies,
and introduced the world advanced critical technologies
including 8PT, VK and OKKEN products.
For a number of years, the company has invested for more
than 100 million yuan. It respectively introduced more than 50
(sets) world advanced NC presses, NC shearers, NC benders,
mechanical machining centers, bus bar machining centers,
multi-purpose welding equipment and automatic spraying
production lines etc. from Japan, Switzerland, U.S., Britain, Italy,
Germany etc., and formed multi-functional metal plate and
mechanical processing and production lines; its production
technology and production capacity can represent the highest
achievement in the fellow sector at home; its annual production
capacity of high and medium voltage switchgear assemblies is
6000.
Its products are mainly used by the key customers in eight
industries including power grid, rail transportation, power
plant, petroleum and petrochemical and its market share
in the construction of Southern Power Grid is 50%. So far,
the company has participated in 15 provincial level power
grid construction projects, the construction of more than 80
power plants, as well as Beijing Metro and Guangzhou Metro,
becoming one of the 13 qualified suppliers of PetroChina and
Sinopec.
It introduces and sets up various management methods and
systems, including ISO9001, ISO14001, OHSAS18001, 6S, ERP,
CRM, PLM, JIT, MBO, CEMS etc., which provide high-quality
guarantee for its products.
The company has Corporate Technical Center approved by
Guangdong Province and state approved corporate technical
center high and low voltage switchgear assemblies research
sub-center, sets up eight multi-functional research labs in the
area of switchgear assemblies, has top high and low voltage
electrical products development and test techniques, and
possesses more than 80 test and detection equipment with the
highest level of the industry, and its metering center has been
approved as State Intermediate Metering enterprise.
Product Category
ovrviw
LW41-126/T4000-40 SF6 Circuit Breaker is outdoor live tank
circuit breaker, 3 phase, 50Hz, used in 126kV power system for
cutting off load current, fault current and switching circuit. It is
capable of 3 phase O/C and auto-reclosing, used to operate,
control ans protect power system.
This type of SF6 circuit breaker is self-developed product by our
company, using SF6 as insulation and arc extinction medium.
It adopts the latest self-energy arc extinguishing technology in
the word, with the technical performance reaching international
advanced level and leading position in China.
It is featured with reasonable design, compact structure and low
operating power. Spring mechanism is superior to hydraulic one
for no leakage of oil and nitrogen. This kind of SF6 circuit breaker
is the replacement product of SF6 puffer circuit breaker, having
the advantage of low noise, reliable operation, fast installation
and easy maintenance.
Wrkig dii
n. Im Ui Daa
1 Ambient temperature0C -30 ~ 50
2 Wind pressure Pa 700
3 Altitude m 1000
4 Seismic intensity Degree 9
5 Pollution degree of external insulation Class II, III, IV
6 Static tensile force of horizontal longitudinal terminal N 1250
7 Static tensile force of transverse horizontal terminal N 750
8 Static tensile force of vertical terminal N 1000
LW41-126/T4000-40 High Voltage SF6 Circuit Breaker
-
7/30/2019 Vol. 12-High & Low Voltage Switch
4/49
4 05
Prdutcategry
High & Lw Vlag swih
thial daa irui brakr
Mhaial prpry
sF6 maagm
sruurCircuit breaker is composed of three poles, cross-beam, column
and spring operating mechanism (outline and dimension
shown in drawing 1). Three poles are on top of the cross-
beam, and the spring operating mechanism is right below
the cross-beam. The three poles are mechanical connection,
with each pole filled with SF6 as insulation and arc-extinction
medium, connected by pipeline to form a gas circuit system,
and monitored by pressure pointer type density relay. Electrical
control system is placed in the spring mechanism box.
Ar-quhig priipl
During the opening operation, when the static main contact
(3) and moving contact (4) separates, the current will transfer
to static arcing contact (10) and moving arc contact (11) for
continued flow, and the moving contact will keep up the
opening operation.
When breaking high current: during breaking operation,
SF6 turns into high temperature and pressure gas by the arc
generated by the separation action of moving arcing contact
and static arcing contact (10). Before spout (9) laryngeal departs
with static arcing contact, the gas flows into thermal expansion
n. Im Ui Daa
1 Rated voltage kV 126
2 Rated frequency Hz 50
3 Insulation
Rated short time power frequencywithstand voltage (wet, dry)
Phase to phase, phase to earthkV
230
Across the isolating distance 265
Rated lightning impulse withstandvoltage (positive, negative)
Phase to phase, phase to earthkV
550
Across the isolating distance 630
4 Rated current A 4000
5 Rated short-circuit breaking current kA 40
6 First-pole-to-clear factor 1.5
7 Rated short time withstand current kA 40
8 Rated duration of short-circuit s 4
9 Rated peak withstand current kA 100
10 Rated short-circuit making current kA 100
11 Rated operating sequence 0-0.3s-CO-180s-CO
12 Short-line fault breaking current kA 36; 30
13 Rated out-of-phase breaking current kA 10
14 Rated line-charging breaking current A 31.5
15 Electrical interruptive life of rated short-circuit current time(s) 16
16 Mechanical life time(s) 3000
17 Annual leakage ratio (SF6) % 1
18 Water content in SF6 ppm 150
n. Im Ui thial daa
1 Opening time ms 322
2 Closing time ms 605
3 Open-close time ms 300
4 Close-open time ms 805
5 Opening simultaneity ms 2
6 Closing simultaneity ms 3
7 Switch off time ms 60
sprig mhaim
n. Im Ui thial daa
1 Tripping and closing coil voltage/current V/A DC 220/2
2 Control circuit voltage V DC 220
3 Rated voltage / power of energy storage motor V/kW AC, DC 220/0.8
4 Energy storage time at 85-110% rated voltage s
-
7/30/2019 Vol. 12-High & Low Voltage Switch
5/49
6 07
Prdutcategry
High & Lw Vlag swih
Fr udai, wigh ad dimi
1. Pole 2 . Cross-arm 3 . Column 4 . Spring operating mechanism
5. ON-OFF indicator and density relay 6. Terminal block 7. Mechanism chamber
Drawing 1 LW-126/T4000-40 AC SF6 Circuit Breaker
a. ON position b. Break high current c. Break small current d. OFF position
1. Porcelain sleeve 2. Static main contact pedestal 3. Static main contact 4. Moving main contact 5. Thermal expansion chamber
6. Pressure chamber 7. Intake valve 8. Moving main contact pedestal 9. Spout 10. Static arcing contact
11. Moving arcing contact 12. One way valve 13. Piston 14. Pressure relief valve
Drawing 2 Principle of self-energized arc-extinguishing
Drawing 3 Circuit breaker installation foundation
n. Im Ui Daa
1 Opening force (downward) N 21000
2 Closing force (upward) N 15000
3 Total weight including mechanism and gas kg 1400
4 Dimension (L*W*H) mm 3900*710*4884
Distancefromthelivepartstoground3230
Terminalblock
8-M36-4embeddedanchorbolts
(Providedby Baiyun)
150cablehole
-
7/30/2019 Vol. 12-High & Low Voltage Switch
6/49
8 09
Prdutcategry
High & Lw Vlag swih
seondaryon
rolhemaiforLW-126/t4000-40AchighvolagesF6iruibreaker
-
7/30/2019 Vol. 12-High & Low Voltage Switch
7/49
0 11
Prdutcategry
High & Lw Vlag swih
ordr irui
Please clearly state the ollowing items when ordering:
1. Type, name, quality of circuit breaker;
2. Rated voltage, rated current, rated short circuit breaking current and rated insulation level;
3. External insulation pollution degree (or specific creepage distance);
4. Primary wiring diagram;
5. Voltage of control circuit, now only DC 220V available;
6. Voltage of energy storage motor, AC/DC 220V motor available;
7. If gas processing equipment, SF6 leakage detector, micro-moisture meter required;
8. Spare parts list: name and quantity.
-
7/30/2019 Vol. 12-High & Low Voltage Switch
8/49
2 13
Prdutcategry
High & Lw Vlag swih
High Voltage Disconnector
ovrviw
Nanjing Electric (Group) Co., Ltd. was restructured and became
the wholly owned subsidiary of Baiyun Electric Group and now
is the manufacture base of high voltage disconnectors.
Nanjing Electric (Group) Co., Ltd. (Nanjing Electro-Ceramic
Factory) has been producing high voltage disconnectors for
more than 40 years; it's one of the important manufacturers
of high voltage disconnector in our country. Products used forelectrification railway network system and si gnal indication
include GW4, GW5 and FWZ series of outdoor high voltage
disconnector, isolation load switch and equipped electric
mechanism and manual mechanism.
Rated voltages of products range from 10kV to 220kV, rated
current includes 630A, 1250A, 1600A, 2000A, 2500A, and
3150A, specific creepage distance has 16mm/kV, 20mm/kV,
25mm/kV, and 31mm/kV, which is of complete range of types
and specifications. The high voltage disconnector has high
performance and has passed the test by state or provincial test
center. Now it has tens of thousands machine units running
in the state power system, among which GW4 series are well
recognized by users to have reliable structure, flexible machine
driven system, convenient operation, stable contact resistance
etc. At present, its products have been sold to all Railway Bureaus
of the Ministry of Railways. In recent years, its metal accessories
including rod insulator cap, pedestal switch base frame etc. all
employ hot galvanizing technology, which greatly improves
the metalwork's ability to resist tarnishing. The company's
disconnector and load switches have been successfully used in
the railway projects including Beijing Kowloon Railway, Beijing
Shenyang Passenger Railway, Guanghan High-speed Rail,
Shanghai-Nanjing Intercity High-speed Rail, Guangdong-Hainan
Cross-sea Railway, Datong-Qinhuangdao Railway, Kowloon-
Canton Railway etc.
The product obtains ISO9001 Quality System Authentication.
Wrkig dii
1. 2000m or less than 3000m (3000m inclusive) above sea level
2. Surrounding ambient temperature is not higher than +40C
or lower than -30C, and not lower than -40C in severe cold
districts.
3. Seismic intensity does not exceed grade 8.
4. Wind pressure for outdoor products shall not exceed 700Pa
(equivalent to 31m/s).
5. Ice coating thickness shall not exceed 1mm in general districts
and not exceed 10mm and 20mm in heavy ice coating districts.
6. Indoor product temperature: relative temperature: daily
average value shall not be greater than 95% and monthly
mean shall not be greater than 90%. Saturated vapor pressure:
daily average value shall not be greater than 2.210-1MPa, and
monthly mean value shall not be greater than 1.810-1MPa;
when temperature drops sharply in the periods with high
humidity, it may condense.
7. The product is not applicable in the following places:
Places with fire or explosion;
Places with sharp swings, shakes or i mpacts
Places filled with chemical gases that can easily corrode
metals and insulation materials
8. Air pollution classes: no obvious pollution for the use of indoor
products; pollution classes for operating ambient of outdoor
products include class 0 (clear area), class I, class II, class III, and
class IV, which shall be specified by the technical requirements.
Note:
Accordingto theregulationsof GB5582-85ExternalInsulationPollution
Classof HighVoltageElectricPowerEquipment,the minimumnominal
specific creepage distance is 14.8mm/kV, 16mm/kV for class I, 20mm/
kV for class II, 25mm/kV for class III and 31mm/kV for class IV. Specific
creepage distance is the ratio of external insulation creepage distance
andequipmentmaximumvoltage.
If the uses requirements are beyond the above standard service
conditions, please contact with relevant departments of the company
(factory).
U
It can be used for the switch of HV electrification railway
contact network system without carrying current and
electrical isolation between the electrical equipment under
maintenance such as primary busbar and breaker and the
energized high voltage line.
Load switch can open the rated current and cut off short-
circuit current, and has obvious break distance.
sadard
1. GB1985 Alternating Current High-voltage Disconnectors
and Earthing Switches
2. GB11022 Common Technical Requirements for High Voltage
Switchgear
3. Equivalent IEC-129 (1984) publication Alternate Current
Disconnectors and Earthing Switches by equivalent
4. Equivalent IEC-694 (1980) General Specifications for High
Voltage Switchgear and Control Standards
5. GB311.1 Insulation Coordination for High Voltage Power
Transmission and Distribution Equipment
6. GB311.2-311.6 High-voltage Test Techniques
7. GB3309 Mechanical Test at Ambient Temperature for High
Voltage Switchgear
8. GB5582 External Insulation Pollution Class of High VoltageElectric Power Equipment
9. GB5273 Terminals for Transformers, High Voltage
Apparatuses and Bushings
10. GB3804-3.6kV-40.5kV High-voltage Alternating Current
Switch for Rated Voltage range from 3.6kV to 40.5kV
11. TB/T3150 High Voltage AC Disconnectors and Earthing
Switch for Electrification Railway
12. TB/T3151 High Voltage AC Load Switches for Electrification
Railway
ordr irui
1. Product model, name, rated voltage and rated current
2. Thermal stable current of the disconnector and grounding disconnector
3. Grounding disconnector: ungrounded, grounded on the right, grounded on the left, grounded on both sides
4. Creepage distance
5. Model and name of operating mechanism, working voltage of power, number of contactors for auxiliary switches, with
electromagnetic lock or not
6. Operation mode: triple-pole interlock or single-pole operation, single-pole, double-pole interlocking or triple-pole
7. Special inclination installation shall be indicated in an order (GW5).
-
7/30/2019 Vol. 12-High & Low Voltage Switch
9/49
4 15
Prdutcategry
High & Lw Vlag swih
GW4-27.5DW Single Grounding Once-through Operation Disconnector
ovrviw
GW4-27.5DW outdoor AC high voltage disconnector for electrification railway is 50HZ outdoor HV electrical equipment. It can be
used for the switch of alternate current 27.5kV contact network with voltage and without load as well as the electrical isolation
between the electrical equipment under maintenance such as HV busbar and circuit breaker and the energized high voltage line. It
can also be used for breaking and making of low capacitance current and inductive current.
ovrall Dimi Drawig
GW4-27.5DW Single Pole Multipack Figure of Single Pole Grounded Once-through Operation Disconnector (matched with CJ11A-G electric mechanism)
1. GW4- 27.5DW single pole disconnector 2. Upper hoop joint 3. 32 water gas pipelines (prepared by users) 4. Lower hoop joint
5. CJ11A-G electric-operated mechanism
Mai hial paramr
Im Ui GW4-27.5DWRated voltage kV 27.5
Rated current A 1250~3150Rated withstand current kA 31.5~40
Rated peak withstand current kA 80~100
Rated short-circuit period s 4
Short-time power frequency withstand voltageGrounded
kV80
Fracture 90
Rated lightning impulse withstand voltageGrounded
kV185
Fracture 215
Static tension of terminal
Horizontal
N
750
Transverse 750Vertical 500
Creepage distance 1200
Mechanical life time(s) 10000
Fitted device Disconnector CJ11Earthing switch CS14
GW4-110DW Three-phase Coupled Remodeling Disconnector
ovrviw
GW4- 110DW three-phase interlock remodeling structure
Im Ui GW4-40.5DW GW4-126DWRated voltage kV 40.5 126
Rated current A 1250~3150 1250~3150Rated short time withstand current kA 31.5~40 31.5~50
Rated peak withstand current kA 80~100 80~100
Rated short-circuit period s 4 4
Short-duration power-frequency withstand voltageGrounded distance
kV80 230
Fracture 90 300
Rated lightning impulse withstand voltageGrounded distance
kV185 550
Fracture 215 650
Static tension of terminal
Horizontal
N
750 1250
Lateral 750 750Vertical 500 1000
Creepage distance mm 1020~1260 3150~3910
Mechanical endurance time(s) 10000 10000
S up pl em en ta ry de vi ce D is co nn ec to r C J1 1 C J1 1Earthing switch CS14 CS14
GW4 series high voltage disconnector is single-phase dual
column horizontal open circuit structure; it's mainly composed
of base frame, rod support insulator, current-carrying part
and electric Operating device. Each phase has two support
insulators, which are respectively fixed to the bearing chock
on both sides of the base frame; they are connected by cross
member and can rotate horizontally; their intersection angle is
90. The conduction knife switch is split into halves, which are
fixed to the support insulator respectively; contact point of the
contactor is in between two support insulators. The terminal
employs flexible connection, with simple structure, reliable
contact and is convenient for repair.
GW4-126 high voltage disconnector can also be used for high-
profile layout (namely, operated with the control mechanism
drawn out). Parts and components for the intermediate driving
section will be provided along with the disconnector.
GW4-126 series can be furnished with CS14G manual control
mechanism or CJ11 electric control mechanism; the earthing
switch is furnished with CS14G manual control mechanism;
the manual control mechanism can also be used with DSW4electromagnetic lock.
It uses slot aluminum as the main conductor; it has large area of
dissipation, high intensity and is safe and reliable; the earthing
switch uses flexible configuration and can turn right and left
conveniently.
ovrall dimi drawig
Mai hial paramr
about
about
about
-
7/30/2019 Vol. 12-High & Low Voltage Switch
10/49
6 17
Prdutcategry
High & Lw Vlag swih
GW5-110D (W)/630/1250 Outdoor Triple Pole Mounted Disconnector
ovrviw
GW5-126II(DW) series disconnector is mainly composed of
three single poles; each pole is composed of base frame,
support insulator, right and left contactors, grounded knife
switch, electric Operating device etc. Two support insulators
are respectively fixed to the rotary bearings of the pedestal, in V
type. Intersection angle of axial lines is 50; bevel gear joggle is
under two bearing chocks; the right and left contactors are fixed
to the top of support insulator; rotation of the bearing chock will
drive the synchronous rotation of the support insulator, thereby
to open and close two contactors; three single poles can be
interlocked by the interlocking drawbar.
This series of disconnector can be grounded on one side,
on both sides or ungrounded. CS17F and CS17D manual
control mechanism with the angle of rotation being 90are
used respectively for it. There is mechanical interlocking and
electromagnetic lock on the control mechanism to make sure
the operating sequence is right.
In order to meet user needs, this series of products can beinstalled in five different ways, namely, horizontal installation,
inclined for 25, inclined for 50, side installation (inclined for 90
and upside down installation.
ovrall dimi drawig
1. Single pole assembly; 2. Universal joint; 3. Pin with hole; 4. water gas pipe (prepared by user);
5. Locking ring; 8. Joint; 9. Link rod assembly; 10. Water gas pipe (prepared by user);
11. Supporting rack (prepared by user); 12. Oscillating arm; 13. Bushing; 14.M6 fastening screw;
15. Grounded knife switch; 16. Split pin; 17.CS17 manual control mechanism;
GW5-110IID (W)/630,1250 (90transmission) Triple Pole Multipack Figure of Outdoor Disconnector
Im Ui GW5-40.5DW GW5-126DWRated voltage kV 40.5 126Rated current A 1250~3150 1250~3150
Rated short time withstand current kA 31.5~40 31.5~50
Rated peak withstand current kA 80~100 80~100
Rated short-circuit period S 4 4
Short-duration power-frequency withstand voltageGrounded distance
kV80 230
Fracture 90 300
Rated lightning impulse withstand voltageGrounded distance
kV185 550
Fracture 215 650
Static tension of terminal
Horizontal
N
750 1250
Lateral 750 750
Vertical 500 1000
Creepage distance mm 1020~1260 3150~3910Mechanical endurance time(s) 10000 10000
Su pplem ent ar y de vice Dis con nect or CJ11 CJ11
Earthing switch CS14 CS14
Mai hial paramr
Medium Voltage Switch
VB Vacuum Circuit Breaker
ovrviw
Application environmental conditions
Ambient temperature: upper limit +40C, lower limit - 10C;
Elevation: not exceeding 1000m;
Relative humidity: daily average value shall not be greater
than 95%; monthly average value shall not be greater than 90%;
Structural feature vacuum: with VEZA: with KYNB: special
25: 25kA32: 31.5kA40: 40kA50: 50kA
06: 630A12: 1250A16: 1600A20: 2000A25: 2500A32: 3150A40: 4000A
12kV
Rated breaking current
Type series
Rated current
Rated voltage
Product line VB vacuum circuit breaker
n. nam (ui) thial paramr
1 Rated voltage (kV ) 12
2 Rated cur ren t (A) 630, 1 250, 160 0 2000, 2500, 3150, 4 000
3 Fr eq ue nc y ( Hz ) 5 0
4 Rated short-circuit breaking current (kA) 25, 31 .5. 40 40. 50
5 Rated short-circuit making current (kA) 63, 80, 100 100, 125
6 4s rated short time withstand current (kA) 25. 31 .5. 40 40. 50
7 Rated peak withstand current (kA) 63, 80. 100 100. 1258Rated O/C current
Single capacitor bank current (A) 630 800
9 Back to back capacitor bank current (A) 400
10 1min power frequency withstand voltage (kV) 42 (Fracture: 48)
11 Impulse withstand voltage (kV) 75 (Fracture: 85)
12 Rated operating procedure O-0, 3s-CO-180s-CO (40, 50kA is O-180s-CO-180s-CO)
13 Rated short-circuit current operation time(s) 50
14 Mechanical endurance (times) 30000 20000
15 Rated breaking time (ms) 60
16 Trip time (ms) 30
17 Making time (ms) 45
18 Rated operating voltage (V) AC/DC 220V/110V
19 Rated operating current (A ) 2.0/4.0
20 Single-phase major loop resistance (without primary plug)1N=630A 1N=1250A 1600a1N2000A 1N2500A
R65 R40 R30 R25
Places without fire, inflammables, explosion hazards, chemical
corrosion and sharp vibration;
Seismic intensity: not exceeding grade 8;
For special operating ambient, please contact with the
manufacturer.
Type specication
thial paramr
Electric parameters
notlessthan1m
notlessthan2m
Earthingknife
Earthingswitchshalf
(Installatin hole)
DirectionA
-
7/30/2019 Vol. 12-High & Low Voltage Switch
11/49
8 19
Prdutcategry
High & Lw Vlag swih
srial n. nam (ui)chararii paramr
Brakig urr 40KA Brakig urr = 50kA
1 Contactor torque (mm) 8.01 9.01
2 Contacting travel (mm) 30.5
3 Average closing speed (m/s) 0.4-0.8
4 Average trip speed (m/s) 0.8-2.0
5 Jump time of contactor closing (ms) 2
6 Three-phase asynchronization (ms) 2
Mechanical parameters ovrall dimi
Lw urr
sruur
Main elements of VB vacuum circuit breaker include the operating device, driven gear, insulating boot, vacuum interrupter
Closing
spring
Hoisting hookFluctuation
conductor
Vacuum
interrupter
Flexible
connection
Insulation
drawbar
Contactor
spring
Tripspring
Lever
Chassis
Figure 3.1 Sectional View of Disconnector
Insulatingboot
Housing
Vacuum
interrupter
Operating
device Insulation
cover
Primary
plug
Valvepress
plateDrivengear
Chassis
Trippaddle
Tripfanningstrip
Closingspring
Tripknob
Closing button
Closingreleasingslab
Closingcoil
Closingwedge Contactorspring
Tripspring
Charging
motorand
gearbox
Vacuum
interrupter
Tripcoil
Figure 3.2 Device Module View Figure 3.3 Device Module View
1.Primaryplug;
2. Vacuuminterrupter;
3. Handle;
4. Counter;
5. Closingandtrip indication;
6. Insertingholeof charginghandle;
7. Secondaryplug;
8. Springchargingindication;
9. Closingbutton;
10. Tripknob
Figure 4.1.1 Outline Drawing of Low Current Breaker
chai
Figure 4.1.2 Chassis Mechanism
Tripfanningstrip
Rachet
Manualcharging
gearClosinghalf
shaft
Counter
Chargingmotor
andgearbox
Triphalfshaft
Excitationsw itch
Chargingcamshaft
Mainshaft
Contactorspring
-
7/30/2019 Vol. 12-High & Low Voltage Switch
12/49
0 21
Prdutcategry
High & Lw Vlag swih
Havy urr
Figure 4.1.3 Outline Drawing of Heavy Current Breaker
1.Primaryplug;
2.Vacuuminterrupter;
3. Handle;
4.Counter;
5.Closingandtripindication;
6.Insertingholeofcharginghandle
7.Secondaryplug;
8.Springchargingindication;
9.Closingbutton;
10.Tripknob
Secondary schematic diagram
Note:theanti-tripcircuitcanbecancelledaccordingtocustomerrequirements
TC:(tripcoil)
CC:(closingcoil)
M:(chargingmotor)
LS1~LS5,s
8,s:(limitswitch)
a1~a8:(Auxilisrycontact)
b1~b8:(Auxiliarycontact)
Y:(auxiliaryrelay)
X:(Controlrelay)
F:(Fuse)
C:(capacitor)
R1~R4:(resistor)
D1~D6:(Diode)
Test position Work position
-
7/30/2019 Vol. 12-High & Low Voltage Switch
13/49
2 23
Prdutcategry
High & Lw Vlag swih
Product lectotype
n.
VB-12 -------------------------------------
Maimdl sri
Widh
auxiliary
abi
opraig
vlag
MaidimiAi-
rip
trippig
lur
Rk-
i
oupu
a
ovr-
urr
rla
earhig
mdA B c1 c2 D e F G H J K L M n P W X Y
1 V B- 1206B25
A
W650
AC/DC110
220
528502494 494598
(608)
648
(658)
436
(443)637275280
76
(81)
78
(71)322
294
(304)150
35
20189
0:No1:
Yes
0:No
1:Yes
0:No
1:Yes
3:3a3b5:5a5b
8:8a8b
0:No
1:Yes
0:bothsides
1:
bottom
2 VB-1212B25 49
3 V B- 1206B25
W800 685 652 638 638598
(608)
648
(658)
436
(443)637275280
76
(81)
78
(71)322
294
(304)210
35
28261
4 V B- 1212B25
5 V B- 1206B32
6 V B- 1212B32
497 V B- 1216B32
8 V B- 1220B32
9 V B- 1212B40
7010 VB-1216B40
11 VB-1220B40
12 VB-1225B40
W1000 880 852 836 840 5 87 637 350
700
3 10 2 96 8 5 8 6 3 43 2 62 2 75
109
25262
13 VB-1232B40
14 VB-1240B4070
15 VB-1212B50
74616 VB-1232B50109
17 VB-1240B50
e.g. VB-1212B32A/W800DC220V100500
VBP Indoor Solid-sealed Pole Vacuum Circuit Breaker
Note: 1. Number in the brackets means special models
2. Please contact with the manufacturer for other special models needed
Prdu Lyp Irmai sh
Procurement
company
CompanyAdd.
Proposing Dept. Promoter Tel:
Endcustomer
Model required Quantity
ModelRated
voltage
Rated
current
Type
series
Ratedbreaking
current
Structural
feature
Auxiliary
cabinetwidth
Operational
powersupply
Anti-
trip
Closing
closure
Rocking-in
closure
Output
contact
Over-current
release
Earthing
form
Reference
value VB - 1 2: 12 kV
06:630A
12:1250A
20:2000A
25:2500A
32:3150A
40:4000A
B
25:25kA
32:31.5kA
40:40kA
50:50kA
Vacuum:
withVEZ
A:withKYN
B:special
/
W650
W800W1000
AC220V
AC110V
DC220V
DC110V
0:No
1:Yes
0:No
1:Yes
0:No
1:Yes
3:3A3B
5:5A5B8:8A8B
0:No
1:Yes
0:both
sides1:bottom
VB - 12 B /
Note:
1.Standardconfiguration:rockinghandle,charginghandle(1 setforevery3 switches)
2.Pleasefill inthefollowingcolumnforotherconfigurationorspecialrequirements.
Otherspecialrequirements
ovrviw
VBP indoor solid-sealed pole vacuum circuit breaker is 12kV-
24kV three-phase alternating current 50Hz indoor high voltage
switchgear; it's applicable to the control and protective cable,
overhead line, transformer, current motor, current generator and
capacitor bank in power transformation and distribution station,
and can be widely used in power plant, power grid, metallurgy,
petrochemical, and urban infrastructure construction projects
such as airports, buildings, metros etc.
chararii
High reliability
Compared with traditional integral type breaker, the number
of solid-sealed polar pole breaker's parts and components,
conductor faying surface, and connecting fasteners is greatly
reduced, which simplifies the assembling of major loop, reduces
the loop resistance, and greatly improves the reliability of
connection of major galvanic circle.
Stable insulating property
Surface of vacuum interrupter is poured with epoxy, so the
impact of polar pole's external environment on vacuum
interrupter is reduced to the minimum; its insulating ability
can protect the breaker from being affected by dust, moisture,
beasties, dews and pollution, so it can fully meet the creeping
distance requirements of class 2 polluted districts specified in
GB/DL.
Firmer structure
Epoxy medium can protect the vacuum interrupter better,
and protect it from accident mechanical damages during
assembling and transportation.
Miniaturization
The use of epoxy as insulating medium can greatly shorten the
phase spacing, and reduce the volume of the vacuum breaker
and its auxiliary switch cabinet.
Free o maintenance
The entire polar pole is poured to an integral unit, so the
vacuum interrupter can be better protected; the maintenance
free feature of vacuum interrupter enables the breaker to be
maintenance free.
1. Dynamicconductingrod
2. Guidesleeve
3. Corrugatedtube
4. Dynamiccoverboard
5. Shieldcoverofcorrugatedtube
6. Ceramicpackage
7. Shieldtube
8. Contactorsystem
9. Staticconductingrod
10. Staticcoverboard
-
7/30/2019 Vol. 12-High & Low Voltage Switch
14/49
4 25
Prdutcategry
High & Lw Vlag swih
More environment riendly
Solid-sealed polar pole breaker can to a certain degree replace
SF6 gas as protective insulation, so it's more environment
friendly.
Satisaction o diferent standards
VBP indoor solid-sealed pole vacuum breaker can satisfy
different GB, DL standards.
Working condition
Ambient temperature: upper limit +40C, lower limit -15C;
Elevation: not exceeding 3000m
Relative humidity: daily average value shall not be greater than
95%; monthly average value shall not be greater than 90%
Places: indoor, without fire, inflammables, explosion hazards,
chemical corrosion and sharp vibration
Seismic intensity: not exceeding grade 8;
thial paramr
Rated short-circuit
breaking current 25:
25kA;32:31.5kA; 40:40kA
Product series
Rated current
06: 63A; 12:1250A;
Rated voltage:
12:12KV; 24:24KV;
Solid-sealed polar pole
Design serial number
Vacuum circuit breaker
tabl 1 elri Paramr
n Im Ui thial paramr
1 Rated voltage kV 12, 24
2Rated
insulation level
Lightning impulse withstandvoltage
kV
To ground 75 (fracture 85), to ground 125 (fracture 145)
1min power frequency withstandvoltage
To ground 42 (fracture 48), to ground 65 (fracture 79)
3 Rated frequency Hz 50
4 Rated current A 630, 1250, 1600 2000, 3150, 4000
5 R ated short-circuit break ing current
kA
25, 31.5, 40 40
6 Rated short-circuit making current (peak value) 63, 80, 100 100
7 Rated peak withstand current 63, 80, 100 100
8 Rated short time withstand current/ duration kA/s 25/4, 31.5/4, 40/4 40/4
9 Rated O/Ccurrent
Single capacitor bank currentA
630 800
10 Back t o back capaci to r bank cu rren t 400
11 Trip time ms 30
12 Making time 45
13 Mechanical endurance time(s) 20000
14 Rated breaking time ms 60
15 Rated operating voltage V AC/DC 220V/110V
16 Rated operating current A 2.0/4.0
17 R ated operating sequence O-0 .3s - C O - 180s-CO
18 M ajo r loo p resi st an ce ( 20C) M 0 ln =630A60 ln=1250A 40 1600=Sln=s2000A30 3150A=Sln=S4000A25
For other special requirements beyond the above stated
application ambient conditions, please contact with the
manufacturer.
Mdl dripi
tabl 2 Mhaial Paramr
n. Im Uichararii paramr
Rad vlag 12kV Rad vlag 24kV1 Contactor torque mm 91 131
2 Contactor overtravel 3.5 0.5 3 0.5
3 Average closing speed m/s 0.4~0.8 0.6~1.0
4 Average trip speed 1.0~1.8 1.3~1.7
5 Closing bounce time ms 2
6 Asy nchronization of c losing and trip 2
cirui brakr uid viw
Heavy current breaker o rated voltage 12kVLow current breaker o rated voltage 12kV
Low current breaker o rated voltage 24kV Heavy current breaker o rated voltage 24kV
Secondaryplug
Trippingbutton
Closingandtrip
indicationSpecification
Counter
Uppercontactarm
Solid-sealedpolarpole
PrimaryplugLowercontactarmInsertingholeofcharginghandleClosingbutton
Springcharging
indication
Insertingholeof
crankhandle
Secondaryplug
Trippingbutton
Closingandtripindication
Specification
Insertingholeof
crankhandle
Coolinggrid
PrimaryplugUppercontactarm
Solid-sealedpolarpole
CounterLowercontactarmInsertingholeofcharginghandleClosingbutton
Springchargingindication
Secondaryplug
Counter
Trippingbutton
Closingandtrip indication
Specification
PrimaryplugUppercontactarm
Solid-sealedpolarpole
Lowercontactarm
Insertingholeof charginghandle
Closingbutton
Springchargingindication
Insertinghole ofcrankhandle
Secondaryplug
Tripbutton
Closingandtripindication
Specification
Coolinggrid
Primaryplug
Uppercontactarm
Solid-sealedpolarpole
LowercontactarmCounter
Insertingholeof charginghandleClosingbutton
Springcharging
indication
Insertingholeof crank
handle
-
7/30/2019 Vol. 12-High & Low Voltage Switch
15/49
6 27
Prdutcategry
High & Lw Vlag swih
Iral ruur irui brakr
Circuitboard
Tripcoil
Tripspring
Mainshaft
Closingcoil
Rocking-inclosure
Closingspring
Auxiliaryswitch
Springdevice
Draftgear
Insertingmouthofcrankhandle
ovrall dimi irui brak
Overall dimension low current breaker o rated
voltage 12kV
1.Primaryplug; 2.Upperconductingrod; 3.Solid-sealedpolarpole;
4.Lowerconductingrod; 5.Secondaryplug; 6.Counter; 7.Tripbutton;
8.Closingandtripindication; 9.Handle; 10.Insertingholeofcharginghandle;
11.Closingbutton; 12.Springchargingindication
Overall dimension o rated voltage 24kV heavy current breaker
1.Tripbutton; 2. Closingbutton; 3. Closingandtripindication; 4. Secondaryplug;
5. Counter; 6. Insertingholeofcharginghandle; 7. Springchargingindication;
8.Handle; 9.Primaryplug; 10.Uppercontactarm; 11.Solid-sealedpolarpole;
12.Lowercontactarm
1. Tripbutton;
2. Closingbutton;
3. Closingandtripindication;
4. Secondaryplug;
5. Counter;
6. Insertingholeofcharginghandle;
7. Springchargingindication;
8.Handle;
9. Primaryplug;
10. Uppercontactarm;
11. Solid-sealedpolarpole;
12. Lowercontactarm
Overall dimension o rated voltage 24kV low current breaker
1. Tripbutton;
2. Closingbutton;
3. Closingandtripindication;
4. Secondaryplug;
5. Counter;
6. Insertingholeofcharginghandle;
7. Springchargingindication;
8.Handle;
9. Primaryplug;
10. Uppercontactarm;
11. Solid-sealedpolarpole;
12. Lowercontactarm
Prdu li h
n.
Mai dimi
Mai mdl
Widh
auxiliary
abi
opraig
vlag
Ai-
rip
clig
lur
Rk-i
lur
oupu
a
ovr-
urr
rla
earhig
mdA B c D e F G H J K L M n
1 VBP-1206B25
W800
DC/AC110220
685 652 638 6 08 4 36 641 280 2 75 76 78 210 304
0: No1:
Yes
0: No1: Yes
0: No1: Yes
3:3a3b5:5a5b8:8a8b
0: No1: Yes
0: bothsides
1:bottom
2 VBP-1212B25
3 VBP-1212B32
4 VBP-1212B40
5 VBP-1216B32
6 VBP-1216B40
7 VBP-1220B32
8 VBP-1220B40
9 VBP-1232B40
W1000 885 842
840 5 87 350 700 296 3 10 85 86 275 29410 VBP-1240B40
11 VBP-2406B25
838 747 447 775 326 310 71 126 275 336 454
12 VBP-2412B25
13 VBP-2412B32
14 VBP-2416B32
15 VBP-2420B32
16 VBP-2432B32 373 447 775 346 310 71 126 275 336 443
e.g. VBP-2432B32/W1000 DC220V 100500
Overall dimension heavy current breaker o
rated voltage 12kV
-
7/30/2019 Vol. 12-High & Low Voltage Switch
16/49
8 29
Prdutcategry
High & Lw Vlag swih
shmai diagram rl lp Iallai ad mmiiig
Inspection beore installation
After unpacking the circuit breaker, check whether the
assemblies are complete according to the packing list; confirm
there are no damages in its appearance, no water log or
impurities; make sure the screws are tightened, the major loop
is firmly fastened and the product can run normally. After the
inspection, clean the dust on the surface. Check the degree
of vacuum of the vacuum interrupter using power frequency
withstand voltage method (trip the breaker and impose power-
frequency voltage to the fracture).Install the machine after it's
qualified in inspection.
Commissioning
Products which are in good condition after unpacking
inspection need no commissioning; only the breakers
which do not meet the technical requirements or whose
parts and components are changed need commissioning.
(Commissioning shall be conducted with the help of the
company's technicians; if detailed product information is
required, please contact with our company directly)
First of all, adjust the adjusting nut at the lower end of the
dynamic conducting rod of vacuum interrupter, so that the
vacuum interrupter's contactor torque and contactor overtravel
can reach the specified value of the specification; Then check
whether all parts of the shaft are correctly connected and
whether the oil bumper is normal; Finally, adjust the device so
that it can operate normally; there is be no clamping stagnation
in manual operation, electro control, charging, closing and
tripping. After commissioning of the entire breaker, it shall meet
the requirements of parameters list in table 2.
oprai ad maia
Operational readiness inspection
Check whether the installed base of breaker is level and whether
the fundamental plane can bear the weight of switch and
relevant electrical force;
M:chargingmotor
CC:closingelectromagnet
TC:tripelectromagnet
1WK1-5:limitswitch
FK:auxiliaryswitch
Kj:controlrelay
C1-C2:capacitor
Rd:fuse
R1-R4:resistor
S8-S9:auxiliaryswitch(containedbythechassis)
D1-D6:diode
Fj:auxiliaryrelay
Check whether the connecting line is broken;
Check whether the breaker is damaged mechanically;
Conduct power frequency withstand voltage test to the breaker
to check its insulation level.
Manual closing and trip
Manual charging: insert the charging handle from the inserting
hole of charging handle on the panel to store energy; when the
device ticktocks, and the charging sign points to the charging
position, it shows the spring device has finished charging.
Manual closing: press the closing button on the panel, the
closing-trip sign will show the closedposition, meaning that it's
closed.
Manual trip: press the trip knob on the panel, the closing-trip
sign will show the tripping position, meaning that it's tripping.
Electric closing and trip
Charging operation: connect the control loop of the breaker,
power on and after the charging signal is sent out, the breaker's
control wiring is powered on; the motor will be powered on
through the control loop and then it rotates and drives the
closing spring to store energy. After the closing spring finishes
charging, the limit switch will cut off the motor power and the
charging sign will point to the charging position.
Closing operation: after the closing instruction is given out,
the closing coil excites and the iron core moves to hit the
closing interlocking; the closing spring releases energy and the
breaker will be switched on; after the closing operation, the
closing-trip sign will show the closed position, and under suchcircumstances the charging device is in free state.
Tripping operation: after the tripping instruction is given out, the
trip coil excites and the iron core moves to separate the tripping
interlocking; the tripping spring releases energy and the breaker
will be switched off; after the tripping operation, the closing-trip
sign will show the switch-off state.
Test position Working condition
-
7/30/2019 Vol. 12-High & Low Voltage Switch
17/49
0 31
Prdutcategry
High & Lw Vlag swih
Maintenance and repair
The maintenance intervals and contents are changing along
with the service conditions, on/off times and the level of
breaking current.
Normally running breaker shall be maintained regularly; clean
the dust on the insulation surface, and all moving parts shall be
poured with lubricating oil regularly;
Check whether the screws are loosened after operating for
2000 times; if screws are l oosened, tighten them timely;
Check immediately when there are closing or tripping faults;
During maintenance, the vacuum interrupter shall not be hit
with hard objects (such as tools);
Mechanical features testing and adjustment of the breaker
shall only be conducted by professionals.
srag
The breaker shall be placed in the room that is dry, ventilated,
damp proof and has no noxious gas; pay attention to the
following notes and remember to fi x the dust-proof cover.
The storage place shall be dry and kept out of the sun;
Avoid corrosive gas and dust;
Avoid places with sharp variation in temperature (sharp
variation in temperature may cause frosting, which may reduce
the performance or cause defects).
Aahm papr
Quality certificate
Factory inspection report
Checklist of attachment spares, parts and accessories
Packing list
Installation and instruction manual
Other relevant documents
ordrig irui
Type and name of breaker
Rated voltage (kv)
Rated current (A)
Rated short-circuit breaking current ( kA)
Quantity
Operating device voltage (AC/DC)
Accessories
If users have other special requirements (such as elevation,
temperature etc.), please make notes before placing orders.
n. nam U
1 Manual charg ing handl e For manual charg ing of breaker
2 R ocking handl e of breaker R ocking in and out of breaker
3 58-core a ir socket Plug match between secondary socket and vacuum c ircuit breaker
Li ari
Prdu Lyp Irmai sh
Procurement companyCompany Add.
Proposing Dept. Tel:
End customer
Model required
ModelRated
voltageRated
currentTypeseries
Ratedbreakingcurrent
Structuralfeature
Auxiliarycabinetwidth
Operatio-nal power
supply
Anti-trip
Closingclosure
Rock-inclosure
Outputcontact
Over-currentrelease
Earthingmode
Referencevalue
VBP - 12:12kV
06:630A12:1250A16:1600A20:2000A25:2500A32:3150A40:4000A
B25:25kA
32:31.5kA40:40kA
Vacuum: withVEZ
A: with KYNB: special
W650W800
W1000
AC220VAC110VDC220VDC110V
0: No1: Yes
0: No1: Yes
0: No1: Yes
0: No1: Yes
0: both sides1: bottom
VBP - 12 B
Note:Standard configuration: rocking handle, charging handle (1 set for every 3 switches)Please fill in the following column for other configuration or special requirements.
Other special requirements
-
7/30/2019 Vol. 12-High & Low Voltage Switch
18/49
2 33
Prdutcategry
High & Lw Vlag swih
VK Vacuum Circuit Breaker (Designated Sales Region)
Miiaurizai dig
It adopts three-phase insulating boot which can be used
for inter-phase and phase-ground insulation and support of
interrupter; it's delicate in appearance, compact in structure,
small in size and light in weight. Rear part of the insulating boot
has insulation cap which can realize the omniseal of breaker; it
can be furnished with a 650 mm wide cabinet.
Larg rpig dia vauum irrupr
Surface creeping distance of the corrugated pipe interrupter
produced by Toshiba Corporation exceeds 240mm, making it
safer and more reliable in use.
cld prai
Bottom of the breaker has a chassis and the use of cabinet can
realize closed operation, making it safer and more convenient.
High rliabiliy
From design to production, VK type vacuum circuit breaker is
under strict quality control system.
L maia
VK vacuum circuit breaker needs no special maintenance;
besides, with special structural design, it's easy to operate and
repair.
Lg rvi li
Mechanical endurance of Vk vacuum circuit breaker is >20000
times, and rated short-circuit current opening is >50 times.
n pllui virm
Vacuum circuit breaker has no decomposed product and will
generate no pollution to environment; there is little noise during
its operation.
Reliable vacuum circuit breaker
With the technical support of Toshiba which is most
experienced in the manufacturing of vacuum equipment
and the introduction of Toshiba's advanced manufacture and
monitoring equipment, Guangzhou Toshiba Baiyun Electric
Equipment Co., Ltd. will provide good quality and highly reliable
vacuum circuit breakers to the vast customers.
Toshiba world leading vacuum technique
Toshiba has been dedicated to improving and developing
vacuum technique since 1962.
Now its annual output exceeds 300 million, which is leading
in the world
The p roduct has l arge surfac e cre eping distance and
strong pollution resistance ability, which can meet the market
demands in China
Patented technology of longitudinal magnetic field, strong
ability in opening circuit
More than 40 years' experience in manufacturing and
operation, high reliability
ovrviw
Product overview
VK vacuum circuit breaker is produced by Guangzhou Toshiba
Baiyun Electric Equipment Co., Ltd. through introducing the
improved technology of Toshiba. The product is of omniseal
handcart type; its general layout is suspension type; it adopts
the three-phase integral insulating boot and is used for inter-
phase and phase-ground insulation and fixed interrupter; It
uses the charging spring device, has the functions of manual
charging and electric charging, and has anti-bouncer. The
operating device has mechanical and electric interlock which
can prevent maloperation. At its bottom there is chassis for
closed operation.
VK type vacuum circuit breaker is 3.6 ~ 12kV three-phase
alternating current 50Hz indoor high voltage switchgear; it can
be used for the control or protection of power transmission and
distribution system in power plants, substations and industrial
and mining companies, especially for opening circuit in places
with vital power load and frequent operations.
Characteristics
Rliabl brakig prrma
VK type vacuum circuit breaker adopts the high-performance
vacuum interrupter produced by Toshiba Corporation; during
breaking, the electric arc in the vacuum can diffuse at a high
speed, which can realize arc quenching when the current
reaches zero for the first time.
sa ad rliabl
Vacuum circuit breaker takes vacuum as the arc-extinguishing
medium which will generate no explosion and fire during
breaking.
saiai dir adard
VK vacuum circuit breaker can meet GB, DL, IEC, and JEC
standards.
Working condition
Ambient temperature: upper limit +40C, lower limit - 15C;
Elevation: not exceeding 1000m;
Relative humidity: daily average value shall not be greater than
95%; monthly average value shall not be greater than 90%;
Places without fire, inflammables, explosion hazards, chemical
corrosion and sharp vibration;
Seismic intensity: not exceeding grade 8;
For special operating ambient, please contact with the
manufacturer.
Model description
Structural
feature
Vacuum:withVEZ
A:withKYN B:special
25:25kA; 32:31.5kA
40:40kA; 50:50kA
06:630A
12:1250A
16:1600A
20:2500A
32:3150A
40:4000A
12kV
Ratedbreakingcurrent
Type series
Rated current
Rated voltage
Product series VKvacuumcircuitbreaker
-
7/30/2019 Vol. 12-High & Low Voltage Switch
19/49
4 35
Prdutcategry
High & Lw Vlag swih
Mechanical parameters
sial viwthial paramr
Electric parameters
n. nam (ui) thial paramr
1 Rated voltage(kv) 12
2 Rated current(A) 630, 1250, 1600 2000, 2500, 3150, 4000
3 Frequency (Hz) 50
4 Rated short-circuit breaking current( kA) 25, 31 .5. 40 40. 50
5 Rated short-circuit making current ( kA) 63, 80, 100 100, 125
6 4s rated short time withstand current ( kA) 25. 31 .5. 40 40. 50
7 Rated peak withstand current ( kA) 63, 80. 100 100. 125
8 Rated O/Ccurrent
Single capacitor bank current (A) 630 8009 Back to back capacitor bank current (A) 400
10 1min power frequency withstand voltage(kV) 42 (fracture: 48)
1 1 I mp ul se w it hs ta nd v ol ta ge ( k V) 7 5 ( fr ac tu re : 8 5)
12 R ated operating procedure O-0 .3s-CO-180s-CO (40 , 50kA jO-180s-CO-180s-CO)
13 R ated short-c ircuit current operation t imes 50
14 Mechanical endurance (times) 30000 20000
15 Rated open circuit time (ms) 60
16 Trip time(ms) 30
17 Making time(ms) 45
18 R ated opera ti ng volt age( V) AC/DC 220V/110V
19 Rated operating current(A) 2.0/4.0
20 Single-phase major loop resistance (without primary plug)I n=630A In=1250A 1600AI n2000A I n2500A
R60na R40na R30nD
n. nam (ui)chararii paramr
Brakig urr40KA Brakig urr = 50kA
1 Open contact clearance (mm) 8.01 9.01
2 Contacting travel (mm) 30.5
3 Average closing speed (m/s) 0.4-0.8
4 Average trip speed (m/s) 0.8-2.0
5 Ju mp ti me of co nt act or clos ing (ms )
-
7/30/2019 Vol. 12-High & Low Voltage Switch
20/49
6 37
Prdutcategry
High & Lw Vlag swih
Structure o the operating device
opraig dvi
The operating device adopts four-bar structure. During
closing, the closing spring drives the closing camshaft
to rotate, and rotation of cam will press the four bars to
drive the main shaft to close. During tripping, the tripping
fanning strip rotates and drives the connecting rod to
activate the four bars, so that the four bars lose balance;
the quick moving of four bars will drive the rotation of the
main shaft to open.
On the device there is a line indicating the abrasion state of
contactor and the abrasion of contactor can be observed
from its front side. For details, please refer to the validation
of contactor abrasion in the maintenance and repair part.
Lad hararii
During closing of vacuum circuit breaker, the closing spring
release energy and draw and press the trip and contractor
spring respectively; the trip and contactor spring store energy.
Figure 3.3 Outline drawing of heavy current breaker(2500-4000A)
Secondaryplugofcontrolloop
Insertingholeof charginghandle
Closing/tripi ndication
(closing:red;trip:green)
Counter
Insertingholeof crankhandle
Tripbutton
Closingbutton (underneaththe interlocking
coverboard;thecoverboardis optional)
Chargingindication
(white:discharged;yellow:charged)
Specification
Primaryplug
Insulationcover
Vacuuminterrupter
Insulatingboot
Figure 3.4 View of device on the breaker
Closingspri ng
Circuitboard
Auxiliaryswitch
Closingcoil
Deviceinterlock
Contactorabrasion mark
Electric chassis operationmotor(optional)
Rockingin interlockelectromagnet
Rocking-incl osure
Tripcoil
Tripspring
Mainshaft
Contactorspring
Draftgear
Trippingfanningstrip
Rachet
Manualcharging gear
Closinghalfshaft
Counter
Chargingmotorandgearbox
Triphalfshaft
Limitswitch
Chargingcamshaft
Mainshaft
Contactorspring
Figure 3.5 Device Module View
Trippaddle
Trippingfanningstrip
Closingspring
Tripbutton
Closingbutton
Closingreleasingslab
Closingcoil
Tripcoil
Vacuuminterrupter
Chargingmotorandgearbox
Tripspring
Closingwedge Contactorspring
Figure 3.6 Device Module View
Comparison between VK device and like products :
The most proper load characteristics Higher calorie running
Low fusion welding rate of vacuum interru pter contactor
Figure 3.7 Load characteristics of the device
During tripping, the trip and contactor spring release energy
and act together to separate the dynamic & static contactors of
the vacuum interrupter quickly.
-
7/30/2019 Vol. 12-High & Low Voltage Switch
21/49
8 39
Prdutcategry
High & Lw Vlag swih
B Internal structure C Conditions at the arc
Figure 3.8 Structure of vacuum interrupter and drawing of arc extinction principle
Staticcontactor
Ceramicpackage
Metalbellows
Shieldcover
Dynamicc ontactor
Structure and principle o vacuum interrupter
The interrupter adopts the longitudinal magnetic field electrode
technology and controls the electric arc through the magnetic
field to realize fast arc extinction.
With the action of the current flowing through the electrode,
there is longitudinal magnetic field generated between the
contactors. With the action of the longitudinal magnetic field,
the electric arc rotates on the electrode surface and diffuse to
the electrode surface fast, so arc voltage is low and stable and
there is little contact loss, so that the contactor of interruptercan work for a longer time.
trippig prai
Press the trip button and the breaker opens. Then, the closing
and trip indication shows "open".
opraial mhd ad ai pifai
Manual operation
chargig prai
See figure 4.1-4.2: insert the charging handle, and shake it
several times (about 7 times) and it will click. Then the closingspring charging indication changes from white (discharged) to
yellow (charged), showing that it has entered to the charged
state.
clig prai
Press the closing button and the breaker closes. Then, the
closing and trip indication shows "closed"; closing charging
indication shows "white" (discharged).
A Currentandmagneticfield
Inserting hole of
charging handle
Figure 4.1 Manual operation drawing
Trip button
Closing button
Closing and
trip indication
Charging
indication
Figure 4.2 Manual operation indication
Warning
The following operations may cause breaker defects:
Press the closing button under closed position.
Press the closing button while pressing the trip
button.
Electric operation
chargig prai
Connect the control loop of the breaker and power on,
the current motor will rotate and the closing spring begins
charging. When the charging indication changes from "white"
(discharged) to "yellow" (charged), it means the closing spring
has finished charging.
clig prai
After the closing instruction is given out, the closing coil excites
and breaker is closed. After it's closed, the current motor
continues rotating, till the closing spring finishes charging.
The closing and trip indication will show "closed". The closing
spring's charging indication shows "yellow" (charged).
trippig prai
After the tripping instruction is given out, the trip coil excites
and breaker is open. Then, the closing and trip indication shows
"open".
Action specication
Ai rl lp
Note
Do not operate the breaker when the panel
is discharged, in case there are damages and
accidents.
circumstances, if the closing instruction is given out (impose
pressure on +HM-N1 point), the breaker will close when the
closing coil CC excites (about 40ms). When the breaker closes,
the auxiliary switches b5 and b6 switch and closing coil CC
terminates excitation. Then the stabilizer Y excites and forms the
protective circuit of closing and tripping circuit.
Charging action
When the breaker closes, the limit switch closes at the same
time; the control relay X excites and starts the charging function.
After the control relay excites, the charging circuit is switched
on; the current motor M rotates and drives the spring to charge;
after the spring finishes charging (about 4s), the li mit switch LS1-
LS2 breaks, and control relay X terminates excitation.
Tripping action
Only a1, a2 and TC are related to breaker tripping; when
conditions allow, if the tripping instruction is given out (impose
pressure on +FM-N2 point), the breaker will open when the
trip coil excites (about 25ms). When the breaker opens, auxiliary
switches a1 and a2 switch and trip coil TC terminates excitation.
Note: refer to section 5.3 Secondary Schematic Diagram for all
contact points.
DangerousPlease keep off, for fear of casualties due to
electric shock.
Closing action
After the closing spring finishes charging, if the breaker is in
open status and meet the requirements for closing of the
breaker, its control loop is shown in figure 4.3. Under such
1.Whenthelimit switchLScloses,the closingspringbeginscharging
2.Whenthelimit switchLSopens,theclosingspringfinishescharging
3.Closinginstruction; 4.Theclosingactionbegins(thetripspringbeginscharging)
5.Trippinginstruction; 6.Trippingactionbegins; 7.Breakercloses; 8.Breakeropens
Figure 4.3 Control Loop Operation
-
7/30/2019 Vol. 12-High & Low Voltage Switch
22/49
0 41
Prdutcategry
High & Lw Vlag swih
Dvi ai
NoteKeep your hands or any part of your body from
the device, for fear of jammed injuries.
Closing action
Figure 4.4 (A) is the illustrative drawing showing the open status
of the breaker, when the closing spring is charging (waiting for
closing). Under such circumstances, press the closing button
or drive the closing wedge through the closing coil, so that the
cam can rotate fast as shown in figure 4.4 (B), that's the closed
position.
Charging action
The breaker is kept at the closed postion as shown in figure 4.4
(B); drive the charging crank handle electrically or manually to
rotate the closing cam and start the charging function. When
the roller on the closing cam touches the closing wedge, it
finishes charging.
Tripping action
Press the trip button or drive the trip axis through the trip coil
and the device will return to the open status as shown in figure
4.4 (A).
ovrall dimi
Low current
1Primaryplug
2Vacuum interrupter
3 Handle
4Counter
5Closingandtripindication
6Insertingholeofcharginghandle
7Secondaryplug
8Springchargingindication9Closingbutton
10Tripbutton
Figure 5.1 Outline Drawing of Low Circuit Breaker
Figure 4.4 Operation of Device
A B
-
7/30/2019 Vol. 12-High & Low Voltage Switch
23/49
2 43
Prdutcategry
High & Lw Vlag swih
Product selection sheet
n.
------------------------------------- R-
markMaimdl
sriW. aux.
abiU
Mai dimi Ai-rip
cliglur
Rak-ilur
oupua
oc.rip
earhigmd
elrihaiA B c1 c2 D e F G H J K L M n P W X Y
1VK-
1206B25W650
AC/DC110220
528502494494608 658 44363729828981 71322 304165
35
20189
0: No1:
Yes
0: No1: Yes
0: No1: Yes
0:No1:
Yes
0: bothsides
1:bottom
0: No1: Yes
WithToshibaVENcabinet
2VK-
1212B2549
3VK-
1206B25
W 800 685652638638608 658 44363729828981 71322304200
35
38261
4VK-
1212B25
495VK-
1212B32
6 VK-1212B40
7VK-
1216B4070
8VK-
1220B40
9VK-
1225B40
W1000 880 852836840712 762 472746375284 83 86343387275
109
25362
10VK-
1232B40
11VK-
1240B40
12VK-
1212B5070
13VK-
1232B50109
14VK-
1240B50
15VK-
1206B25
A
W 65 0 5 28 50 24 94 49 4598
(608)648
(658)436
(443)637275280
76(81)
78(71)
322294
(304)150
35
20189
withKYN28/KYN
44cabinet
16VK-
1212B2549
17VK-
1206B25
W 800 685652638638598
(608)648
(658)436(443)
63727528076
(81)78
(71)322
294(304)
210
35
28261
18VK-
1212B25
4919VK-
1212B32
20VK-
1212B40
21VK-
1216B4070
22
VK-
1220B40
23VK-
1225B40
W 1000 880852836840587 637 350
700
310296 85 86343262275
109
25362
24VK-
1232B40
25VK-
1240B40
26VK-
1212B50
746
70
27VK-
1232B50109
28VK-
1240B50
e.g.
Note: 1. Number in the brackets means special models
2. For other models, please contact with the manufacturer
Heavy current
Chassis
Note1:Chooseonefromthetwo groundingmodes
Figure 5.2 Chassis Mechanism
1 Primaryplug
2 Vacuuminterrupter
3 Handle
4 Counter
5 Closingandtripindication
6 Insertingholeofcharginghandle
7 Secondaryplug
8 Springchargingindication
9 Closingbutton
10 Tripbutton
Figure 5.3 Outline Drawing of Heavy Current Breaker
Groundingbusbar
Groundingclamps
attwosides
interlockpl ate
-
7/30/2019 Vol. 12-High & Low Voltage Switch
24/49
4 45
Prdutcategry
High & Lw Vlag swih
VY Vacuum Circuit Breaker (Designated Sales Region)
ovrviw
VY-40 indoor AC high voltage vacuum circuit breaker is mainly
used in three-phase alternating current 50Hz, 40.5kV power
system for opening and closing load current, overload and
short-circuit current; it can be used in the places with frequent
operation, and is suitable for the control and protection in
power plants, transformer substations, power equipment and
power lines.
The breaker adopts spring charging control mechanism and
the operational power supply can be DC or AC, which is very
convenient; the product is characterized by good performance,
high reliability, convenience in repair and maintenance, and
long maintenance interval.
chararii
The breaker adopts the integral ar rangement structure
with the vacuum interrupter on the top and the device at the
bottom, which is convenient for commissioning;
It adopts the compound insulation structure with air and
epoxy material, which is compact in design and li ght in weight;
The inter rupter a dopts l ongitudinal magnetic f ield a rc
extinction, which is of low closure property and fine asymmetric
breaking performance;
Simple spring control mechanism; 10000 times of
maintenance free operation;
It adopts the lead screw propelling device, making it labor
saving, stable, and have good self-locking performance.
Wrkig dii
Ambient temperature: upper limit +40C, lower limit - 15C;
Elevation: not exceeding 1000m;
Relative humidity: daily average value shall not be greater than
95%; monthly average value shall not be greater than 90%;
Places: indoor, without fire, inflammables, explosion hazards,
chemical corrosion and sharp vibration
Seismic intensity: not exceeding grade 8;
Special requirements can be made in orders.
Mdl dripi
Irdui ruural ui
Structure
VY - 40 indoor AC high voltage vacuum circuit breaker (breaker
for short hereinafter) adopts the vertical arrangement structure,
which effectively reduces the depth of breaker. The breaker
adopts compound insulation structure; the three-phase
interrupter and conductors are separated by three independent
epoxy insulating cylinders. Compound insulation reduces the
size of breaker. With the use of compound insulation structure,
the breaker can meet the requirements of air i nsulation distance
and creeping distance in normal operation. The main galvanic
circle's vacuum interrupter and conductor are installed in the
insulating cylinder, so the inter-phase distance is only 300mm.
Electrical connection of the major loop adopts fixed type
Designseriesnumber
Ratedshort-circuitbreakingcurrent(kA):25, 31.5
Ratedcurrent(A):J:63 0,M:1250,N:1600 ,P: 2000
Ratedvoltage: 40.5kV
Productseries
Vacuumcircuit breaker
connection, which has high reliability.
The loop resistance of vacuum interrupter under rated contact
pressure is less than 50u. :
The control device adopts the spring control mechanism
especially designed for such new style breaker and is fixed inside
the framework. Its design characteristics are more suitable for
such vertical arrangement of the breaker, making it become
an inseparable part of the entire structure of the breaker. The
device is simply designed and its output curve can well meet
the requirements of the interrupter. Its performance can better
fit the characteristics and requirements of 40.5kV vacuum circuit
breaker.
The breaker is generally reasonable in overall arrangement,
delicate in appearance and simple and flexible in operation;
it's characterized by reliable electric property, long service life,
convenient repair and the maintenance free feature. It's suitable
for various places and can be used in the places with harsh
operating conditions.
Circuit breaker outside view
Figure 1 Panel Appearance
Counter
Closingbutton
Tripbutton
Chargingindication
Trippingindication
Insertingholeof charginghandle
Specification
Secondaryplugof
controlloop
Handle
Insertingholeof
handle
Operatinginstructi on
forpropellingdevice
Emergencytrip button
Earthinginterlock handle
Primaryplug
Contactarm
Openingpart
Screwrod
Figure 2 Circuit Breaker Appearance
-
7/30/2019 Vol. 12-High & Low Voltage Switch
25/49
6 47
Prdutcategry
High & Lw Vlag swih
opraig priipl
Arc extinction principle
The vacuum interrupter for the breaker has high degree of
vacuum. When the dynamic and static contactors are charged
and open when driven by the operating device, vacuum arc
will be produced between the two contactors. Besides, due
to the special structure of contactor, there may be proper
longitudinal magnetic field generated between two contactors.
As a result, the vacuum arc will be diffused and spread uniformly
on the surface of the contactor to be combusted, thereby to
maintain very low arc voltage. When the current reaches zero
naturally, residual ions, electronics and metallic vapor will be
compounded or condensed on the contactor surface and
shield cover within microseconds to extinct the arc; insulation
strength of the medium at the interrupter fracture will be
restored fast to realize breaking. The vacuum circuit breaker uses
longitudinal magnetic field to control the vacuum arc, so it has
powerful and strong ability for breaking current.
Staticc ontactor
Ceramicpackage
Metalbell ows
Shieldcover
Dynamiccontactor
A Current and magnetic field B Internal structure C Conditions at the arc
Action
a) Mr hargig prai
Connect the control loop of the breaker; power on and the
motor will start running. When the discharged and charged
indicationchanges from "discharged" to "charged", the motor
stops. Then the closing spring is charged.
b) Maual hargig praiTake the baffle of the handle inserting hole and insert the
manual charging handle (about 280mm, accessory) to the
inserting hole; shake the charging handle several times (about
seven times) and it will snap and become charged. Note) Times
of action of the operating handle will change along with the
change of action angles.
After the device is charged, the breaker will close as long as it
receives the closing instruction at any time.
Insertingholeof
charginghandle
Figure 3 Manual Operation Drawing
) clig prai
After the device closing spring is charged, such state will be kept
due to the pressure of the wedge. Gusset of the wedge tends
to move in the direction of tripping under the driving force of
the cam roller. Now rotate the closing half shaft clockwise to the
release position (about 20) and the gusset of wedge that keeps
the charging state will run fast clockwise; the charging state will
terminate, and closing spring releases energy fast and drives
the cam to rotate anticlockwise. Meanwhile, the linkage gear
will run to the closing position as driven by the cam to close the
device. Then the travel switch will reset; the motor powers on
and drives the closing spring to charge again, so that the device
is closed and charged.
d) trippig prai
The closed state of device is kept by the gusset and half shaft
of linkage gear. The gusset tends to move along the release
direction under the load of breaker; at such time if the tripping
half shaft is rotated to the release position anticlockwise
(about 20), the gusset will run fast anticlockwise, and thus the
balanced state of linkage gear will be terminated. It will move to
the tripping positin under load and the device is open.
) Ai pifai
Ai rl lp
Closing actionAfter the closing spring finishes charging, if the breaker is in
open status and meets the requirements for closing of the
breaker, its control loop is shown in figure 4.3. Under such
circumstances, if the closing instruction is given out (impose
pressure on +HM-N1 point), the breaker will close when the
closing coil CC excites (about 40ms). When the breaker closes,
the auxiliary switches b5 and b6 switch and closing coil CC
terminates excitation. Then the stabilizer Y excites and forms the
protective circuit of closing and tripping circuit.
Warning
Do not operate the breaker when the panel
is discharged, in case there are damages and
accidents.
DangerousPlease keep off, for fear of casualties due to
electric shock.
Charging action
When the breaker closes, the limit switch LS1 -LS2 closes at the
same time; the control relay X excites and starts the charging
function. After the control relay excites, the charging circuit is
switched on; the current motor M rotates and drives the spring
to charge; after the spring finishes charging (about 4s), the limit
switch LS1-LS2 breaks, and control relay X terminates excitation.
Tripping action
Only a1, a2 and TC are related to breaker tripping; when
conditions allow, if the tripping instruction is given out (impose
pressure on +FM-N2 point), the breaker will open when the
trip coil excites (about 25ms). When the breaker opens, auxiliary
switches a1 and a2 switch and trip coil TC terminates excitation.
Note: refer to the device wiring diagram for the contact points
Action o control loop
1. When the limi t switch LS closes, the closing spring begins charging
2. When the limi t switch LS opens, the closing spring finishes charging
3. Closing instruction
4. The closing action begins (the trip spring begins charging)
5. Tripping instruction
6. Tripping action begins
7. Breaker closes
8. Breaker opens
-
7/30/2019 Vol. 12-High & Low Voltage Switch
26/49
8 49
Prdutcategry
High & Lw Vlag swih
thial paramr
1. Primary plug ; 2. Vacuum interrupter ; 3. Handle ; 4. Counter, charging, closing and tripping indication ; 5. Earthing interlock handle
6. Inserting hole of charging handle ; 7. Emergent trip button ; 8. Inserting mouth of crank handle ; 9. Closing and trip button ; 10. Specification
n. Im Ui Paramr valu
1 Rated voltage
kV
40.5
2 R at ed i ns ul at io n le ve l1min power frequency withstand voltage (effective value) 95
Lightning impulse withstand voltage (peak value) 185
3 Rated frequency Hz 50
4 Rated current A 630 1250 1600 2000
5 4s rated short time withstand current
kA
25, 31.5
6 Rated peak withstand current 63, 80
7 Rated short-circuit breaking current 25, 31.5
8 Rated short-circuit making current 63, 80
9 Rated operating sequence O-0.3s-CO-180s-CO
10 Breaking time ms 60
11 Breaking times of rated short-circuit breaking current time(s) 20
12 Breaking current of single capacitor bank A
630
13 Breaking current of back to back capacitor bank 400
14 Rated operating voltage V AC110/220, DC 110/220
15 Mechanical endurance time(s) 10000
Mhaial aur paramr
thial paramr r hargig mr rl mhaim
n. Im Ui Paramr valu
1 Contactor torque mm 21 1
2 Contactor overtravelmm
4 0.5
3 All owable abrasion thickness of overtrave l contactor 3
4 Average closing speedm/s
0.8~1.2
5 Average trip speed 1.2~17
6 Making time
ms
35-65
7 Trip time 15~22
8 Contactor closing bounce time ^5
9 C lo si ng a sy nc hr on iz at io n o f t hr ee -p ha se c on ta ct or 2
1 0 T ri p a sy nch ro ni za ti on o f t hr ee -p ha se c on ta ct or 2
11 Cushion stroke of buffer mm 71
12 Loop resistance of a ll phases (excl ud ing contact arm) 40
Rad vlag (V) Rad upu pwr (W) nrmal wrkig vlag
DC110/AC110 DC220/AC220 70 85%~110% Rated voltage
thial paramr r lig ad rip il
Rad wrkig vlag (V) DC110 DC220
cil hmi valu a 20c () 27.7 10% 126 10%
cil ur 1700 3880
Rad praig urr (A) 4 2
nrmal wrkig vlag rag Reliable tripping at 65%-120% rated working voltage; no tripping lower than 30% rated working voltage
Li ari
n. nam U
1 Manual charging handle For manual charging of breaker
2 Rocking handle of breaker Rocking in and out of breaker
3 Air socket Connection of the secondary loop of breaker
Prdu vrall dimi
-
7/30/2019 Vol. 12-High & Low Voltage Switch
27/49
0 51
Prdutcategry
High & Lw Vlag swih
Wiringdiagramofhedevie
Pakig, rapr, apa hk ad
rag
Packing and transport
VY-40 indoor vacuum circuit breaker is independently packed.
It's fixed to a wooden stand and covered with plastic paper to
prevent penetration of water. During packing and transporting,
the breaker shall be open and the product can't be turned over
or rolled.
Acceptance check upon reception
Check whether the packing is in good condition;
Consult the packing list and check whether the documents,
accessories, and spare parts are complete;
Check whether the technical parameters on the nameplate
of breaker and quality certificate meet the requirements of
ordering.
Storage
The breaker shall be placed in the room that is dry, ventilated,
damp proof, shock-resistant and noxious gas proof. If it's placed
for a long time, spread lubricating oil to the transmission parts
and check whether the environment meets the requirements
regularly.
Weldingpanelof
printedcircuit
1 LX Limit switch LXW18-11 1
2 R4 Resistor RJ-2W-24KQ/6.8KQ 2
3 R3 Resistor RJ-2W-3KD.750Q 1
4 R2 Resistor RJ-2W-12KQ/3KQ 2
5 R1 Resistor R - 2W -1 2
6 RD Fuse BGXP 250V 2A/4A 1
7 C2 Capacitor CL11-600V0.1 m F/400V0.1 [iF 1
8 C1 Capacitor CL11-400V 0.1 M F/200V 0.22 u F 1
9 D1~D5 Diode 1N5407 800V 3A 5
10 FJ Auxiliary relay JQX-13F2 DC110V/48V 1
11 KJ Control relay JQX-13F4DC110V/48V 1
12 FK Auxiliary switch F10-10II/W2 10a10b 113 1WK1~3 Limit switch LXW16-11 DC220V 16A 3
14 HQ, FQClosing and tripelectromagnet
MFH-10 DC220V/110V 2
15 D Charging motor ZYJ55-1A DC220V/110V rev 10r/min torque 24.5NM 1
Iallai ad mmiiig
Inspection beore installation
Afther unpacking, check whether the parts and components
of breaker are complete according to the packing list; check
whether the breaker is wetted and damaged and whether it can
run normally. After the inspection, clean the dust on the surface.
Check the degree of vacuum of the vacuum interrupter using
power frequency withstand voltage method (trip the breaker
and impose power-frequency voltage to the fracture at 95kV/
min). Install the machine after it's qualified in inspection.
Commissioning
Products which are in good condition after unpacking
inspection need no commissioning; only the breakers which
do not meet the technical requirements or whose parts andcomponents are changed need commissioning
First of all, adjust the height of knuckle bearing and oil bumper
at the lower end of the dynamic conducting rod of vacuum
interrupter, so that the vacuum interrupter's contactor torque
can reach the specified value of the specification; Adjust the
nuts on the contactor spring properly so that the contactor
over travel can reach the value specified in the technical
specification; Then check whether all parts of the shaft are
-
7/30/2019 Vol. 12-High & Low Voltage Switch
28/49
2 53
Prdutcategry
High & Lw Vlag swih
correctly connected and whether the oil bumper is normal. Finally, adjust the device so that it can operate normally; make sure there
is be no clamping stagnation in manual operation, electro control, energy storage, closing and tripping. After commissioning of the
entire breaker, it shall comply with the parameters listed in table 2.
ZN85-40.5 Indoor AC High Voltage Vacuum Circuit Breaker
Aahm papr
Quality certificate
Factory inspection report
Checklist of attachment spares, parts and accessories
Packing list
Installation and instruction manual
Other relevant documents
ordrig irui
Type of breaker
Quantity
Rated voltage (kv)
Operating voltage (AC / DC)
Rated current (A)
Accessories
Rated short-circuit breaking current ( kA)
ovrviw
ZN85-40.5 indoor AC high voltage vacuum circuit breaker
is mainly used in three-phase alternating current 50Hz,
40.5kV power system for opening and closing load current,
overload and short-circuit current; it can be used in the places
with frequent operations, and is suitable for the control and
protection in power plants, transformer substations, power
equipment and power lines.
The breaker adopts spring charging control mechanism and
the operational power supply can be DC or AC, which is very
convenient; the product is characterized by good performance,
high reliability, convenience in repair and maintenance, and
long maint