23B1-E-0007

DC 1,500 V，750 V/2,000 to 4,000 A

Fuji Electric DC High-speed Vacuum Circuit Breaker

For Electric Railway Substations

D3039-0965_23B1-E-0007.indd 1 13/06/20 10:14

＋

＋

Detectioncontrol

Opencommand

Overcurrent

Detectioncontrol

Close command

Detectioncontrol

Detectioncontrol

Detectioncontrol

Fuji Electric’s DC high-speed vacuum circuit breakers promise to improve the reliability and safety, and to reduce life cycle costs of electric railway substations.

■ Substation maintenance can be greatly streamlinedWith arcless circuit interruption, dramatic reductions in maintenance can be planned, and other maintenance-saving equipment and maintenance cycles can be synchronized.

■ Space-saving design reduces construction costs and makes renewals easy

Volume is only 50 % of that required by conventional high-speed air circuit breaker panels (when compared with our company's products).

■ Energy-saving featuresLow loss and low energy operation help to save energy. The dry capacitors used are incombustible and eco-friendly.

■ Large current interruption performanceThe high breaking capacity and faster opening time of the vacuum valve have achieved a 100 kA circuit interruption.

■ Total area interruption performanceFrom large to small current, all current can be reliably interrupted.Large load current can also be securely turned on.

■ High operating reliabilityHigh operating reliability is achieved through redundant configuration of critical components, high noise-resistant design, as well as clarification of periodic replacement parts.

■ Ideal for outdoor installationsThis equipment can significantly reduce the size of substation buildings, and is economical.

■ No on-site overhaulsEach unit can be taken back to the factory to be overhauled on an individual unit basis. This makes our quality perfect.

■ Safe and easy handlingThe live part is not exposed, and is equipped with a protective shutter and secure interlock mechanisms.The easy-to-understand functional unit structure makes to prevent human error during operation and inspections.

(1) Overcurrent detectionWhen overcurrent is detected, an opening command is sent to the main vacuum valve.

Current interruption principle

Basic configuration

Device features

(2) OpeningAfter the main vacuum valve is opened, the main osillation switch is turned on.

(3) Main osillation capacitor discharge

Capacitor discharge current is superimposed on the main circuit current, making the current zero.

(4) Main vacuum valve turns offThe current of the main vacuum valve is turned off, the current is diverted to the main osillation circuit, and the voltage between the electrodes increases.

Implementation benefits

(5) Arc suppression device discharges, completing the circuit interruption

The voltage between the electrodes increases and the suppression device operates to complete the interruption and absorb the circuit energy.

Repulsion drive unit

VCB

Detection control unit

Main osillation control unit

MonitoringTrigger

Trigger

Charge Monitoring

ChargeRSw

HCT

External signal(DC 100 V)Analog output for measurement

DC 100 V

RSw

DC 1500 V MRCMVI

TC

NLR

SOL SOC

MOL MOC

FMS

TSw

SVI

MRC

※※

MRC : Magnetic repulsion coilRSw : Repulsion drive switchMOC : Main osillation capacitorMOL : Main osillation reactorSOC : Sub osillation capacitorSOL : Sub osillation reactor

MVI : Main vacuum interrupterSVI : Sub vacuum interrupterFMS : Fast making switchNLR : Non linear resistorHCT : Hall current transfomerTC : Tripping coilTSw : Tripping switch

Inverter(Regular

use)

DC 100 V

AC 210 V(Back-up)

The Key Points in the Innovation of Railway Substation Equipment are Arcless Circuit Interruption and Protecting the Environment!

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Internal structure of device

Device specifications

Circuit breaker main body

Disconnector

Actuator

Fault detection sensor (∆I)

Main osillation control unit

Lightning arrester

Main bus

Circuit breaker body

MOCZ bus

Operation panel

Repulsion drive unit

Relay unit

Power distribution unit

Detection control unit

NLR700

2300

50

2000

HCT

[Unit: mm]

Item DescriptionDevice name DC high speed vacuum circuit breakerApplicable standards JIS E2501-1 (2010) "Railway applications - Fixed installations - DC

switchgear - Part 1: General"JIS E2501-2 (2010) "Railway applications - Fixed installations - DC switchgear - Part 2: DC circuit-breakers"

Structure Indoor-use (outdoor-use) cubicle type switchgear (JEM1425-CW) (draw-out type, main circuit with shutter)

Protection class IP2XCircuit breaker body type HX5001X- Mf-DA( : 20, 30, 40) HX10001X- Mf-DA( : 20, 30, 40)Device type VDC215-P VDC208-P VDC215-T VDC208-TRated voltage DC 1500 V DC 750 V DC 1500 V DC 750 VMaximum arc voltage 4000 V or less 2500 V or less 4000 V or less 2500 V or lessRated breaking capacity 50 kA (at 3×106 A/s) 100 kA (at 10×106 A/s)Maximum cut-off current 25 kA or less 36 kA or lessRated current 2000A/3000A/4000AOperating duty cycle O - 10 sec - CORated short-time withstand current 1 sec, 75 kACurrent detection method Forward overcurrent detection (built-in reverse current relay function) *Setting current scale 4 kA to 12 kA, 2 kA to 6 kA, 1 kA to 3 kAFinal selection rate 50% (Configurable to use or exclude)Operation methods

Closing operation method

Electric-spring method, 1.7 A, 2 sec

Contact opening metho

Electromagnetic repulsion drive system

Commutation method Capacitor commutation methodArc suppression method

Energy absorption method using zinc oxide elements

Guaranteed number of operations

Mechanical opening and closing

10,000 times

Short-circuit current interruption

100 times

Withstand voltage

Main circuit 5500 V AC, 1 min; lightning impulse 20 kVControl circuit 1500 V AC, 1 min; lightning impulse 4.5 kV

Insulation distance Air gap 30 mm, Creepage distance 50 mm or moreRated operation and control voltage DC 100 V, DC 110 VRated auxiliary power voltage Single-phase 210 V ACAuxiliary switches

Contact configuration 3a+3b (External use)Switching capacity 5 A (DC 100 V, DC 110 V)

*: Bi-directional overcurrent detection type can also be manufactured.

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Gate City Ohsaki, East Tower, 11-2, Osaki 1-chome, Shinagawa-ku, Tokyo 141-0032, JapanPhone : (03)5435-7111

Internet address : http://www.fujielectric.co.jpInformation in this catalog is subject to change without notice.

Printed on recycled paper

2013-6(F2013/F2013)YU-H/CTP3FOLS Printed in Japan

54P1

54F1

HCT

△ICT

HCT

△ICT

HCT

△ICT

HCT

△ICT

HCT

△ICT

54F2 54F3 54F4 54FZ

54P2

Comparison of DC circuit breakers

Comparison of installation space [mm]

Single-line diagram

AccessoriesPlease provide the following information when contacting us.1. Rated voltage V2. Rated current A3. Rated breaking capacity kA4. Maximum current scale kA5. Single-line diagram6. Usage conditions

The following accessories are available.■ Standard accessories • Current scale tester (The test is very easy to perform.) • Cable for current scale testing • Special VCB tool■ Options • VCB draw-out rails or inspection platforms • Indicator for monitoring circuit breaker opening and closing

(Maintenance can be planned by monitoring opening and closing times and pre-loaded spring time.)

Your inquiry form

Vacuum circuit breaker panelRatio (our company's products)

Air circuit breaker panelFootprint Volume 16.8 m2 47.0 m3

9.8 m2 22.5 m3

60 % 50 %

2800

2300 28

00

2000 4900

6000

Air circuit breaker panel

Vacuum circuit breaker panel

54P1 54P2 54F1 54F2 54F3 54F4 54FZ

Item of comparison High-speed vacuum circuit breaker High-speed air circuit breakerApplicable standard JIS E2501-1 (2010) "Railway applications - Fixed installations - DC switchgear - Part 1: General"

JIS E2501-2 (2010) "Railway applications - Fixed installations - DC switchgear - Part 2: DC circuit-breakers"Principle of current interruption The opening of the vacuum interruter diverts the current

to the non linear resistor which generates a counter voltage higher than the power supply voltage to turn off the current.When a large current is interrupted, the only sound generated is the sound of the equipment.

Current is transferred to the arc chute by electromagnetic force where it is interrupted when the arc chute generates a counter voltage that is higher than the power supply voltage.Interruption of large current is accompanied by explosive sounds and flashing.

Short-circuit current interruption time 6 ms (Approx.) 20 ms (Approx.)Maintenance and inspection The inspection cycle can be significantly extend

because there is little mechanical wear. Cleaning is not required because of the enclosed structure.

Frequent inspections and mechanical adjustments are required because the contacts and arc chute are subject to wear.

Inspection cycle (user inspection) 3 years 0.5 yearsSafety The protective structure (with shutter) provides a

high level of safety on par with AC circuit breakers. Discharge operation and confirmation of the capacitor are easy to perform.

The live part is exposed, and arcing requires caution.

Current scale range (upper and lower limit ratio) 3 times 2 times or lessMain circuit loss (at 3000 A) * 1 0.6 kW (Approx.) 1 kW (Approx.)Control power input (DC 100 V) *2 0.3 A (Approx.) 1 A (Approx.)Operating current After closing : Spring-loaded current flows.

After opening : In a few seconds the capacitor charging current flows.

On closing: large electromagnetic operating current flows.

* 1: GTO Circuit breaker is approx. 5 kW. * 2: GTO Circuit breaker is approx. 3 A.

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