0 emt co., ltd€¦ · 1 contact joo hyun han, tel.82.31.491.8488, m.p 010.5286.3322 emt co., ltd...
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EMT CO., LTD 0 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
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EMT CO., LTD 1 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Company History
Apr. 1965 : Founded by the name of Shin-A Electronic Enterprise at Jangsa-dong, Seoul and started manufacturing various switches,
breakers and protective devices. Dec. 1970 : Changed the name of the company to Shin-A Electronic IND. Co., Ltd. Jan. 1976 : Signed technical license agreement with Togami Electric Manufacturing Co., Ltd. Japan for manufacturing Automatic oil
breaker with pole grounding and protection against overload.
Sep. 1980 : Factory moved to Banwol Industrial Complex in Ansan City. May. 1982 : Signed technical license agreement with Otowa Electric Co., Ltd. Japan for manufacturing Lightning Arrester for 18kV
and 9kV. Aug. 1983 : Nominated as promising of modernization of small & medium enterprises by Small & Medium Enterprises Promotion
Corporation. Feb. 1984 : Approved plan for implementation of modernization of small & medium enterprises by Small & Medium Enterprises
Promotion Corporation. Dec. 1984 : Acquired patent right of Auto Section Switch for 25.8kV distribution line from Government. Aug. 1985 : Signed technical license agreement with Togami Electric Manufacturing Co., Ltd. Japan for manufacturing SF6 gas load
break switch. Feb. 1986 : Acquired patent right of Arc chamber mechanism of Air Break Switch. Dec. 1989 : Signed technical license agreement with Osaka Fuse Co., Ltd. Japan for manufacturing low voltage fuse. Jul. 1990 : Acquired patent right of Pressure sensor mechanism of SF6 gas load break switch. Jul. 1990 : Acquired patent right of Driving arm mechanism of SF6 gas load break switch. Apr. 1991 : Signed technical license agreement with ABB Company, USA for manufacturing Self-diagnostics automatic circuit
breaker. May. 1992 : Signed technical license agreement with Otowa Electric Co., Ltd. Japan for manufacturing Surge Shelter. Nov. 1993 : Signed technical license agreement with G&W electronic Company, USA for manufacturing Gas insulation load switch
for ground. Aug. 1993 : Signed technical license agreement with Raychem GmbH, USA for manufacturing 21kV and 10kV polymeric Lightning
Arresters. Jun. 1995 : ISO 9001 certified by Det Norske Veritas, Netherlands. Jul. 1996 : Signed technical transfer agreement with Feuchtwanger Industries(1994)Ltd. in Israel for SF6 load break switch.(GSS-M)
May 2000 : Changed the name of EMT Co., Ltd. ( All Technology & Manufacturing Facilities are occupied from “SHIN-A Co.,Ltd.”
May 2006 : Development of AMR ( Automatic Meter Reading ) System based on PLC Technology by R&D Project of Government
Dec. 2009 : Development of SCADA system
Nov. 2014 : Development of SFI system
Award Record
Aug. 1972 : Won a prize as an excellent company in the field of science and technology (from the president of Korea) Sep. 1981 : Won a prize as an exemplary company of cooperation between labor and management (from the Minister of Ministry of
Labor Affairs) Apr. 1983 : Won a prize of bronze tower for industrial merits (from the president of Korea) Aug. 1984 : Won a prize of silver tower for industrial merits (from the president of Korea) Nov. 1985 : Won a prize of silver tower of merits as a distinguished service company in the science and technology field (from the
Minister of Ministry of science and technology) Jul. 1986 : Won a prize as a distinguished service company of an industrial disaster-prevention (from the president of Korea) Apr. 1989 : Won a prize as a distinguished service company in the electric field (from the president of Korea) Apr. 1992 : Won a medal of merits as a distinguished service company in the field of electric and electronic industry (from the
president of Korea) Sep. 1992 : Won a prize of golden tower as a distinguished service company an industrial disaster-prevention (from the Minister of
Ministry of Labor Affairs) Apr. 1995 : Won a prize of tower of merits as a most distinguished service company in the electric industrial promoting competition
(from Korea Electrical Manufacturing Association) Jan. 1997 : Named as the top-ranked company of cooperation between labor and management (from the Minister of Ministry of
Labor Affairs) Oct. 1999 : Won a golden prize for Labor Union (from the Minister of Ministry of Labor Affairs)
Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
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EMT CO., LTD 2 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Minimize Power Loss Solution
Minimize SAIDI, SAIFI Solution
Maximize Effect as Economical Investment
Power Loss Analysis System Real Time Detecting & Down Load for All Metering Data Real Time Calculation of Power Loss Abnormal usage Event Message to Registered Mobile Phone (Option)
AMR system with Mechanical Meter, Electronic Meter AMR system with Mechanical, Electronic, Semi-Electronic Meter Real Time Calculation of Power Loss with AMR Abnormal usage Event Message to Registered Mobile Phone (Option) Retrofit Existing Mechanical Meter for AMR system
High Voltage Customer AMR system
New Distribution Scheme with Re.FAI All in One Function for LBS / SECTIONALIZER / RECLOSER by Re.FAI Phase / Ground Fault / *SEF Relay / Reclosing Protective Relay Included Smart Function application as Low Cost ( Option ) Re. FAI trip & Close > Real Time SMS event Message Sending to Registered Mobile Remotely ON/OFF control by Mobile Phone 3e. DAS (SCADA) system operation ( Protocol : DNP 3.0, IEC 101, ERTU-09A1 )
Smart Fault Indicator System Fault Current Passage Indication [SFI, SFI(1), SFI (2)] Transient fault, Permanent Fault Different Indication Real time Monitoring Fault Trigger Signal by Registered Mobile Phone [SFI(1) Model] 3e. DAS (SCADA) system Operation [SFI (2) Model ] Protocol : DNP 3.0, IEC 101, ERTU-09A1
TMS ( Smart Transformer Management System) Over Load (* Temperature) Event Monitoring by Mobile Phone Current, Temperature Remotely Monitoring by SCADA system
Smart CVT ( Current Voltage Combined Transformer ) High Voltage Customer Smart Metering Device
Phasing Tracer Phase Balance Management for Checking Phase Customer Connection
Renovate Existing Distribution System
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EMT CO., LTD 3 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
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EMT CO., LTD 4 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
RF Modem Communication
Secondary Main Meter & DCU
Local Area Networks
(AMI connect using networks for the future)
PLC Communication
Consumer 1 Consumer 2 Consumer 3
Specific Applicable Functions with Hybrid-AMI system
v Power Theft warning by mobile phone
v Real Time Power Loss Calculation
v Real Time Meter Reading for Each transformer by Lap Top Computer
v Reuse Existing Meter for H-AMI System
Power Loss Warning System
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EMT CO., LTD 5 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
• Mechanical Meter ( with Pulse Sensor ) • Digital Pulse Meter ( Register Type ) • Digital Pulse Meter ( LCD Type) )
Kwh Meter & Pulse Sensor
• PLC Modem integrated in Pulse meter • Separately Installed Modem , Pulse Input • Program ID, Channel no., Pulse Constant • Widow value
PLC Modem / Handheld Prog.
• Metering Data Collecting and Memory • PLC modem, RF modem Integrated • Data Sending to Upstream System
DCU & CCU
• Metering Data Download • Power Loss Analysis • Automatic Meter Reading
Laptop Computer & Software
Calculation Power Loss, or KW
L (%) = (Ts – T0) / Ts x 100
D C U Ts, T0 = ∑ (Tr1 ~ Trn)
L , or P ? ≥ L, P
Smart DEVICE
Ts : Secondary Main Meter ( KW, KWH )
GSM
Network SMS Message to Mobile Phone in case of
abnormal usage (Option)
All customer Kwh Reading Data Tr1 ~ Trn Data
Download All metering Data & Power Loss
by Lap Top Computer from DCU
Any Type Meter Applicable
System Devices & Configuration
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EMT CO., LTD 6 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
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EMT CO., LTD 7 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
15/24/35kV
i. LBS (intelligent Load Break Switch)
( Mobile Phone Control / SCADA control )
EMT CO., LTD. TEL +82 31 491 8488 FAX +82 31 491 8428
emthan@hanmail.net
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EMT CO., LTD 8 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Description unit FAI-1 FAI-2 FAI-3
Rated Maximum Voltage Kv rms 15 27 38
Rated Current A rms 400/630 400/630 400/630
Rated Frequency Hz 50/60 50/60 50/60
Short Circuit Interrupting KA 1000A 4.0/12.5KA
1000A 4.0/12.5KA
1000A 4.0/12.5KA
Power frequency withstand voltage
Dry KV 50 60 70
Wet KV 45 50 60
Impulse withstand voltage
KV 110 150 170
Mechanical Endurance times 5000 (*10,000)
5000 (*10,000)
5000 (*10,000)
FAI Trip & Reclosing Lock Out
GSM
Network
Event report immediately
To registered Mobile Phone
[ How to Program Reclosing Sequence ]
Setting of Current & Time as follow step
Reclosing Count on Fault ( Lock Fault ) : Programmable 0 ~ 5 ( Default : 3)
Reclosing Time Interval on Phase & Ground Fault : Programmable 1~240 sec. on each count
Closing Relay ON time : Programmable 0.1 ~ 9.9 sec.
Reclosing Sequence on Lock Fault Trip (Programmed)
Integrated IDMT curve
Application with SCADA system
Specification
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EMT CO., LTD 9 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Smart Fault Indicator System
( Model : SFI(G),SFI(1),SFI(2), SFI (12) )
EMT CO., LTD. TEL +82 31 491 8488 FAX +82 31 491 8428
emthan@hanmail.net
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EMT CO., LTD 10 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Smart FI Specification
Rating Voltage : 3 ~ 75 KV
Rating current : up to 1000 A
Rating Frequency : 50 / 60 Hz
Fault Detection : Phase to Phase Fault, and Phase to Earth Fault
Fault current pick up ; Automatic set of Fault Triggering Pick up Current
Inrush Restrain Our specific Algorithm integrated
Different Flashing Indication between Transient Fault and Permanent Fault
White Led Flashing ( Transient Fault )
Red Led Flashing ( Permanent Fault )
White Led short Interval Flashing for Reclosing Progressing
Flashing Indication Signal time ; ½, 1, 2, 4, 8,(16) hour
Automatic Reset Function & Manual reset Function
Indication Test function for Transient Fault , Permanent fault, Reset Indication
Low Battery Indication : Green Led Indication
Self power Charging Device integrated : DC 3.7 V
SFI (1) Model : Remotely Monitoring of Fault Trigger Signal
by Mobile Phone in GSM network ( RF, CDMA network )
SFI (2) Model : Remotely Monitoring of Load Current, & Fault Trigger Signal
Operation in SCADA System with RF, GSM, GPRS,(Fiber optic) network
Communication protocol : DNP 3.0, IEC 101, 104, Mod bus , others
Live Line Mounting and Dismounting on Hot Line by hot stick
FI trigger SMS Message Receive ( Example )
Up to 5 Registered Mobile Phone can receive FI Trigger message
Smart Fault Indicator Specification
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EMT CO., LTD 11 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Patent Number : 10-2016-0070825
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EMT CO., LTD 12 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
STMS & SVMS System
* Smart Transformer Monitoring System
* Smart High, Low Voltage Monitoring
EMT CO., LTD. TEL +82 31 491 8488 FAX +82 31 491 8428
emthan@hanmail.net
Transformer Monitoring
*V,I,P,Q, Kwh, Kvarh, P.F.
Single phase
(Voltage Monitoring)
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EMT CO., LTD 13 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
SF6 Gas Load Break Switch (Manual Type)
EMT’s GSS, which is operated electrically through remote controller and manually, is used for load breaking of overhead distribution lines. This is very compact owing to the introduction of simple extinguishing mechanism ensured by the high insulation and superior interrupting characteristics of SF6 Gas. EMT’s GSS has been tested by IEC60265-1, ANSI37.41, KSC4509, JIS C4304 and has acquired the ISO-9001 as International quality system certification.
SF6 Gas Load Break Switch (Remote Controlled Type)
•Rated voltage : 15/25/36 kV •Rated frequency : 50/60Hz •Rated current : 200/400 /600 A •Rated short-time current : 12.5kA •Rated making current : 32.5kA •Impulse withstand voltage(BIL) : 110/150/170kV
EMT’s AGSS can be manually operated and remotely controlled with SCADA system. 3 CT for Current sensing are integrated and fault current detecting system is available with fault indicator. .Also, Voltage sensor shall be available to install for voltage indication. If our RTU is connected to controller, then AGSS is Ready for SCADA system in GSM/CDMA/GPRS network. Tested by IEC60265-1 specification.
•Rated voltage : 15/25/36 kV •Rated frequency : 50/60Hz •Rated current : 400/ 630A •Rated short-time current : 12.5kA •Rated making current : 32.5kA
EMT’s SF6 Gas Pad Mounted Type Load Break Switch is installed for underground cable system. There are manual type & Remotely controlled type with SCADA system as 3 way 3 switch, 4 way 4 switch. Pad Mounted Type LBS shall be applicable for RMU (Ring Main Unit).
FEATURES ㆍTotally sealed and dead-front enclosure construction. ㆍSimple and easy operation using by operation handle or hook stick.
•Rated voltage : 15/25/36 kV •Rated frequency : 50/60Hz •Rated current : 200/400 /600 A •Rated short-time current : 12.5kA •Rated making current : 32.5kA •Impulse withstand voltage(BIL) : 110/150/170kV
SF6 Gas Pad Mounted Type Load Break Switch (Underground System)
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EMT CO., LTD 14 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Automatic Recloser
•Rated voltage : 15kV, 25kV, 36kV •Rated frequency : 50/60Hz •Rated current : 400A/630/*1250 A •Rated Interrupting Current : 12.5 KA /*20 kA •Impulse withstand voltage(BIL) : 110/150/170 kV
Automatic Line Sectionalizer
•Rated voltage : 15kV/25kV/36kV •Rated frequency : 50/60Hz •Rated current : 400A /630A •Rated short-time current : 12.5 kA •Impulse withstand voltage(BIL) : 110/150/170 kV •Rated interrupting current : 900A
FEATURES ㆍ Phase fault/ Ground Fault/Sensitive Fault counting level can be set ㆍ Automatic trip in setting count in coordination with recloser / Circuit Breaker ㆍ Prevent Fault Count for Inrush Current with Inrush current restrained function ㆍ Applicable Standards ANSI C37.63
Air Type Load Break Switch ( Available for Smart Grid )
•Rated voltage : 15/25/36 kV •Rated frequency : 50/60Hz •Rated current : 400/ 630A •Rated short-time current : 25 kA •Impulse withstand voltage(BIL) : 110/150/180 kV •Operation : Manually / Motorizing Operation
•Available for SCADA System, Smart Grid
* Retrofitable for Existing Manual Type
FEATURES ㆍEconomical Load Break Switch ㆍCompact Air Type Arc Chamber ㆍArc Chamber can be fixed on Movable Contactor, or Fixed Contactor ㆍManual operation, or Motorizing Operation (Optional) * Available for SCADA system ㆍRetrofitable SCADA System for existing Manual Type LBS
EMT’s Pole Top Auto-Recloser is installed for Automatic tripping as equipped Time – Current Curve with SF6 Gas type, or Polymer Type. Auto Recloser shall be able to automatically trip on Overload/Phase Fault /Ground Fault. Auto Recloser can automatically reclose as Reclosing controller of programmed reclosing sequence to minimize SAIDI, SAIFI.
ㆍ Automatic Fault Trip as Circuit Breaker with T.C Curve ㆍ Automatic Reclosing as Programmed sequence ㆍ Available of SCADA system with RTU (or, Integrated RTU)
FEATURES
Patent Number : 10-2016 -0070825
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EMT CO., LTD 15 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
SCADA System(Supervisory Control and Data Acquisition)
AMR(Automatic Meter Reading) System
RTU( Remote Terminal Unit )
ㆍ Very Compact and Simple applicable for LBS/SECTIONALIZER/RECLOSER/CB ㆍ Remotely ON/OFF Operation for Two Switches ㆍ Monitoring DATA of Current (Voltage) value ㆍ Status of LBS/SECTIONALIZER/RECLOSER ㆍ RS232 Connection / pulse Mode Switching ㆍ DNP 3.0 protocol
FEATURES
EMT’S Automatic Meter Reading(AMR) System is consisting of a Host Central Station(HCS), Data Concentrator Units (DCU) and Meter Interfacing Units (MIU) built-in, or External in Electronic Digital Meter/Mechanical Meter/Electronic, Mechanical Meters of flexibility and expandability based on PLC (Low Voltage Power Line Communication Technology) for Low Voltage Customers Downstream Communication of DCU is PLC technology, upstream communication of DCU(MDCU) is RF/GSM/GPRS/CDMA/Internet network. For Low voltage customer AMR system. For High Voltage Customer AMR system, GSM/GPRS/CDMA network shall be adapted.
• Power loss Analysis System & Remote Switching (Optional)
EMT AMR system shall be able to apply for the Existing Mechanical Meter with Internal PULSE GENERATOR, or External PULSE GENERATOR. Also, Electronic Meter with Pulse Out.
• Economical and Flexible Application
EMT AMR system shall be able to provide analysis data of power loss based on each distribution transformer as AMR system operation software. Energy cheating detecting system shall be applicable with AMR system.
EMT’S SCADA (supervisory control and data acquisition) system is useful with our RTU, or integrated RTU controller for Remotely control and monitoring Current, Voltage, Status of LBS/RECLOSER /SECTIONALIZER etc. by RF/GSM/CDMA/INTERNET communication network.
FEATURES ㆍ Remotely ON / OFF operation ㆍ Monitoring of Current, Voltage on distribution line ㆍ Monitoring status of LBS/RECLOSER/SECTIONALIZER/CB # Status : Trip event/Fault report/Gas Low / Door open / Battery Low etc. # Communication Network : RF/GSM/GPRS/CDMA/INTERNET etc.
• EMT RTU can be easily adaptable with any LBS/SECTIONALIZER/RECLOZER/CB Controller for SCADA system • Applicable for RF/GSM/GPRS/CDMA communication network. • Our own Protocol with our operating software, or DNP 3.0 protocol
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EMT CO., LTD 16 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Cut Out Switch (Drop Out Type)
•Rated voltage nominal : 15/25/36 kV •Rated frequency : 50/60Hz •Rated continuous current : 100A •Rated interrupting current : 12.5 kA
EMT’s Cutout Switch is a safe device installed to primary side transformer for protection of the transformer and customer’s facilities from secondary short-circuit fault of transformer and overload and a outdoor cross-arm mounting, live working, hook-stick operated with load-buster, open type with drop out fuse holder. EMT Cutout Switch has been tested and meet all
requirements of IEC, ANSI and NEMA.
Portable SF6 Gas Load Break Switch
•Rated voltage : 15/25 KV •Rated frequency : 50/60Hz •Rated current continuous : 200A, 400A •Rated short-time current : 12.5KA •Rated making current : 25KA
EMT’s portable type SF6 Gas Load Break Switch is useful for Temporary Cabling work and non power outage work . FEATURES ㆍLive line indication ㆍPhasing indication ㆍSafety lock by manual operation ㆍLoose phasing indication ㆍInternal arching safety device
ㆍOperation counter ㆍGas pressure gauge ㆍInternal and outsource charging ㆍSafety lock for low pressure(Automatically) ㆍLive line indication in case of battery voltage out
FEATURES ㆍPorcelain Insulator / Silicone Composite Insulator Available ㆍStainless Steel / Zinc Iron Coated Steel Mounting Bracket
SFI (Smart Fault Indicator)
•Rated voltage : 12kV ~ 36kV •Rated current : 5A ~ 630A
•Fault Current Pick Up Tap : 50, 100, 200, 300A •Set Operating Signal Time : 30min, 1 hour, 2 hour, 4hour •Self Power Charging : DC 12V
FEATURES
ᆞ Detecting of over current fault sensing (Detecting time : 20~25 ms) ᆞ Settable Time for make audible & Visible signal even for instantaneous Fault ᆞ Settable current to pick up fault current ᆞ Self power rechargeable device from load current. ᆞ Remote monitoring of fault indicator signal ( RF, GSM Network )
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EMT CO., LTD 17 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Fault Automatic Isolator
•Rated voltage : Single Phase 12~24 KV •Rated frequency : 50/60Hz •Insulation : SF6 Gas (200A/400A), Polymer (630A) •Rated short-time current : 12.5KA •Rated making current : 25KA
• Control Voltage : DC 24V
• Spring Charged Mechanism : Magnetic Actuator; Optional
FAI Function ㆍ Automatic Fault Recloser / Circuit Breaker with T.C Curve in Fault current Break Capability ㆍ Automatic Sectionalizer coordinated with Recloser (or, Circuit Breaker) on beyond of Fault Breaking Current Capability. ㆍ Load Break Switch / Fault Indicator operated automatically (or, manually)
FEATURES ㆍ Applicable standards : IEC 60265-1, ANSI 37.63
Surge Arrester Hot Line Tester
Ultra Sonic Detector
•Connector : For Cable type, or Rod type measurement •Range Selector : 1mA : 0.1~0.99[mA] / 10mA: 1~10[mA] •RS232 Connector : Memory data back up by PC maximum 100ea data • DC power jack : Battery Charging by Adaptor •Power Switch : ON / OFF / Charging
FEATURES ㆍ Analyzing of deterioration Surge Arrester to change before Failure of Lightening Surge Arrester ㆍ Simple Measurement of Leakage Current Surge Arrester ㆍ Possible of Local Printing & Download Data Logging through RS232C communication port ㆍ Measurement on Live line by Hot stick ㆍ Logging of Ambient Temperature in Measurement ㆍ Memory of Maximum 100 ea Data ㆍ Portable and Light Weight ㆍ Easy Change of Battery
EMC 1201 Corona Detector (ECD) is a self contained instrument for detecting of locating partial discharge sites in exposed, but inaccessible sections of high voltage electrical facilities. The instrument has been developed , and designed to enable detecting faults or defects in Facilities to be identified at an early stage, thus allowing remedial work to be undertaken before costly breakdowns may occur.
• Detecting Circuit Voltage : No Limit (~1500)kV • Sensitivity : Variable 8dB ~ 24dB • Detecting Frequency : 23 (or 40)kHz • Dimension : 325 X 240mm • Weight : 1.6kg
• Detecting Range : Up to 75m
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EMT CO., LTD 18 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
Porcelain Type Lightning Arresters
Type BV7A BV-9A BV-18A GL-15 GL-18
Rated Voltage(KV) 7.5 9 18 15 18
Max.Impulse spark over v
oltage (KV Crest) Standard 1.2 x 50㎲ 27 32.5 65 95 125
Front of wave 31 38 75
Discharge voltage at 2.5KV(KA Crest) 27 32.5 65 54 65
Standards
IEC 99-1, ESB 153 ANSI / IEEE C 62.11
ESB 153
EMT offers a line of porcelain distribution Surge Arrestors with SIC varistors(Gap Type) and Zinc-oxide varistors(Gapless Type), for protection of distribution line system. FEATURES ㆍHigh reliability and excellent durability ㆍHigh dielectric strength due to posses the wet process porcelain housing ㆍExcellent non corrosion due to complete stainless steel sealing cap ㆍEconomic price with easily portable due to compact size
Polymer Type Lightning Arresters
Type
Rated Voltage(KV)
Nominal Disc
harge Current
(KA)
Residual Voltage
(KV) Lightning Impulse
Withstand Voltage
(KV, Crest)
Power Frequency
Withstand Voltage
(KV, Crest) 5KA 10KA SHDA-18 18 5 10 54 60 150 70 SSPA-18 18 5 10 54 60 150 70 SHDA-21 21 5 10 64 69 150 70 SSPA-21 21 5 10 64 69 150 70 SHDA-24 24 5 10 72 80 150 70 SSPA-24 24 5 10 72 80 150 70
FEATURES ㆍEMT’s Polymer Arrester is the design avoid free air space which eliminates the possibility of failures due to moisture ingress. ㆍOut-door type polymer arresters prevent the power lines from fault due to the lightning and line switching. ㆍEspecially out-door type in heavy polluted area provide excellent protection for equipments. ㆍIn-door type polymer arresters for the switchgear protection are installed in a MGSG and a cubicle.
High Voltage Air Break Switch (KST Type)
•Rated voltage nominal : 7.2KV •Rated frequency : 50/60Hz •Rated current : 200A, 300A, 400A
EMT’s High Voltage Air Break Switch is a manually operating switch. Air type Load Break Switch is supplied to Rail Way company.. Main technology is from JAPAN TOGAMI Electric Manf. Co. Ltd.
FEATURES ㆍOIL. SF6 Gas Free / Air Type Load Break Switch (Fully enclosed Type) . Applicable standards KSC4510, JISc4605
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EMT CO., LTD 19 Contact JOO HYUN HAN, Tel.82.31.491.8488, M.p 010.5286.3322 emthan@hanmail.net , emt.co.ltd.korea@gmail.com
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