가보로고 회사소개 사업소개 제품소개 고객지원 커뮤니티 홈 사이트맵 contact us 영문사이트
전력사업분야 시스템사업분야
탑이미지
송전선로보호반
변압기보호반
모선보호반
차단기동작실패보호반
발전기보호반
고장기록장치반
MINI RTU PANEL
GIS_Local CONTROL PANEL
BAY CONTROL PANEL
고장파급방지장치반
Sh.C BANK 보호반
Followed from a development of the industry, power consumption has been increased and led a large capacity and extra-high voltage of power systems. Thus stability and credibility of electric power facility is very important issue. Due to difficulty in procurement of an industrial site for power generation plants, excessive amount of expenditure in maintenance, safety issue, trends in making extra-high voltage electric power facility has been changed. Main circuit system for power supply has been concealed and enclosed while a control system has been changed to a electronic digital type. Also in issue regard to insulation, previous air or oil insulated substation facility has been changed to a gas insulated substation facility.
 
GIS (Gas Insulated Switchgear) GIS is concealed facility that has switching facility such as circuit breakers, disconnection switch and transformers, arresters and busbar etc, in metal tanks. Its charging part is supported by a Spacer. And an inside of tank is filled with SF6gaswhichhasexcellentinsulating andarc-suppressingperformance.
   
  GIS SYSTEM CONFIGURATION
 
1. Circuit Breaker
A type of switchgear, it could open and close not only a normal load operation but also a faulty system. Moreover, a circuit breaker could open both normal load current, and fault current.
2. Disconnection switch
It is a switchgear device used when circuit transition, sectionalizing, disconnecting no-load devices from circuits. Therefore it always performs its operation in no-load status.
3. Earthing Switchgear
Earthing on GIS is impossible since it is concealed by metals. Thus earthing switchgear is installed for earthing circuits after an outage.
4. Local Control Panel
It is an installed panel for control/monitor of GIS’main devices such as circuit breakers, disconnection switches, and earthing switchgear. Also it includes an interlock circuit for prevention of disoperation when controlling those devices.
   
  LCP MAIN FUNCTIONS
 
1. Control of switchgear (Circuit breaker, disconnection switch, earthing switch)
2. Monitoring status of switchgear and its damping gas, etc.
3. Interlock circuit for prevention of disoperation.
4. Interface between protection panel and GIS main devices.
   
  WHAT IS AN INTERLOCK?
 
It is a circuit for a protection of facilities and a safety of operator. By using a contact for device status, it checks and locks activation of facilities related to each other.
  TECHNICAL STANDARD/SPECIFICATION
Index Item Specification remarks
Rating controlled power   DC : 110V or 125V or 220V Selectable
  AC : 120V or 220V
Current   1 or 5A
Voltage   AC63.5V or 66.4V or 110V or Higher
Environment Allowed Tempearture   -25˚ ~ 40˚C Selectable
structure Allowed location   Indoor or Outdoor type Selectable