Compartments Circuit Breaker Hyosung’s circuit breaker uses superior arc quenching performance and the insulation characteristics of the SF6 gas and adopts the puffer-type, which has a simple operation principle and structure. With the double trip coil, it guarantees reliable circuit breaking and its few parts allow for simple maintenance. Configuration of Circuit Breaker Configuration of Interruptor Disconnecting Switch Disconnecting switch is a device used to segment the charge current section partitioned by the circuit breaker. It is operated by an electric motor; however, it can be manually operated for maintenance tests. In addition, the user can check the switch status since the switch status display is connected to the control shaft in the control box. Assembly of Disconnecting Switch & Earthing Switches for GIS
I 08 09 Gas Insulated Switchgear Earthing Switches The earthing switch is classified into two types according to its role. ① Device earthing: manually and electrically controlled for maintenance ② Line earthing: controlled at high-speed. It has an input capacity even when the line is energized. For preventing any unforeseen accidents, it is interlocked with associated circuit breaker and disconnecting switches. Busbars Most busbars up to 362kV use three-phase batch tank for reducing the number of parts and installation period. The conductors are automatically connected via the tulip contactor when the housing of the busbars is assembled. The expansion or shrinkage of conductors due to temperature changes can be compensated.