HMGS Cubical type Gas-insulated Switchgear is an integrated assembly of vacuum circuit breaker, 3-position switch, Bus Connecting system andcontrol devices coordinated electrically and mechanically, for medium voltage power system.
The Metal-Clad design provides High reliability,Economy, User-Friendly operation and Safety.
The switchgear is isolated by grounded metalplates ,so no live parts are exposed to operatorwhen door open.
Compact design with three-phase enclosure allows very simple and construction.In addition, the switching section may be dismantled or added
in a very short time without the busbar being disconnected.
The Switchgear is available at rated voltage up to 40.5kV installed indoor.
Feature :
All live parts are enclosed by hermetically sealed.
The circuit breaker compartment and busbar compartment are completely enclosed by welded stainless steel (SUS 304L) switchgear container which has separated compartments.
VI are horizontally or vertically installed in the circuit breaker compartment.
The 3-position switch in the bus compartment prepares three condi t ions as : cur rent interrupted condition ("Disconnection"), current alive condition ("Connection") and earthing condition ("Earth").
All operating mechanisms are fitted outside of the gas compartment.