126kV Gas Insulated Switchgear
1. This kind of GIS has good ability of switch-on and switch-off, it can break short circuit current of 50kA without shunt capacitor, the breaker is single fracture and the interrupter room is adopted single voltage, bidirectional and synchronized wind blowing.
2. The ability of witch-off is rather good, the insulation level is very high and the breaker can switch on and off 20 times without maintain.
3. The flow is very good and the breaker does not need any springs and the contactor of spiral spring and silver coating all guarantee the flow and the high conductivity.
4. The insulation pole has good strength and can endure electricity and impulse, the mechanical longevity is 5000times.
5. It has outstanding operation motors, one kind HMB-4 is hydraulic structure made by ABB, the other is made by Hitachi.
6. It has good adoption into zones of low temperature and can be used humid and badly polluted areas.