... short as switchgear)is a complete power distribution device for 3.6~24kV,3-phase AC 50Hz,single-bus ... starting of large high-voltage motor, etc.,so as to control, protect and monitor the system. The switchgear meets IEC298,GB3906- ... No frequent violent shake Main technical specificationsNoItemUnitParameter1Rated voltagekV7.2kV, 12 kV,17.5kV,24kV2Rated frequencyHz50/603Rated currentA630,1250,1600,2000 ...