The GGD Low Voltage Fixed Complete-set Switchgear Equipment(Abbreviation as Switchgear)is for the purpose of power distribution equipment,lighting,distribution of electrical energy conversion and control which applies to ac50 hz below rated voltage 400 V rated current 4000 A.It applies to circuit of AC50Hz, rated working voltage 400V and rated working Current upto 4000A for power generation plant, substation, industrial and mining enterprises, civil infrastructure and other fields.