... four types a,b,c,d to meet the usage of power receiving,Inter-connection, feeding,inter-coupled and direct control ... duty in power substation.Technical Data TypeBGP9L- /3.3GBGP9L- /6GPBG- /10Rated Current(A)50,75,100,150,200,300,400, ... 500,63050,75,100,150,200,300,400,500,63050,75,100, ... 150,200,300,400,500,630Rated Voltage(KV)3 ...