The high voltage part is mounted in the front section of the trailer to provide a relatively spacious inlet space and bigger ground insulation distance.The high voltage switch adopts our in-house developed HGIS,which is an intergration of tank SF6 gas circuit breaker(CB),disconnector switch(DS),earthing switch(ES),fast earthing switch(FES),current transformer(CT)and inlet/outlet bushing(BSG),etc.In addition,the high voltage part is also equipped with independent type potential transformer(PT)and lightening arrestor(LA),etc.
1.(CT)Current Transformer
2.Circuit breaker spring mechanism
3.(CB)Circuit Breaker
4.(DS/ES)(FES)
Three position switch DS/ES(extendible fast earthing switch FES)
5.Three position switch electrical mechanism
6. Incoming and outgoing clamp
7. Composite Bushing
1.(CT)Current Transformer
2. Five position switch electrical mechanism
3.(DS/ES1)Three position switch DS/ES1
4.(CB)Circuit Breaker
5.(DS/ES2)Three position switch DS/ES2
6. Incoming and outgoing clamp
7. Incoming and outgoing bushing
8.Pressure release device
9.Crank box
