6~35kV Substation secondary circuit wiring diagram

Substation secondary circuit wiring diagram

note 1:When used for bus Ⅱ power input, QA1 is changed to QA2

note 2:When used for bus Ⅱ power input, change terminals A17,C18 from the busbar integrated protection device to C23,C24

QA:Circuit breaker

TA:Current transformer

FE:Lightning arrester

FU:Fuse

BB:Microcomputer line protection measurement and control device

BG:Travel switch

SFU:Transfer switch