6~35kV Substation secondary circuit wiring diagram
Master Electrician
10/14/2024
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
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