VD4-12 Spring-operated circuit breaker control, signal circuit（Module operating mechanism）

Master Electrician
10/11/2024 10:53:48

VD4-12 Spring-operated circuit breaker control, signal circuit（Module operating mechanism）

屏幕截图 2024-10-11 112421.jpg

SFA:change-over switch

SFB:change-over button

BB:Thermal relay

BT:Temperature measurement

MS:Energy storage motor

QF:Dc air circuit breaker

QC:Ground switch

WCC:Wire Connection Center

V:Rectifier bridge


The inside of the frame is divided into the inside of the circuit breaker car

Topics Circuit diagram Control circuit Circuit breaker
Master Electrician

We aim to gather electrical knowledge and share it with others.

Secondary control circuit diagram of isolation switch and ground switch in 110kV combined electric

Secondary control circuit diagram of isolation switch and ground switch in 110kV combined electric
Primary main wiring of 110kV single bus segment

Primary main wiring of 110kV single bus segment
The control and signal circuit of the three-out-of-two incoming circuit breaker

The control and signal circuit of the three-out-of-two incoming circuit breaker
VD4-12 Spring-operated circuit breaker control, signal circuit（Traditional operating mechanism）

VD4-12 Spring-operated circuit breaker control, signal circuit（Traditional operating mechanism）