Circuit b using relay normally closed contact shunt trip coil method b
Source: InternetPublisher:两手空空 Keywords: coil relay contact Updated: 2020/01/21
2) The circuit using the relay normally closed contact shunt trip coil method is shown in Figure 6-63. Figure 6-63 (a) is the wiring diagram, and Figure 6-63
rb) is the expanded view.
In the picture, TA. , TAw are U-phase and W-phase current transformers, KIl and
<Iz are current relays , YRi and YRz are circuit breaker overcurrent releases respectively.
They are installed in the CS2 operating mechanism.
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