Whenever there will be a closing pulse exist 94 relay will energise through its aux no contact of cb which comes to nc position as soon as cb closes, thereby it prevents closing pulse to cb closing ckt...
Dear sir, Nowadays circuit breaker manufacturers are telling that anti pumping relay is in-built function of circuit breaker. So no external anti pumping is not required...
Superb explanation
Thank you 🙂
How does the 94 relay deenergize for another circuit breaker closing operation .
Whenever there will be a closing pulse exist 94 relay will energise through its aux no contact of cb which comes to nc position as soon as cb closes, thereby it prevents closing pulse to cb closing ckt...
Sir
In control panel ,there is a indication called trip on fault , what is the purpose ? Please explain
Are u talking about switch on to fault??
Dear sir,
Nowadays circuit breaker manufacturers are telling that anti pumping relay is in-built function of circuit breaker. So no external anti pumping is not required...
Sir
You have to show NO open in.series wirh Trip coil. Mistakenly you have shown NC
It shall be NC contact of 94 Relay and it shall be connected in series with CC not TC
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