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Do fuses better protect a motor than circuit breakers? Are fuses more fast acting than circuit breakers? appreciate your answers in details

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تم إضافة السؤال من قبل HAYTHAM HASHIM SHARSHAR , Sr. Electrical Engineer , INTERNATIONAL CONSTRUCTION CENTER FOR ENGINEERING CONSULTANCIES (I-CON)
تاريخ النشر: 2016/10/28
sundas azeem
من قبل sundas azeem , Trainee Engineer ,  Ali Gohar Pharmaceutical (AGP) Pvt

Fuses are use one a time and beaker use many times Fuses are probably good for low voltage equipment's but not usually good for motors which needs to spike a power to start.so that breaker's provide a batter protection for motors.

 

KASSEM JOUNI
من قبل KASSEM JOUNI , Electrical engineer consulting , SV Properties Co.

 I PREFER CIRCUIT BREAKER THAN FUSE 

Mahendran  Thangaraj
من قبل Mahendran Thangaraj , Services, Testing and Commissioning Engineer , Boustead controls and electrics pvt ltd

yes the reason behind this

Normally from mains we had fuse rating is less compare with circuit breakers ,than mounting of the fuse is before the circuit breaker.if any abnormal condition is occur first fuse will blown.

I don’t prefer to use fuse protection for three phase motors, in case of one of these fuses extinguished so we will lose one phase, which lead to totally burn for the motor.

I prefer to use circuit breaker with overload thermal relay based on the motor load calculations.

 

 

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