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An electric motor may be protected against short circuits by what means ?

Pick up the right choices 

A.  Fuse 

B.  Contactor

C.  Magnetic-only circuit breaker 

D.  Thermal sensor or electronic multi-function relay 

 

Maintenance Engineering Preventive Maintenance Project Management génie électrique Ingénierie
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Question ajoutée par LABIB KOOLI , Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet , Tunisian Vocational Training Agency (ATFP)
Date de publication: 2015/02/07
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Mahmood Shaikh
par Mahmood Shaikh , Assistant Manager Electrical & Instumetation (E&I) , Aisha Steel Mills Private Limited (Steel Industry)

Yes I agree with those who had answered A & C 

Utilisateur supprimé
par Utilisateur supprimé

Thanks Mr. Labib

I think choice A&C

 

Ali Waqas Bhatti
par Ali Waqas Bhatti , Electrical Engineer , Lakson Group of Companies

fuse as well as circuit breaker ..............

Mohamed Hamdy Kamal Riad
par Mohamed Hamdy Kamal Riad , Senior Solution Architect , IBM

 Damage from short circuits can be reduced or prevented by employing fuses, circuit breakers, or other overload protection, which disconnect the power in reaction to excessive current .

 

So Answer is 

A. Fuse 

C.  Magnetic-only circuit breaker

Utilisateur supprimé
par Utilisateur supprimé

Thanks Mr. Labib

I guess  Choice  D 

Ridha SAIDANI
par Ridha SAIDANI , Maintenance Manager , SOMIPHOS / Technical Direction

Protected by : A fuse or a magnetic-only circuit breaker 

 

LABIB KOOLI
par LABIB KOOLI , Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet , Tunisian Vocational Training Agency (ATFP)

An electric motor may be protected against short circuits by : A fuse or a magnetic-only circuit breaker 

Elke Woofter
par Elke Woofter , Project Assistant , American Technical Associates

I believe the answers are A and B

A.  Fuse 

C.  Magnetic-only circuit breaker 

 

 

Paul Bryson
par Paul Bryson , UPS Service Engineer , Emerson Network Power

Fuses can be used but I would suggest a magnetic circuit breaker. You would have to look into the close & breaking requirements for the best solution.

Alex Al Yazouri
par Alex Al Yazouri , General Manager , Al Mushref Cooperative Society

C.  Magnetic-only circuit breaker 

Abu Hanif Md.ripon Ripon
par Abu Hanif Md.ripon Ripon , Maintenance Inspector. , Heidelberg Cement Bangladesh Ltd.

A fuse can protect an electric motor from short circuit.

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