in our 6.6kv motor feeder[it is having two sources from Bus A&B] earth fault relay is acting, we checked CBCT connection and cable meggerd values found very good still earth fault acting during first two are three start after that it will hold. please clarify what was the reason. if same motor is starting from other Bus-A it will start.

1 Answers   Gasal, Voltech,

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how power factor improves by connecting syncronous motor

2 Answers   ACC,

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what is the installation process for lifts

0 Answers   DLF,

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Why at the starting of induction motor current is high?

5 Answers  

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sir, iam a electrical engg graduate and i want to go in automation sector and for this i have decided to do industrial training for this,plz suggest me some good institute for the same in delhi,ncr. my degree percentage is 58%, can i get job after doing training, plz help....

0 Answers  

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What is the basic difference among Circuit breaker,Contractor and Isolator? Are they different names of same device/equipment?

2 Answers  

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why the manufacturer provide M and C terminals ? why they will not internally short them ?

1 Answers  

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why a bulb glow when connected with two end phase and neutral respectively.

1 Answers   ACME,

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If breaker is undefined position, first step to do.

0 Answers   KSEB, L&T, Siemens,

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What is the purpose of reactor.why we used in over head line?

2 Answers  

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Assume a condition such that two motors of rating 6.6kv,415v are connected to blower,so tell me which motor draw large current give appropriate reason?

2 Answers   NTPC, Student,

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which motor is suitable for traction? why?

15 Answers   BCH, KPCL,

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