When are the directional relays used?

0 Answers  

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How we do the maintenance of Servo motor, even we cant open it?

0 Answers   ITC Infotech,

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what is B , c & d curves in MCB characteristics i e Full Form of B , C & D . sir please give me answer

1 Answers   NCC,

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if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)

0 Answers  

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how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

0 Answers  

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hw to find transformer is in normal position? whether its in charged condition or not? except humming sound?

9 Answers   ABB,

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raleigh method

0 Answers  

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where any change in supply line due to the incipient faults in three phase induction motor

2 Answers   ABB,

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Stepwise process of Northern grid failure in 2012!? (dont copy paste from wikipedia)

1 Answers   Rashtriya Ispat Nigam Limited RINL,

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as a electrical student why should i hire you?

0 Answers   TCS,

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why steady state stability limit is greater than transient stability limit ? How it can be explained ?

0 Answers  

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can we run a motor rated 50Hz,415vac,1440RPM At higher speed then rated on name plate with the help of VFD /drive on long term basis.wheater it will effect the motor life

3 Answers  

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