what is mean by hormonics & surge? and it's effects?

1 Answers   TCS,

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When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

0 Answers   HPCL,

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Whats the diference between Induction motor and servo motor

3 Answers   Essar, PMT Machines,

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what are all the daily preventive maintainance carried out in transformer?

1 Answers  

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What will happen if apply dc source for power transformer

4 Answers  

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why the auxilary(starting)winding is provided in single phase inductoin motor?

5 Answers  

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sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.

0 Answers  

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What is the better way of passing 400 amp from sending end to receiving end ? By overhead line or underground cable and why ? if underground cable then how much depth require ?

1 Answers   Aditya Birla, HCL,

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Work done in a free expansion process is

0 Answers   Caterpillar,

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Why do we need interlocking in a HT metering or Ring main unit switchgear?

0 Answers  

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The series field winding has low resistance while the shunt field winding has high resistance. Why?

0 Answers  

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what is the accaptable voltage between neutral to earth & How to reduse the resistance of earth in chemical earthing

4 Answers  

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