what is the difference between normal motor and flame proof motor??

1 Answers   PI Industries, SRF,

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why dc series motors never start without some load, and what will happen if starting with out load..

1 Answers  

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electrical

0 Answers   BSES, Minda,

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1)how many types of earth? 2)how many types of megger and how to select that range? how much time taken for megger calibration( we r using megger)

1 Answers  

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why core is useful for the transformer and in its operation

1 Answers  

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Why converter duty transformer neutrals are not earthed...i am still not sure if this question is also correct...Please email at ranjan120482@gmail.com

0 Answers  

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what is meant by slip & where its occur ?

5 Answers   Lanco,

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If ct ratio is 250/1 and mtr is of 5 amp, what will be mf?

1 Answers  

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how do we calculate cable sq mm size,that if 50 A load

2 Answers   GTL, PowerTech,

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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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Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?

0 Answers  

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cable selection formulas for electrical load.

1 Answers   Bhel,

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