WHAT IS DIFFERENCE BETWEEN idmt and instentanous relay? is idmt is used as back up protection or else?or when instantenous relay saturates IDMT will operate???

1 Answers   BK, REL,

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what is the difference between circular wdg & ractangular wdg?

0 Answers  

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Advantages of short circuit and open circuit tests of a transformer?

3 Answers   Engineering,

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we know that dc motors are more superior then three phase induction motors in torque generation though they are not much used in industries why?

5 Answers   Essar, L&T,

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How to PLC give the command to electrical

1 Answers  

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What is meant by load angle of an alternator? Upon what factors does the load angle depend?

0 Answers   VECL,

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What is difference between potiential,volatge and emf

1 Answers  

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1. how much normal earth resistance in earth pits(neutral and body earth) and transformer neutral and body earth & panel earth.

12 Answers   HP, Malladi Drugs and Pharmaceuticals, Pearl Engineering, PL,

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what is induction motor

2 Answers  

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Electromotive force is provided by:(a) Resistance’s(b) A conducting path(c) An electric current(d) An electrical supply source

2 Answers  

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what will be the minimum megger value for 132 Kv (earthed) potential transformer

3 Answers  

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What is double delta conection in AC Motor? And can we done the double RPM of the motor by double delta conection?

1 Answers   vguard,

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