How to reverse the direction of a DC motor ? By reversing the Armature wires or by reversing the field wires

2 Answers   KFC,

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how much battery need for 2kv online ups for 2hr backup

3 Answers   Eaton, Emerson,

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In a synchronous machine if the field axis is ahead of the armature field axis then the machine is ?

1 Answers  

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break down of electricity is more in summer or in winter ? give reason

4 Answers  

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what is stepping motor and where can use in electrical installation.

3 Answers  

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Find defination of KVA convert in to KW.

4 Answers   ABB,

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difference between dol and rdol startors?

2 Answers   Vijai Electricals,

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what is corona effect

3 Answers  

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DC transmission

0 Answers  

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what is transformer

63 Answers   ABB, Advance Power Controls, CERC, Electrical, Electrical Supervisor Competency Certificate, ETA, IBM, Jindal,

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what is the difference between earth leakage and earth fault?

0 Answers   L&T,

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why the three phase transformer's star point does not sparks or seperated? while we often see that two phases touches each other it sparks and ocationaly conductor breakes out.

4 Answers  

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