Answer / pratik

When motor is overloaded for longer duration it's current Ia increases which cause heat in winding and as the heat increases the flux produced by the winding comes to saturation at one point,and so the motor stops to rotate.

how can we test the polarity of a 3-phase transformer?

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what is a 3 phase power formula ?

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what is the use of tertiary winding?

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can anyone plz tell me in 3 phase induction motor, whare we use STAR CONNECTED MOTOR and whare we use DELTA CONNECTED MOTOR

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how much the voltage & resistance should be ,between earth & neutral points.?& why?

6 Answers  

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if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?

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Why armour HT XLPE power cable required to Earth?

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Define over current & earth fault ?how its functioning ?

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What is the deference between earth fault & earth leakage

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is it possible to use a tranformer to regulate an unstable system voltage?

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How to select the different contactors ( starter combination) for different AC motors? what about fuse cappacity 4 different motors too?

2 Answers   Equate,

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whats the application of voltage regulation? and whats the voltage regulation's device?

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