How Humming noise generated in starter motor which was used the start the engine in a vehicle/car/Truck?.Moreover Starter motor was operated in DC power supply. Can you guys clarify ?

2 Answers  

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Which ciass CT can be use in diff. protection. Can be use 5p20?

5 Answers  

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On what basis primary and secondary of a transformer is chosen?

2 Answers  

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If ac 230volts inputsupply to full wave rectifire what is D C output voltage.

3 Answers  

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two transformer connected in parallel.tap change are different.if i want to on the buscoupler what happen?

1 Answers   Essar,

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Which element has power dissipated in it when the source is removed ?

2 Answers   SSC,

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why current is leading in capacitor?

1 Answers   PSU,

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In Power cable specification what is U0/U and Um.

0 Answers  

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What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

0 Answers  

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IR value for 30kw lt motor

1 Answers   Hofincons,

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Write the force balance equation of ideal dashpot element.

0 Answers  

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I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 Answers  

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