which pole motor is best ?4 pole motor or 6 pole motor,why?

2 Answers  

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what is meant by differential protection of transformer

1 Answers  

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How the surge voltage can be arrested in electronic devices

1 Answers  

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WHY RATING OF VCB NOT LESS THAN 630A

0 Answers  

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If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??

0 Answers   Jindal,

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how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.

1 Answers  

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how to check the earth resistance value& what is the minimum earth resistance for good earthing sysytem.

33 Answers   Brookfield, BSNL, DMRC, Epoch, KPTCL, Polycab, Power Control, SIEA, Siemens, Wipro,

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why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?

1 Answers  

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THERMAL CAPACITANCE IS MEASURED IN..................................................

0 Answers   SSC,

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Which element is highly conducting coppoer or gold?

3 Answers  

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How to calculate % Impedence?

3 Answers   ISRO,

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what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me

0 Answers  

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