Answer Posted / kj

First the motor will run faster as the speed is determined
by the frequency. A 4 pole motor will induction motor will
run at about 1440 rpm at 50 Hz. At 60Hz it will run at
about 1730 rpm.
Where the problem may be is that a 50Hz motor will have
more iron in the core and will need a higher voltage to
produce the correct strength magnet field.

Explain the different regions in frequency response?

1129

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

1943

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On what principle electric motor works?

1247

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Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

1683

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Wind mill

1954

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2038

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what is your majour contributions in your present job

1906

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hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

2174

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Iwould like to know barc interview questions

3332

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what is the relation between reactive power and power factor for the what is the limit of reactive power and power factor

2154

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Is it possible to use a S1 duty class motor for crane application (S4)? If not, why?

2495

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2096

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Explain about how is it working Earth fault'relay and wahts the resistance value of earth bed

1588

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What is A check, B check, C Check & D check for a diesel Generat

2165

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Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?

1202

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