Answer / nithi

yes.The poles changes for every half-cycle of ac voltage.

Because the polarity of AC voltage is continuosly
changing for every half cycle.
so, interchanging of terminals in ac system
does not show any difference.That's why the ac solenoid
attract the plunger eventhough it's terminals are
interchanged.

what is the max working temperature of an oil filled transformer say of about 1500kva.

3 Answers  

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what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?

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why the pf of semiconductor device is improved the electrical devices

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During underground cabling in landscape area what did we cover the cable with to prevent the electric shock & protect the cable?

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i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?

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if the supply frequency increases what happens to the motor load

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What core magnetic balance test of transformer? How to do this test in a three phase Star delta (star-LV, Delta-HV) transformer? How to measure and where to measure? thanks and regards Austin

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How to control the dc motor in ac supply without thyristor circuit?

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In which working principal temperature transmitter work.explain in detailed.

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Total power capacity of india at present

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220/33kv voltage level having 60MVA rating , which transformer is preferred two winding or auto transformer. why, kindly provide your strong technical valuable views.

1 Answers  

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What is mean by INRUSH CURRENT?

8 Answers  

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