Answer / pillay

It is armoured.to arm is to protect against harm. So
armoured cable is cable with some kind of protection like
steel wire, copper tape, lead covered, pvc, xlpe, or steel
conduit or some other type.In unarmoured cables it is
unprotected cables other than electrical insulation.Than the
user decides to provide the necessary mechanical protection
as necessary.

for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

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if dc is better then ac...then why we are perfering ac over dc?eg:at home?

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if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

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How many earthings are required for motors?

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bsnl tta exam question

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what will happen when ac is applied resistor,inductor,capcitor?

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What will happen if we give the 3 phase supply to the rotor of slipring induction motor?

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Is there chopping current in resistive circuit

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Why we can't start a tube light without a starter(choke) and an inductor?

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Why corona leads to production of Ozone and glow of the color VOILET?

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why earth hole size is biggest in plug point?

22 Answers   Al Qabas, HCL, RRB,

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what is the effect if we add capacitor on DG supply, it has any loss or benefit.

6 Answers  

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