Answer Posted / c. devadas

132 x 2 Meg.Ohm at 70 degree celsius. Every reduction of 10
deg.C will double the insulation value.

Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????

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Classify driling machines.

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Z transform is use when system is not a) converges b) diverges

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hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

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What is effect of over voltage and under voltage on ACB

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How phase displacement change in the over current relay coils.

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how is the incoming cable size calculated for a given current rating of a panel??

1427

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How to calculate cable size by using load.?? Any formula...

895

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What is boucholz relay and the significance of it in to the trformer?

651

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What are the two major types of control system?

638

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Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

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A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.

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from which formula we select a capacitor rating?

1614

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I WANT BHEL PREVIOUS QUESTION

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if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side

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