Answer / tameshwar singh

ZERO

Answer / naveen singhal

1 ohm

Answer / john

It should be zero

difference bewteen reverse current and alternating current

0 Answers   ABB,

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what is cogging in motors?

1 Answers  

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what will happen if ac power supply is given to the rotor of an alternator

1 Answers   Goldman Sachs,

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Why iron core losses are constant at all loads in a transformer ?

1 Answers   GATE,

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WHEN I AM CONNECTIN TWO ELCB IN PARALLEL.ONE ELCB TRIPPED...HOW IT HAPPEND??

5 Answers  

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what is the potential of 11kv A.B.Switch

1 Answers   Power Grid,

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A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

0 Answers  

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what are the advantages of having high voltage in transmission lines?

5 Answers  

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what is the meaning of TPN

2 Answers  

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What is LT? And specify the range of voltage?

10 Answers   HSL,

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Why capacitor blocks DC current?

2 Answers  

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why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!

0 Answers  

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