Answer / mehran

flow of the electrons is called current.
transfromer is not change frequency .but voltage step up.and down voltage.

what the effect will occur if we increase the airgap in induction motor

4 Answers   IES, Tanfac,

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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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why we use to always generate power below 16kv.why not at higher voltage?

3 Answers  

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what is the working of air compressor.

5 Answers  

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what is residual current....

1 Answers  

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what is an impedance & inductance ?

4 Answers  

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What is a doble test

1 Answers   KPSC Karnataka Public Service Corporation,

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for compensate 315mh inductance ,how many capaciance required?

0 Answers   Mitsubishi,

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If auto trip is operated, can you close the breaker.

2 Answers   KSEB, L&T, Siemens,

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how we can know the rating of transmission line by no. of insulators disk ??????????

3 Answers   NTPC,

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What are the different pre-commissioning tests that are performed on the distribution transformer, power cable and switchgear (11kv)?

1 Answers   Hitech, Reliance,

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WHAT IS THE HIGHEST UNDERGROUND TRANSMISSION VOLTAGE IN THE WORLD?

3 Answers   Power Grid,

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