how the harmonics are generated in transforemer?

5 Answers   IFFCO,

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what is vA rating and class of a ct.

0 Answers   L&T,

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why we are having many type of vector group in the transformer ,what is the use of it?

2 Answers  

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What is transmission line potential gradiant?

1 Answers  

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sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

0 Answers   Jindal,

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explanation of mesh bus bars

0 Answers   Eskom,

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What's the part of OTCC in transformer?

7 Answers   Bhel, RRB,

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a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?

2 Answers  

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If we increases the %impedance of Transformer then price of Transformer will increases or decreases.

1 Answers   Siemens,

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what are the protection for DG set and why?

2 Answers  

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I have two power supply.a)govt. power b)Captive power.3 phase load connected inside factory.when source change govt. source to captive some motor rotate reverse. Is phase sequence changes when if off & on?If I off generator & on it again is it possible to get changed phase sequence??

4 Answers   ABB,

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In a synchronous motor. if start is running at high speed.  What will be the starting torque : Higher Lower Zero

0 Answers  

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