WHY SEPARATELY EXCITED MACHINE NEEDS EXCITATION BY DC SUPPLY WHY NOT BY AC

0 Answers  

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1]how the voltages and frequency are achieved on ships. 2]how does the line and phase voltages are related on ships.

3 Answers  

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What is the method of Tan delta test for power Transformes and why it is required.

1 Answers  

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what is the meaning of the symbol << >> put in transformer drawing

0 Answers   TATA,

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how can we run the induction motor at 9000 rpm ,by keeping frequency constant??

2 Answers  

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IN HT MOTOR HT REFERS TO HIGH TENSION OR HIGH TRANSMISSION?

11 Answers  

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A well system is when , no. of bus bar is less or more. Tell me the concept of it.

0 Answers  

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What is SFU why it is used

1 Answers  

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Define average demand?

0 Answers  

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Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected

0 Answers   Bajaj,

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Why the design of electromechanical energy conversion machines is based on the medium of conversion as megnetic field not as electric field?

2 Answers  

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Iwould like to know barc interview questions

0 Answers   BARC,

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