if dc excitation is used to produce manetic flux in rotating machines then ehy it is not used in transformers.

4 Answers  

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In an alternator running with a balanced zero p.f. lagging load, phase differernc between the resultant armature flux and main field flux is always____? options is 180 degree....why?? explain.

1 Answers   BREB,

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why armature is placed in stator but not in rotor in synchronous generator ?

2 Answers   Student,

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10 tube light connect in mcb breaker.one tube light is fault.so breaker is tribe.how fault is rectified.(using 3wire phase,earth,neutral)

0 Answers   CTS, Jindal,

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WHY IS THE EARTH FAULT CURRENT ALWAYS LESS THAN THE NORMAL CURRENT??

7 Answers   Reliance,

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during parallel operation of two ac generator which condition must match before taking both parallel i.e speed /voltage rating /kva/exciation

2 Answers  

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what is apparant power and reactive power

2 Answers  

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could anyone suggest project title

1 Answers   Engineering,

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What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

0 Answers  

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what is ferranti effect?

9 Answers  

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What is power relay?

0 Answers  

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What is the function of neutral CT in transformer? Turn ratio of typical CT for 2MVA transformer ? or relation between full load current of transformer and neutral CT ?

1 Answers   Electrical Inspectorate,

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