Answer / tj

the requirement for the excitation is of constant pole
electromagnet not pulsating pole em, as this only can lead
to pulsating emf on armature.

Answer / manikumar agcet

If excitation is dc then it is
easy to vary output voltage&
powerfactor.

how to select the no. of brushes in a lap winding?

0 Answers  

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How the over load setting for HT Motors calculated-provided in Numerical Relay

0 Answers   Damodar Valley Corporation,

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how to calculate mf when meter and cTPT detail are given

0 Answers   IBM,

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Lt motor sfu flashing reasons?

0 Answers   NDFL,

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IN 6.6KV 3 phase switch gear .i will give 6.6kv to R phase only to earth in during H.v testing (through H.v KIT).what happen remaining phases.how much voltage get remaining phases.why? explain.

1 Answers  

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Natural frequency of a system gives... 1) nature of transient 2) overshoot 3) oscillations 4) speed of response

1 Answers   CCP,

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In secondary transmission i.e., in distribution side, supply for homes are connected through different phases in order to balance the 3 phase load. But in practical we saw nearby house doesn't have power due to single phasing. But other two phases give supply. How it's possible? it doesn't make "single phasing"?

1 Answers  

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how unidirectional torque is produced in DC motor?

0 Answers  

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How to set the relay,,??

0 Answers   Megatron Solutions, Nestle,

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what happens when dc supply is given to the transformer?

3 Answers  

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What is skin effect?

2 Answers  

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what are the tests comes under the type test, what tests comes under routine tests.

0 Answers  

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