Answer / k.prakashchandra

Large gens have field as rotor and field supply is given
with the help of collector rings (slip ring) and carbon
brushes from shaft mounted DC exciter or external excitation
panel .In case of brushless, DC excitation supply is given
directly from shaft mounted armature of the AC exciter
through the rectifiers.Its field is controlled from outside.

what will be the min and max voltage flow from neutral to earth?

0 Answers  

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Usage of flywheel diode in relays

0 Answers   Jindal, Voith,

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The corona effect is more in a) summer b) winter c) dry weather d) humidity weather

10 Answers   CPCL,

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What is the voltage gain or transfer function of amplifier?

0 Answers  

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Why the Transformer connection is changing in different transformer?(Like Star & Delta,Delta & Delta,Star & Star,Delta Star) From that connection where it is used?

2 Answers  

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why maintenance batteries used in DG sets not in MAintenance free Batteries.

4 Answers  

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We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?

5 Answers   Siemens,

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How we can design a cable for a 3phase load.

1 Answers  

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why we use iron corn in transformer instead of wooden core

12 Answers  

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Name some application zrea where IDMT relay can used?

3 Answers   SKB,

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purpose of flux relay for turbo generator in power plant

1 Answers  

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what is the ciruit diagram of transformer vector grup test?

4 Answers   Green Power,

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