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.

Does increase or decrease of reactive load affects the Voltage.

5 Answers   Nalco,

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why we are using R,Y,B colours for 3 Phase ?

4 Answers   ITC Infotech,

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DIFFERENC BETWEEN VOLTAGE AND CURRENT

1 Answers   Wipro,

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some practicle study shows that the reactive power at the receiving end is not equal to the reactive power at the sending end.But according to theory the reactive power is exchanged by different parts of the network – capacitors and reactors permanently, but is never consumed or produced. Then Where that reacrtive power loss occuring?is there any formula to calculate reactive power loss?

3 Answers  

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How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?

0 Answers   npcc,

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trasnfarmaer core make

0 Answers   MPSEB,

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If ac voltage applied to the field of dc generrator the output of dc generator ?

1 Answers   SSC,

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my motor rating is 800HP, 128Amps, 3.3kV. What is capaitor bank i can use for PF improvement to 0.990?

3 Answers  

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what will be the minimum megger value for 132 Kv (earthed) potential transformer

3 Answers  

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Why is making current of CB always greater than CB breaking burrent?.

6 Answers   JP Group,

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advantages & Disadvantages of Solar power system?

2 Answers  

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2 hp motar how many amps taken please show me the formula

4 Answers   Cable Wireless,

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