Answer / peter hone

Field loss is where field winding loses its residual
magnetism and can not operate. The process to reinstate the
magnetism is to flash the field...by flashing a small
battery across the field winding momentarily to regain the
magnetism...
Have done this on many occasions...it works!

what is diffrential relay used in generator plz give brief explanation

4 Answers  

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why stay insulator is not used with stay wire for 11kv Lines. Whereas it is used for LT lines ?

2 Answers   Essar,

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we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

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5 Answers  

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what is the main parts of DG? how it is working?

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Can we use HRC Fuse inplace of Semiconductor fuse?

1 Answers  

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1 Answers  

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5 Answers   Vedanta,

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what is means of CLASS in current transformer name plate?

3 Answers  

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defination of loads

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1 Answers   Roto Power,

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how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.

0 Answers  

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