Answer / tanmay kumar

generally magnetic balance test was done in transformers to know the ratio that means to check its rating whether it is giving the output or not as per the rating,,,in case of magnetic balance test the voltage feeded at the primary side always i.e l.v side and the secondary side is at no load i.e open ckted and a tongue tester is used to measure the amount of flowing current from primary to secondary.

Answer / k.prakashchandra

To limit the short circuit current

what is the voltage of insulation megger that should be used for measuring the resitance of 66kv equipments.

3 Answers   DEWA,

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What is Class and accuracy in CTs? Types of Classes and important of Classes?

2 Answers  

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primary of transformer connected to Dc supply in series with switch, and secondary connected on ammeter, what happens when swith On and OFF. (or) if continuously On and OFF

9 Answers  

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what is the formula for 3 phase motor starting cureent deatials 3phase 148A delta 415v, efficiancy 94% can we run the motor with 200A incoming supply

2 Answers  

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Please specify the parts of VCB&ACB

1 Answers  

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SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS

2 Answers  

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how to test and calculat the head and discharge in borewell compressor

0 Answers  

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What is 100% protection of generator? Why 100% is not used but 95% is generally used?

0 Answers  

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what type of oil is used in transformers? a)conduting b) insulating

25 Answers   ABB, LGS,

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How DC to AC convert

2 Answers   Access,

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why dc supply is given to the field of alternator

9 Answers  

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what do you mean by earth fault in transformer?

2 Answers   L&T, UPL,

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