Answer / vishwatheja1989

it is dangerous to motor(it may burn) and supply(large current flow) as induction motor must have a shorted rotor(closed winding). if it is opened and give the supply it acts like static transformer.

what is meant by vector group of a transformer? How can it be derived?

0 Answers  

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Now I inject 1kv DC supply r&y=??? R&Y=?? Y&B=?? B&R=???? RYB&N=??? RYBN&E=????? Minimum value====???????

1 Answers   Integra,

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Is neutral transformer can be called as control transformer?

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can we use 400w coke instead of 250w choke in 250w fittings

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is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

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What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

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how harmonics generated in induction furnance? how minimise it?

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in dc shunt motor if armature wdg is open then

1 Answers  

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what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?

1 Answers   CESU,

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Why does the power consumed is always constant even if a fan speed is altered?

4 Answers  

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In a transformer ,when voltage decreases current increases. but this is a violation of oms law.why?

15 Answers  

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why we use the fuse in only one wire? althrough in ac current the current flows in both directions. why the neutral wire can be taken half the magnitude of phase wire while same current returns from neutral wire?

2 Answers   Bhel,

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