why does in transformer the v/f ratio constant?

2 Answers   TATA,

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why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?

0 Answers  

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Why we does earthing for transformer neutral point

5 Answers   amps, DLF,

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why the vfd motor take current high in vfd panel then mcc panel.current in vfd panel=160A in 93%.and mcc panel it shows 130A. (132kw motor)

1 Answers  

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We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?

0 Answers   Bhel,

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For 6600/433 distribution transformer we apply secondary side 433 volts how much voltage in primary side.

2 Answers  

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Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above

0 Answers  

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what is non uniform load

1 Answers  

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what is the use of tertiary winding?

2 Answers  

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sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.

1 Answers  

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what is relation of rpm with Power supply? rpm directly Proposational to power ?

2 Answers  

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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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