Answer / sewagudde

the automatic voltage regulator (AVR) senses changes in
voltage and sends a signal to the controller on the tap
changer to either raise or lower the tap.it should be noted
that the tap changer is always located on the HV side of
the transformer inorder to interrupt smaller currents as
compared to the LV side

Answer / debasis

There is controler which sence the voltage & give command
to a stepper motor that how many step(s) & what direction
have to go for achiving the required voltage.
And the changeover held inside a oil chamber to avoid
sparking.

why capacitor burst?

2 Answers  

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-How do you select cable size for a given load at a given distance from source of supply. How do you find voltage drop.

0 Answers  

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what is meant by 3rd hormonics ?

0 Answers  

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pf of synchronius motor is unity, is it axact(=one) value. ?

1 Answers  

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What is the full form of AND,OR and other logic gates

7 Answers  

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what is slip resistance? how much its value in 110 kw motor? why voltage is varied in vvvf drive ?

1 Answers   Reliance,

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Which one is correct mVA or MVA. Whether both the units are same for the transformer

10 Answers   Areva,

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Is there any specialised book to refer about fault level calculation both in MV and LV side??

0 Answers  

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what is kvarh? Please define it With calculation General motors ?

0 Answers  

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WHAT IS MINIMUM AMOUNT OF CURRENT THE HUMAN BEING CANT RECOVER FROM THE SHOCK,WHAT IS THE RESISTANCE OF THE HUMAN BODY

3 Answers  

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why for transformer protection we protect tranformer from 3rd hormonics and 5th hormonics and what is the reason of generating these horminics in electrical system?

2 Answers   Essar, LG, OPS,

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Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.

0 Answers   SK Engineering,

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