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.

In an alternator running with a balanced zero p.f. lagging load, phase differernc between the resultant armature flux and main field flux is always____? options is 180 degree....why?? explain.

1 Answers   BREB,

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How is magnetic leakage reduced?

0 Answers  

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what is the highest transmission voltage in India till now?

36 Answers   Bhel, Electrical,

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which will glow brighter?bulb 1 (110v,100w) and bulb 2 (230v.200w) series connection

6 Answers   EnPower India,

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what sq.mm copper pvc wire need for ac load current 25amps for 230v ?

4 Answers   Khadamat, Siemens,

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where is the primary of CT??

3 Answers  

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What is relation bet kvar & microfarad

2 Answers  

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sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in

0 Answers   HPCL,

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what is diffrence between primary & secondry transformer?

3 Answers  

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what is earthing

1 Answers  

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can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

3 Answers   GMR,

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1 sq mm conductor=? how many amps

3 Answers  

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