Answer Posted / atreya

AVR stands for Automatic Voltage Regulator. In case of
synchronous generators, it is used to control the generator
terminal voltage and maintain it at a certain set-point(
say 11 kv) by controlling the excitation voltage of the
exciter of the sync. generator.

What do you understand by external characteristics of a d.c. Generator?

1095

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why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

1947

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Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???

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Is there possible to Test Transformer for Overfluxing Capability. Or is there any firm who does Overfluxing Test on Transformer?

3086

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why dc is used in control circuits for MV & LV switchgeras instead of ac

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What is 11 N1 and 12 N2 in single phase Transformer ?

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How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

2129

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can u give me a brief idea about power line carrier communication ??

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HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?

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Tell me in detail about c.t. And p.t. ?

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do we use links in a dc circuit?if so what s its use in it?

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