Answer Posted / raul

AVR- AUTOMATIC VOLTAGE REGULATOR
AVR is a device used to measure any difference in the
generator terminal voltage and highly stabilized reference
value, and if it detects any difference, it controls the
firing pulses of the thyristors connected in the
system.....to change the output voltage of the pilot
exciter which in turn changes the output of the main
exciter n ultimately the generator voltage........
IN SHORT, IT IS USED TO MAINTAIN THE GNEREATOR TERMINAL
VOLTAGE B/W THE TRANSIENT STABILITY LIMITS so that d
generator remains in synchronism

what happens if dc supply is given and the remedies for it.

1790

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slipring induction motor starting time Lrs operating why lrs starting time lrs outer body didn't get shock

1923

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can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?

2284

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2222

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what are the dimensions for 200 kva transformer plinth (plateform),in which pcc m20 is used..

11674

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which protection function should measure RMS value of current&DFT value of current?

2066

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How the PF control while running DG set with load

2156

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Explain thin film resistors and wire-wound resistors

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2413

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1934

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what is the best transformer oil breakdown voltage?

1112

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1651

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Is vtg is controlled by the resistor? if else how much?

2067

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Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?

2129

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

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