Answer Posted / magoola faruku

AVR MEANS AUTOMATIC VOLTAGE REGULATOR-BUT works hand in
hand with the thyristor bridge responsible for
transforming the ac to dc which is used in generating the
ac voltage and at the same time uses the feed back lines
from the output of main ac in line with what is set to
varify wether the ac as per set is ok or not. if not ok avr
requests the bridge to send a more dc or if less then
request to reduce on the dc and as such carrying out the
function of regulation

IF 8255 CONTROL WORD IS 94H,Tell the chip port work mode ?

2617

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Define early construction of human being

1962

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why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

2252

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What happens if we connect a single phase energy meter in reverse polarity.

2419

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How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?

1996

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Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?

2170

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1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?

2050

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what is the difference between vector scale and vector diagram?

4523

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full form of flry b

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what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

2429

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sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

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why the pf of semiconductor device is improved the electrical devices

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In power transmission using open belts or horizontal shafts it is preferable to have the slack side of the belt on the top because

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during installation time of transformer and alternator which points we have to observed?

2011

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