Answer Posted / sanu chaudhary

armature current of alternator depends upon the power
factor of machine .AT THE UNITY POWER FACTOR armature
current is minimum ,armature current of machine will
increse for same power if power factor of machine is
lagging as well as leading so it is desired to run the
machine near the unity power factor for optimum utilisation
of capacity of machine .in the leadind power factor machine
take reactive power from the infinte bus or grid and
machine is under excitation so it may be the cause of
panelty from power corporation due to reaciving of reactive
power hence we operate the machine near .9 lagging power
factor

in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

2261

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In convertor can we use rectifier thyristor in place of invertor thyristor with explain.

1820

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What is order of the system?

1139

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HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com

2264

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How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15

3267

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What is lighting kitts.

2113

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What will be electrical cost per sqft for IT building (basebuild and fitout)and for residential township?

1938

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explain supply side and demand side energy management with advantages & disadvantages

2152

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When can we take Neutral as common neutral link?

1665

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advantages & disadvantages of Lagging and leading power factor .

9627

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when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

2045

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What is meant by Low Resistance Cable and High Resistance Cable.

1914

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why moisture formation found in XLPE Armoured cable outer sheath

1818

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i wasted one year for the job after completed my btech what can i say about 1year time in interview

2116

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Define unilateral circuit?

1250

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