Answer / seshagiri204

genereally in our India standard transimission voltages are 11,33,66,110, 132,220,400 and 765 kv . because generator rms voltage output is given by multiple of form facor 1.11

In VSD (variable speed drive)I/P and O/P connections given wrongly what will happen?

5 Answers  

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1)we r having one problem .one dry type transformer(6.6KV/433V)is taking high magnetizing current on delta connected HV side of "U" phase when compared to other two phases.could any body tell the reason why it is happening? 2)why CT secondary side protection core has got higher winding resistance when compared to that of metering core of same CT?

2 Answers  

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During speed control of dc shunt motor with flux control methode,when armature voltage is constant, How can it possible to increasing the armature current?

1 Answers  

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why we use Test Terminal Block in 11 KV and 33 KV electrical panels.

0 Answers   EMC,

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does frequency affects the load? if yes elaborate it.

1 Answers  

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What is harmonics. How does it get generated and means to arrest harmonics

8 Answers   Airtel,

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What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines

0 Answers   Glenmark,

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What is different between MCB & MCC & isolator switch

1 Answers   Standard Chartered,

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why so maney smaller size capacitor use instead of single Big size capacitor in apfc panel

1 Answers  

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Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.

2 Answers  

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What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?

0 Answers   Jindal,

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ELECtrical

2 Answers   Bahwan Engineering, Bhel, Electrosteel, NBCC, Qatar Airlines,

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