Answer Posted / satyanrayan

Soft starter mainly used to start reduced viltage and reduced
frequency prportional to voltage which in turn keeps v/f ratio

explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.

2763

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what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)

2217

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what the Microsoft .NET framework is?

2053

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i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

2068

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How is operate breaker failure scheme in substation

2178

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what is the use of commutator in dc motor if we supply ac ? commutator is used to convert ac to dc.and it is used to arrange the flux in unidirectional in case of dc supply. if we give ac as supply to dc motor what is the use of commutator?

2133

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State kirchoff voltage law?

1178

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if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

1466

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With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.

2025

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Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

2013

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Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.

1207

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how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

2223

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plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?

2355

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How to use earthing on shipments.

1495

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volts=230 c=10mf a=??

2097

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