Answer Posted / baljinder singh

First of all ,when we give the dc supply to
transformer,flux set up around the winding or in core ,but
this flux is statoinary and not link with winding so there
is not produce the back emf .The resistence of primary is a
few ohm(1-5).According to ohm law I=V/R .
When voltage applied across ,the back emf is not
produce ,resistence is very low ,so heavy current flowing
throw it .The winding will burn.

How vfd saving power.

1972

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what is the difference between an alternator and a synchronous motor

1961

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tell me some type of questions throught which i can prepare for exam and do my best

1939

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please give me all the Alarm .Trip ,Safety Relays & Conditions of Chiller mail me on ashokbabunhce@gmail.com

1756

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I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

1898

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Define the overload capacity of the motor?

1994

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Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar

1724

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what is the circutor?why we use it ?

2255

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Why can't we parallel the secondary circuits of two voltage transformers?

1435

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What is the necessary and sufficient condition for stability.

1082

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why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding

1793

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Plz tell me how we can find that particular company has vacancy or not

2218

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We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.

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Please send 110 kv sb station full single line drawing(sld)

2411

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is IS says that neutral should be brought to switch box. and this one is a recomended practice

1811

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