In separetly excited m/c,we excite the field by a dc source,what not with ac source?

2 Answers  

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why motor starting current is High ?

11 Answers   Bhel, Jindal,

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WHY DISEL GENRATOR SET SHUT DOWN IN OVER LOAD CONDITIONS

5 Answers   HMT,

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I want d.g.set our company

0 Answers  

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any application of back emf

0 Answers   MahaGenco,

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How to calculate the current of Highpressure Mercury Vapour Lamp?what is the basis?whether we have to consider power factor or not?

0 Answers   Divis Laboratories,

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What are dependent sources?

0 Answers  

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in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

0 Answers  

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if 20 hp motor starts directly delta connection.motor what will be the effect.

3 Answers   HP,

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what are the different pre- commissioning tests performed on distribution transformer, power cable and switchgear?????

1 Answers   Reliance,

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what is high voltage in india?

11 Answers   Essar,

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is dc transformer is possible ?

4 Answers   Jyona Power,

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