In synchronous generators field is rotor and armature is stator.Can we take the output at the rotor in case of synchronous generator by the dc excitation on the stator?

2 Answers  

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how to reduce the magnetizing current in distribution transformers

1 Answers  

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To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

2 Answers  

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On what basis the the size of Lightning arrester for buildings are selected ?

0 Answers   KGD,

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what happens in a genarator when rotor supplied with ac instead of dc

3 Answers  

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when we see the lube oil grade its 15w/40 or 20w/40 in this what is W Explain breifly

1 Answers  

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if current required for triggering thyristor at -30 degrees(temp) is 80 mA, what is the current required at 60 degrees

1 Answers  

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how we protect the motor & what are the components required for that ?

2 Answers  

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what is the transformer

6 Answers  

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What is the meaning of high reputuring in HRC fuse.?

1 Answers   ABB,

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How does an oscillator differ from an amplifier?

0 Answers  

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What is the main application of DUMMY COIL in machines?

3 Answers   IES,

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