In a Synchronous generator, Can AC voltage be used instead of DC voltage in field winding of rotor to produce AC power?

10 Answers   NTPC, Windia,

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why PT Primary are the grounded?

5 Answers   L&T,

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how i define power factor when some one ask me ,,,,,what is power factor ,,,,,pleas define it simple. (pleas dont use these worlds ,,the difrence bitween apparent power and actual power is power facter )

1 Answers  

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which is better 50 HZ supply or 60 HZ supply?

6 Answers  

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How can calculate ups battery back up time?

25 Answers   Cisco, Cooper, Pronet, Wipro,

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Write the current equation in series RLC circuits.

0 Answers   Agilent, Integreon, ZS Associates,

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what will happen if capacitor bank is used in generation side?

2 Answers  

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What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?

0 Answers  

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which pole motor is best ?4 pole motor or 6 pole motor,why?

2 Answers  

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how can 3phase motor speed can be controlled without vvf drive?

1 Answers  

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In some countries it is found that an Earthing Transformer is connected at the LV sides of the Transmission and Distribution Substation Transformers.Actually what is the purpose the Earthing Transformer?

1 Answers  

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A 200 KVA UPS's load current is 70 A. We want to provide a Generator back up. What capacity of DG required for this ?

1 Answers   Reliance,

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