Answer / s raghavendra

for different types of applications different kinds of switches are required . for starting of induction motors especially 3-phase squerriel cage induction motors at start it consumes more current to stop that we keep the switch in star position and after it attains 70-80percent of rated speed switch is kept in delta mode as already backemf will be generated which reduces currrent and like this there are many applications......................................

FRIENDS, I am doing DEEE (part time)final year. Give me some ideas for project

5 Answers   HCL,

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plz tell me about for how many rating (for 500kva)how much current taken?

13 Answers  

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transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

0 Answers   Bhel,

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I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

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is there a different b\w ground fault CB and earth leakage

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if the synchronizing b/w generator and busbar not complete and we close the out going circuit breaker of generator then what happen ?

4 Answers  

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what will happen when reverse reactive power occurs in alternators?

3 Answers   Reliance,

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What are the advantages of vscf wind electrical system?

0 Answers  

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The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

0 Answers  

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

0 Answers  

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In UPS what does 600va reffer to?

4 Answers  

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Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?

0 Answers  

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