why we use RYB phase sequence? and somewhere we use UVW ? why?

6 Answers   CSPDCL-Chhattisgarh State Power Distribution Company Limited, MUET, TCS,

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We have one 500KVA transformer. We have tested REF relay and commissioned. After one and half year, due to some ground fault in one of the DB circuit Transformer tripped by REF relay. What will be cause and remedy. Please advise?

1 Answers  

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0 Answers   Bhel,

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Why transformer making noise during the operation?

2 Answers   TCS,

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Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?

0 Answers  

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WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....

0 Answers  

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Why we are getting low voltage in star connection?

2 Answers  

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can we coorect P.F. OF 320 KVA ALTERNATOR AT LOCAL SITE WITH RATED .8 PF LAGGING.

1 Answers  

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What is Diff btw Fire Alarm & VESDA System???

0 Answers   EFY, Emerson,

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Why CT's shall not be kept open?

5 Answers   ABC, Qatar Gas, TIPL,

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what is called inrush current??

1 Answers   KSEB,

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WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers

0 Answers  

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