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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Mention the difference between Analogue and Digital circuit?

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Why DG self motor winding burnt out?

1 Answers   Aegis,

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State any two nuclear power stations in India, with their generating capacity.

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what is meant by mimic diagram ?where it is used ?plz explain briefly

2 Answers  

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how to calculate the lightning arrester conductor @ no of earth pits required

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HOW GENERATING END VOLTAGE LEVEL (6.6 KV/ 10.5 KV/ 11 KV/ 13.5 KV) DECIDED IN POWER PLANT. ON WHAT FACTORS THE GENERATING END VOLTAGE DECIDED, & WHAT IS THE CALCULATION USED FOR THIS.

3 Answers   Areva, Cognizant,

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in what type of applications v can use q meter?

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1)which height building required lightning arrester? 2)how to calculate the requirement of lightning arrester? 3)what is the pro instrument? 5)how to test protective relay like overload?earth fault relay?

1 Answers  

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how to reduce power loss when the tranmission under long distance?

19 Answers  

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HOW TO CONVERT SQ MM OF A CABLE TO DIAMETER, EG. CABLE SIZE IS 185SQ.MM WHAT IS THE DIA OF THE CABLE??????????????

3 Answers   Parsons, SWAN,

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If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

0 Answers  

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