What's the differs between voltage & current & emf.

1 Answers   CTS, NTPC, TCS,

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what is the diff. b/w restricted earth fault relay & standby earthfault relay and where they are used?

4 Answers   KSK Energy, Reliance,

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What is the difference b/w RMU & substation

1 Answers  

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The synchronous speed of a motor with 6 poles and operating at 50 Hz frequency is ___.

4 Answers  

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What are the usege & different between UPS & batteries with charging system in in Substation?( UPS 120V AC & battery charger is 120v DC)

1 Answers  

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Can u tell me design of switch yard

0 Answers   NTPC,

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Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.

0 Answers  

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pleasee tell me the risks and hazards of a Cable Jointer job? Thank you.

1 Answers  

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what's the different between ELCB, ELR and ELS?

1 Answers   CP,

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Explain the experiment on ward leonard method of speed control of a dc shunt motor.

2 Answers  

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What will happen if 230V DC motor connected to 230V AC Supply?

15 Answers   Ashok Leyland, BOC, JSW, ONGC, RRB, TRB,

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in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformer 

0 Answers  

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