Answer Posted / manju

In ht side current is very low

What is purpose of reactor?.What is different between line and bus reactor?

1899

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Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............

1756

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Why do we avoid electrical conduits in floors at apartments?

2024

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What happens if we run alternator on under frequency? 

2053

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what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

2274

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sir vizag steel ka junior trainee ka paper kitne number ka ayega

2196

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Usage of flywheel diode in relays

1869

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what are the breakdown voltage rating of mini- curcuit'transfarmer!

2119

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what is the function of impulse relay

2469

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what is KSR type transmission tower? What is LSR type transmission tower?

5334

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What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?

1906

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How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?

1755

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can some one clearly explain why -48 volt DC use in telecom site????

1634

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What are the disadvantages of hydropower?

1155

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How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

2069

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