Answer Posted / manjunath

Lubricant oil is used in T/F for Cooling Purpose

upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

2140

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What is Negative Potential Bias

2293

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what is difference between bus coupler and auto transfer switch

4172

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Why is ignitor used in sodium vapour lamp

3551

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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..............

1814

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What is a dominant pole?

1163

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what is the major difference between LIBBP & HIBBP.. which one is most preferable..

2977

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i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....

1905

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what are the basic insulation levels & what its Unit

2010

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I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.

2062

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how to identify vector group of three phase transformer by voltage method?

1620

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how to discharge 3 phase power factor correction capacitors

2464

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Explain The Application Of Storage Batteries?

1145

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george phenomenon of synchronous machine

7544

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What is the purpose of stablization resistor in high impedance bus bar protection

2001

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