Answer / Ravi Rao Gautam

The permissible maximum flux density in a transformer core depends on the core material. For example, for silicon steel, it can range from 1.7 T to 2 T.

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

1 Answers  

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Which lamp will fuse first(1)20(2)40(3)200 three lamps will fuse together

2 Answers   NTPC,

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what is difference b/t ac current and dc current

4 Answers   L&T, Meghana Engineers,

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what is the diffrence between resistive , inductive and capactive load please explain with exmpels?

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Why does capacitor block dc supply?

5 Answers   Bhel,

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why we not used 11kva as a direct our electrnics component.

1 Answers  

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DIFFERENC BETWEEN VOLTAGE AND CURRENT

1 Answers   Wipro,

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What is the advantage of Neutral graunding transformer insted of Neutral graunding Resistance in generating station explain briefly.

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What is protection for single phasing ?

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wat is the criteria we use the diff. relay ?

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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

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high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...

1 Answers  

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