In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

0 Answers   RRB,

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In Power cable specification what is U0/U and Um.

0 Answers  

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Why we use a H.T. Fuse from a thick wire, on other side we use high rating of cables? & Why we use less Sq. mm Cable on H.T. side , on other side we use Large Sq. mm cable?

1 Answers  

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why we not connect the 12 V batteries in parallel to get the more backup supply for an UPS ? wheter off line or on line UPS ?

2 Answers  

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HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER

0 Answers  

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what is the function of choke and starter in a tube light??

2 Answers  

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Tesla is the unit of which parameter?

4 Answers   Ecil,

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What is the most important precaution in any experiment with d.c. Shunt motor?

0 Answers  

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what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..

0 Answers   Sony,

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what is excitor response of an excitor?

1 Answers  

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what is RTD? what is THERMOCOUPLE? What is difference between it?

2 Answers   Bhel,

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what is electricial and mechnical interlock.

9 Answers   Control Dynamics, EFS, HP,

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