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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why single phase to grd test in HV cable?why not 2 phase at a time?

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What is load shedding?

1 Answers  

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Why do u join toreent power ?

1 Answers  

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if the syncronous machine run at leading pf and as its field curret increased its armature current decreased is machine operate as generator or motor?

1 Answers  

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hoe to test voltage restrained overcurrent relay?

2 Answers  

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IAM GOING TO ERECT THE STREET LIGHT.,, I NEED HOW TO CALCULATE LUX., ILLUMINATION.,AND ALL

1 Answers  

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What is the purpose of reactor.why we used in over head line?

2 Answers  

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What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

0 Answers   Eprosys Engineering Consultants,

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Transformer Specification say 66/11KV, 23/27/35MVA OFDAN,what is OFDAN? we know ONAN,ONAF or OFAF

2 Answers   Siemens,

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watt meter have 4 terminals what there name??? and what theses 4 terminals indicates ?? and why 2 terminals are short circuited??

1 Answers  

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what is slip what is the use of slip?

1 Answers  

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