Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks

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what is meant by flywheel and its role in retardation test

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why ohmas low not sutable to transformer.

1 Answers  

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What is meant by Resonance what are the different types of resonance and what are uses of them?

14 Answers   Infosys, NTPC,

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why star point of HT motor not earthed?

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In power generator sets, when they are coverted from 50hz to 60hz, the kva rating after conversion increases. For example, the manufacturer of a perkins 200kva @ 50Hz generator set has mentioned it to become 220kva after converstion to 60hz. What is the relation between the frequency & the KVA rating. Any formula please.

3 Answers  

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How do you protect your appliances from harm in case of neutral failure in a three phase power supply set up.

4 Answers  

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sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

0 Answers   Jindal,

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what is the use of Turbocharger in a gen-set?

3 Answers  

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Detailed working of a diesel generator set ?

1 Answers   Airtel, Honda, Kirloskar,

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for a 33/11kv transformer, after step down what happens to the balance 22kv.

2 Answers  

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What is cogging and crawling phenomenon in motor.

2 Answers   DAE,

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