directional over current relay when acted & how it works

3 Answers   NCC, ThyssenKrupp,

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PLease anyone can tell me CTUM-15 specification?

1 Answers   Gilbert Maxwell,

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plz send me Bhel, Mahagenco, sbi previous exam paper for electrical engineer on my email-id kambali_smita@yahoo.co.in

0 Answers   Bhel,

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What are interpoles and commutation windings?Why r they used?

1 Answers  

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what is ten delta test? what is the significanse of it

1 Answers  

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what is S.T?specify the range?

2 Answers  

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WHY BREAKER ARE USED IN SUBSTATIONS?

0 Answers   Fedco,

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what solid earthing means?

3 Answers  

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can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?

0 Answers  

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What is the difference between switch gear and control gear ?

2 Answers   QU,

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A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

0 Answers   VECL,

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After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.

0 Answers   KSEB, L&T, Siemens,

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