how long will take to burst/damage for a CT when secondary in open condition? Experienced: During switchgear testing(Primary current injection test) some of the CT are in open condition, but nothing happen's why?

1 Answers  

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In three phase supply why we use R Y B Colour not other.

4 Answers  

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what is meant by armature reaction & where its happen ?

3 Answers  

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Construction of ac motor?

1 Answers  

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how i prepare for the written test in mahagenco?

2 Answers   MahaDiscom, MahaGenco, Wipro,

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what are problems caused by the pdu in rack server

0 Answers  

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Why 50hz and 60hz frequencies are used by the world, why they are not taking 55hz?

3 Answers  

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why neutral and earth should not be connected on 3 phase 440v/50c/s supply at consumer side. where as on 25kv/ac/50c/s railway traction substation neutral and earth will be connected and track at substation. and track will act as neutral and earth. Reasons for this is needed urgently

4 Answers  

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practically What is power factor

6 Answers  

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how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?

0 Answers  

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how can i improve the power factor in domestic (230v)

0 Answers   Epcos,

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diff b/w normal grounding and resistance grounding

0 Answers  

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