what is Over current, earth fault (O/C+E/F) ?

2 Answers  

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can we load Power capicitors on DG sets?

14 Answers   Neptune, Nimbus, Westin,

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why aggregate is placed all around substation ground.

1 Answers  

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what is the difference b/c choke and ballast?

1 Answers  

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load increase means 1 resistance increase 2 load resistance decrease 3 current increases through load 4 none of these

3 Answers  

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Is reverse power relay of generator operate due to voltage variation problem? please clearify.

1 Answers   Birla,

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in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

0 Answers  

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What is the relation between frequency and motor rpm?

0 Answers  

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The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.

0 Answers  

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why impedance test in power cables?

1 Answers   CSE,

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can you any one give exact mathematical relation between AC current and DC current?

0 Answers  

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How to calculate the size of cables (all minium/copper) for a particular load

1 Answers   BSL, Galaxy Power System,

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