Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?

0 Answers  

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Where the excitation is given either stator or rotor in actually in power plants?

13 Answers  

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how to calculate

0 Answers  

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What will be the sampling frequency that reveals the same sampled signal?

1 Answers   CCP,

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what is differant beetween overload current and phase current?

0 Answers   KMJ, Petron ltd,

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Why is the diffrential protection in DG. What if the CT polarity is reversed while connecting for the same type of protection? How polarity can be made ok?

1 Answers  

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What is phase cross over frequency?

0 Answers  

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It is used or not HT cable single core 630 sqmm in LT 3 phase capacitor bank which is used in PCC(power control center).

1 Answers  

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if one of the phase is failed to 3 phase IM. what will happen?

6 Answers  

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what will happen if instead of neutral we use earth wire as return conductor?if we can use ,then why we are not using in our day to day appliances?please justify the answer

11 Answers   NTPC, ONGC,

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What is the normal earth resistance?

11 Answers  

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I need HT sphere gap calibration table. Can any body help me.

0 Answers  

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