Answer / jai sharma

tol r setting should be 80% of tripping current b'cos thermal effect in bimetalic conductor strips starts heating from 80% and then after few 4-5 minutes at 100% trip or actuated

what is ps impedance test

0 Answers  

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When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number

0 Answers   TATA,

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how to select the isolation tranformer for siemens 802dsl cnotroller

0 Answers   Siemens,

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what is the formula to calculate the fault level current for any substation?

2 Answers  

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what is basic difference between the normal tube light choke and electionic choke ?

4 Answers   Amaron,

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In a parallel circuit dc circuit with two resistors, if you know the voltage, amperage, and one resistors ohms, what formula is used to find the second resistors ohms?

6 Answers  

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what is NGR in generator?

4 Answers  

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what is the method to measure the transformer current carrieng capacity in three phase.

1 Answers  

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why 1.7Uo for HV cable Hi pot test?IE standard why?

0 Answers   ABB,

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Why neutral shows voltage with earth ?

2 Answers   MRF,

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from which formula we select a capacitor rating?

4 Answers   Suzlon,

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What is the difference between bundled conductors and double circuit?

1 Answers   Power Grid,

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