Answer Posted / bikash

since all the voltage generation are in average and we use
rms quantities for computation. so we need to convert the
average to rms simply by multiplying the form factor 1.11.
thats how the voltage levels are in the multiple of 11.

how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

2278

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How to calculate the input cable rating for 10kva ups (3phase input and single phase output and also 3phase output, battery rating 65Ah)provide the formula also.thnx

2218

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IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?

4144

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armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

2071

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where is core-type and shell-type construction suitable for transformers ?

2093

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Differentiate between ideal and non-ideal voltage sources?

1088

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What is the different between digital phase converter and ordinary phase converter?

1162

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How generator NPS(NEGATIVE PHASE SEQUENCE TEST)TEST WAS DONE? PROCEDURE WITH DETAILS?

2236

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What will happen if i used 11KV earth ht kit to 11 KV / 11 KV cable termination?

1427

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clarify types of motor operated valves and advantages

1902

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what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?

2548

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hi, could someone help me to find a control design for syncronising panel .

1720

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How to work meggar?

1832

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block diagram of 2 ups system connected in hot stand by mode?

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is there any role of power factor with frequency variation? and how we can manage the frequency variation?

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