What is fuction of NGT/NGR using in Generator.

9 Answers  

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What is the differences in phase to phase voltages between star and delta connections of stator?

1 Answers  

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HOW TO CALCULATE THE ILLUMINATION IN INDOOR LIGHTING?

0 Answers   L&T,

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when a hand crancked meggar is used to check most three phase induction motors, how many tests r rquired? Why?

1 Answers  

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Why is the neutral point of a star connected winding of a motor not grounded?

1 Answers  

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Rules and standards of electrical control wiring ?

0 Answers  

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A circuit breaker on detecting fault will a. Open b. Close c. Open and trigger the alarm

2 Answers  

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when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

0 Answers  

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what is the formula to find battery back up of ups?

3 Answers  

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Why the Transformer Nuetral is grounded?

10 Answers   Infosys, Khartoum Refinery,

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what is the opencircuit tes &short circuit test in transformers ,why you need this test, in poen your connecting which votmeter why?

1 Answers  

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Dear Sirs, I am a technical persons.In one of our Electrical Sub- Station, We have installed three numbers of 1250KVA ,11KV/0.415KV Transformer to feed the Factory load. We have found some abnormality. In one of our Transformers the leakeage current from transformer body to earth through earth continuity wire is almost 86 Amp but in other transformer it is (5-10)Amp. where the load current on three phase and neutral are respectively 1360Amp,1400Amp,1370 Amp & 176Amp. So please any technical person help me about the reasons of this situation and how I can rectify the fault. Moreover,I have measured the earth resistance of the Earth continuity wire which is less than 1 Ohm. Thanks Tapas Barua

3 Answers  

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