what is cogging and crawling

2 Answers  

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How would you supply a single house hold load from a 3-phase supply coming out of a sub-station?

4 Answers  

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What is the difference between a fuse and a breaker?

0 Answers  

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what is DAR test?

2 Answers   Al-Naboodah, ISRO, ONGC,

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why white color LED light is not possible?

1 Answers  

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What is the material used for the core of a high freiquency transformer?

3 Answers   Videocon,

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If short circuit ratio is high is it bad or good for a machine then tell the reason...

0 Answers   Bhel,

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Do power transformers have an Automatic Voltage Regulator (AVR) just like the alternator/generator in a power system?

4 Answers  

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Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.

0 Answers   Gasco,

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difference between turns ratio and transformation ratio?

2 Answers  

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A CT is marked as 10VA 0.2FS in its name plate. What is it? Where it is used?

1 Answers  

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in short circuit. test of a transformer 5 to 10% ofvrated voltage is used why??? if we use rated voltafe then what will be?

1 Answers  

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