what is the difference between earth and unearth cable?

1 Answers   Essar,

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What is master trip relay? How does it work?

1 Answers  

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i am confused about generator. i have generator of 380 KVA that is 304 KW by that formula KW=KVA*0.8... then by this formula I=KW/V*1.732*0.8 the amperes are 528.673. so that is the load which i put on one phase of generator or this is total 3 phase load on Generator.......

3 Answers   Haliburton,

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what is active network?

2 Answers  

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what will happen if the field and armature both are made to rotate in a synchronous machine ?

4 Answers  

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We use MCCB not MCB for motor starters because MCCBs has capablity to drawout the motor starting current which is 5-6 times the full load current of motor for 1sec. Then why we use SDF in starter panel means MCC panels. Pls reply if any one knows this answer.

1 Answers  

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What is reason to get a power factor nearly zero in resistive loads

2 Answers  

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According to ohms law voltage proportional to current, then why should current rating is low with high voltage rating in transformer?

5 Answers   KEC,

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What are the protection schemes used for protection of transformers ?

3 Answers   Engineers India Limited,

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What is the measuring instrument of magnetic flux density?

2 Answers   CSEB,

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advantages & disadvantages of Lagging and leading power factor .

0 Answers   KMSC,

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explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.

0 Answers   MPPGCL Madhya Pradesh Power Generating Company Ltd,

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