why do we need a 4th wire in 3phase 3wire transmission line

6 Answers  

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insulators advantage in transformer yard?

1 Answers  

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what is the difference between dropout fuse and horn gap fuse. how to choose between them

1 Answers  

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What are root loci?

0 Answers  

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why ferranti efect occurs on no load only?

3 Answers  

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working principle of generators?

4 Answers   Adani, MahaGenco,

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how to produsing geretor power

0 Answers  

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In case of 3Phase Supply, Voltage R-Earth/Neutral - 220 Y-Earth/Neutral - 220 Z-Earth/Neutral - 220 Total is -> 660Volts Then Why it is said that 3Phase supply is 440

6 Answers   Hindustan Unilever Limited,

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1)which height building required lightning arrester? 2)how to calculate the requirement of lightning arrester? 3)what is the pro instrument? 5)how to test protective relay like overload?earth fault relay?

1 Answers  

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cable tray sizing & selection

1 Answers  

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how we calculate electricity unit ( meter unit.. for knowing how many charges) from on motor load.?

2 Answers  

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When motor stater and roter air gap do big then what will moter.

3 Answers   Intas,

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