what is the diff between earth leakage relay and earth fault relay?

7 Answers  

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Auto transformer starter gives the same effect as star/delta strater if its turn ratio = A 0.5 B 0.67 C o.66 D 0.577

1 Answers  

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why power factor is important?

6 Answers   Dalkia, MGC,

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what is iron loss?

4 Answers   RRB,

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Brief function of stepper motor

1 Answers  

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What is the measuring instrument of magnetic flux density?

2 Answers   CSEB,

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what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..

0 Answers   HPCL,

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we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?

0 Answers   Afflatus Grauver Pvt Ltd,

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what is subtransient , transient and steady stateac components

0 Answers  

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In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?

0 Answers  

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What is difference between Harmonic and Non harmonic Capacitor Bank?

0 Answers   TATA,

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What is the difference between online and offline UPS

1 Answers  

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