Answer / ruben

UPS has internal bypass and used if in case there is some
problem within the UPS, ie. overload. the load will be
automatically fed from the bypass circuit. the maintenance
bypass is an external circuit or feeder that is use to feed
the load (bypassing the UPS). this will allow the user to
remove completely remove the UPS from the network/system for
maintenance or replacement.

if ELCB and RCCB connected in series,what wiil be the result

2 Answers   BEC,

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Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

0 Answers   HMK,

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Difference between split ac and cassete ac?

1 Answers  

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What does the a,b,c of 95a,95b,95c relays denotes?

0 Answers   KSEB,

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Can we use 3 phase energy meter for measureing power in 2 phase 440 V phase circuit?

2 Answers  

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you are a electrical student, why are you coming for software job.

4 Answers   TCS,

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how much watts the computer will takes

2 Answers  

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why the earth pin is thicker than other pins in a plug? If it is for reducing resistance, then why the copper earth wire is not so thick as earth pin of socket?

5 Answers   Omax,

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I am new guy as an electrical engr. in a 100MW HFO based power project. I am in operations division. I have noticed from last few days, my supervisor sends the last 24 hours energy generation calculation to my plant manager. I have noticed, he calculated last 24 hour's generated energy differences in KWH then he multiplied it with a multiplying factor 960. for example: total difference =2.685 KWH*960= 2577.6 MWH. but he does not not know what is multiplying factor 960?? can anybody explain it??

1 Answers   Orion,

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WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WHAT WILL BE THE EFFECT IN PRESENT POWER SYSTEM IF WE CHANGE THE FREQUENCY AS YOU SUGGEST ?

32 Answers   L&T, MCL,

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tell me the various standerd of CT ratio

1 Answers   ICA,

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how open delta PT works & what is its construction?

0 Answers  

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