Answer / s.jayan

There are two by-pass systems, One is Static By-pass and
another one is Manual By-Pass. Static By-Pass works
automatically and Manual By-Pass operates only manualy.

Answer / asif

yes we have just 2 bypass auto and mannual when we use the
word ups it means auto matically but when we use dc charger
we can oprate mannually

Answer / shiv

There are two systems bypass one is auto and next is
manually.Which work the auto systems operate the self main
ups and manually not operate the non self so that any
costumer supporting the help.

Answer / muchha mondal

in online ups system has two bypass one is static bypass which is work automatically when inverter off or any fault in inverter ckt the load is transfer to static bypass without interrupted, and anather is manual or maintanance bypass.the maintanance bypass use only for maintanance purpase it should be always off when ups working normal condition.

What are the advantages of skewing of cage rotor conductors?

0 Answers  

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what are the materials used in HRC fuse

3 Answers   Bhel,

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Why in India distribution transformer are connected in Dyn11 when we know capacity of v-v connection can be increased by adding only a single transformer?

1 Answers   CSPL,

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why we use star connection on the primary side of a transformer?

5 Answers   DRDO, TCE,

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which connection is there in a rotor of the motor

2 Answers   All Trades Electrical, HAL,

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I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

0 Answers   Siemens,

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HOW to speed control of induction mototr using scalar control

3 Answers  

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Pl.brief me any electrical major fault you have rectified.

0 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 effect of unbalaced load -- say R 15A, Y 25A, B 10A

4 Answers   TransWorks,

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What is instrumental error?

0 Answers  

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no of rotrs poles in salient pole synchronous machine

3 Answers  

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