What is the one main difference between ups & inverter ? And electrical engineering & electronics engineering ?

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what are ABCD curves in MCBs and how we observe that curves?

2 Answers  

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Why the transformers are rated in KVA ? in new view

3 Answers  

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what is the difference between isolator and circuit breaker

3 Answers  

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What does Transformer vector connection Dy11y5 means?

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1 Answers   Exide,

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what is dc system? how getting pulse from rectifier?

1 Answers   ETA,

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Sir if i have 2kv ups in which 17ah 8 battries load 600watts how much back up time i get and if i put 6kv ups with the same no of battries same amp can i get more back up time please give reply exactly what is the procedure to calculate back up time for different kv,s

3 Answers  

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10Hp, 3-phase, 415v, 50Hz induction motor. The above motor is to run on Star-Delta connection, so how do i make following hardware selection 1) MCB, 2) Contactor, 3) Wire Gage (Depending on P-P current or Line Current), 4) OLR, Please tell in detail how to do the above, so as to get the ans. of it even if the Hp rating changes.

1 Answers   Engro,

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what is neutral?

2 Answers  

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after parallaing two generators current is shooting up in both the generators.for ex: load is 400 kw..after paralling and load sharing current in running gen is approx 900 amps and incoming is 750 amps which is too high when trying toshift the load current in incoming gen is coming more than 1300 amps and both getting tripped and making blackout..

3 Answers  

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what is a reactive power? what is the relation with power factor?

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