Difference between ups and invertor

3 Answers  

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what is the current setting for different relay protection for transformer .

0 Answers   Crompton Greaves,

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Multimeter show phase to neutral volt 230 the per phase but phase to phase 415 not show 460 why.

1 Answers   Intas,

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when a hand crancked meggar is used to check most three phase induction motors, how many tests r rquired? Why?

1 Answers  

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Why is copper a better conductor of electricity than aluminium?

5 Answers   AES,

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If a 1.5V,3W torch light bulb is connected in series with a 15HP/11.19KW,230V single phase motor and the combination is connected against a 230V supply and switched on than what will happen keeping all other parameters as it should be A)the bulb will glow normally B)the bulb will not glow C)the bulb will glow with extra brightness D)the bulb will burn out and if a fuse is connected to the above circuit will something happen to the fuse and what about the single phase motor will it be affected? Please explain with derivation

4 Answers  

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What is the magnetic field (coil DC ) of Turbo Expander?

0 Answers   TATA,

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what is invertor supply and raw powersupply

0 Answers  

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i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

0 Answers   SCM,

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What is Surge arrest? How it work?

4 Answers  

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what is mean by D.O. in distribution line poles?

0 Answers  

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why we r used DC megger insted of AC megger?

1 Answers   Adani,

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