What is the difference between online ups and offline ups?
Answers were Sorted based on User's Feedback
Answer / vijay
on line ups have static switch.so it have no fluctuation.it continuous work on power/off power condition.load connected to inveter.
off line ups 2000mamp fluctuation.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / shubham choudhary
In online ups load take supply from ups throughout wheather supply is turned on or off and main supply is always connected to the ups but in offline ups the load is first connected to the main supply and when the main supply goes off then the load is transfered to the ups.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / rajat sharma
online ups works on desktop pc
while
off line ups works on laptop only...
| Is This Answer Correct ? | 34 Yes | 243 No |
pls define kvarh
Which supply is using for train AC or DC & what is the voltage????????
I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.
what is induction motor
why in an electrical lab a bulb connected to supply goes off slowly when the main supply is switched off?
In my home i am getting too much electricity bill (more than 4000) but I am very much sure that we are not consuming that much. How i can check this ?
what happens in the short circuited secondary transformer,if the resistance of the short circuit is increased gradually?
What about Reactive power.and role of that one?
1.Defination of Graund earth and neutral 2.
WHY IS RESTRICTED EARTH FUALT PROTECTION NEEDED?? WHY CANT DEIFFERENTIAL PROTECTION SUFFICE???
what are the possible reaons & remedies if resistance of NGR getting heat up
Which of the following loss varies with the load A hystresis loss B eddy current loss C copper loss D core loss
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)