Interested to Buy Any Domain ? << Click Here >> for more details...
what is the difference between on line & off line UPS
- 3 Answers
- 5773 Views
- I also Faced
- E-Mail Answers
Answer Posted / myo
There are two type of ups 1. semi-auto ups which is structured by solid relay .when the ac power supply is out,it change to dc supply and convert the ac out put. It has off period time is 20 milli second.so, this type is called by off line ups. 2, is fully auto ups which has structured by electronic switching device which has not off time period. so, this type is called by online ups.
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?
Why using synchronising methed in DG's sets?
Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?
there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit
where does 22kv line starts
we need a ntpc previous papers
What type of fittings and electrical accessories can be install in radiation area ?
WHAT IS THE TOTAL POWER GENERATION IN CHHATTISGARH?
Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?
In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?
In a carnot engine with an efficiency of 40%, the heat rejected to the sink at 27 C is 60 kJ, then the heat supplied in kJ to the engine by the sources is
block diagram of 2 ups system connected in hot stand by mode?
Which level of the Transformer oil got dielectric strengh? And why?
How to improve fuel cell in a distribution system?
What is the simplest formula to calculate the rotor diameter of a synchronous generator?
