Answer Posted / sabale.dnyaneshwar@gmail.com
UPS MEANS UN INTERRUPTIBLE POWER SUPPLY.
IN UPS AGAIN THERE IS 2 TYPES ON
1. ON LINE UPS
2. OFF LINE UPS
IN ON LINE UPS BATTERY IS CHARGING WITH MAINS. THAT MEANS
BATTERY IS CHARGED WITH LOAD & IF MAINS IS GONE IT WILL
COME IN LINE.
IN OFF LINE THRE IS SEPERATE ARRANGMENT FOR BATTERY.
| Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.
how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size
In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem
what is meant by k-rating in isolation transformer?what is k9, k14 stands for?
When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?
PLEASE SEND THE PREVIOUS YEARS QUESTION PAPERS OF RRB JUNIOR ENGINEER-ELECTRICAL
Why an ac systems are preferred over dc systems?
Define cuttoff frequency?
How REF protects transformer alone? explain with diagram.
how to select the isolation tranformer for siemens 802dsl cnotroller
sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason
Operation of isolators.
what is the minimum voltage require to injure our body?
How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.
The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?