What is the difference between online ups and offline ups?
Answer Posted / raju
In ONLINE UPS, the load is always connected to
inverter output only in both the cases, whether normal
power supply is available or not.
In OFFLINE UPS, Inverter output is connected to load only
when normal AC power supply fails, means when AC power is
available it is directly goes to output.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
determine two methods to find loose connection in operational electrical system?
What is the application of Dyn1 and Dyn11 vector group of transformer?
Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?
On Which Pressure PRV is operated.
A 2083kva AVR was tested, phase to ground shows continuity, what is the implications
why dc is used in control circuits for MV & LV switchgeras instead of ac
How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer
What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?
how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.
what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer
What are the reasons for the parallel operation of transformers?
Differentiate between voltage and current feedback in amplifiers?
How to calculat the ratio of HT\LT in energy meter
what happened when we supply a dc current in dc motor?? can it worked properly?
HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?