Interested to Buy Any Domain ? << Click Here >> for more details...
What is the difference between online ups and offline ups?
- 44 Answers
- 217275 Views
- Electrical Tech, GMR, Gravity India, HCL, Indus Towers, NIT, Pyramid, Techno Electric and Engineering, UBS, I also Faced
- E-Mail Answers
Answer Posted / ghanshyam pandey
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 ? | 241 Yes | 26 No |
Post New Answer View All Answers
If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?
1.WHAT IS A SMART CAPABLE DB ( DISTRIBUTION BOX) ? 2. HOW TO DECIDE THE TYPE OF DB TO BE USED ( RECESSED/ PLUG TYPE/ SMART ETC ETC? 3. WHAT IS MILLENEUM BUS BAR USED IN DB? 4.DIFFERENTIATE MCCB AND MCB.
Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.
Q: How to calculate Transformer losses , tell us by Formula.
How to protect a Dosing pumps/any sensitive equipment (single phase) from surge protection inside a food factory.
what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?
how single phase preventer works ?
What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.
What is the distance between body earthing and neutral earthing.?
What is formula calculation size cable wire ?
how does directional relay work incase of ac ?
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?
what is difference between line differential and transformer differential?
For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?
