what are the main parts of UPS what is the function of that?
Answer Posted / francis.e
main parts of UPS are REACTIFIER,BATTERIES, INVERTER
Rectifier: converts the AC supply to DC sypply
Batteries: It will be charged by DC supply, and gives the
supply during the supply interruption.
Inverter: It inverts the DC to AC supply.
| Is This Answer Correct ? | 205 Yes | 17 No |
Post New Answer View All Answers
Define damping ratio.
What does the letter CTNM in negative phase sequence relay means?
How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?
What do you mean by the zone of protection?
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
why different series of vfds (like allenbradley)are used in industry ?
During underground cabling in landscape area what did we cover the cable with to prevent the electric shock & protect the cable?
why occ characteristics of generator is also called as magnatization characteristics ?
direction of tarbine& genrator
Why MCCB is Getting tripped sometimes when there is no load in the Midnight ?
Which level of the Transformer oil got dielectric strengh? And why?
What happens if we give the supply to the rotor of induction motor and make its terminal shorted?
what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv
What range of speed can you get with the armature control method of speed control of d.c. Shunt motor?
if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?