How can calculate ups battery back up time?
- 25 Answers
- 161938 Views
- Cisco, Cooper, Pronet, Wipro, I also Faced
- E-Mail Answers
Answer Posted / yogesh
UPS backup time= Ah of battery * no of battery/output kva * 130
| Is This Answer Correct ? | 73 Yes | 68 No |
Post New Answer View All Answers
What is creepage distance..... what will be the value for different voltage level
What is dc current source? Differentiate between ideal and non ideal current sources?
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?
what r substations?what r there work?why voltages r incresed and then reduced during distribution of power
Give idea about General Engineering. From which book i can study this topic. Pl. reply me via email. My email is ravi@bhelhwr.co.in, also give the name of book/website, from where i can prepare it.
how can we make cable shedule for controll wiring ? which details must be required for it.?
Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault
What are m circles?
I want to do a mini project. Now I'm studying in 6th semis tor EEE Engineering.
thyristor controlled APFC panel design parameter?
Is there any Electrical supervisor license which gives permit to work whole India rather than individual state??
full form of flry b
why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
what is the criteria for selection of conductor used for ehv ac electrical dischrge
