Interested to Buy Any Domain ? << Click Here >> for more details...
How can calculate ups battery back up time?
- 25 Answers
- 168687 Views
- Cisco, Cooper, Pronet, Wipro, I also Faced
- E-Mail Answers
Answer Posted / chesda
T = (N.Q.eff.PF.V)/Load
T : Backup time [h]
N : Number of batteries [Nos]
Q : Batteries charge [AH]
eff : Inverter efficiency [%]
PF : Load power factor
V : Batteries voltage [V]
Load : Connected load [W]
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Where can I get CPWD electrical specifications & Shedule of rates? Please help me
What are the common sources of energy?
Briefing the effects of ASR and ACR of a double closed-loop speed regulating system.
State thevenin’s theorem?
use of PIR in ehv breaker
wat is meant by PX class in ct?
How much load can be taken for chiller from 1500 kva transformer
how to commissioning the genset with amf panel?
Differentiate between digital phase converter and ordinary phase converter.
what is the meaning of the symbol << >> put in transformer drawing
how can i find cable size from current rating?
For high frequency application we use which transformer?
in 6.6 kv vaccum circuit breaker vaccum bottole vaccum capacity ????
I WANT YHE TECHNICAL AND ELECTRICAL SPECIFICATIONS OF 2x4MW 11KV 2x10MW 11KV 2x25MW 11KV 2x100MW 11KV HYDEL POWER PLANT i.e PROTECTION SYSTEM,MONITORING,CONTROL SYSTEM,GENERATION,SYNCHRONISATION,METERING PLEASE SEND THE DETAILS TO MY MAIL ID SPRAVEEN_222@YAHOO.CO.IN
Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above
