UPS battery Back time = no.of Batteries * Ah of the Battery /
output KVA * 130 ? what is the 130 means ? can any one help?
because all are using this formula how its came 130?
- 2 Answers
- 5105 Views
- I also Faced
- E-Mail Answers
Answer Posted / k.prakashchandra
Ah*voltage /1000=stored energy in Kwh = back up time in
hours * load in KW. Here instead of load, rating of
inverter is given in Kva. So with load at 65% 0f inverter
rating or at 65% of stored energy, the above formula nearly
holds good
| Is This Answer Correct ? | 5 Yes | 3 No |
Post New Answer View All Answers
The simple way of finding the leakage quantity and % in compressed air distribution system
According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor
what is the maximum temperature rating of a thhn insulated conductor?
ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?
transformer phasor diagram under load explain it?
1hp= how much rpm
explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?
Write the force balance equation of m ideal mass element.
I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.
What is bode plot?
How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?
what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please
What is the simplest formula to calculate the rotor diameter of a synchronous generator?
What is minimum phase system?
After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.
