dear all, How do i increase UPS (1000VA)backup time ? i
have connected 2 12v wold you please 120 aH battery
externally. ups charge the lead acid battery only 12.7 volt.
backup time only 10.00 minuts and gose off. can any one of
you help me?
Answer Posted / waqasfarooqui22@gmail.com
1 kva ups is not. charging current 120AH battery therefor use to external charger use or calibratIoin. of ups or overload
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.
Purpose of providing neutral isolation panel for parallel operation of diesel generator
What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.
(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?
Define delay time.
Mention the difference between Analogue and Digital circuit?
Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?
What is the difference between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?
Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
What is EHT tariff or Power factor Tariff ????
please send me privious exam's queation papers of section engineer(electrical).
What are the Full Forms of TVM, MTL, CVT ?
Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?
Refernce currents are to be generated using refernce cueernts how can this be done??