Interested to Buy Any Domain ? << Click Here >> for more details...
I have a 600VA UPS for computer only. It holds for
20minutes only.
1. Can it be upgraded for longer period.?
2. Can it be used for one ceiling fan and a tube light? If
yes, how to upgrade?
- 11 Answers
- 41029 Views
- I also Faced
- E-Mail Answers
Answer Posted / ehsan rabbi
u r telling that it holds for 20 mins. But in practice it
doesnt last more than 4/5 mins. does it ? Actually it
depends. A 600 VA UPS running from a typical 12 volts 7.5Ah
battery can handle 600 x 0.8(pf)x75%(eff)=360 watts of load
only. There are many other facts that im not breaking down
right now.
The fact is simply this. U can prolong your backup time by
adding higher ampere-hour battery like 12 volt 8Ah or
maximum 12 volt 12Ah but not more. If u want more backup
u'll need much higher AH rated battery (like 40Ah) and at
the same time u must upgrade your battery charger to a
higher level otherwise those heavy batteries will take
forever to charge fully /partially or whatever. Bottom line
is u just have to spend more bucks not only for battery but
also the built in circuitry mounted with the UPS.
Both the ceiling fan and tube lights(which includes
ballast)have raw power factors (0.6~0.75) That means an 80
watts fan can consume upto 115 watts of power. To drive
those loads u not only need high amps battery but also high
volt-ampere machine (eg. 1200 VA)
| Is This Answer Correct ? | 18 Yes | 2 No |
Post New Answer View All Answers
The principle of switching circuits for different types of batteries in application of storage systems
how u measure/calculate renge of capacitor,capacitor has no any rating tag.what is the theory of measure of capacitons.
I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?
What is routh hurwitz stability criterion?
what is electrical machines
how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.
What are the effects of electrical faults?
Hello sir i m student of gtu .what is idp.
What is Negative Potential Bias
would you please give me any idea about the BARC interview question on electrical? i have an interview on 1st july.....plz hlp me.......its urgent......
A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .
what will happen when the dc supply is given to the capacitor?
please send me the previous year's question papers of jindal GET exams
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
Briefly define and explain the following different types of Pulse Amplitude Modulation (PAM) with some examples. i) 2-PAM ii) 4-PAM iii) 8-PAM iv) 16-PAM v) Quadrature Amplitude Modulation (QAM)
