Best 1200 VA Pure Sinewave UPS in the market?


#1

hi

whats the best pure sine wave 1200va ups ?

today i serached the market (DAV college road rawalpindi). and found one by HEC for 14500 . it claimed to be 1200va and the shopkeeper said that alot of call centers use this one as it doesnt causes humming sound in the communications..

few other models were deluxe and prolink ..

are they realy sine wave ? (1.2kva)

i want a ups/inverter that doesnt restarts the pc and causes minimum damage (in case of inverter )

also are there any graphs on this forum about the output of some commonly available upses ?

any validation of the claims made by these brands ?


#2

Claims canot be validated unlesstested properly, which is unfortunatkley not possible for every model available in market

reliability comes form repeated user reviews and load comparisons.

from most major brands available in market, APC and Cyberpower are most highly rated for reliability..Inverex and Homage are 2nd best and more afordable options than cyberpower.

VA doesnot mean Watts.. watts depend on power factor.. so check the watts before you buy so you donot buy an underpowered product..

for a simple layman example., there are many 3000VA models which may be 2200 Watts, 2400 Watts or 2700 watts. .. this also defines the efficiency...


#3

Thanks bro.

There are few that are too common with common people. I thought that there would be few proper tests and graphs of them.

Like 2 to 3 models of homage would be hit same would be b the case with inverex so in all there would be at at most a dozen products. There at should be some tests done on them. At minimum a graph of their output to indicate their sinusoidal behavior.

Also bro what about the hec model ups? They claim it to be pure sine wave and are also saying that most call centers are using it. Can someone give any review of it?

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#4

these are the pictures of the hec pure sine wave inverter any idea how is it ?

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IMG_20140118_154235.jpg

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IMG_20140118_154317.jpg


#5

APC and Cyberpower and homage do have their outputs tested, Signnode had some threads about them with graph on the waves.. use search ..

APC and fujitsu have the cleanest output, but even almost sine wave does no major harm..

dont know about these chinese invetrers.. almost all of them are same.. if you are looking for something cheap, then powerbank is an option from hafeez center, 1st floor near PoP office..they give warranties..

what is your buget and wattage requirement and what capacity batteries are u planning to use..


#6

[quote=“farhan_ds, post:5, topic:20694”]

APC and Cyberpower and homage do have their outputs tested, Signnode had some threads about them with graph on the waves.. use search ..

APC and fujitsu have the cleanest output, but even almost sine wave does no major harm..

dont know about these chinese invetrers.. almost all of them are same.. if you are looking for something cheap, then powerbank is an option from hafeez center, 1st floor near PoP office..they give warranties..

what is your buget and wattage requirement and what capacity batteries are u planning to use..

[/quote]

budget for UPS and battery is 25k max and need 800 watts . and i do not want my pc to be restarted .

is the cyberpower this one http://www.cpsww.com.pk/products/inverters.htm ? i thought its local brand ?

my pc consumes 150 watts (CPU + 17 inch hp CRT). usijng the cheap chinese analog watt meter . my pc (Dell 755 desktop, 8gb ram,1tb hdd , 350gb hd , ati 2400 pro, consumes 80 watts on normal usage... again according to the elcheapo chinese watt meter.(bought from college road..its same as ijaz bro has.)

and crt monitor consumes 70 watts. (later i will replace it with 19inch lcd)

also bro i have been frequenting this site and have not been able to find waveforms of local ups/inverters posted on this site or some other site... strange .. @ijaz bro how difficult a task is it ?


#7

There have been testings done.. testing requires an oscilloscope for measuring wave forms.. not everyone has access to it

if that is all your requirement, your best option is a Used APC 1400VA in ur buget.. its 980 Watts, and pure sine wave, and decent charging rates of 14-15 amps,..will not restart ur pc at all.. it is purely designed for PCs and servers and has AVR as well to protect from voltage problems..

you can get it from mall road from reliable suppliers..


#8

Is this apc ups in new or used? I live in islamabad any good supplier in islamabad?

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#9

APC new cost over 80k... the same unit can be had for around 14-16k in used.. we have installed over 200 APC units in past couple of years and even using them in our house from a long time..with APC our batteries last atleast 2 years or more before changing, as compared to hardly 1 year with other local UPS

Dont know about isb.. but do know reliable resellers in lahore who may be able to ship to you in ISB..


#10

@farhan sir can u send me number of person who is reliable to purchase 3000 va xl model (2700w) model in lahore...Also can u tell how much energy (watts) does inverted needs to charge batteries for example 4 batteries of 150 watt each attached to this inverted ....i need to knw so i can see wheather my generator can charge it or not ... thanks


#11

i am not sure about running from generator.. the XL charges at 20amps flat and often a dead battery upto 22-223 amps as well.. trickles down to float which keeps batteries in fit and tip top condition for long time..

enerdy is dependant on formula of volts x amps, but since battery charge at an inverse rate from highest to lowest value, energy doesnot apply so easily..

consider 15amps x 48V and you may get a reasonable idea..its usually the highest watts required, usually it is a lot less..it stops charging after batteries are full

Check PM..


#12

bro farhan what about the above hec ups ?

market guys says it is pure sinewave and call centers use it. as it doesnt creates humming sound in mics/headphones.

is it good brand ? i am inclined towards it.


#13

[quote=“jhagra, post:12, topic:20694”]

bro farhan what about the above hec ups ?

market guys says it is pure sinewave and call centers use it. as it doesnt creates humming sound in mics/headphones.

is it good brand ? i am inclined towards it.

[/quote]

May bro Ijaz reply this ? :D

One of my friends is using these HEC UPS in big quantity. He is a technical guy and he is well satisfied. So based on his satisfaction, I can say HEC might prove an improvement over other Chinese brands.

How much is the price and for which size (VA) ? Is it 24V DC model ?


#14

Thanks bro ijaz.

It was 14 k for brand new 1200va. It’s 12v. I saw few customers bring their faulty ups to shop for repair and the repair was just a replacement fuse. They were using it from the past one year.

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#15

[quote=", post:13, topic:20694"]

May bro Ijaz reply this ? :D

One of my friends is using these HEC UPS in big quantity. He is a technical guy and he is well satisfied. So based on his satisfaction, I can say HEC might prove an improvement over other Chinese brands.

How much is the price and for which size (VA) ? Is it 24V DC model ?

[/quote]

HAHAAAAhh... :D LMAO..

Bro ijaz to the rescue, bro..!!!


#16

@ijaz what sort of ups is the hec one ?

is it online ? line interactive ? standby ?

also farhan can you comment the same about cyberpower,homage,inverex,powerbank ?


#17

powerbank is a locally contracted chinese ups, which does work.. you can see the same casing and box by name of twister in market, same which happened to vortex brand..people just put new sticker on it and started selling...cz it works.

Most ups are not online.. Online UPS are very very specialised and epxensive and not for home use, as they are meant for data critical servers in very big chains.. they also require quality dry batteries as our wet ones would not last much with them due to the way they work..

Cyberpower is a reputable brand, but much more expensive for what thye feature.. also my main beef with them is the low powerfactor.. energy wastage at high prices..

Inverex is nearly in the same league as cyberpower'

about homage , Bro ijaz can tell better as i have had not much experience with them, and there are mixed reviews about them.. some say new 2013 models are excellent, some say previous ones were better.. problems with pc restarts..

If something takes too long to decide, then you probably dont need it, or are unsure if you need it...

BUY SOMETHING ALREADy.. :angry: :angry: :ph34r:

PS: Just kidding :P


#18

[quote=“farhan_ds, post:17, topic:20694”]

powerbank is a locally contracted chinese ups, which does work.. you can see the same casing and box by name of twister in market, same which happened to vortex brand..people just put new sticker on it and started selling...cz it works.

Most ups are not online.. Online UPS are very very specialised and epxensive and not for home use, as they are meant for data critical servers in very big chains.. they also require quality dry batteries as our wet ones would not last much with them due to the way they work..

Cyberpower is a reputable brand, but much more expensive for what thye feature.. also my main beef with them is the low powerfactor.. energy wastage at high prices..

Inverex is nearly in the same league as cyberpower'

about homage , Bro ijaz can tell better as i have had not much experience with them, and there are mixed reviews about them.. some say new 2013 models are excellent, some say previous ones were better.. problems with pc restarts..

If something takes too long to decide, then you probably dont need it, or are unsure if you need it...

BUY SOMETHING ALREADy.. :angry: :angry: :ph34r:

PS: Just kidding :P

[/quote]

thanks dear

made up my mind ..

will buy hec 1.2kva.. however if pocket permits will buy 2kva cyberpower (or something by cyperpower close to it) but i think its in 24volts setup .. so if i go this way please recomend some batteries as well dear farhan.

my requirements do not exceed 600 watts at the moment . but may increase after 3-4 months.


#19

Everyone`s battery power requirement will always increase.. ALWAYS.. getting the biggest battery you can afford is the best and only solution

also, it is always, always, ALWAYS better to get the 24V than a 12V setup, and even better to get 48V instead of 24V.. ijaz will back me up on this..

it would be much wiser to get a better ups now, and 2 smaller batteries instead of a 12v ups and one big battery.

just saw pics, the 1.2KVA is only 700W,, thats worse than 0.6 PF.. 0.58 to be exact.... that is very low efficiency 50% ...and a lot of power wastage in both charging batteries and getting backup from them.. a quality UPS is .8 PF..the best ones are 0.9 PF.... 0.7 is bare minimum.. but 0.6 is just plain low..


#20

[quote=“farhan_ds, post:19, topic:20694”]

Everyone`s battery power requirement will always increase.. ALWAYS.. getting the biggest battery you can afford is the best and only solution

also, it is always, always, ALWAYS better to get the 24V than a 12V setup, and even better to get 48V instead of 24V.. ijaz will back me up on this..

it would be much wiser to get a better ups now, and 2 smaller batteries instead of a 12v ups and one big battery.

just saw pics, the 1.2KVA is only 700W,, thats worse than 0.6 PF.. 0.58 to be exact.... that is very low efficiency 50% ...and a lot of power wastage in both charging batteries and getting backup from them.. a quality UPS is .8 PF..the best ones are 0.9 PF.... 0.7 is bare minimum.. but 0.6 is just plain low..

[/quote]

[quote="farhan_ds, post:19, topic:20694"]

Everyone`s battery power requirement will always increase.. ALWAYS.. getting the biggest battery you can afford is the best and only solution

also, it is always, always, ALWAYS better to get the 24V than a 12V setup, and even better to get 48V instead of 24V.. ijaz will back me up on this..

it would be much wiser to get a better ups now, and 2 smaller batteries instead of a 12v ups and one big battery.

just saw pics, the 1.2KVA is only 700W,, thats worse than 0.6 PF.. 0.58 to be exact.... that is very low efficiency 50% ...and a lot of power wastage in both charging batteries and getting backup from them.. a quality UPS is .8 PF..the best ones are 0.9 PF.... 0.7 is bare minimum.. but 0.6 is just plain low..

[/quote]

damn it if thats the case just tell me which 24volts 2kva +- cyperpower should i buy ? and whats the approx price ? electricity prices are already sky high and this much power wastage is intolerable. recomend me some batteries with that 24volts setup and 2kva cyberpower so that at least i am able to have 700 watts run out of it assuming 1 hour loadshedding after every 3 hours.(ideal case loadshedding LOL)