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Old 08-06-17   #1
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Inverter Help


Hello Friends,

I'm completely new to this Interver world. Previously was on apartment generator backup and now moved to an independant house. Can somehow please help with the best inverter and batteries.

I need 2 fans, 2 tubelights, 1 55inch tv and may be like 2 bulbs in washrooms.

Can someone please guide me by providing some online links for the purchase as well please.
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Old 09-06-17   #2
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Re: Inverter Help

First, read this - https://www.quora.com/What-is-the-di...S-and-Inverter

And if you intend to use your PC on an inverter, then check this post out - Computer Rebooting Problem in Microtek Inverters ?

Now the inverter type you should get is of the pure sine wave variety. Read this for more info - How Sine wave is better than Square wave and Modified Sine wave? - Su-Kam Su-Kam
Microtek, Luminous or Sukam all make good inverters.

As for the battery, a tubular battery from Exide or any other decent manufacturer will do. Check these links for more info on the type of batteries -
Tubular Batteries Vs Normal Batteries
Tubular battery vs Lead acid battery

I would suggest purchasing locally. I am not sure how warranty/servicing would work if you bought them from an online store but mine was purchased locally and we periodically get calls for servicing and have ever since we made the purchase. Plus you can talk to the shop keeper for a better idea regarding your needs.

Which inverter/battery you should get not only depends on the stuff you want to run but also how long you want to run it. An inverter with a higher KVA value will deliver more watts so you can run more stuff but on the flipside, the battery will be depleted that much faster (of course, only if you run more stuff on it).

If I am not wrong, the equation to calculate wattage from kva is (kva x 0.8 = watts).
So 600 kva x 0.8 = 480 watts.
(Since I have never been great at math, I could be pretty wrong here so might want to confirm this with other sources).

My Microtek's a 600 KVA one and can power 2/3 fans and a couple of lights for a few hours. Even my 32" TV works for a while. Of course if there's any kind of gaming load on my PC, then its done in under half an hour. I am guessing a 900-1100 KVA inverter with an adequate battery should be plenty for your setup.

PS : Goes without saying that you should bypass the points where you'd connect your washing machine, fridge, geyser and other heavy duty appliances when installing the inverter.
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Old 09-06-17   #3
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Re: Inverter Help

Thank you so much brother for the detailed info.. Thank you very much
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Old 09-06-17   #4
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Re: Inverter Help

No problem man. Glad I could help.
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Old 1 Day Ago   #5
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Re: Inverter Help

Hi,

I am looking to buy a inverter/battery set and following is my requirement. Just wanted your advice if I've calculated the inverter power and batter backup appropriately. Thanks in advance!

ApplianceWattageHours
Desktop 1548
Laptop 908
Monitor 258
1 LED 208
Cooler 958
Fan 508
Table fan 458

Inverter Power (VA) 479
Battery Backup (AH) 319
Total Batteries (200 AH each) 002

Regards,

Melwyn
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Last edited by melwynm; 1 Day Ago at 03:36 PM.
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Old 12 Hours Ago   #6
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Re: Inverter Help

@melwynm
You are adding your wattage requirements together and summing it up in VA. If you follow the formula W = VA x 0.8 (general value), then you need a 600VA (598.75 to be precise) inverter.

As for the backup duration, yeah, you should theoretically get about 8 hours backup time with 319Ah batteries. The general formula goes something like: Back up Time of Inverter Battery = Battery Volt (12V) x Battery AH rating / Total watts on Load. You might want to double check the numbers before buying though. Just to be sure.

Now, if you only need something to provide enough power so you can save your work and safely shutdown your PC during power cuts, then a good quality UPS should be sufficient.

Last edited by Submerged; 10 Hours Ago at 01:52 PM.
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Old 10 Hours Ago   #7
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Re: Inverter Help

Thanks a ton!
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