PC Peripherals Inverter + Battery for home

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puns

puns

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Requirement : to be able to run a 1 ton AC for 6 to 7 hours and when the AC is off then other appliances like 1 tv with tata sky, 1 fridge, 2 lights, 2 fans and 1 PC with max load of 250 watts. need a fullproof soution.

Budget - not a problem but as less as possible.

Thanks.
 
You need one of those Microtek 1 KVA inverters. Call them up and they will put you through to someone who can provide you a solution and a cost. After that it is your haggling skill if you want a bargain
 
puns said:
Requirement : to be able to run a 1 ton AC for 6 to 7 hours and when the AC is off then other appliances like 1 tv with tata sky, 1 fridge, 2 lights, 2 fans and 1 PC with max load of 250 watts. need a fullproof soution.

Budget - not a problem but as less as possible.

Thanks.
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assuming AC to be 1200 Watts and it's initial surge current to be around 2.5~3 times the normal, you probably need something more than a 5kVA inverter. better get in touch with your local electrician for making a correct choice. bcos this is going to cost a bomb. only someone who has this kind of setup can give a good advice :P
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DigitalDude said:
assuming AC to be 1200 Watts and it's initial surge current to be around 2.5~3 times the normal, you probably need something more than a 5kVA inverter. better get in touch with your local electrician for making a correct choice. bcos this is going to cost a bomb. only someone who has this kind of setup can give a good advice :P

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I got an electrician who said a 3kVA inverter with 4 batteries of 150 Ah - exide tubular will be needed. setup cost is around 55k. is he right with the calculations and what sort of maintainenece costs i am looking at annually / 3 years time.

need some inputs on requirements calculation and which brand of pure sine wave inverter and batteries to pair.
 
That should be just fine and the price also seems quiet good. Ive been using Su-Kam 1.4KV sine wave inverter for past 7 years and no problem as of year. The backup seems to be reducing after 7 years, so changed the batteries which is 2*120 Ah tubular ones each costing 11.5k (23k total). The 55k price for 4*150 Ah batteries plus the inverter unit seems really good. make sure the batteries are new and are of good make. Also there are 200Ah batteries available, which will be around 3~4k additional for each batteries than 150Ah, and it ll give far better backup hours. So <70k for 3kVA with 4 200Ah tubular will be awesome.

About maintenance, you should bother about it for atleast 2~3 years, after that just a checkup of batteries and just refill with distilled water will be required and same has to be performed every 2~2.5yrs.

Also avoid VX450 PSU for the system if used with those inverters :P. VX550 is fine, and all above models from major brands seems fine.
puns said:
I got an electrician who said a 3kVA inverter with 4 batteries of 150 Ah - exide tubular will be needed. setup cost is around 55k. is he right with the calculations and what sort of maintainenece costs i am looking at annually / 3 years time.

need some inputs on requirements calculation and which brand of pure sine wave inverter and batteries to pair.
Click to expand...
 
dOm1naTOr said:
That should be just fine and the price also seems quiet good. Ive been using Su-Kam 1.4KV sine wave inverter for past 7 years and no problem as of year. The backup seems to be reducing after 7 years, so changed the batteries which is 2*120 Ah tubular ones each costing 11.5k (23k total). The 55k price for 4*150 Ah batteries plus the inverter unit seems really good. make sure the batteries are new and are of good make. Also there are 200Ah batteries available, which will be around 3~4k additional for each batteries than 150Ah, and it ll give far better backup hours. So <70k for 3kVA with 4 200Ah tubular will be awesome.

About maintenance, you should bother about it for atleast 2~3 years, after that just a checkup of batteries and just refill with distilled water will be required and same has to be performed every 2~2.5yrs.

Also avoid VX450 PSU for the system if used with those inverters :P. VX550 is fine, and all above models from major brands seems fine.
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the batteries are around 10.5 k each - exide tubular and the inverter is around 12.5k sukam / luminous both have models in this range... wiring etc is free, bargained a lot to get to 55k.

i am purchasing everything new, electrician is just going to set the whole thing up.

ill check up for 200 ah batteries if that make sense in terms of space and backup hours. will update when things happen.

any other inputs guys. thanks.

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after enquiring a bit further, am totally lost now.

it seems couple of people have said a 3kV inverter cant take the load of starting a 1 ton split AC. 5 kv + 8 batteries is totally out of budget.

How do i confirm if a 3kV inverter can take the load of 1 ton split AC ?

HELP !
 
puns said:
[...]after enquiring a bit further, am totally lost now.

it seems couple of people have said a 3kV inverter cant take the load of starting a 1 ton split AC. 5 kv + 8 batteries is totally out of budget.

How do i confirm if a 3kV inverter can take the load of 1 ton split AC ?

HELP !
Click to expand...

yes, thats why I was also of the opinion that you may need more than 5kva. thats for sure because initial surge current need might even go till 2.5~3 times the AC's rated spec depending upon your AC model. so if your local electrician cannot help, you have to lookout for people who are just installing inverters (you can call/search justdial and get local details). I don't think any of our members here have that kind of huge and costly setup.
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I had recently purchases an inverter for myself. What the dude who sold me said that you atleast need to invest a lakh of rupees to be able to run an ac from backup. He is a delaer for exide batteries in Gurgaon and I don't think he had any need to tell me lies. At the same time it is his statement and I cannot gurantee the same.
Regards
Raj
 
AC's like panasonic inverter model do not cause a sudden surge. But gradually increase current on initial switch on. This is due to DC compressor.

1 ton inverter model currently i own (http://www.panasonic.co.in/wps/port...itairconditioner/econinvertersilver/csps12mky) has max approx 5 amps running current. So it does make a difference to choice of inverter depending on AC type.

A good branded inverter should be able to handle its own advertised power. However lesser models should be rated at the twice the required capacity.
 
well looks like a 5 kva inverter is a must ... there goes all the plans for inverter. will update if something new comes up.
 
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