HT to run entirely on UPS

[ItsMe]

Hi,

For past couple of weeks, I am facing frequent voltage fluctuation which my stabilizer is managing by regular tripping. However this is leaving me in a desperate situation, whenever I start a movie. I was thinking whether I could use an online inverter dedicated for my HT, so that I can overcome this issue. The plan is to buy an inverter, keep it charged and run my HT from it whenever I want to watch a movie.

My setup is as below
Onkyo reciever, Acer projector, Pioneer BR player, xbox 360, Asus media player. Since it may be an overkill, I may connect xbox directly to mains
I also have 2 APC UPS now, one connected to PJ and one to receiver, which hardly gives me 20 mins. I already have a 1KVA home UPS, which is a solar non-sine wave model, and will not bear the HT load along with other household load.

Has anyone done anything similar? If yes
- What is the minimum KVA which I may need to chose?
- Budget?
- Can I utilize present UPSs anywhere?
- Any different solution for this issue?
- Can I keep an inverter in a closed HT, with minimal air circulation ?

Thanks

 

[Hassan Khani]

I have been using a 3KVA online UPS with 15 minutes backup for HT and Stereo setup. I needed 3KVA since my stereo AMP is rated high wattage. In your case 2KVA should be sufficient assuming you are running an AVR + TV + DVD player.

I choose for only 15 minutes backup to avoid external batteries and cost. 15 minutes was enough to switch off the system properly during power outage as well as voltage handling voltage fluctuations.

For 3KVA it costed around 30K.

 

[ItsMe]

Thanks @hassan, my need was not a 15 min backup, but something which can give me atleast 5 hr backup as my plan is to run the HT entirely from an inverter/UPS.

 

[krishnamurthy]

It would be astronomical cost for a 5 hr backup for an inverter. For 10 mins backup, i paid 20k.

 

[Viki]

I run two online APC 1 KVA UPS with short inbuilt battery (15 mins) for protection only. The AV loads are split over these two. This is backed up with a 3 KVA Sine Wave Inverter with 6 truck batteries, giving me 3 - 4 hours run time on power outage, while still running home fans and lights (LED).

In your situation, I think simply adding an Inverter with high battery back up will give you what you want.

 

[blackscorpio]

I run an EATON 3kVA online UPS 8*52AH battery's, purely for AV(5.1 HT, 2.1 Stereo, one NAS, Desktop, OPPO bluray, XBOX) equipment only, I get over 6Hrs back up. If I remember right it costed me about 60K, bought 4years back.

May be a little overkill, but I wanted to protect my 55inch Plasma sufficiently and enjoy it as well.

 

[sam9s]

I had a post here, suggesting Microtech online UPS that I have .... was that deleted ??? thats strange .... why would that be deleted ....

 

[ItsMe]

Hi Sam, can you share details once more if you dont mind?

 

[sam9s]

Oh man I wrote a huge post ... cant remember exactly, but the jist I can share again .... damm the admins or who so ever deleted my post.

I have a microtech 1.5 KVA square wave inverter, for entire house. My Home theater is, connected to my Microtech Online 2 KVA UPS (2 KVA 72V Online UPS Microtek-Inverter.com), which is in turn connected to the inverter. basically, I have mu Online UPS sitting between my HT and my Inverter. I have another APC 800VA normal desktop USP for all my networking devices and TATA Sky. My online UPS is switched off always, I only switch it on when I want to watch a movie. It takes care of all bloody fluctuations, low voltage and when the power comes and goes, the change over time the inverter has, also is taken care of by my UPS. I have a save and satisfying movie watching.

The inverter is connected to high end long life EXIDE Invatubler batteries, which gives me 4-6 hours back up on full load (which is never the case) and 12 hours on just my room powered (which includes my networking devices, NAS, TV, Tata Sky, a FAN and 4 ceiling LED lights). Rest house is also connected but I make sure only my room is powered on if I know the electricity is going to take the time to come back.

Usually My entire house runs on it, as the light mostly comes back in 2-3 hours max at one point of time (June July months) and the batteries are more than capable of giving 4 hours easily even if more than 1 KVA load is on them full time.

PS forget the price, 3 years back I purchased the UPS for 20K including the batteries (6 72 Ah) so it was a sweet deal at that moment. Now its a bit expensive.

 

[HTuser]

I have 2.2KVA Luminous (Cruze Model) Home Inverter/UPS (its a line interactive UPS) for my flat.

Initially I was planning to buy 3KVA APC online UPS for my HT but the cost was coming around 60K.

I dropped the plan and connected HT to the inverter. Some time the AVR was tripping when power fails, but there was no problem when power comes back. Other devices (TV, STB, NAS, BD Player) etc. were not detecting any problem.

I had one small PC UPS at come, I connected that before my Onkyo AVR.
Now there is no problem when power goes off and comes back.

My 2.2KVA UPS is connected with 2 numbers of 150Ah batteries, hence I am getting battery backup of more than 12 hours.

For the safety of all HT devices, it is recommended to use Pure Sinewave Online UPS, if you can afford.

Otherwise connect critical components in online UPS and balance in Inverter/Home-UPS.

Most of the Inverter/Home-UPS got inverter mode and UPS mode. In UPS mode it will work on battery when input voltage is lower than 180v. Hence many dealers won't recommend UPS mode as the users will start complaining problem with Inverter/UPS.

 

[sud98]

Hi,

For past couple of weeks, I am facing frequent voltage fluctuation which my stabilizer is managing by regular tripping. However this is leaving me in a desperate situation, whenever I start a movie. I was thinking whether I could use an online inverter dedicated for my HT, so that I can overcome this issue. The plan is to buy an inverter, keep it charged and run my HT from it whenever I want to watch a movie.

My setup is as below
Onkyo reciever, Acer projector, Pioneer BR player, xbox 360, Asus media player. Since it may be an overkill, I may connect xbox directly to mains
I also have 2 APC UPS now, one connected to PJ and one to receiver, which hardly gives me 20 mins. I already have a 1KVA home UPS, which is a solar non-sine wave model, and will not bear the HT load along with other household load.

Has anyone done anything similar? If yes
- What is the minimum KVA which I may need to chose?
- Budget?
- Can I utilize present UPSs anywhere?
- Any different solution for this issue?
- Can I keep an inverter in a closed HT, with minimal air circulation ?

Thanks

Based on your load, and a quick back of the envelope calculation, Receiver 600W, Projector 300W, xbox 300W, rest 100W. So a 2kva should be fine.

If voltage fluctuations is the problem, then the solution should be a servo stabilizer or CVT or online UPS in increasing order of quality and cost. Inverters are not generally recommended for HT components.

I bought a 3kva online UPS from APC for around 55k; 2kva is around 40k I think. But this comes with only 15 min backup. Protects from all kinds of fluctuations, plus runs for enough time for the switchover to a generator.

I had a friend who bought I think a 7kva online UPS from luminous for 50k. I guess the difference is in the specs and whether they are doing a complete double conversion to ensure pure sine wave. In a lot of other products you get a simulated sine wave which will damage in the long run.

So, go for a servo stab if you want to protect from voltage fluctuations which are occasional in nature, go for CVT if they are very frequent and an online ups if you can afford plus want backup included.

 

[Plex]

Hello ,

Upgrade your solar invertor to 2 KV and add 150 Ah battery will be sufficient

 

[sam9s]

Some time the AVR was tripping when power fails, but there was no problem when power comes back. .

That! is the reason I went for online UPS, even with a proper Home UPS inverters the switchover time trips the AVR, which was too dangerous, better to spend one time than to regret later. With my online UPS, whatever happens at the background, my HT equipment get constant, uninterrupted clean power supply