« previous next »
Pages: [1]   Go Down

Author Topic: ups mod  (Read 1551 times)

0 Members and 1 Guest are viewing this topic.

windspeed

  • Full Member
  • ***
  • Posts: 105
ups mod
« on: January 31, 2010, 03:09:39 PM »
My KIPOINT 1600 watt ups is a bit of a dog in standby the fan stays on all the time without any load, would it be worth disconnecting the fan or putting in a thermostatic switch it never runs anymore than half its rated output

the ambient air rarely goes above 70


Windspeed

« Last Edit: January 31, 2010, 03:09:39 PM by (unknown) »
Logged

Jon Miller

  • Sr. Member
  • ****
  • Posts: 316
  • Country: gb
    • Otherpower UK
Re: ups mod
« Reply #1 on: February 01, 2010, 12:34:40 AM »
put a thermostat on it as under load the transformers do get hot.


UPS is good for backup and are hard to kill, worth keeping for stand by if nothing else.

« Last Edit: February 01, 2010, 12:34:40 AM by Jon Miller »
Logged

bob golding

  • Hero Member
  • *****
  • Posts: 691
  • Country: gb
Re: ups mod
« Reply #2 on: February 01, 2010, 06:13:58 AM »
get a  ultra low noise fan. i did that on mine and it made a lot of difference.
« Last Edit: February 01, 2010, 06:13:58 AM by bob golding »
Logged
if i cant fix it i can fix it so it cant be fixed.

ghurd

  • Super Hero Member Plus
  • *******
  • Posts: 8059
Re: ups mod
« Reply #3 on: February 01, 2010, 07:06:44 AM »
"a bit of a dog in standby the fan stays on all the time without any load" means it uses too much power in standby?

I doubt the fan is much of the standby current draw, if that is the issue.


The only standby numbers I can find are Bryan's, a 3KW/9KW Kipoint with only 4W standby, which seems reasonable to me.


If it is the noise, change the fan.  Maybe it has a ball bearing fan.  Fans with bushings tend to be quieter and use less power but they wear out faster.


Something I contemplated... Change the main fan to thermostat controlled.  Add another small hole in the case for a tiny 24/7 fan, like a 12V 50ma 1.25" laptop fan, just for some circulation.

G-

« Last Edit: February 01, 2010, 07:06:44 AM by ghurd »
Logged
www.ghurd.info<<<-----Information on my Controller

richhagen

  • Hero Member
  • *****
  • Posts: 1597
  • Country: us
Re: ups mod
« Reply #4 on: February 01, 2010, 05:01:01 PM »
When NTL came and visited me a few years back, he brought a Matrix 3000 Watt UPS, and we tested its draw under different loads, and found that for it, it drew quite a bit of power even with no load.  I don't recall the numbers, but I figured that unless you were running something sizable such as a well pump, it wasn't worth the 35 or 85 watts or whatever it it was pulling to do nothing.  I suspect this varies quite a bit for each make of UPS.  Rich
« Last Edit: February 01, 2010, 05:01:01 PM by richhagen »
Logged
A Joule saved is a Joule made!

richhagen

  • Hero Member
  • *****
  • Posts: 1597
  • Country: us
Re: ups mod
« Reply #5 on: February 01, 2010, 05:02:43 PM »
Not that it matters, but now that I think about it, he bought it on E-bay, and I picked it up and took the UPS to my place, and he picked it up from there. Rich
« Last Edit: February 01, 2010, 05:02:43 PM by richhagen »
Logged
A Joule saved is a Joule made!

ghurd

  • Super Hero Member Plus
  • *******
  • Posts: 8059
Re: ups mod
« Reply #6 on: February 02, 2010, 06:16:46 AM »
I went with him to Cleveland to pick up some 5000W Matrix UPS's.

Seems like those monsters took ~75W just being on, but I doubt much of it was the fans.

I wonder what he did with all those...

G-
« Last Edit: February 02, 2010, 06:16:46 AM by ghurd »
Logged
www.ghurd.info<<<-----Information on my Controller
Pages: [1]   Go Up
« previous next »