[OPLINTECH] Dirty Power

[Joe Knueven]

Along the lines of what Bob suggested, have you tried something like:

http://www.amazon.com/Furman-Advanced-Conditioning-Voltmeter-Isolated/dp/B001JJB2GM/ref=sr_1_7?ie=UTF8&qid=1438802252&sr=8-7&keywords=power+conditioner

I suppose it's conceivable, that if the situation is bad enough that you'd be perpetually replacing the conditioner instead of the UPS, which isn't really much better.  That said, this is affordable enough that you could try something along these lines and see if it could take the fluctuations you're seeing without conking out all the time.  

The only catch is it looks like the ones that are cheap enough to be in the price range of a beefy UPS only go up to 15 amps, which could be an issue depending on how much you have to plug in..  

Best of luck.

Joe


Joseph Knueven
Director
Germantown Public Library
51 N. Plum St.
Germantown, OH 45327
937-855-4001
joe at gtownlibrary.net


-----Original Message-----
From: oplintech-bounces at lists.oplin.org [mailto:oplintech-bounces at lists.oplin.org] On Behalf Of Bob Neeper
Sent: Wednesday, August 05, 2015 3:08 PM
To: b.schultz at yourppl.org; oplintech at lists.oplin.org
Subject: Re: [OPLINTECH] Dirty Power

In the 80's, 90's when we designed mini-computer controlled scale equipment, we always required a SOLA CVS (Constant Voltage Source) be installed.
Back then we never even used battery backup systems and the equipment went world wide.
Sometimes where the power was really,  really bad.

For an idea, a typical link from google is:  (Unit looks just as it did back then) http://www.solahevidutysales.com/cvs_hardwired_series_power_conditioner.htm

Also I would have the power company, or someone,  put a line meter on to record typical fluctuations.
The data can be shown to the power company so they can clean up the power.

BTW The SOLA needs sized per the load requirements.

Bob

R. W. (Bob) Neeper
(Retired Toledo Scale Engineer & Library Computer Guy)

Volunteering at:
Community Library
44 Burrer Dr.
Sunbury, Oh 43074
Tel:  (740)-965-3901

On 8/5/2015 2:47 PM, Becky Schultz wrote:
> Hi!
>
> We have a branch that, due to extremely dirty power coming into the 
> building, we keep having to replace the UPS in the network cabinet. 
> Our electrician has also confirmed this is why the units are failing.  
> A 1500VA UPS is plenty big enough, but we apparently need a unit with more high end power conditioning.
> A whole building solution isn't justified, so I'm just looking for 
> feedback or suggestions on equipment to protect our relatively small rack of equipment.
>
> Thanks!
>

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