[GLLUG] UPS trouble

[Chick Tower]

Just what does any of this have to do with United Parcel Service?


                                Chick

On 07/23/2012 07:03 PM, Peter Christenson wrote:
> the breakers are standard single pole 20 amp siemens breaker. my issue
> was that I had used a 20A breaker for 19.6 Amp sustained draw across 3
> motors and starting amps are higher.  with lots of starting and stopping
> any 20amp is doomed. (Its a insulation machine for retro insulating
> houses) so in the end I picked up a 25amp and it resolved the issue.
> also note though that I upped the gauge of wire used (to be safe)
> but if you ask any electrician they will tell you how "soft" breakers
> can get.
>
>
> to measure the current I used a
> logging multimeter and custom/diy current transducer. :)
>
>
>
> On Mon, Jul 23, 2012 at 5:38 PM, Richard Houser <rick at divinesymphony.net
> <mailto:rick at divinesymphony.net>> wrote:
>
>     You must have crap breakers.  They should last a lot better than
>     that.  How did you measure the current anyhow?
>
>     On Jul 23, 2012 3:56 PM, "Peter Christenson" <pac1.mi at gmail.com
>     <mailto:pac1.mi at gmail.com>> wrote:
>
>         sorry Clay didn't mean to just send this to just you.
>
>         although I don't post here much. I can tell you from personal
>         experience. go with a new beaker, if you trip the breaker to
>         many times it will start to get "soft" and trip under less load.
>         I have fried 3 20amp breakers do to tripping them. on the last
>         one I tested the trip load on it from trip 1 to failure, and
>         after about 10 trips it was down to 19.5 amps, 50 trips was down
>         to 16 amps. 62 trips was the failure.  don't know if this random
>         info helps but load balancing helps a lot!!
>
>         Peter.
>
>         On Mon, Jul 23, 2012 at 3:39 PM, Don Bosman <dbosman at msu.edu
>         <mailto:dbosman at msu.edu>> wrote:
>
>             Make the mess. It's cheaper than even a small fire.
>
>             Don Bosman
>
>
>             On 7/23/2012 3:00 PM, Tom Schouten wrote:
>
>                 Yep that's the real problem which will be fixed when
>                 (time) budget allows.
>                 Currently due to how things are setup I can't do this
>                 without making a mess...
>
>                 On 07/23/2012 02:32 PM, Bert W. Carrier Jr. wrote:
>
>                     That's the point I was trying to make.  If you can
>                     add a breaker dedicated to the computer equipment,
>                     you reduce the load on the original circuit that has
>                     ACs and whatever else on it.
>
>                     A 15 amp breaker costs about $10 bucks, and 12 gauge
>                     wire is less than a buck per foot.