[RE-wrenches] Classic 150 100 amp output breaker tripping?????
boB at midnitesolar.com
boB at midnitesolar.com
Thu Oct 29 11:13:08 PDT 2015
You don't want to drive for hours and hours to do something that might
not fix the problem.
Without knowing exactly what is happening, I would bring a spare Classic
and also a new breaker
which I think I heard we were sending you....
If the Classic is plugged into the internet, there is the possibility of
monitoring it to see what is
going on just before the breaker trips. I would just bring another one
in this case if you have one...
Otherwise, call our support and see if there is something they can do to
help in this regard.
Strange things do happen in this industry ! Troubleshooting isn't so
bad as long as you don't have
drive or take a helicopter a long ways just to find that the unit is
turned off.
boB
On 10/29/2015 9:55 AM, Brian Teitelbaum wrote:
>
> Daniel,
>
> Very strange problem.
>
> While I agree that you should try replacing the 100A breaker, I doubt
> that it’s the problem. Why would a breaker trip at low amperage in the
> morning, but not trip at noon when the amperage is higher?
>
> At early morning turn-on, the voltage might be too high, but high
> voltage is not going to trip a breaker. Current trips a breaker, not
> voltage.
>
> My guess is that something is going on inside the Classic controller.
> Larry’s “wild guess” might be on the mark. Do you have another Classic
> to swap out with?
>
> Brian Teitelbaum
>
> AEE Solar
>
> *From:*RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org
> <mailto:re-wrenches-bounces at lists.re-wrenches.org>] *On Behalf Of
> *Daniel Tittmann
> *Sent:* Wednesday, October 28, 2015 3:05 PM
> *To:* RE-wrenches
> *Subject:* Re: [RE-wrenches] Classic 150 100 amp utput breaker
> tripping?????
>
> An update on this issue:
>
> On my initial visit to diagnose this problem I changed the AGS
> settings higher volt start and % state of charge start. The report
> from the client is that this has fixed the AGS issue. So now I am
> just dealing with the 100 amp breaker tripping.
>
> The trip time from the client is when the sun hits the panels and once
> reset for the day it will not trip until the next morning. What could
> cause this?
>
> You are all right that the first step it changing out that breaker
> that will be the first on the list when I am back on site. I hope
> that is the only issue because as usual this system is 2 Hrs from the
> shop with no cell or internet coverage.
>
> Thanks for your input.
>
> Cheers-
>
> Daniel
>
>
> Daniel Tittmann
>
> CTO
>
> Greenwired
>
> www.greenwired.com <http://www.greenwired.com>
>
> daniel at greenwired.com <mailto:daniel at greenwired.com>
>
> 707-923-2001 (office)
>
> 707-206-5088 (Cell)
>
> On Mon, Oct 26, 2015 at 10:25 PM, Mac Lewis <maclewis1 at gmail.com
> <mailto:maclewis1 at gmail.com>> wrote:
>
> Hi Daniel,
>
> Do you know what the error is on the AGS? What are the start set
> points that you have? Jay could be on to something if the battery
> voltage is collapsing before the generator can start, the cc current
> could be high. Do you know specifically what time of day the breaker
> is tripping?
>
> I'd check the Midnite logs and consider starting the generator
> sooner. Is there large voltage swings (this could indicate bad
> battery or large load)? Make sure the wire is cleaned and torqued
> properly onto that breaker.
>
> How big is the battery bank and what is the tilt and azimuth of the
> panels?
>
> On Oct 26, 2015 11:05 PM, "Jay" <jay.peltz at gmail.com
> <mailto:jay.peltz at gmail.com>> wrote:
>
> Hi Daniel
>
> Is this a new classic with OCP? Or maybe they don't have it anymore?
>
> What it sure sounds like like is a big load on the batteries, it hits
> faster than the AGS can start, and the caps in the classic are dumping
> into the super low battery voltage. If this is happening in the AM,
> guessing with enough light to get the CC alive
>
> If there is a trimetric, you can measure the lowest voltage which
> should give you some good info. Super low volts might mean a bad
> battery or too big a load or both.
>
> But I don't believe it's the other way around that the classic is
> causing any issues with the AGS/inverter
>
> You could always try another CC and see what happens
>
> Jay
>
> Peltz power
>
>
> On Oct 26, 2015, at 6:30 PM, Daniel Tittmann <daniel at greenwired.com
> <mailto:daniel at greenwired.com>> wrote:
>
> Hive mind-
>
> hoping you all can help me solve this mystery issue.
>
> System:
>
> Magnum double panel with Parallel stacked 2x4448 pae inverters.
>
> Classic 150 charge controller wired with an NMEPV 50 (din rail)
> and NMEPV100
>
> 18 - 245 watt solar modules (6x3). (not over powered)
>
> Issue:
>
> every morning the 100 amp din rail breaker is tripping. from what
> I can gather simultaneously the magnum RTR shows the AGS go into
> error. Re set the breaker and the solar works fine for the rest of
> the day.
>
> Not 100% sure the AGS has worked (under normal operation) at all
> other than at commissioning and recent testing.
>
> Of course on site i cant get it to fail.
>
> Tested the AGS by setting start voltage to 48.2 vdc and put the
> system under load....... voltage drops and generator turned on
> with no pv-> Batt breaker issue.
>
> last visit, chasing one theory, I re routed the battery + from the
> mnpv100 directly to the battery + terminal as opposed to the
> battery + bus bar in the inverter panel still didn't solve the
> problem.
>
> I cant figure out if it the classic causing the issue or if it is
> the inverters and the AGS.
>
> Any input would be appreciated.
>
> Thanks
>
> Daniel
>
>
> Daniel Tittmann
>
> CTO
>
> Greenwired
>
> www.greenwired.com <http://www.greenwired.com>
>
> daniel at greenwired.com <mailto:daniel at greenwired.com>
>
> 707-923-2001 <tel:707-923-2001> (office)
>
> 707-206-5088 <tel:707-206-5088> (Cell)
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
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