[RE-wrenches] Schneider ac coupling time.

[Kienan Maxfield]

Jay,

It waits 50 seconds to even start to try to shift the frequency. I don’t know how long it takes to get up to get to 64 HZ. I heard somebody say that they thought that the 50 second delay should be adjustable, but I could not find a way to adjust it. I have not had a chance to talk to Schneider tech-support about it since then.

I had a problem with this on a job, by the time the Schneider would change its frequency, the voltage would be way over an acceptable voltage. I had to adjust the voltage setpoint down in order to try to shorten the delay. That was not really a good workaround because how quickly the voltage rises depends on the charge rate. 

I know that all of the delays and ramp up speeds and ramp down speeds are fully user adjustable on outback equipment, I hope that Schneider has added this adjustability by now... but last time I checked, I don’t think you could. 

Thanks,
Kienan 



> On Jun 5, 2019, at 10:46 AM, jay <jay.peltz at gmail.com> wrote:
> 
> 
> HI All,
> 
> I’ve got a project using lithium batteries and a big hydro.
> 
> 4kw hydro
> 6.8kw schneider
> off grid
> AC coupled hydro
> 
> The plan is to use a combination of ways to keep from overcharging the batteries.
> 
> 1. PWM diversion control load. If this doesn’t keep up then we go to #2
> 2. AC couple HZ control and if that fails we go to #3
> 3. SS relay control on GT inverter output via inverter control
> 
> 
> My question is this:  Does anyone know the time between when the XW+ sees the voltage and then gets to the 64hz for regulation?
> 
> thanks
> 
> jay
> 
> peltz power
> 
> 
> _______________________________________________
> List sponsored by Redwood Alliance
> 
> List Address: RE-wrenches at lists.re-wrenches.org
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
> 
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
> 
> Check out or update participant bios:
> www.members.re-wrenches.org
>