A knowledgeable person from Outback got back to me. The shock comes through the windings of the motor. The noise was due to the motor kicking on without the logic circuits from the inverter relays to control it (since the DC breakers were off). The motor pulls less than an amp.
At 11:56 AM 2/4/2016, you wrote:
You are probably getting a shock from the neutral leg of the coil, looking for a path to neutral. It's likely that there is not enough current to be harmful. On Thu, Feb 4, 2016 at 12:33 PM, Drake <<mailto:drake.chamber...@redwoodalliance.org>drake.chamber...@redwoodalliance.org> wrote: Hello Wrenches, I'm hooking up a Radian with a Remote Operated Circuit Breaker for AC coupling. With only the positive inverter cable connected, we found battery voltage at the negative inverter cable with all switches off. Humm. It turns out that the Remote Operated Circuit Breaker (ROCB) control circuit is the culprit. This is factory connected to the battery side of the main breakers in the GS Load Center. The voltage present gave my assistant a minor shock when he tried to hook the negative inverter cable to the battery. When the negative battery cable lug touched the negative battery terminal, a sound came from somewhere that sounded like a super fast relay chatter. One tech support person thought it could be the ROCB trying to close, as it was open (off) position. The tech support people are only able to speculate about what might be happening. Another tech support person said that if the factory wiring on the relays was correct, it would be impossible to get a shock. Going thought the diagram in figure 2 of the attachment, it looks to me that voltage would conduct to the negative battery cables if all the relay contacts were positioned as shown in figure 2. Has anyone hooked up the GSLC AC 120/240? Have you had any unusual voltages or noises before turning on the main DC breakers? From Figure 2, do you think it would be possible to get a complete circuit through the relays before the main breaker is turned on? Thanks, Drake  Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified Solar PV <tel:740-448-7328>740-448-7328 <http://athens-electric.com/>http://athens-electric.com/  <https://www.avast.com/sig-email> [] This email has been sent from a virus-free computer protected by Avast. <https://www.avast.com/sig-email>www.avast.com _______________________________________________ List sponsored by Redwood Alliance List Address: <mailto:RE-wrenches@lists.re-wrenches.org>RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org>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>http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: <http://www.re-wrenches.org/etiquette.htm>www.re-wrenches.org/etiquette.htm Check out or update participant bios: <http://www.members.re-wrenches.org>www.members.re-wrenches.org -- Chris Mason NABCEP Certified Solar PV Installer Solar Design Engineer Generac Generators Industrial technician <http://www.cometenergysystems.com>www.cometsolar.com 264.235.5670 869.662.5670 Skype: netconcepts _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@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
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