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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.
<br><br>
At 11:56 AM 2/4/2016, you wrote:<br>
<blockquote type=cite class=cite cite="">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.<br><br>
On Thu, Feb 4, 2016 at 12:33 PM, Drake
<<a href="mailto:drake.chamberlin@redwoodalliance.org">
drake.chamberlin@redwoodalliance.org</a>> wrote:<br>
<dl>
<dd>Hello Wrenches,<br><br>
<dd>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. <br><br>
<dd>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. <br><br>
<dd>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.<br><br>
<dd>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. <br><br>
<dd>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? <br><br>
<dd>Thanks,<br><br>
<dd>Drake <br><br>
<dd>Â <br>
<dd>Athens Electric LLC<br>
<dd>OH License 44810<br>
<dd>CO License 3773<br>
<dd>NABCEP Certified Solar PV <br>
<dd><a href="tel:740-448-7328">740-448-7328</a><br>
</i>
<dd><a href="http://athens-electric.com/">http://athens-electric.com/</a>
<br>
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