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What batteries are you using? I've had flooded lead acid batteries
have several mA of current flowing to ground through the acid mist
along the side of the battery. I had the battery bank supposedly
isolated but got a shock and traced the connection to ground to the
middle of the battery pack. I removed the "offending battery" and
the ground connection just jumped to another cell.<br>
Very bizarre, but definitely a real shock.<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
<div class="moz-cite-prefix">On 2/4/2016 9:33 AM, Drake wrote:<br>
</div>
<blockquote cite="mid:20160204163458.2934C102B5@che.dreamhost.com"
type="cite">
Hello Wrenches,<br>
<br>
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>
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>
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>
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>
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>
Thanks,<br>
<br>
Drake <br>
<br>
<br>
<i>Athens Electric LLC<br>
OH License 44810<br>
CO License 3773<br>
NABCEP Certified Solar PV <br>
740-448-7328<br>
</i><a moz-do-not-send="true" href="http://athens-electric.com/">http://athens-electric.com/</a>
<br>
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