[RE-wrenches] Radian ROCB in Outback GSLC 120/240 AC

[Drake]

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.chamberlin at redwoodalliance.org>drake.chamberlin at 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
>
>Â
>Athens Electric LLC
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