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Charge Controllers and Clippers => The "KID" charge controller => Topic started by: Aussierob on July 22, 2015, 04:15:06 PM

Title: PV voltage display with PV breaker off
Post by: Aussierob on July 22, 2015, 04:15:06 PM
Sorry,
More questions. I am load testing my batteries so have my 6.6 amp load on. This is to see how much run time I get until the low voltage disconnect is activated. As part of this test I have turned off the PV breaker to disconnect the panels from the Kid. The Kid is displaying a solar voltage of 10.9 volts. I measure 11.5 volts. Any known reason for this? I would have thought the PV display voltage would be zero with the breaker off. On the solar panel side of the breaker I have about 70 volts. There is no connection between any of the negatives.

Thanks,
Rob :)
Title: Re: PV voltage display with PV breaker off
Post by: Resthome on July 22, 2015, 04:24:45 PM
Quote from: Aussierob on July 22, 2015, 04:15:06 PM
Sorry,
More questions. I am load testing my batteries so have my 6.6 amp load on. This is to see how much run time I get until the low voltage disconnect is activated. As part of this test I have turned off the PV breaker to disconnect the panels from the Kid. The Kid is displaying a solar voltage of 10.9 volts. I measure 11.5 volts. Any known reason for this? I would have thought the PV display voltage would be zero with the breaker off. On the solar panel side of the breaker I have about 70 volts. There is no connection between any of the negatives.

Thanks,
Rob :)

I don't have a Kid but on the Classic it is normal to see a voltage here with no PV connected. I believe it is based on the battery bank voltage.
Title: Re: PV voltage display with PV breaker off
Post by: SM-Viper on July 23, 2015, 08:11:02 AM
Rob,

I too have a Kid, and this is said to be normal. I asked the same question here before, and that was the response.  I'll try to find it for you.

-Sean
Title: Re: PV voltage display with PV breaker off
Post by: SM-Viper on July 23, 2015, 08:18:20 AM
Rob,

Here it is:

http://midnitesolar.com/Forum/index.php?topic=2289.msg21534#msg21534 (http://midnitesolar.com/Forum/index.php?topic=2289.msg21534#msg21534)

-Sean
Title: Re: PV voltage display with PV breaker off
Post by: Aussierob on July 23, 2015, 09:16:13 PM
Thanks Sean. It eluded me in my search.