Author Topic: Earth Ground and DC Negative bonding  (Read 91 times)

jramerman

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Earth Ground and DC Negative bonding
« on: June 30, 2020, 12:50:12 AM »
Hi all. I am located in Australia where we use the Multiple Earth Neutral system (MEN). I am off-grid so have no connection to the main power grid.

My question relates to Earth Ground and Negative bonding. I have a Classic150 the instructions for which state NOT to bond earth and negative as the internal GFP circuitry achieves this. My question is, can I bond Earth Ground and Negative on the AC side, that is in the AC distribution Board without affecting the Classic?

Thanks for any advice.
1 x Classic 150; 8 x 100Ah AGM Deep Cycle batteries, 24V 400Ah configuration, Latronics 3000W inverter, 2 strings 3 x 260W Trina panels

Sandleton, South Australia

ClassicCrazy

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Re: Earth Ground and DC Negative bonding
« Reply #1 on: June 30, 2020, 01:15:02 PM »
I have all my all my negatives tied and they go  to ground rod and same one as AC ground goes to .
Not sure if this is proper or not but it the way I have it.
Those with more  technical expertise  will have to weigh in on this.

Larry
system one
Classic 150 , 5s4p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system two
Classic 150 ,5s 135 watt Kyocero , 16s Calb 100AH LiFePO4 , Outback VFX 3648 inverter
system three
Midnite KID MPPT 24 DC in to  12 volt AGM batterie

jramerman

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Re: Earth Ground and DC Negative bonding
« Reply #2 on: June 30, 2020, 07:34:51 PM »
Thank you ClassicCrazy. I have received advice from Midnite that yes I can on the AC side bond Earth and Neutral and still use the Classic's GFP monitoring circuit. I guess this post can now be closed.
1 x Classic 150; 8 x 100Ah AGM Deep Cycle batteries, 24V 400Ah configuration, Latronics 3000W inverter, 2 strings 3 x 260W Trina panels

Sandleton, South Australia