question

jongor avatar image
jongor asked

BMV-712 shunt chassis ground

Where does the chassis ground go on the shunt?....line side (battery DC-) or load side (all DC- loads)?


Can't believe this isn't in any of the Victron installation documentation.


System is;

solar panel/AC shore power/vehicle battery can all charge the house battery via MPPT and B2B controllers; only want to monitor house battery not vehicle starting battery.


Grounding
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1 Answer
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wesser answered ·

Chassis ground should be connected to the load side of the shunt so that any current going to or from the battery is measured by the shunt. In a non isolated set up the chassis ground will form part of the charging circuit and needs to be measurable.

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