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WBjr in Magnum MiniPanel

Started by Riverwind, September 19, 2014, 08:36:09 PM

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Riverwind

Had to install a WBjr in a Magnum minipanel and there is no easy way to do this using the existing shunt. I had to remove the WBjr plastic cover in order to fit the unit against the installed shunt. Only other solution I saw would be to install another shunt at an additional cost or attaching some wires and leaving it dangling. I realize this isn't ideal - leaving the cover off - but are there any problems I haven't foreseen other than a stray screwdriver frying the circuit board :(

Riverwind

Ok I backtracked and removed the metal ground bar on the shunt and was able to get the plastic cover back on. A bit brutal though.  :-X

vtmaps


Halfcrazy

Realize that little bus bar to chassis defeats the Ground Fault protection that NEC requires...
Changing the way wind turbines operate one smoke filled box at a time

zoneblue

Im curious too, as to why its on the bat neg side of the shunt, when the shared point of ground bond would be on the system side.
6x300W CSUN, ground mount, CL150Lite, 2V/400AhToyo AGM,  Outback VFX3024E, Steca Solarix PL1100
http://www.zoneblue.org/cms/page.php?view=off-grid-solar

vtmaps

Quote from: zoneblue on September 21, 2014, 03:46:52 PM
Im curious too, as to why its on the bat neg side of the shunt, when the shared point of ground bond would be on the system side.

Makes sense to me... current can't get into or out of the battery without going through the shunt.  As for the bond to ground... it shouldn't normally be carrying any current, so it shouldn't matter which side it's on.  In the event (fault) that it does carry current, its current would be counted by having the bond on the system side of the shunt.

--vtMaps