My inverters are isolated. The DC is not grounded. This version has a 10A fuse between DC neg and ground
as a means of detecting an array fault, but no operational current flows through it. If the DC neg were directly
grounded, the fuse would be useless. I think you mean, "one side of the 400V source is grounded", which has
an entirely DIFFERENT meaning than "400V DC on the frames". Bruce Roe
as a means of detecting an array fault, but no operational current flows through it. If the DC neg were directly
grounded, the fuse would be useless. I think you mean, "one side of the 400V source is grounded", which has
an entirely DIFFERENT meaning than "400V DC on the frames". Bruce Roe
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