Why some RCDs/GFCIs are damaged if used in reverse
From bigclivedotcom. With recent regulation changes to address the issue of RCDs/GFCIs being damaged when used in solar power systems that can feed power back to the supply network. The issue is that some (not all) RCDs/GFCIs have a short duty cycle coil designed to be pulsed at high current very briefly to trigger the…