Expanding AC distribution panel
I'm looking at options for expanding the AC dist. on a Parallax 6300 dist. panel.
Forum Discussion
Andonso wrote:
I found a 20 amp ceramic fuse to test the PD9280.
Connected the black (hot) and white (neutral) to an AC two prong plug, (left the green ground disconnected), and the fuse blew.
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I'm wondering if I should test again using a three prong AC plug connected to their respective wires, black (hot), white (neutral) and green (ground) from the AC?
No. The fuse blows because something is shorted in the AC side of the converter. There's not a whole lot there: a bridge rectifier, an electrolytic capacitor (or a few), the switching transistor, and perhaps some power factor correction circuitry. I would guess that one of the first three is the culprit.
The ground is a safety ground and doesn't really enter into the operation of the circuit at all.
