Inverter building using Wiseguys Power board and the Nano drive board

Author	Message
Solar Mike Guru Joined: 08/02/2015 Location: New Zealand Posts: 1147	Posted: 12:31am 07 May 2024         Godoh said   ..I am feeding around 75 to 90 volts into the regulators and up to 35 amps, so maybe just a voltage sensing circuit, then a automotive relay wired into the input of each regulator would do. You may require 3 or 4 contacts in series to achieve sufficient distance between the contacts when they open carrying any current, to prevent an arc from destroying them all. Try removing the wires off the controller and shorting them together than open them apart; at 90v the arc would be substantial 10mm or more. I think a single automotive relay may be risking it