Hello everyone. I would ideas on how to safely induce a ground fault in a PV array. I have 4 modules that will be connected in series in a classroom. I would like to install a device between 2 modules that will safely create a ground fault, ie. bond that conductor to ground.
In a real world scenario, this ground fault could be caused by many things, most common source are squirrels chewing ont he wires. The wire then touches the frame of the PV array and the current increases in the circuit thereby blowing a 1A GFDI fuse in the inverter.
Basically, I need the residual current in the conductor which is usually below 100mA to increase to over 1 amp. I understand that the resistance needs to decrease for this to happen because of Ohm's Law (I = E / R). This is accomplished in a real array by bonding the conductor to ground.
Anyone know of a switch or similar device that can accomplish this? Many thanks!
In a real world scenario, this ground fault could be caused by many things, most common source are squirrels chewing ont he wires. The wire then touches the frame of the PV array and the current increases in the circuit thereby blowing a 1A GFDI fuse in the inverter.
Basically, I need the residual current in the conductor which is usually below 100mA to increase to over 1 amp. I understand that the resistance needs to decrease for this to happen because of Ohm's Law (I = E / R). This is accomplished in a real array by bonding the conductor to ground.
Anyone know of a switch or similar device that can accomplish this? Many thanks!