- #1
Simon Hauser
- 1
- 0
My non-ee boss gave me a design assignment I'm not sure is physically possible. I work at a solar panel manufacturing company.
He wants me to essentially add a device to the mc4 connectors between modules which would allow disconnecting each module in a string from one another. He wants this added to our modules for safety reasons for fire fighters and installers. He wants it to be possible to achieve this from a switch down by the inverter, without the use of wifi/bluetooth and without using any more wires or any use of complex power electronics!
Seems as though relays wouldn't be possible, could there be some sort of AC fuse I could use? send the signal on the DC wires and pop the fuse? The problem is is that they are connected in series, so there would need to be some form of delay so the furthest from the AC signal generator would pop first and so on down the string... My boss doesn't want to hear "this is not possible" but I'm not sure it is with the constraints provided... any advice would be greatly appreciated!
Edit: Here is a one line diagram http://imgur.com/a4WYyXh
He wants me to essentially add a device to the mc4 connectors between modules which would allow disconnecting each module in a string from one another. He wants this added to our modules for safety reasons for fire fighters and installers. He wants it to be possible to achieve this from a switch down by the inverter, without the use of wifi/bluetooth and without using any more wires or any use of complex power electronics!
Seems as though relays wouldn't be possible, could there be some sort of AC fuse I could use? send the signal on the DC wires and pop the fuse? The problem is is that they are connected in series, so there would need to be some form of delay so the furthest from the AC signal generator would pop first and so on down the string... My boss doesn't want to hear "this is not possible" but I'm not sure it is with the constraints provided... any advice would be greatly appreciated!
Edit: Here is a one line diagram http://imgur.com/a4WYyXh