I have an engineering degree - but I only took one electrical course. I sure could use some help with a surge protection design.
I pump water from a lake for irrigation. At the home site I send a 24 volt signal to a relay to trigger a 240 volt pump. It is about 800 yards to the relay. It is about 8 feet from the relay to the pump.
I have blown 3 relays and I do not know why or where the surge is coming from. These cost ~$50 each so I am tired of doing this.
I would like to fuse everything and try to determine where the spike is coming from. I'd even like to fuse the line from the relay to the pump in case I am getting a reverse voltage.
Is there someone who can design such a circuit for me? I can probably build it - but if they want to build it that would be great as well.
Thanks in advance for your assistance and I hope I don't insult anyone.