I have a water pump in a remote location. Sometimes the pump (120 volts) li ne springs a leak and then runs all the time with the potential of burning out pump. I want to build a little circuit that will tell me in my house if it is running. I have in the past build and induction coil out of a transf ormer and then used an LED to light up when the pump is on. I cut out one o f the sides of the transformer then run a few winds of the power wire aroun d the transformer that I cut the secondary wires from. It produces enough p ower to light an led.
However I would like to try another method. I have two ideas but I need a c ircuit diagram and instructions to do it.
One person mentioned to me the use of a Shunt. I have read up on shunts, an d as far as I can see there is some potential here. Does anyone have a diag ram that might be able to use a shunt. To light either an LED, or Neon bulb , or even Incandecent lamp.
Remember the point is not that there is power in the line, but it is to tel l me that the pump is actually drawing current.