Inverter wiring "open ground" ?

Discussion in 'General Electronics Chat' started by goldwingtk, Apr 25, 2011.

  1. goldwingtk

    Thread Starter New Member

    Apr 20, 2011
    Just starting to play with solar.
    I installed a inverter to power a house receptacle. I used a double-pole double-throw switch so if needed i could switch back to house main. The switch is used to redirect hot and, neutral only, I used the existing earth ground. Now when i test the circuit my tester shows a open ground when i use inverter power. I can switch back to house main and the circuit will test correct.
  2. SgtWookie


    Jul 17, 2007
    In the States, the mains neutral wire is connected to ground at the electrical service panel/breaker box/fuse box; that is the only place the two circuits are connected. Outside of the service panel, the ground wire does not carry any current unless there is an electrical fault.

    You should not be connecting wires to your house receptacle like you are doing now. You will need an approved device known as a "transfer switch" to enable a change over from the utility company power to your inverter power. It should be installed by a licensed electrician.