Positive Ground Vs Negative Ground Solar Panels

Positive ground the positive terminal is defined ground.

Positive ground vs negative ground solar panels.

There are two distinct advantages to grounding the positive leg of a photovoltaic solar system. I ended up with a positive ground solar charge controller. Negative ground means that ground is referenced to the negative terminal of the supply voltage. Common positive systems can be a massive can of worms.

Originally the voltages on the wires were positive with respect to earth. I have it all setup to charge the house battery and have my loads set up through a fuse block on the load pins of the controller. The panel frames may be mounted to chassis ground and the solar controller may be mounted to. There are three main reasons for grounding in an off grid power system.

Safety v oltage transients and t h e sheer fact that they are required for some loads. If grounding is necessary it must be completed on the positive line. I find it kind of weird that positive ground charge controllers even exist since so many are used on rvs one would think a negative ground should be standard but i digress. And all switching fusing control done on the positive side.

They both relate to leakage to ground. But before we address each of these it s important to understand the actual definition of ground. I am also powering some clearance lights with the truck trailer plug. If the controller is to be used on a vehicle which has battery negative on the chassis loads connected to the controller must not have an electrical connection to the vehicle body.

This is called negative ground since the negative side of the battery is grounded to earth. Common negative grounding is simply having all negatives linked to ground. As the negative terminals of different devices are all at different voltages in a common positive system. This occurs primarily because of moisture.

Chassis or mechanical and electrical. The slide in camper has a chassis ground common to all the interior and clearance lights. I have a not so typical question on charge controllers.