Positive Ground Vs Negative Ground Solar Panels

If grounding is necessary it must be completed on the positive line.

Positive ground vs negative ground solar panels.

I ended up with a positive ground solar charge controller. Originally the voltages on the wires were positive with respect to earth. I am also powering some clearance lights with the truck trailer plug. This is called negative ground since the negative side of the battery is grounded to earth.

There are two distinct advantages to grounding the positive leg of a photovoltaic solar system. I have a not so typical question on charge controllers. 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. 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.

There are three main reasons for grounding in an off grid power system. The electronics required for switching on the positive side is a little more complicated hence more expensive that what s needed for switching on the negative. A pwm controller switches on off modulates the ungrounded connection between the solar panel s in a negative ground system and or in a positive ground system and the battery. 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.

They both relate to leakage to ground. Chassis or mechanical and electrical. But before we address each of these it s important to understand the actual definition of ground. Safety v oltage transients and t h e sheer fact that they are required for some loads.

Positive ground the positive terminal is defined ground. Common positive systems can be a massive can of worms. This occurs primarily because of moisture. Negative ground means that ground is referenced to the negative terminal of the supply voltage.

The slide in camper has a chassis ground common to all the interior and clearance lights. There are two types of ground. Common negative grounding is simply having all negatives linked to ground.