Disconnecting Solar Panels Under Load

In this next video installment in the solar basics series we will take a look at connectors.

Disconnecting solar panels under load.

Often overlooked connectors are important to maintaining relia. A tested and approved safety device which removes all lethal dc volts from any solar installation. An ac disconnect shuts off the current between the inverter and the ac power grid. The ac disconnect is used to separate the inverter from the electrical grid.

Utility companies may also utilize the solar disconnect when performing maintenance or other repairs to nearby power lines. Applying the factor by dividing the maximum power point current by the factor will show how the disconnect switch should be rated under normal conditions. Common issues are zero power and low voltage output. The second disconnect is the ac disconnect.

This article describes how you can troubleshoot a solar system in basic steps. The ac disconnect may be a breaker on a service panel or it may be a stand alone switch. A dc disconnect shuts off the current from the panels to the inverter. Some larger systems use a solar power disconnect switch for added safety in case one of the solar panels gets exposed to light during maintenance.

Quality solar panels are built and guaranteed to produce power for 25 years for that reason it s most likely that a problem is caused by a defect in system. 146 a 0 80 182 5 amps to find out more about sizing a disconnect switch check out this article from home power solar electricity basics to look at our available disconnect switches we. Troubleshooting a solar pv system below i will describe basic steps in troubleshooting a pv array.