How To Disconnect A Solar Inverter?

Last Updated on July 11th, 2023

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As with any electrician’s repair job, one of the first steps will be to shut off the power to prevent any harm to the person doing the work.

The next move will be to disconnect any breakers or circuit switches before unhooking any of the components of the inverter, which an electrician can replace or make repairs as needed.

Once the system has been fixed or sealed from the circuit, the power can be restored, and solar energy collection can resume. This article will explore the various do’s, don’ts, and what to avoid when working with your solar inverter.

A red solar inverter behind solar panels - How To Disconnect them?

How Do You Safely Disconnect Your Solar System?

As mentioned above, there will be a first set of steps that will check the system for damage, troubleshoot any program or software, then use the breakers in the circuit to shut down the power being used in the solar collection system.

One of those steps should include a call to the local power facility operator to ensure they are aware of the system disruption and allow the grid to adjust to the change.

As a precaution, having a voltmeter will be recommended to ensure that all electricity is cut off from the inverter before removing or repairing the hardware.


Will the Battery still Charge with the Solar Panel when the Disconnect Setting Turns off?

The controller is the first stop for the photons, which can then connect to the inverter or storage batteries. Even if the controller or inverter battery disconnect setting is offline, there will be a trickle charge effect from the panels to the batteries.

This small amount of charging will occur until the batteries are sufficiently full, to which the photosynthetic cells will rest idly on some systems.


What if There isn’t a Switch?

There will be simpler systems that will not have these disconnect switches but instead have a straight-to-storage wiring set up, which then connects to the inverter. The different step will be to turn off the transistors flow to the inverter until the new unit or repairing one is installed.

In a worst-case scenario, a system may continue to charge the batteries until they are overcharged, which leads to damaged battery cells. This is why having the right equipment and safety components is vital to prevent mistakes like this.


Common Mistakes You Need to Avoid:

  1. Over Charging – As mentioned in the section before this one, battery cells will be at risk for damage and faulty performance without regulatory equipment.
  2. Forgetting to turn the power off – When replacing anything involving electricity, one of the first things to do will be to turn the power off and prevent accidental electrocution.
  3. Not having the proper tools – This is a common mistake; there are many tools that are not common in the carpenter’s tool belt and can be rather expensive to purchase for a single use; therefore, consider hiring an expert to avoid this mistake.


How Can You Tell if it is Disconnected?

The obvious way to tell would be when the house’s power is not functioning, a light switch doesn’t work, or the auxiliary power has been activated. Otherwise, the monitor pieces of equipment will give you the information when the inverter is disconnected.

The troubleshooter’s perspective will take the stance of needing a physical check, meaning looking at the hardware itself and checking the cords and hookups to make sure the connections are solid and complete.

From this step, if the system is still reading disconnected, you might need a call to the city operator’s office or a software update.


Final Thoughts on How to Disconnect a Solar Inverter

Disconnecting an inverter will be done only to repair the unit, replace it, or upgrade it. This will need to be done systematically, first by informing the local power grid operators of the disconnect and then by preparing the building for the shutdown.

If you have a controller that takes the current from the solar panels and directs it from there, make changes to the settings to prevent overcharging the batteries or any other hazards to the power system.

These systems are relatively simple circuits with advanced technology designed to capture photon particles efficiently. Just be smart when making choices involving these systems and thorough when working on them.

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