Isolation - specifies the inverter working mode based on the grounding status at the DC side and the connection to the power grid.
As we can see below, the inverter is running properly even if the isolation value is 0. How is it possible?
In this situation, we need to check the isolation parameter. Let's have a look:
As we know, before the start-up, inverters are performing auto-check tests to be sure that all the parameters meet the requirements that are checked before running. Among this, the inverter performs an isolation test.
If the isolation parameter is set as Input Grounded (with TF), the inverter will not perform the iso test anymore. This is the reason of the 0 isolation value shown in Neteco.
