hi, i'm a student using SOLAR HV DC-AC KIT to do research.
At the beginning, we did the close-loop grid-tie test well.
Then i modified the program. when we do test with modified program, the AC breaker tripped. I guess it was caused by i setting wrong DP somewhere in the program.
However, after that, even we used the original program to test, the AC breaker kept tripping.
What could be the reason? I guess some place on the kit going wrong after the first failure, but which part? the IGBT driver?
