I found a fix for my Dell XPS 15 9550. Tripping on my power adapter was fine. It turned out to be that the DC Jack was moving. I made a short video showing the problem and how I fixed it. https://youtu.be/X80Z4dMW-fM

I made a quick video showing how I fixed the problem on my XPS 15 9550. I have two Dell 130w power adapters and the center pin was fine on both. The problem on mine was the DC Jack was moving when I would plug the power cable in. Hope this helps someone else who stumbles upon this forum. https://youtu.be/X80Z4dMW-fM