Troubleshooting Buck-Boost Transformers Used in UPS Input Panels
https://engineering-power-components.northcrestbrief.com/posts/buck-boost-transformers-in-water-pump-sites-a-practical-look-at-power-quality-checks
Troubleshooting Buck-Boost Transformers Used in UPS Input Panels Small power issues are easy to miss until a line is under stress. In UPS input panels, loads may shift during a transfer or a change in demand