Auto Transformers in UPS Support Systems- A Guide to Service Planning

https://blogfreely.net/petherxhnb/h1-b-electrical-chokes-and-inductors-in-ups-rectifier-rooms-a-closer-look-at

Auto Transformers in UPS Support Systems: A Guide to Service Planning A panel can look simple while its duty is far from simple. In UPS support systems, loads may shift during a transfer or a change in demand