Quote:
Originally Posted by broadgage
Duplicated LV transformers are generally due to either exceptional load growth, or as above, legacy cable systems intended for 3 wire DC and now supplied with 6 phase AC.
|
Or as part of a commissioned contract that requires belt-and-braces avoidance of single point-of-failure: industry, broadcasting, MoD... Can be configured as both on load-sharing (depending on fault capacity of the board) or 'either/or' with planned changeover intervals for maintenance.