0 votes 0 votes The primary mmf is least affected by the secondary terminal conditions in a Power transformer. Potential transformer. Current transformer. Distribution transformer. Power Systems gate2015-ee-1 primary-mmf turn-ratio + – makhdoom ghaya asked Feb 11, 2017 • recategorized Feb 28, 2017 by piyag476 makhdoom ghaya 9.4k points answer comment Share See all 0 reply Please log in or register to add a comment.