2 ms·
In addition to the lower flux leakage as mentioned in this article, there is a benefit of R-core and toroidal transformers which is reduction in the strains due
by mk_stjames 4y ago
In addition to the lower flux leakage as mentioned in this article, there is a benefit of R-core and toroidal transformers which is reduction in the strains due to magnetorestriction that happens, which is what can make transformers- especially cheaply made EI-core transformers- have "hum" at 2x the AC fundamental frequency (e.g. 100 or 120hz for mains powered devices).