Keces BP Series, User Manual

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8
BP Series User Manual
(3) Toroidal transformers are also acoustically quieter than EI transformers. In addition the
windings tightly envelope the entire core, effectively reducing magnetostriction
– the
main source of the familiar mechanical hum found in standard vertically laminated EI
transformers. Compared to EI transformers, toroidal are silent. That is why the toroidal
transformer is suitable use in sensitive equipment.
(4) This efficiency yields the most easily identifiable feature of the toroid, its size benefit.
Toroidal transformers are about half the size and weight of standard transformers.