skip.delclos
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A very old (1969) dry type transformer buzzing loudly. No harmonics or inbalance present, only a low (70 percent) pf. What could be causes? Thanks
Is it a deep 60Hz hum, or a 180hz buzz?
(and cue the joke about not knowing the words)
A very old (1969) dry type transformer buzzing loudly. No harmonics or inbalance present, only a low (70 percent) pf. What could be causes? Thanks
Loose laminations, loose windings..in fact almost anything loose that can vibrate at power frequency.A very old (1969) dry type transformer buzzing loudly. No harmonics or inbalance present, only a low (70 percent) pf. What could be causes? Thanks