Power transformer mecanical vibration
Power transformer mecanical vibration
(OP)
I am looking information of the causes of power transformer mechanical vibration.
Thank in advance.
Thank in advance.
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Power transformer mecanical vibration
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RE: Power transformer mecanical vibration
I've heard the term magnetostriction used to describe the 2xline frequency vib, but I never knew exactly what it meant.
Obviously pumps and fans if running can cause 1x running speed vibration due to imbalance, or harmonics of running speed for misalignment, loosesness, rubbing etc. Possibly also some flow vibration for forced oil.
It is possible that electrical discharges occuring in the transformer can give rise to very high frequency (hundreds of megahz) vibration/noise.
I'm not sure if that's what you're looking for. Are you looking to diagnose transformer problems through vib analysis? Or are you just looking to minimize vibration coming from transformers.
RE: Power transformer mecanical vibration
The vibrations from load current ,I believe is from the leakage flux flowing outside the windings through the tank and structural parts of trf.
Vibrations from coolers are normally not so appreciable