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HV power transformer at 200Hz

HV power transformer at 200Hz

HV power transformer at 200Hz

(OP)
Does anybody know how higher frequency (up to 200Hz) will affect transformer impedance (ez) compared with 50-60Hz transformer. I know that transformer will be smaller and lighter but approx value of ez worse to guess. power of transformer are in range 10-15MVA.

RE: HV power transformer at 200Hz

If you are talking about running the same transformer at 60 Hz and 200 Hz, the impedance will be much higher at 200 Hz.  Roughly 3 times greater, I would say, since nearly all of the impedance is leakage reactance which varies directly with frequency.  

If you are talking about a transformer designed to operate at 200 Hz, I'm not sure, but I'm guessing it will work out to a similar percentage of the base MVA as a transformer designed for 60 Hz.

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