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How do I convert a 3-winding transformer series impedance into per unit impedance for PSSE

asked 2020-03-15 09:51:20 -0500

tharinda11 gravatar image

3 winding transformer, given data

HV 0.58+j62, MV 0.39, LV 2.9+j119

HV: MV 525/230 kV

HV: LV 525/11 kV

100MVA base

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answered 2020-03-17 13:42:55 -0500

drsgao gravatar image

I remember that one of the manuals, probably one of the 2 about the models, describes the transformer models in PSSE and how you could convert the Ohmic values into the per-unit one. You need to know how the transformer is physically connected (the clock).

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Asked: 2020-03-15 09:51:20 -0500

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Last updated: Mar 17