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Transformers Work, Too

Issue 11 and Volume 102.

Letters

Transformers Work, Too

In the Opinion Page of August 1998 issue, the Unified Power Flow Controllers were discussed. It was stated that because of the UPFC, for the first time, transmission line operators can direct the flow of large amounts of power over specified transmission paths rather than watching helplessly as it finds its own route.

Phase-shifting transformers have been performing similar tasks for a number of years. The UPFC may turn out to be a much better tool. Regardless of that, let us not forget the contributions of the good old PSTs.

Kamran Behnam-Guilani

Olympia, Washington

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