??? ?? ?? ?? ??? 1971? ?????? ‘?????’? ????. ?????? ????? ????, ??? ??? ??? ????(R&D)? ??? ????? ????? ????? ?? ?? ??? ??? ??? No.1 ??? ??? ??? ????.
??? ? ??? ???? ???? ??? ? ??? ??? ??? ??? ??? ?? ?? ???? ???? ?? ??? ?? ??. ??? ??? ??? ??? ?? ??? ?? ??? ??? ?? ???? ???? ??.
?????? 1978? ??? ‘??????’?? ?? ??? ??????? 345kV ???, 800kV 2?? ???????? ??? ?? ??? 1100kV? ???? ??? ??? ????. ???? 3?? ??? ??? ????? ???? HVDC(??? ????)? STATCOM(???????????) ??? ????.
??? ?? ??? ????? ?? ???? ?? ??? ???? ??? ??? ????. ?? 4?? 1 ??? 10? ?? ?? ????? ???? ???, ????? ?? ?? ?? ??? ?????. ????? ??? ????, ???? ????? ???? ???·??????? ???.
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