5Th International Conf On Ac And Dc Power Transmission, Date: SEP 17-20, 1991, Location: LONDON, ENGLAND, Sponsors: INST ELECT ENGINEERS, DIV POWER, CONF IN GRANDS RESEAUX ELECT, BRIT NATL COMM, CONVENT NATL SOC ELECT ENGINEERS W EUROPE, IEEE, UK & REPUBLIC IRELAND SECT, Host: INST ELECT ENGINEERS SAVOY PLACE