Innovation on Energy Power Technology (18)
Islanding Operation of the First Japanese-Made Nuclear Power Plant

Abstract

Shimane Nuclear Power Station Unit 1 (Shimane-1) of Chugoku Electric known as the first Japanese-made nuclear power plant scrammed automatically before dawn 12th September 1985 due to a power transmission grid trip result from thunderstroke. Until then, Shimane-1 was believed to be able to continue operation regardless of such power transmission grid trouble because the turbine bypass system had sufficient capacity to process total rated steam flow generated in the reactor. This paper describes the concerted efforts to achieving islanding operation of Shimane-1 by plant fabricator Hitachi, CRIEPI and Chugoku Electric with this incident as a start.