Protection device technical specification for 1000kV UHV AC pilot project

摘要

The secondary system specification of Jindongnan-Nanyang-Jingmen UHV AC pilot project,relay protection part, is made based on the relative standards and specifications of generalrelay protection equipments, considering the functions of pilot project and the future UHVpower system planning. This paper introduces how this specification was made. The adaptivescope, equipped principles, functions and technical guidelines of the relay protections arepresented, including line protection, over-voltage protection, transformer protection, reactorprotection and breaker protection. The principles for main articles are analyzed on the base ofdynamic simulation tests.