Scheme research and device application for fire prevention of valve hall

This paper studies the design scheme of valve hall fire protection trip logic, and gives the realization of valve hall fire protection trip logic. The realization process includes the dual design of the fire protection and disaster trip interface panel of the valve hall, and the development and design of the switching value acquisition device and the switching value trip interface device.The developed device has passed the third-party test of a testing research institute, and its performance meets the requirements of IEC standards It is not only applicable to UHV converter station, but also applicable to both conventional converter station and flexible DC converter station, providing reliable technical support for safe and stable operation of converter station.