Analysis and Treatment for Protection Inaction of Grille Remover
With respect to a event of wire rope derailment of scraper caused by rope loosening protection failure and the thermal protection action of upstream power switch trips due to the failure of overload protection of the grille remover of nuclear power,according to the principle of the proximity switch,the control circuit mechanical structure and field envi-ronment,basic reasons of the malfunction are determined.Solutions are proposed and other grille removers are rectified to prevent similar failure and improve equipment reliability.
NETL
NSTL
万方数据
