Reliability Research Strategy of All-domesticized Chip Relay Protection Device

In the current international situation, based on the existing domestic chips, the rapid development of relay protection backup device can be used for emergency spare parts of relay protection devices in extreme cases to avoid the occurrence of “inorganic availability”. It is urgent to verify whether the relay protection device can operate safely and stably, whether the reliability meets the requirements, and whether the life expectancy is credible. For this reason, this paper proposes a reliability research strategy of the national production chip relay protection device: firstly, according to the actual operation environment and working mechanism of the national production chip relay protection device, a set of life reliability verification test method conforming to the characteristics of national production chip relay protection device is formulated; secondly, the reliability test method of national production chip relay protection device is designed; finally, the full domestic chip relay protection is evaluated in three aspects, including hardware and software, protection configuration and current environment of relay protection such as temperature and humidity. It is of great significance for the steady realization of independent and controllable relay protection device and the guarantee of reliable operation of electric power.