🌐EnglishEnglishBahasa IndonesiaDeutschFrançaisPortuguêsSvenskaTiếng Việtالعربيةفارسیहिन्दी한국어中文日本語EntityQ503732· pop 14· linked from 283 articlesprotective relayrelay device designed to trip a circuit breaker when a fault is detectedAvailable in 13 languages中文日本語Portuguêsالعربيةहिन्दीAzerbaijaniBahasa IndonesiaFinnishSvenskaTiếng ViệtفارسیConnectionshydroelectricityEntitydigital protective relayEntityCategoriesElectric power systems componentsOver-current protection devicesRelays