Incazelo emfushane:

I-relay yokuvikela i-voltage isebenzisa iprosesa yesivinini esikhulu nenamandla aphansi njengengqikithi yayo.

Uma ulayini wokuphakelwa kukagesi une-over-voltage, i-under-voltage, noma ukwehluleka kwesigaba,

ukujikisa isigaba, i-relay izonqamula isekethe ngokushesha nangokuphephile ukuze kugwenywe izingozi

okubangelwa yi-voltage engavamile ethunyelwa ku-terminal appliance. Uma i-voltage

uma ibuyela enanini elijwayelekile, i-relay izovula isekethe ngokuzenzakalelayo ukuqinisekisa

ukusebenza okuvamile kwezinto zikagesi ezisebenza endaweni yokugcina ngaphansi kwezimo ezinganakwa.