Relay na kariyar wutar lantarki yana amfani da na'ura mai sarrafawa mai sauri da ƙarancin ƙarfi a matsayin tushen sa.
Idan layin samar da wutar lantarki ya lalace ta hanyar over-voltage, under-voltage, ko phase framework,
juyawar mataki, relay zai yanke da'irar cikin sauri da aminci don gujewa haɗurra
wanda ke faruwa sakamakon rashin ƙarfin lantarki da aka aika zuwa na'urar lantarki ta ƙarshe.
ya dawo zuwa ƙimar da aka saba, relay ɗin zai kunna da'irar ta atomatik don tabbatarwa
aiki na yau da kullun na kayan lantarki na ƙarshe a ƙarƙashin yanayin da ba a kula da su ba.
