Relay ndi chipangizo chowongolera magetsi chomwe, chikapatsidwa kuchuluka kwazomwe zaperekedwa ndikusungidwa kwa nthawi yokwanira, chimapangitsa kusintha kodziwikiratu kwa kuchuluka komwe kumayendetsedwa mugawo lamagetsi. Pamene kuchuluka kwa kulowetsedwa kumatsikira pamlingo wina ndikusungidwa kwa nthawi yokwanira, kumabwerera ku chikhalidwe chake choyambirira.
① Mphamvu Yamagetsi Yoyendera: Izi zikutanthauza mphamvu yamagetsi yofunikira ndi koyilo yolumikizira kuti igwire bwino ntchito. Kutengera mtundu wa relay, imatha kukhala AC kapena DC voltage.
② DC Resistance: Izi zikutanthauza kukana kwa DC kwa koyilo yolumikizira, yomwe imatha kuyezedwa ndi ma multimeter.
③ Kokani-mu Panopa: Izi ndi zochepa zomwe zikufunika kuti relay iyambike. Pogwiritsa ntchito nthawi zonse, mphamvu yogwiritsira ntchito iyenera kukhala yayikulupo pang'ono kuposa kukoka{2}}pakali pano kuti igwire bwino ntchito. Mphamvu yogwiritsira ntchito yogwiritsidwa ntchito sayenera kupitirira nthawi 1.5 kuposa mphamvu yogwiritsira ntchito; Kupanda kutero, mphamvu yochulukirapo idzapangidwa, yomwe imatha kuyatsa koyilo.
④ Kutulutsa Panopa: Uku ndiye kuchuluka kwapano komwe kumafunikira kuti wotumizirana atuluke. Pamene kukoka kwa relay-kucheperachepera kufika pamlingo wina wake, njirayo imabwerera m'malo ake osasunthika; yapano pano ndiyocheperako kuposa kukoka{2}}pakali pano.
⑤ Contact switching voltage and current: Izi zikutanthauza mphamvu yamagetsi ndi yapano yomwe relay imaloledwa kutsitsa. Zimatsimikizira kukula kwa voteji ndi zamakono zomwe relay ikhoza kulamulira. Mtengowu suyenera kupyola mukamagwiritsa ntchito, apo ayi zolumikizirana zitha kuwonongeka mosavuta.
