I-GDYZ-302W Metal Oxide Arrester Tester yakhiwe nge-host, i-detector, nenduku yokufaka ugesi. I-host ne-detector zisebenzisa ukuxhumana okungenazintambo, ibanga lokuxhumana lingamamitha angu-30, i-host ingavula noma ivale ikhanda le-clamp le-detector ukude ukuze iqedele inqubo yokuhlola, futhi i-host ingabonisa inani lokuhlola lamanje nesimo sekhanda le-clamp ngesikhathi sangempela. I-detector isebenzisa i-micro motor ukushayela ukuvula noma ukuvala kwekhanda le-clamp. Ikhanda le-clamp lenziwe nge-permalloy yokusebenza okuphezulu, enekhono elikhulu lokumelana nokuphazamiseka futhi alithinteki kalula amandla kazibuthe angaphandle. Ukuhlukanisa kufinyelela ku-1uA. I-detector ingaxhunywa endukwini yokufaka ugesi ukuze ihlole ama-surge arrester e-zinc oxide emigqeni yamandla aphezulu. Imitha ingasetshenziswa futhi njengemitha yamanje evuzayo ye-clamp enembile kakhulu.