
Chitetezo cha katundu wochulukirapo ndi chinthu chomwe chimagwiritsidwa ntchito m'makina amagetsi chomwe chimaletsa kuwonongeka kapena kulephera chifukwa cha kuyenda kwa magetsi mopitirira muyeso. Nthawi zambiri chimagwira ntchito poletsa kuyenda kwa magetsi pamene apitirira mulingo wotetezeka, kaya mwa kuphulitsa fuse kapena kugwetsa chopukutira magetsi. Izi zimathandiza kupewa kutentha kwambiri, moto, kapena kuwonongeka kwa zida zamagetsi zomwe zingachitike chifukwa cha kuyenda kwa magetsi mopitirira muyeso. Chitetezo cha katundu wochulukirapo ndi njira yofunika kwambiri yotetezera pakupanga makina amagetsi ndipo nthawi zambiri chimapezeka m'zida monga ma switchboard, ma circuit breakers ndi ma fuse.
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