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05
Dec

Napa proteksi transien trafo kudu ngindhari arus hubung singkat voltase rendah?

Iki utamané kanggo nimbang selectivity saka relay pangayoman tumindak. Sing dhuwur-voltase sisih cepet-break pangayoman utamané kanggo nglindhungi fault external serius saka trafo. Singkat-sirkuit Nilai saiki saka sawetara ora owah akeh lan Sejatine padha, kang bakal nggedhekake sawetara dhuwur-voltase sisih pangayoman cepet-break kanggo kurang voltase metu baris, mangkono ilang selectivity. Perlindhungan luwih dipercaya sawise ilang selektivitas, nanging nyebabake ijin ora kepenak. Contone, akeh industri saiki duwe ruang distribusi daya umum 10KV (busbar 10KV + pemutus sirkuit metu), lan saben bengkel duwe ruangan distribusi daya voltase rendah (kabinèt jaringan ring + Transformator), yen pemutus sirkuit ora bisa lolos maksimal. short-circuit saiki ing sisih voltase kurang saka trafo, iku bakal nimbulaké ngalih kurang voltase utama, (ring unit utama mbukak ngalih sekring), lan dhuwur-voltase mbobol sirkuit bakal operate, kang bakal nimbulaké nyaman kanggo operasi. .