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AAFD-DU故(gu)(gu)(gu)障(zhang)(zhang)電(dian)(dian)(dian)弧(hu)保護(hu)器對接入線路中(zhong)的(de)故(gu)(gu)(gu)障(zhang)(zhang)電(dian)(dian)(dian)弧(hu)傳(chuan)感(gan)器進行(xing)統一檢(jian)測。故(gu)(gu)(gu)障(zhang)(zhang)電(dian)(dian)(dian)弧(hu)傳(chuan)感(gan)器可(ke)以(yi)(yi)對故(gu)(gu)(gu)障(zhang)(zhang) 電(dian)(dian)(dian)弧(hu)（包(bao)括(kuo)故(gu)(gu)(gu)障(zhang)(zhang)并聯電(dian)(dian)(dian)弧(hu)、故(gu)(gu)(gu)障(zhang)(zhang)串聯電(dian)(dian)(dian)弧(hu)）進行(xing)有效的(de)檢(jian)測，當檢(jian)測到線路中(zhong)存在引起火(huo)災(zai)的(de)故(gu)(gu)(gu)障(zhang)(zhang)電(dian)(dian)(dian)弧(hu)時， 顯示單(dan)元(yuan)可(ke)以(yi)(yi)進行(xing)現場的(de)聲光報警，并將報警信息(xi)傳(chuan)輸給電(dian)(dian)(dian)氣火(huo)災(zai)監控設備。集中(zhong)顯示單(dan)元(yuan)可(ke)同(tong)時通過對 配電(dian)(dian)(dian)回(hui)路的(de)剩(sheng)余電(dian)(dian)(dian)流、導線溫度等火(huo)災(zai)危險(xian)參(can)數實施監控和(he)管理。