電壓監(jiān)測(cè)器設(shè)成“接通=1”，當(dāng)電流超過(guò)大約80至100毫安時(shí)，電流監(jiān)測(cè)器設(shè)成“接通=1”。電壓監(jiān)測(cè)器用來(lái)檢查整個(gè)跳閘回路的狀態(tài),而電流監(jiān)測(cè)器可用于封閉輸出觸點(diǎn)直到外部觸點(diǎn)斷開(kāi)電流。上面所說(shuō)的A型輸出電路的結(jié)構(gòu)圖如下圖所示。其中，a)選用電壓監(jiān)測(cè)器b)選用電流監(jiān)測(cè)器c)無(wú)監(jiān)測(cè)

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