開關(guān)失炅1中性點(diǎn)電流低定啟動(dòng):這個(gè)定值設(shè)置中性點(diǎn)電流輸出監(jiān)測水平。通常,這個(gè)定值應(yīng)當(dāng)檢測到被保護(hù)斷路器上在插入電阻之后可能流過的最小電流(大約90%的電阻電流)。這個(gè)定值只對三相斷路器失靈保護(hù)方案有效。開關(guān)失靈1低定低[時(shí)延:設(shè)置插入電阻后的電流檢測啟動(dòng)延時(shí)。

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