先導(dǎo)關(guān)閉電路如圖2-6-9所示。圖2-6-9先導(dǎo)關(guān)閉電路(1)當(dāng)打開先導(dǎo)關(guān)閉桿時,監(jiān)控裝置連接先導(dǎo)關(guān)閉繼電器和啟動機切斷繼電器的搭鐵電路,使先導(dǎo)關(guān)閉繼電器和啟動機切斷繼電器打開。(2)當(dāng)先導(dǎo)關(guān)閉繼電器打開時,先導(dǎo)關(guān)閉電磁閥搭鐵電 (共 216 字) [閱讀本文] >>
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 先導(dǎo)關(guān)閉電路如圖2-6-9所示。圖2-6-9先導(dǎo)關(guān)閉電路(1)當(dāng)打開先導(dǎo)關(guān)閉桿時,監(jiān)控裝置連接先導(dǎo)關(guān)閉繼電器和啟動機切斷繼電器的搭鐵電路,使先導(dǎo)關(guān)閉繼電器和啟動機切斷繼電器打開。(2)當(dāng)先導(dǎo)關(guān)閉繼電器打開時,先導(dǎo)關(guān)閉電磁閥搭鐵電 (共 216 字) [閱讀本文] >>