基于plc雙電源開關設計外文翻譯-plc設計-展示頁
2025-05-27 13:09本頁面
【正文】 1 ~ KA3 as U1 threephase. Phase lack detection switch sampling signal, to the PLC input terminal, used in the preparation of PLC U1 threephase openphase detection logic control program input conditions。 power supply U2 main circuit through the AC contactor KM2 main contacts and a load of W2 connected。 in the power supply return to normal after automatic reverse switch。 畢業(yè)設計（ 外文翻譯 ） 英文 題目 Based on PLC dual power switch design 中文題目 基于 PLC 雙電源開關設計 系 （院） 自動化系 專 業(yè) 電氣自動化技術 學生姓名 曹成帥 李廣斌 孫鳳寶 學 號 20209022384， 2020022410， 2020022427,2020022390 指導教師 張寶國 職 稱 副教授 年 月 日 濱州學院專科畢業(yè)設計 (外文翻譯 ) 2 Intelligent double power 1 Intelligent dual power supply switching technology In this paper, the double load dual power automatic switching of PLC control, PLC control program to replace relay logic control circuits, it has the threephase power supply phase detection and protection switching function, power returned to normal after the automatic reverse switch, when a fault and restore normal respectively sends out two difference clear alarm and prompt sound. Double load dual power automatic switching control of PLC, the openphase protection mainly adopts the technical proposal that : setting the threephase openphase detection signal circuit, the threephase openphase detection signal circuit directly from the main circuit of threephase power supply, namely the intermediate relay KA1KA3 and KA4KA6, respectively connected to power supply main loop U1 and U2 A, B and C single phase circuit, KA1KA3 and KA4KA6 normally open contacts respectively as PLC input signal, namely as the preparation of PLC U1 and U2 threephase openphase detection logic control program input conditions. With short phase protection double load dual power automat
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