基于plc雙電源開關(guān)設(shè)計(jì)外文翻譯-plc設(shè)計(jì)-wenkub
2023-05-19 13:09:54 本頁面
【正文】 With short phase protection double load dual power automatic switching control circuit. It includes a main circuit and threephase short signal detecting sampling circuit. The main circuit of the input power supply power supply U1 and U2, its output has two 濱州學(xué)院專 科畢業(yè)設(shè)計(jì) (外文翻譯 ) 3 loads W1 and W2. Power main circuit of AC contactor U1 through KM1 main contacts and a load of W1 connected。 畢業(yè)設(shè)計(jì)（ 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(guān)設(shè)計(jì) 系 （院） 自動化系 專 業(yè) 電氣自動化技術(shù) 學(xué)生姓名 曹成帥 李廣斌 孫鳳寶 學(xué) 號 20209022384， 2020022410， 2020022427,2020022390 指導(dǎo)教師 張寶國 職 稱 副教授 年 月 日 濱州學(xué)院?？飘厴I(yè)設(shè)計(jì) (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
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