廈門莫格電氣自動(dòng)化有限公司
我們提供:PLC模塊,DCS卡件,ITCC卡件,AI DI AO DO模塊
網(wǎng)絡(luò)模塊 計(jì)數(shù)模塊 適配器模塊 CPU模塊 掃描模塊
本特利3500系列卡件 Triconex模塊 HIMA模塊 ICS卡件 GE 燃機(jī)備件 艾默生DCS備件
聯(lián)系人：雷琳
24小時(shí)銷售熱線：18050035902
Q Q : 1982497648
電話：0592-6808394
傳真：0592-6514751
地址：廈門市湖里區(qū)安嶺路1012號(hào)202之二單元
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控制與操作
機(jī)組LCU可以接受上位機(jī)或LCU操作面板上的輸入命令，執(zhí)行相應(yīng)操作。機(jī)組LCU都是通過其開出繼電器的空接點(diǎn)去動(dòng)作現(xiàn)場(chǎng)設(shè)備，共使用單接點(diǎn)形式的開出點(diǎn)50多點(diǎn)，分別作用于各種管路的電磁閥、電路的斷路器、高壓油泵、潤(rùn)滑油泵、漏油箱油泵的電動(dòng)機(jī)等現(xiàn)地設(shè)備輸入點(diǎn)。
機(jī)組的控制操作需要編寫以下主要流程：
1) 機(jī)組順序控制流程。該流程包括以下幾種工況：停機(jī)—空載；空載—發(fā)電；發(fā)電—空載；空載—停機(jī)。
2) 緊急停機(jī)流程。
3) 發(fā)電組事故報(bào)警流程。
4) 發(fā)電組事故報(bào)警及停機(jī)流程。
5) 高壓頂起油泵控制流程。
6) 潤(rùn)滑油泵控制流程。
7) 漏油箱油泵控制流程。
8) 故障、事故音響處理流程。
9) 其它流程。
2.3 機(jī)組的有功和無功調(diào)節(jié)
LCU裝置對(duì)機(jī)組有功（P）、無功（Q）調(diào)節(jié)是根據(jù)LCU控制面板或主機(jī)設(shè)置的P、Q值，通過對(duì)機(jī)組的導(dǎo)葉開度和勵(lì)磁電壓進(jìn)行調(diào)節(jié)，使機(jī)組按給定的P、Q值運(yùn)行。對(duì)于P、Q的調(diào)節(jié)，LCU輸出的調(diào)節(jié)量采用脈寬的方式，調(diào)節(jié)脈沖均通過中間繼電器輸出給微機(jī)調(diào)速器和微機(jī)勵(lì)磁調(diào)節(jié)器，在P、Q的調(diào)節(jié)中還設(shè)立了發(fā)電機(jī)電壓、電流、P、Q負(fù)荷差等多種調(diào)節(jié)保護(hù)，確保P、Q調(diào)節(jié)在安全的范圍內(nèi)進(jìn)行。PLC直接通過以太網(wǎng)與廠級(jí)網(wǎng)絡(luò)進(jìn)行通訊，可確保當(dāng)現(xiàn)地LCU中操作面板出現(xiàn)故障，監(jiān)控系統(tǒng)仍能從遠(yuǎn)方監(jiān)控所控設(shè)備（包括機(jī)組開、停機(jī)控制、增減有、無功率等）。
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IDIFIER B39840
