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某明渠引水式电站,装机4×2000千瓦,渠道长2公里。渠首引水枢纽装设渠道进水闸门3孔,筏道闸门1孔,滚水坝泄冲闸门3孔。为便于调节水量和提高电站的自动化水平,渠首的7孔闸门均在中央控制室装有远方操作按钮和闸门位置指示器。原设计,闸门采用交流操作,控制接线见图1所示。图中的按钮“2AN”和闸门位置指示器“XSB”安装在中控室闸门操作盘上,渠首与中控室通过2根长度2200米,37×2.5的控制
A nullah water diversion power station, installed 4 × 2000 kilowatts, 2 kilometers long channel. Canal diversion hub installation channel inlet gate 3 holes, raft gate 1 hole, rolling dam flood gate 3 holes. In order to facilitate the regulation of water and improve the automation level of the power station, the 7-hole gate in the headline is equipped with a remote operation button and a gate position indicator in the central control room. The original design, gate using AC operation, control wiring shown in Figure 1. Figure button “2AN” and the gate position indicator “XSB” installed in the control room gate operation panel, the head and central control room through two 2200 meters in length, 37 × 2.5 control