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                          河北华利机械配件有限公司

                          变电站测控屏控制手把红绿灯回路的问题及改进

                          2013/5/8 8:32:44

                          0 引言

                                  SUIZHEJISUANJI、WANGLUOHETONGXUNJISHUDEGAOSUFAZHANYIJIZAIDIANLIXITONGZHONGDEGUANGFANYINGYONG,BIANDIANZHANJIANKONGXITONGDEJISHUSHUIPINGZHENGZAIXUNSUDETIGAO,BIANDIANZHANZONGHEZIDONGHUAJIANKONGSHOUDUANSHIYOUCHANGGUIKONGZHISHOUDUANFAZHANERLAI,ZAIQIZHUANBIANDEGUOCHENGZHONG,XUDUOSHEJILINIANSHANGHAIDOUNENGKANCHUCHANGGUIKONGZHISHOUDUANDEYINGZI。DANBANSUIZHEJISHUHEHUANJINGDEGAIBIAN,ZAISHIJIYUNXINGZHONG,FAXIANGEBIEJISHUHUANJIEDEJIANDANZHUANHUANYIJINGBUNENGSHIYINGXITONGANQUANYUNXINGDEXUYAO,TEBIESHIYOUYURENSHIDEWUQUCUNZAICENGDAOZHIYIXIEWENTIDECHUXIAN。LIRUZAICHANGGUIKONGZHIBIANDIANZHANWEILEJIANSHIKAIGUANFENHEZHAZHUANGTAIHEKONGZHIHUILUDEWANZHENGXINGZAIKONGZHIPINGSHANGSHEJIYOUHONGLVDENGJIQIXIANGGUANHUILU,ZAIBIANDIANZHANSHIXIANZONGHEZIDONGHUASHEJIZHIHOU,JIANGGAIHUILUYUANFENGBUDONGDEZHUANYIDAOLECEKONGPINGSHANG,JIUDAOZHILEYIXIEWENTIDECHUXIAN。

                          1 分合闸指示灯回路设计不合理引发的问题

                                  目前,220kV 及以上变电站都实现了综自监控系统设计,作为常规控制屏上的红绿灯及其相关回路在监控系统中得到了继承和保留。这些变电站一般在测控屏上的控制手把上保留了用于监视分合闸状态和回路完整性的二极管型分合闸指示红绿灯,用来代替传统控制盘上的红绿灯。根据传统设计思路的沿袭,不少设计单位将KK 把手的信号灯回路直接接入到了开关的控制回路,回路图如“图1”所
                          123棋牌室 示,以此反映开关的操作状态。

                           

                          123棋牌室        ZHEIZHONGKONGZHISHOUBADEFENHEZHAZHISHIDENGXIANGDUICHUANTONGDEZHISHIHUILUJIEGOUJINCOU,DANWOGONGSIJINQIZAIYIXIEXIANCHANGFAXIAN,GEBIEZONGZIXITONGCAIYONGDEMOUGONGSISHENGCHANDEN2 XINGKK BASHOU( WEIGAIGONGSIYUANYOUDATIJILAOXINGHAODEGAIJINXING,YONGYIWEIYITIHUASHEJI,BINGJIANXIAOKK BASHOUSUOZHANKONGJIAN) ,CHUXIANGUODUOCIYINGAIHONGLVDENGSUNHUAIDUANLUERDAOZHIKONGZHIDIANYUANTIAOKAI,ZAOCHENGKAIGUANSHIQUKONGZHIDIANYUANDEYANZHONGHOUGUO。ERZAIDUISUNHUAIDENGJUJINXINGGENGHUANDEGUOCHENGZHONGRUGUODUANDIAOKONGZHIDIANYUANHUIYINGXIANGDAOJIDIANBAOHUZHUANGZHIDUIKAIGUANDEBAOHUTIAOZHA,RUGUOBUDUANDIAODIANYUANGENGHUANHUIYOUWUDONGDEWEIXIAN,JISHEBEIDEANQUANYUNXINGZAOCHENGLEYINHUAN,TONGSHIYEJIWEIHUGONGZUODAILAILEKUNNAN。JINGGUODUIGAIXIANXIANGDEFENXI,CHAMINGYUANYINWEIGAIGONGSIDESHOUBASHEJIRENYUANDUIGAIXINHAODENGHUILUDEXIANCHANGSHIYONGGONGKUANGJIXIANQINGKUANGLEJIEBUZU,XINHAODENGHUILUGONGLVDIANZUDESHEJIYULIANGPIANXIAO,ZHANGQISHIYONGHUIDAOZHIDIANZUFARELIANGJIAODASHENZHISHAOHUAIZAOCHENGDUANLU。YIDANDIANZUSHAOHUAIJIANGYINFAXINHAODENGHUILUDUANLU,ZAOCHENGKONGZHIHUILUDIANYUANDUANLUTIAOZHA,RUGUOZAIHUILUSHIDIANQIJIANXITONGYOUGUZHANGZEDAOZHIKAIGUANJUDONG,TONGSHIZAIYANZHONGQINGKUANGXIADUANLUYEYOUKENENGDAOZHIKAIGUANWUDONG。ZHENDUIZHEIZHONGHUILUSHEJIFANGSHICUNZAIDEANQUANYINHUAN,WOMENBIXUCAIQUCUOSHIJINXINGGAIJIN。

                          2 分合闸指示灯设计回路的改进思考

                          ZHENDUICILEIQINGKUANG,WOMENTONGGUORENZHENFENXI,RENWEIZHEIZHONGCHUANTONGDEHUILUSHEJIFANGSHIYIJINGBUNENGWANQUANSHIYINGMUQIANDEQINGKUANGLE,ERKEYITONGGUOSHIYONGCEKONGPINGSHANGDEYAOXINDIANYUANQUDAIKONGZHIDIANYUANDEJIANDANFANGFA,RU“TU2”SUOSHIDEHUILUDAITIYUANYOUHUILU。

                           

                          通过图1 和图2 两张图的对比,可以看出,主要修改只是将红绿灯回路的电源由控制母线KM 移到信号母线XM,同时对相应的接线进行小的改动。虽然改进简单,但所起到的作用非常大。因为在正常运行状态下HWJ 和TWJ 已经能够反映控制电源状态,这样通过改进红绿灯不但能够监视到分合闸状态及控制回路的完整性,也就是常规设计方式能够监视到的内容,更能够使运行人员在巡视时通过红绿灯状态直观的监视到信号电源是否正常。而通常情况下,在设计上为了监视信号( 遥信) 电源通常要采取: ( 1) 相邻测控装置互相监视; ( 2) 正电直接短接到遥信开入并取反的方式进行监视; ( 3) 遥信与测控装置共用电源,通过测控装置自检信息的通讯中断来间接判断。但这三种方式都只能通过后台信息来进行判断,通过图2 方式的改进使得值班员多了一种判断遥信电源故障的途径,增强了设备安全运行的可靠性。同时还可以带来如下好处( 1) 红绿灯短路情况下不影响开关控制电源,从而不会影
                          响开关的跳合闸; ( 2) 便于更换和处理故障,维护更加安全和方便。

                          3 执行分合闸指示灯回路改进中的实际操作实例

                          123棋牌室ZHENDUIGEBIEBIANDIANZHANFASHENGDECEKONGPINGHONGLVDENGDUANLUYINFADEKONGZHIDIANYUANTIAOZHAGUZHANG,WOGONGSIDUISUOSHUQUANBUZAIYUNSHEBEIJINXINGLERENZHENDEPAICHABINGZHUANMENZHIDINGLEFANCUO,GUINAGONGCAIQULEYIXIASANZHONGFANGSHI: ( 1) YUGONGHUOCHANGJIALIANXITIGONGZAIANQUANXINGNENGSHANGZUOLEHENDAGAIJINDEXINXINGDENGBANDUIBUFENDAITOUYUNSHEBEIJINXINGGENGHUAN; ( 2) JIANGKONGZHIDIANYUANGAIWEIYAOXINDIANYUAN; ( 3) DUIYUNXINGZHONGDEWUFADAIDIANGENGHUANDEBIANDIANZHANSHEBEICAIQULINSHITIAOKAIDENGHUILUDECUOSHI,DAITIAOJIANJUBEISHIGENGHUAN。

                          3. 1 控制电源改为遥信电源的实际操作实例

                          123棋牌室BENCAOZUOSHILISHIJIANG“TU3”DEJIEXIANGAIWEI“TU4”ZHONGDEJIEXIANXINGSHI。YOUYUHONGLVDENGZHENGDIANDUANKK + JUNBINGJIEYUKAIGUANKONGZHIZHENGDIANJ101( + KM) ,SUOYIXUYAOJIANGHONGLVDENGDEZHENGDIANDUANKK + JIEXIANYOUJ101 GAIWEIYAOXINZHENGDIAN+ XM,ERBAOHUCAOZUOXIANGXUYAOXINJIEYIKEXIANXINDAO- XM FUDIANWEIHWJ HETWJ TIGONGFUDIAN,CISHIXUYAOXINZENGYIKECEKONGPINGYUBAOHUCAOZUOXIANGPINGJIANXIANXIN,RUGUOYUANDIANLANYOUBEIYONGXIN,ZHIXUQIYONGGAIDIANLANDEYIKEBEIYONGXIN,HEDUICHUBEIYONGXIANXINHOU,YOUCEKONGYAOXINFUDIANTIGONGJIBAOHUCAOZUOXIANGDETWJ HEHWJ,ERHONGLVDENGHUILUZHONGDEJ135 HEJ105 WUXUGAIDONG。DANGRAN,RUGUOXINFANGDIANLANXIANRANBIJIAOLANGFEIERQIEDAILAILEJIAODADEGONGZUOLIANG,YOUXIEDEBUCHANGSHI。

                          3. 2 临时挑开灯回路的实际操作实例

                          YOUYUZONGZIBIANDIANZHANDEYUNXINGRENYUANSHIYIJIANSHIJIANKONGHOUTAIWEIZHU,CEKONGPINGSHANGHONGLVDENGDEZUOYONGYIJINGDADAZHEKOU,YINCILINSHITIAOKAIHONGLVDENGHUILUBUHUIJIYUNXINGDAILAITAIDADEYINGXIANG。YINCIZHENDUIBUFENWURENZHIBANBIANDIANZHANCEKONGPINGYUBAOHUCAOZUOPINGJIANDIANLANMEIYOUBEIYONGXINDE,KEKAOLVJIANGCEKONGPINGHONGLVDENGHUILULINSHIQUXIAO,DANZAICHAICHUJIEXIANSHIBIXUQUEBAOCHAIJIEXIANHEDUIZHENGQUE。

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