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國電南(nan)瑞PSM692U電動(dong)保(bao)護(hu)(hu)裝(zhuang)置，由線路(lu)保(bao)護(hu)(hu)，變(bian)壓器(qi)(qi)保(bao)護(hu)(hu)，電容(rong)器(qi)(qi)保(bao)護(hu)(hu)，電抗器(qi)(qi)保(bao)護(hu)(hu)，備用(yong)電源(yuan)自投，電動(dong)機(ji)保(bao)護(hu)(hu)等組(zu)成(cheng)，可用(yong)于 110kV 及以下電壓等級(ji)的電網和(he)發電廠(chang)廠(chang)用(yong)電系(xi)(xi)統。通過(guo)采(cai)用(yong)高性(xing)能 32 位 CPU將保(bao)護(hu)(hu)、測控(kong)、通信功能集成(cheng)于一體，適合(he)與(yu)變(bian)電站綜合(he)自動(dong)系(xi)(xi)統或(huo)電廠(chang)電氣自動(dong)化系(xi)(xi)統配(pei)套。裝(zhuang)置可以組(zu)屏(ping)集中安裝(zhuang)，也可直接安裝(zhuang)于開關柜上進(jin)行分散式控(kong)制。

國電南自(zi)PSM692U微機保(bao)(bao)(bao)(bao)(bao)(bao)護(hu)裝(zhuang)置 1 功(gong)能 z 電流(liu)速斷保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z 定時限過(guo)(guo)(guo)流(liu)保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z 兩段定時限負(fu)序過(guo)(guo)(guo)流(liu)保(bao)(bao)(bao)(bao)(bao)(bao)護(hu)/反時限負(fu)序保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z 過(guo)(guo)(guo)熱保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z 堵(du)轉保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z 單相接地(di)保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z 低電壓保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z 過(guo)(guo)(guo)負(fu)荷保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z 非電量保(bao)(bao)(bao)(bao)(bao)(bao)護(hu) z F-C 閉鎖(suo)功(gong)能 z 4-20mA 輸出 z 9 條故障錄波(bo)，2 條啟動錄波(bo) z I，U，P，Q，Cosφ，有(you)功(gong)電度，無功(gong)電度，14 路開關量采集 z GPS 對時（分脈沖，

PST693U微機保(bao)護裝(zhuang)置 三(san)段(duan)式復(fu)合(he)電(dian)壓(ya)(ya)過流保(bao)護 當任一相(xiang)電(dian)流大于(yu)定(ding)值且(qie)復(fu)合(he)電(dian)壓(ya)(ya)啟(qi)(qi)動(dong)(dong)，經(jing)(jing)延時，裝(zhuang)置跳閘。 復(fu)壓(ya)(ya)啟(qi)(qi)動(dong)(dong)元(yuan)件功能：A 相(xiang)電(dian)流經(jing)(jing) Uab、Uca 或負序電(dian)壓(ya)(ya)啟(qi)(qi)動(dong)(dong)，B 相(xiang)電(dian)流經(jing)(jing) Uab、Ubc 或負序電(dian)壓(ya)(ya)啟(qi)(qi)動(dong)(dong)， C 相(xiang)電(dian)流經(jing)(jing) Ubc、Uca 或負序電(dian)壓(ya)(ya)啟(qi)(qi)動(dong)(dong)。若復(fu)壓(ya)(ya)啟(qi)(qi)動(dong)(dong)元(yuan)件退(tui)出，則(ze)過流保(bao)護不需(xu)復(fu)壓(ya)(ya)啟(qi)(qi)動(dong)(dong)。

國電(dian)(dian)(dian)南自PSM692U微機(ji)(ji)綜保，異(yi)步電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)在(zai)啟(qi)動(dong)(dong)(dong)過(guo)程(cheng)中電(dian)(dian)(dian)流(liu)(liu)很大，通常能(neng)達到 5～8 倍額(e)定(ding)(ding)(ding)電(dian)(dian)(dian)流(liu)(liu)（Ie），啟(qi)動(dong)(dong)(dong)時間能(neng)長達幾十(shi)秒。裝置設(she)兩(liang)個速斷定(ding)(ding)(ding)值，在(zai)起機(ji)(ji)過(guo)程(cheng)中采(cai)用(yong)“啟(qi)動(dong)(dong)(dong)中速斷定(ding)(ding)(ding)值”，該(gai)(gai)值按躲過(guo)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)啟(qi)動(dong)(dong)(dong)電(dian)(dian)(dian)流(liu)(liu)整定(ding)(ding)(ding)，等電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)啟(qi)動(dong)(dong)(dong)過(guo)程(cheng)結束后(hou)，自動(dong)(dong)(dong)采(cai)用(yong)“啟(qi)動(dong)(dong)(dong)后(hou)速斷定(ding)(ding)(ding)值”，該(gai)(gai)值按電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)自啟(qi)動(dong)(dong)(dong)電(dian)(dian)(dian)流(liu)(liu)和(he)區外(wai)出口短路時電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)最大反饋電(dian)(dian)(dian)流(liu)(liu)考慮，取兩(liang)個電(dian)(dian)(dian)流(liu)(liu)中的大者。

國(guo)電南自綜保(bao)(bao)(bao)PSM692U電動(dong)機保(bao)(bao)(bao)護(hu)(hu)裝置$n電流(liu)速斷保(bao)(bao)(bao)護(hu)(hu) / 定時(shi)限(xian)過(guo)(guo)流(liu)保(bao)(bao)(bao)護(hu)(hu) / 兩段(duan)定時(shi)限(xian)負$n序過(guo)(guo)流(liu)保(bao)(bao)(bao)護(hu)(hu) / 反時(shi)限(xian)負序過(guo)(guo)流(liu)保(bao)(bao)(bao)護(hu)(hu) / 過(guo)(guo)熱保(bao)(bao)(bao)護(hu)(hu) / $n堵轉保(bao)(bao)(bao)護(hu)(hu) / 單相接地(di)保(bao)(bao)(bao)護(hu)(hu) / 低電壓保(bao)(bao)(bao)護(hu)(hu) / 過(guo)(guo)負荷(he)$n保(bao)(bao)(bao)護(hu)(hu) / 非電量保(bao)(bao)(bao)護(hu)(hu) / FC 閉鎖(suo) / 4-20mA / 測量