TE-GMJD单相接地故障综合管理系统_安徽泰隆电气有限公司

一、產品概述

在電(dian)(dian)力系(xi)(xi)統(tong)中(zhong)，單相(xiang)(xiang)接(jie)(jie)地(di)(di)(di)故(gu)(gu)障約占全(quan)(quan)部故(gu)(gu)障的(de)(de)85%,而且這些單相(xiang)(xiang)接(jie)(jie)地(di)(di)(di)故(gu)(gu)障中(zhong)，85%以(yi)上(shang)是瞬時的(de)(de)和(he)可(ke)以(yi)恢復的(de)(de)。電(dian)(dian)力系(xi)(xi)統(tong)運行(xing)的(de)(de)安全(quan)(quan)性和(he)供電(dian)(dian)的(de)(de)可(ke)靠(kao)(kao)性，在其(qi)它條件相(xiang)(xiang)同的(de)(de)情況下，取決于系(xi)(xi)統(tong)中(zhong)性點(dian)的(de)(de)工作(zuo)方式(shi)(shi)，即(ji)中(zhong)性點(dian)接(jie)(jie)地(di)(di)(di)方式(shi)(shi)。在有效接(jie)(jie)地(di)(di)(di)系(xi)(xi)統(tong)中(zhong)，單相(xiang)(xiang)接(jie)(jie)地(di)(di)(di)故(gu)(gu)障線路(lu)會被(bei)迅速切除(chu)，防止事故(gu)(gu)擴大，這對(dui)于110kV及以(yi)上(shang)的(de)(de)輸變電(dian)(dian)網絡來說是合適(shi)的(de)(de)。35kV及以(yi)下中(zhong)壓輸配電(dian)(dian)系(xi)(xi)統(tong)，由于對(dui)供電(dian)(dian)可(ke)靠(kao)(kao)性要求高(gao)，則采用了中(zhong)性點(dian)非有效接(jie)(jie)地(di)(di)(di)方式(shi)(shi)，或稱(cheng)小電(dian)(dian)流接(jie)(jie)地(di)(di)(di)方式(shi)(shi)，對(dui)于發生幾率較(jiao)高(gao)的(de)(de)單相(xiang)(xiang)接(jie)(jie)地(di)(di)(di)故(gu)(gu)障，不會產生危及人身、設備和(he)系(xi)(xi)統(tong)安全(quan)(quan)的(de)(de)短路(lu)電(dian)(dian)流，并具有瞬時性單相(xiang)(xiang)接(jie)(jie)地(di)(di)(di)故(gu)(gu)障自(zi)愈(yu)能(neng)力，系(xi)(xi)統(tong)的(de)(de)線電(dian)(dian)壓仍(reng)然對(dui)稱(cheng)，可(ke)以(yi)保持對(dui)用戶的(de)(de)連續供電(dian)(dian)。

我國6~35kV中(zhong)壓(ya)(ya)(ya)(ya)系統(tong)主要采用中(zhong)性(xing)點不接地(di)或經(jing)消弧線圈接地(di)的非有(you)效(xiao)接地(di)方式(shi)，提(ti)高(gao)了中(zhong)壓(ya)(ya)(ya)(ya)系統(tong)的供電(dian)(dian)可靠性(xing)。但(dan)另(ling)一方面(mian)，這種接地(di)方式(shi)也給中(zhong)壓(ya)(ya)(ya)(ya)輸配電(dian)(dian)系統(tong)帶來了一些問題，主要是單相(xiang)接地(di)時會引(yin)起弧光(guang)過(guo)電(dian)(dian)壓(ya)(ya)(ya)(ya)及諧振過(guo)電(dian)(dian)壓(ya)(ya)(ya)(ya)。特別對于(yu)較(jiao)高(gao)倍數的間歇性(xing)弧光(guang)接地(di)過(guo)電(dian)(dian)壓(ya)(ya)(ya)(ya)，如不能及時消除，可能造成避雷器(qi)熱崩潰、電(dian)(dian)纜放炮、電(dian)(dian)壓(ya)(ya)(ya)(ya)互感器(qi)故障、絕緣閃絡等各(ge)類事故，引(yin)發第二點接地(di)造成危害較(jiao)大的相(xiang)間事故。

這(zhe)些事故(gu)表(biao)明中(zhong)(zhong)壓(ya)(ya)系(xi)統(tong)(tong)中(zhong)(zhong)性(xing)(xing)點(dian)(dian)非有效接(jie)地(di)方(fang)(fang)式(shi)會(hui)給系(xi)統(tong)(tong)電(dian)氣設備的(de)(de)(de)運行(xing)安全帶來(lai)一(yi)(yi)些問(wen)題。這(zhe)些問(wen)題如果(guo)不能有效解(jie)決(jue)(jue)(jue)，用(yong)戶(hu)就會(hui)在(zai)供(gong)電(dian)可靠性(xing)(xing)和(he)運行(xing)安全性(xing)(xing)兩者(zhe)間(jian)進行(xing)選(xuan)擇(ze)，也就是中(zhong)(zhong)性(xing)(xing)點(dian)(dian)接(jie)地(di)方(fang)(fang)式(shi)的(de)(de)(de)選(xuan)擇(ze)。多年(nian)的(de)(de)(de)運行(xing)經(jing)驗(yan)表(biao)明，在(zai)中(zhong)(zhong)壓(ya)(ya)系(xi)統(tong)(tong)選(xuan)擇(ze)有效接(jie)地(di)方(fang)(fang)式(shi)會(hui)顯(xian)著(zhu)地(di)降低供(gong)電(dian)可靠性(xing)(xing)。因此保持(chi)中(zhong)(zhong)性(xing)(xing)點(dian)(dian)非有效接(jie)地(di)方(fang)(fang)式(shi)提高供(gong)電(dian)可靠性(xing)(xing)的(de)(de)(de)優點(dian)(dian)同時(shi)解(jie)決(jue)(jue)(jue)這(zhe)種接(jie)地(di)方(fang)(fang)式(shi)帶來(lai)的(de)(de)(de)問(wen)題是近(jin)年(nian)來(lai)中(zhong)(zhong)壓(ya)(ya)系(xi)統(tong)(tong)的(de)(de)(de)一(yi)(yi)個主要(yao)研(yan)究課題。解(jie)決(jue)(jue)(jue)這(zhe)一(yi)(yi)問(wen)題的(de)(de)(de)關鍵(jian)在(zai)于準確(que)的(de)(de)(de)故(gu)障選(xuan)線和(he)有效的(de)(de)(de)后續處理。在(zai)準確(que)確(que)定故(gu)障支路(lu)(lu)的(de)(de)(de)基礎上，根據故(gu)障支路(lu)(lu)負載(zai)的(de)(de)(de)重要(yao)性(xing)(xing)以及故(gu)障的(de)(de)(de)性(xing)(xing)質來(lai)靈活、有效地(di)確(que)定故(gu)障的(de)(de)(de)處理方(fang)(fang)式(shi)，形(xing)成系(xi)統(tong)(tong)解(jie)決(jue)(jue)(jue)方(fang)(fang)案。

目前(qian)市場(chang)上廣泛使用的(de)小電(dian)流選(xuan)線方式往(wang)往(wang)受到接(jie)(jie)地點(dian)阻抗變化范圍大(da)、工況復雜、零序電(dian)流信號弱、電(dian)磁(ci)干擾強等各種因素的(de)影響，難以快速、準(zhun)確地選(xuan)出(chu)發生單(dan)相接(jie)(jie)地故障支路，選(xuan)線準(zhun)確率較低。

泰隆電(dian)(dian)氣在聯合(he)(he)各(ge)界資源(yuan)力量、在國內外電(dian)(dian)力行業的(de)技術(shu)支持(chi)下誕生了一種智能化電(dian)(dian)網單相(xiang)接(jie)(jie)地(di)(di)(di)故障綜(zong)合(he)(he)保護管(guan)理系(xi)(xi)統(tong)(tong)（簡稱接(jie)(jie)地(di)(di)(di)管(guan)理系(xi)(xi)統(tong)(tong)），系(xi)(xi)統(tong)(tong)綜(zong)合(he)(he)了直接(jie)(jie)接(jie)(jie)地(di)(di)(di)、不接(jie)(jie)地(di)(di)(di)、電(dian)(dian)阻(zu)接(jie)(jie)地(di)(di)(di)、消弧(hu)(hu)線(xian)圈(quan)等(deng)接(jie)(jie)地(di)(di)(di)方式相(xiang)互配(pei)合(he)(he)運(yun)行，比目前電(dian)(dian)力系(xi)(xi)統(tong)(tong)采(cai)用單一的(de)中性點不接(jie)(jie)地(di)(di)(di)、消弧(hu)(hu)線(xian)圈(quan)接(jie)(jie)地(di)(di)(di)、小（中）電(dian)(dian)阻(zu)接(jie)(jie)地(di)(di)(di)方式具(ju)有更高的(de)供電(dian)(dian)可(ke)靠性、選線(xian)準確率(lv)高、過電(dian)(dian)壓倍數低和(he)消諧、消弧(hu)(hu)等(deng)作用好的(de)特(te)點。新建(jian)電(dian)(dian)力系(xi)(xi)統(tong)(tong)可(ke)以采(cai)用手(shou)動干預法(fa)運(yun)行，也可(ke)以采(cai)用自(zi)動模式運(yun)行。

二、技術方案

在中性點(dian)(dian)(dian)非有效接(jie)(jie)地(di)系統(tong)中，通(tong)(tong)過(guo)接(jie)(jie)地(di)變壓器引出(chu)一個(ge)中性點(dian)(dian)(dian)，該中性點(dian)(dian)(dian)與接(jie)(jie)地(di)運(yun)行渦流(liu)磁控(kong)開關IGBT串聯(lian)接(jie)(jie)入(ru)可控(kong)電(dian)阻后(hou)(hou)接(jie)(jie)地(di)。系統(tong)正(zheng)常(chang)運(yun)行時，接(jie)(jie)地(di)運(yun)行渦流(liu)磁控(kong)開關IGBT不(bu)導(dao)通(tong)(tong)。當系統(tong)或線路(lu)發(fa)(fa)生單(dan)相(xiang)接(jie)(jie)地(di)故(gu)(gu)(gu)(gu)障時，接(jie)(jie)地(di)變壓器的(de)(de)中性點(dian)(dian)(dian)發(fa)(fa)生變化，裝置中的(de)(de)主控(kong)制(zhi)器檢(jian)測(ce)到(dao)故(gu)(gu)(gu)(gu)障信(xin)號，并(bing)觸發(fa)(fa)接(jie)(jie)地(di)運(yun)行渦流(liu)磁控(kong)開關IBGT導(dao)通(tong)(tong)，零序(xu)(xu)回路(lu)將流(liu)過(guo)一個(ge)脈(mo)沖(chong)可控(kong)的(de)(de)零序(xu)(xu)大電(dian)流(liu)，該零序(xu)(xu)電(dian)流(liu)通(tong)(tong)過(guo)故(gu)(gu)(gu)(gu)障線路(lu)，故(gu)(gu)(gu)(gu)障線路(lu)測(ce)距定位信(xin)號采(cai)集單(dan)元(yuan)檢(jian)測(ce)到(dao)故(gu)(gu)(gu)(gu)障信(xin)號后(hou)(hou)發(fa)(fa)送給控(kong)制(zhi)器，判(pan)斷(duan)故(gu)(gu)(gu)(gu)障線路(lu)、故(gu)(gu)(gu)(gu)障類型及故(gu)(gu)(gu)(gu)障時間和故(gu)(gu)(gu)(gu)障波形(xing)等。然后(hou)(hou)根(gen)據單(dan)相(xiang)接(jie)(jie)地(di)故(gu)(gu)(gu)(gu)障的(de)(de)性質(zhi)，再采(cai)用(yong)不(bu)同的(de)(de)工作方式，讓消弧線圈和觸點(dian)(dian)(dian)消弧、電(dian)阻接(jie)(jie)地(di)及不(bu)接(jie)(jie)地(di)互(hu)相(xiang)配合，消除弧光(guang)故(gu)(gu)(gu)(gu)障，并(bing)互(hu)相(xiang)保護。

對于瞬時(shi)性接(jie)地故(gu)(gu)(gu)障和(he)(he)弧(hu)光接(jie)地故(gu)(gu)(gu)障，通過(guo)干預技術完(wan)成故(gu)(gu)(gu)障測(ce)距定位后迅(xun)速(su)啟動脈(mo)沖(chong)(chong)式消(xiao)(xiao)(xiao)(xiao)弧(hu)線(xian)(xian)圈和(he)(he)觸點(dian)(dian)消(xiao)(xiao)(xiao)(xiao)弧(hu)，用觸點(dian)(dian)消(xiao)(xiao)(xiao)(xiao)弧(hu)來旁(pang)路(lu)暫(zan)態、高頻(pin)接(jie)地電(dian)(dian)(dian)容電(dian)(dian)(dian)流和(he)(he)脈(mo)沖(chong)(chong)式消(xiao)(xiao)(xiao)(xiao)弧(hu)線(xian)(xian)圈暫(zan)態電(dian)(dian)(dian)感電(dian)(dian)(dian)流，當(dang)脈(mo)沖(chong)(chong)式消(xiao)(xiao)(xiao)(xiao)弧(hu)線(xian)(xian)圈穩定工作(zuo)并實(shi)現(xian)補償后，退出(chu)(chu)觸點(dian)(dian)消(xiao)(xiao)(xiao)(xiao)弧(hu)，待故(gu)(gu)(gu)障消(xiao)(xiao)(xiao)(xiao)除后再退出(chu)(chu)脈(mo)沖(chong)(chong)式消(xiao)(xiao)(xiao)(xiao)弧(hu)線(xian)(xian)圈。由(you)于有脈(mo)沖(chong)(chong)式消(xiao)(xiao)(xiao)(xiao)弧(hu)線(xian)(xian)圈以及低殘(can)壓過(guo)電(dian)(dian)(dian)壓吸收裝(zhuang)置和(he)(he)電(dian)(dian)(dian)阻來限制觸點(dian)(dian)消(xiao)(xiao)(xiao)(xiao)弧(hu)的(de)真空接(jie)觸器開斷(duan)引起的(de)操作(zuo)過(guo)電(dian)(dian)(dian)壓，對于瞬時(shi)性接(jie)地故(gu)(gu)(gu)障或(huo)弧(hu)光接(jie)地故(gu)(gu)(gu)障，這種組合式的(de)工作(zuo)方式克服了傳統的(de)消(xiao)(xiao)(xiao)(xiao)弧(hu)線(xian)(xian)圈或(huo)觸點(dian)(dian)消(xiao)(xiao)(xiao)(xiao)弧(hu)、不接(jie)地、小電(dian)(dian)(dian)阻接(jie)地單獨(du)應用的(de)缺陷，更加有利于故(gu)(gu)(gu)障的(de)消(xiao)(xiao)(xiao)(xiao)除，使裝(zhuang)置的(de)可靠性大(da)大(da)提(ti)高。

對(dui)于永久性的單相(xiang)接地(di)(di)故(gu)障(zhang)，完成故(gu)障(zhang)測(ce)(ce)距定位后(hou)迅速(su)啟動遠跳(tiao)或啟用觸(chu)點(dian)消(xiao)(xiao)弧(hu)工作和(he)小電(dian)(dian)(dian)流(liu)系(xi)(xi)統(tong)相(xiang)互配(pei)合(he)，觸(chu)點(dian)消(xiao)(xiao)弧(hu)直接旁路接地(di)(di)電(dian)(dian)(dian)容電(dian)(dian)(dian)流(liu)，小電(dian)(dian)(dian)流(liu)系(xi)(xi)統(tong)通過(guo)有效接地(di)(di)裝置抑(yi)制故(gu)障(zhang)電(dian)(dian)(dian)流(liu)，從而很好地(di)(di)保護故(gu)障(zhang)支路特別(bie)是電(dian)(dian)(dian)纜(lan)支路的安全(quan)，保證系(xi)(xi)統(tong)的安全(quan)運行(xing)。全(quan)電(dian)(dian)(dian)壓(ya)監(jian)測(ce)(ce)裝置監(jian)測(ce)(ce)并記(ji)錄整(zheng)個選(xuan)線(xian)、消(xiao)(xiao)弧(hu)過(guo)程(cheng)，并在(zai)系(xi)(xi)統(tong)正常運行(xing)及發生故(gu)障(zhang)時，對(dui)系(xi)(xi)統(tong)三相(xiang)電(dian)(dian)(dian)壓(ya)及其諧波、電(dian)(dian)(dian)壓(ya)閃(shan)變、弧(hu)光過(guo)電(dian)(dian)(dian)壓(ya)、雷(lei)擊過(guo)電(dian)(dian)(dian)壓(ya)、操作過(guo)電(dian)(dian)(dian)壓(ya)等穩態、暫(zan)態沖擊進行(xing)實時監(jian)測(ce)(ce)、定時記(ji)錄和(he)報警供用戶進一步分(fen)析系(xi)(xi)統(tong)的工作狀態。

TE-GMJD單(dan)相(xiang)接地(di)故障綜(zong)合管(guan)理系統簡(jian)稱（接地(di)管(guan)理系統）,是由泰隆電(dian)(dian)氣(qi)聯合電(dian)(dian)科院、華(hua)電(dian)(dian)大學科研(yan)人員(yuan)，擁有多項專利技(ji)術(shu)以及特有的(de)技(ji)術(shu)工藝，構成性能優良的(de)新(xin)型智能電(dian)(dian)網單(dan)相(xiang)接地(di)故障綜(zong)合技(ji)術(shu)保(bao)護(hu)管(guan)理的(de)智能化系統。

TE-GMJD單相(xiang)接(jie)地故障綜合管(guan)理系(xi)統(tong)(tong)由終端(duan)設(she)備(bei)接(jie)地變、磁控(kong)消弧線(xian)圈(quan)、合金(jin)接(jie)地阻尼、智(zhi)能(neng)傳感器、渦(wo)流磁控(kong)IGBT、互鎖(suo)高速(su)開關(guan)、寬頻(pin)TV、低殘壓自愈雙(shuang)安過(guo)電壓保護裝置、實時通(tong)訊技術、廣(guang)域測(ce)量系(xi)統(tong)(tong)、互聯集控(kong)管(guan)理分(fen)析決策(ce)系(xi)統(tong)(tong)構成的(de)系(xi)統(tong)(tong)化、智(zhi)能(neng)化的(de)管(guan)理體系(xi)。

三、創新點

本產品(pin)具(ju)有特有技(ji)術創新：

1、特有設計高性能熱穩定(ding)（專(zhuan)利保護(hu)）

2、以特有(you)的工藝設計滿足污穢等級IV特重地區應用(yong)（專利保護）

3、智能量測傳感(gan)器(qi)技術（專利(li)保護(hu)）

4、并聯非線性(xing)電阻的先進(jin)性(xing)技術（專(zhuan)利保(bao)護(hu)）

5、硬件(jian)設(she)計采用FPGA+DSP+ARM9三CPU結(jie)構技術設(she)計

6、互(hu)聯(lian)集控分(fen)析決(jue)策應用軟件(jian)及管(guan)理文件(jian)存(cun)儲

7、一種消弧線圈無損技術（專利保(bao)護）

8、一(yi)種(zhong)智(zhi)能快(kuai)速(su)開關（專利保(bao)護(hu)）

9、一種(zhong)自適應響應電阻(zu)（專利保護(hu)）。

四、產品功能

TE-GMJD單相接地(di)故障綜合管理系(xi)統(tong)整合了(le)中(zhong)性(xing)點非(fei)有(you)效(xiao)接地(di)系(xi)統(tong)和(he)中(zhong)性(xing)點有(you)效(xiao)接地(di)系(xi)統(tong)各自(zi)的優點，既保(bao)持了(le)6~35kV中(zhong)性(xing)點非(fei)有(you)效(xiao)接地(di)系(xi)統(tong)的供(gong)電可靠性(xing)，又解決了(le)間歇性(xing)弧光過電壓給(gei)系(xi)統(tong)絕緣帶來的安全隱患(huan)。概括起來，該(gai)裝置有(you)如下(xia)技術特點：

快(kuai)速準確的故障測距定位

主控制器(qi)(qi)(qi)采(cai)用(yong)工業計算機嵌(qian)入DSP技術、交流模擬信號數字傳輸技術，當(dang)系(xi)統(tong)發(fa)(fa)生單相(xiang)接(jie)地故(gu)(gu)障(zhang)(zhang)時(shi)，主控制器(qi)(qi)(qi)能(neng)在(zai)20ms時(shi)間內作(zuo)出響應，觸發(fa)(fa)智能(neng)開關(guan)導通。通過中性(xing)點(dian)發(fa)(fa)出可控脈沖(chong)電(dian)(dian)流，瞬時(shi)放大故(gu)(gu)障(zhang)(zhang)點(dian)接(jie)地電(dian)(dian)流信號，該(gai)接(jie)地電(dian)(dian)流可控，信號強，故(gu)(gu)障(zhang)(zhang)測距定位終(zhong)端采(cai)集器(qi)(qi)(qi)，采(cai)用(yong)高精度傳感器(qi)(qi)(qi)為(wei)進一步提高故(gu)(gu)障(zhang)(zhang)定位準確率,且智能(neng)開關(guan)導通時(shi)間為(wei)工頻首半(ban)波(bo)，采(cai)用(yong)了相(xiang)位原理，對原系(xi)統(tong)無影響。

故(gu)(gu)(gu)障(zhang)(zhang)測距定(ding)(ding)(ding)位(wei)裝(zhuang)置實時采(cai)集系(xi)統故(gu)(gu)(gu)障(zhang)(zhang)信號，應(ying)用多種故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)（根據(ju)用電(dian)實際情況(kuang)）方(fang)法(fa)(fa)進(jin)(jin)行綜合故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)，具體包括：殘流增量(liang)法(fa)(fa)及有功(gong)功(gong)率數(shu)字傳輸法(fa)(fa)、信號注入。裝(zhuang)置通過粗(cu)糙集理論確定(ding)(ding)(ding)各種故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)方(fang)法(fa)(fa)的(de)有效域，根據(ju)故(gu)(gu)(gu)障(zhang)(zhang)信號特(te)征自動對每一(yi)種故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)方(fang)法(fa)(fa)得(de)出的(de)故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)結果(guo)進(jin)(jin)行可信度量(liang)化評估，應(ying)用證(zheng)據(ju)理論將多種故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)方(fang)法(fa)(fa)融(rong)合到(dao)一(yi)起，最(zui)大限(xian)度地保證(zheng)各種故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)方(fang)法(fa)(fa)之間(jian)實現優勢互(hu)補。為了避免故(gu)(gu)(gu)障(zhang)(zhang)信號受到(dao)干擾而導致誤判，裝(zhuang)置采(cai)用了連續故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)方(fang)法(fa)(fa)，每隔一(yi)定(ding)(ding)(ding)時間(jian)(1秒(miao))重新采(cai)集數(shu)據(ju)進(jin)(jin)行分析，只要故(gu)(gu)(gu)障(zhang)(zhang)沒有消失(shi)，裝(zhuang)置的(de)故(gu)(gu)(gu)障(zhang)(zhang)定(ding)(ding)(ding)位(wei)計算就不停止。

裝置(zhi)具(ju)有(you)故障(zhang)錄波功能，可(ke)以提供故障(zhang)前(qian)后(hou)的(de)(de)波形，包括故障(zhang)發生前(qian)的(de)(de)一個周期和故障(zhang)發生后(hou)五(wu)個周期的(de)(de)波形。可(ke)保存現場(chang)故障(zhang)錄波數(shu)據(ju)和選(xuan)線結果(guo)20000次(ci)。

裝置(zhi)具備(bei)跳(tiao)閘功能，大容(rong)量(liang)觸點可以直接接入跳(tiao)閘回路(lu)，實現故(gu)障(zhang)定(ding)位(wei)后的(de)(de)故(gu)障(zhang)切除。也可與自動(dong)重合閘結(jie)合，實現故(gu)障(zhang)定(ding)位(wei)后的(de)(de)自動(dong)弧光處(chu)理和(he)進(jin)一步確認。具體根據用電企(qi)業的(de)(de)實際情況(kuang)進(jin)行方案設(she)計。
有效的故障處理

根據單相(xiang)接地(di)故障(zhang)的性質及負(fu)載的重要程度(du)，再采用(yong)不同的工作方(fang)式，讓消(xiao)弧線圈和觸(chu)點消(xiao)弧、電(dian)阻接地(di)、不接地(di)互相(xiang)配合，互相(xiang)保護(hu)，有效消(xiao)除弧光過電(dian)壓，解決單相(xiang)接地(di)故障(zhang)。具體根據用(yong)電(dian)企業(ye)的實(shi)際情(qing)況進行方(fang)案設計。
全電壓監測控制
在系(xi)統正常運行及發生故(gu)(gu)障時(shi)，可對系(xi)統的過(guo)電(dian)壓、低電(dian)壓、PT斷線、諧振、單相(xiang)接地電(dian)壓及其諧波、電(dian)壓閃(shan)變、弧光過(guo)電(dian)壓、雷(lei)擊過(guo)電(dian)壓、操作過(guo)電(dian)壓等(deng)穩(wen)態(tai)、暫態(tai)沖擊進行實(shi)時(shi)監(jian)測、定時(shi)記錄、報警，供(gong)用戶分析系(xi)統的工作狀態(tai)及判(pan)斷故(gu)(gu)障原因。