本(ben)目錄是上海徐吉(ji)電氣有限公司為您精(jing)心選購(gou)的：

HDGC3990 直流斷路器安秒特性測試儀

　　目前變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)站(zhan)的(de)(de)直(zhi)(zhi)(zhi)流(liu)饋電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)網絡多(duo)采(cai)用(yong)樹(shu)狀結構(gou)，從蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池到(dao)站(zhan)內用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)備(bei)，一(yi)般經過三級配電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，每級配電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)大(da)多(duo)采(cai)用(yong)直(zhi)(zhi)(zhi)流(liu)斷路(lu)器(qi)(qi)作(zuo)為(wei)保(bao)護電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)。由于上下級直(zhi)(zhi)(zhi)流(liu)斷路(lu)器(qi)(qi)保(bao)護動作(zuo)特性不匹(pi)配，在直(zhi)(zhi)(zhi)流(liu)系(xi)(xi)統運行(xing)過程中(zhong)，當(dang)下級用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)備(bei)出(chu)現短路(lu)故障時，經常(chang)引(yin)(yin)起(qi)上一(yi)級直(zhi)(zhi)(zhi)流(liu)斷路(lu)器(qi)(qi)的(de)(de)越級跳(tiao)閘，從而(er)(er)引(yin)(yin)起(qi)其(qi)它饋電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線路(lu)的(de)(de)斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)事故，進而(er)(er)引(yin)(yin)起(qi)變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)站(zhan)一(yi)次設(she)備(bei)如高壓開關、變(bian)壓器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)等的(de)(de)事故。為(wei)防止因(yin)直(zhi)(zhi)(zhi)流(liu)斷路(lu)器(qi)(qi)及其(qi)它直(zhi)(zhi)(zhi)流(liu)保(bao)護電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)動作(zuo)特性不匹(pi)配帶來的(de)(de)隱(yin)患，國(guo)家電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)網公司對(dui)(dui)于新裝和運行(xing)中(zhong)的(de)(de)直(zhi)(zhi)(zhi)流(liu)保(bao)護電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，規(gui)(gui)定(ding)(ding)(ding)了必須進行(xing)安秒(miao)特性測(ce)試，保(bao)證性能與設(she)計(ji)相符，以確(que)保(bao)直(zhi)(zhi)(zhi)流(liu)回路(lu)級差(cha)配合(he)的(de)(de)正確(que)性。2005年發布的(de)(de)《直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源系(xi)(xi)統運行(xing)規(gui)(gui)范》第十(shi)二條(tiao)第八(ba)款規(gui)(gui)定(ding)(ding)(ding)“直(zhi)(zhi)(zhi)流(liu)熔斷器(qi)(qi)和空(kong)氣斷路(lu)器(qi)(qi)應采(cai)用(yong)質量合(he)格的(de)(de)產品(pin)，其(qi)熔斷體或定(ding)(ding)(ding)值應按有關規(gui)(gui)定(ding)(ding)(ding)分(fen)級配置和整定(ding)(ding)(ding)，并定(ding)(ding)(ding)期進行(xing)核(he)對(dui)(dui)，防止因(yin)其(qi)不正確(que)動作(zuo)而(er)(er)擴大(da)事故”；《直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源系(xi)(xi)統技術監督(du)規(gui)(gui)定(ding)(ding)(ding)》中(zhong)規(gui)(gui)定(ding)(ding)(ding)：“…自動空(kong)氣斷路(lu)器(qi)(qi)使(shi)用(yong)前應進行(xing)特性和動作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)抽查。…”；《預防直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源系(xi)(xi)統事故措施》第十(shi)一(yi)條(tiao)中(zhong)規(gui)(gui)定(ding)(ding)(ding)：“…使(shi)用(yong)前宜進行(xing)安秒(miao)特性和動作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)抽檢(jian)…”。本儀器(qi)(qi)是現場檢(jian)測(ce)和判(pan)定(ding)(ding)(ding)直(zhi)(zhi)(zhi)流(liu)斷路(lu)器(qi)(qi)保(bao)護特性是否正常(chang)的(de)(de)*工(gong)具！

　　直(zhi)(zhi)流(liu)(liu)(liu)(liu)保護電(dian)器(qi)(qi)的(de)安秒特性(xing)一般(ban)在*實驗室或檢(jian)(jian)測站(zhan)進行測試，設(she)備占地面積大，需(xu)要配置專門的(de)充電(dian)裝(zhuang)置和大電(dian)流(liu)(liu)(liu)(liu)負(fu)載箱，操作(zuo)(zuo)復雜；部(bu)分運行單(dan)位利用變電(dian)站(zhan)蓄電(dian)池組對直(zhi)(zhi)流(liu)(liu)(liu)(liu)保護電(dian)器(qi)(qi)的(de)級(ji)差配合進行試驗，但無(wu)法準確測試其電(dian)流(liu)(liu)(liu)(liu)-動(dong)作(zuo)(zuo)時間(jian)特性(xing)。因(yin)而造成(cheng)直(zhi)(zhi)流(liu)(liu)(liu)(liu)系統投運后(hou)，現場檢(jian)(jian)修(xiu)維護人員因(yin)不具(ju)備相應的(de)測試手段和工具(ju)，無(wu)法檢(jian)(jian)驗直(zhi)(zhi)流(liu)(liu)(liu)(liu)保護電(dian)器(qi)(qi)的(de)安秒特性(xing)是否滿足(zu)要求。

　　根據直(zhi)(zhi)流(liu)保(bao)護電器安秒特性(xing)測(ce)試(shi)的(de)(de)(de)現實狀況，本公(gong)司推出了一種適合(he)變電站現場使(shi)用、便于攜帶、自 動化(hua)程(cheng)度(du)高的(de)(de)(de)直(zhi)(zhi)流(liu)斷路器安秒特性(xing)測(ce)試(shi)系(xi)(xi)統，可(ke)以為運(yun)行(xing)維護部門提供直(zhi)(zhi)流(liu)保(bao)護電器動作(zuo)特性(xing)的(de)(de)(de)測(ce)試(shi)手段，對(dui)直(zhi)(zhi)流(liu)保(bao)護電器的(de)(de)(de)動作(zuo)特性(xing)以及(ji)級差(cha)配合(he)進(jin)行(xing)校驗，以便提高直(zhi)(zhi)流(liu)系(xi)(xi)統運(yun)行(xing)的(de)(de)(de)可(ke)靠性(xing)，保(bao)證(zheng)電網的(de)(de)(de)安全可(ke)靠運(yun)行(xing)。

　　本測試(shi)系(xi)統適用(yong)于額定電(dian)流1A～500A直流斷路器(qi)的安(an)秒特性(xing)測試(shi)，并可用(yong)于6A～100A直流熔斷器的(de)安秒特性測試。

　　◆自(zi)動測量在各種電流(liu)下(xia)斷(duan)路器(qi)脫扣時間；

　　◆設備具備自(zi)保護功能，保證測試(shi)過程的安全性(xing)和可靠性(xing)；

　　◆微控制器技(ji)術，對(dui)直流斷路器分斷特性進行測試，測量準確；

　　◆根據(ju)要求自動產(chan)生(sheng)穩定(ding)的(de)直流電流輸(shu)出，響(xiang)應時(shi)間快(kuai)；

　　◆先進的測(ce)試技術，可對斷路器分斷時間進行高精度測(ce)試，測(ce)試精 度高達0.1ms

　　◆可自動繪制斷路器保(bao)護特性曲線（安秒曲線）；

　　◆具有數據(ju)(ju)統計分(fen)析功能(neng)，可打印數據(ju)(ju)報表和(he)特性(xing)曲線

　　◆用筆記本電腦現(xian)場聯機操(cao)作；

　　1、全自動測試，裝置(zhi)按菜單方式完(wan)成各(ge)種試驗功能。

　　2、主機系(xi)統采用新型高速微處理器及(ji)大(da)規模集成電路，可靠性(xing)高，性(xing)能優良(liang)。

　　3、自帶(dai)大屏幕(mu)圖形（320*240點陣）LCD、全中文(wen)圖形界面，操作(zuo)簡(jian)單，使用方便。

　　4、裝置自(zi)動產生恒定大電流(liu)，恒流(liu)精度高(gao)，負載能(neng)(neng)力強，能(neng)(neng)長時間(jian)提供穩(wen)定的大電流(liu)。

　　5、能(neng)進行任意電流(liu)下直(zhi)流(liu)斷路器的保(bao)護(hu)特性測試。

　　6、能進行斷路器級聯測試。

　　7、可接(jie)計算機，由計算機控制操作。

　　8、可記錄(lu)保存zui近100保護特(te)性測試記錄(lu)，供(gong)隨時查詢(xun)，也可將記錄(lu)數據(ju)上傳至計算機。

　　1、工作(zuo)電(dian)源(yuan)：交流220V±15％

　　2、zui大輸出電流：直(zhi)流500A（可擴展至1000A或更大）

　　3、輸出電源穩定(ding)度：0.5％

　　4、電流調整范圍：0-500A（1000A)

　　5、電流輸出響應(ying)時間：5ms

　　6、測試(shi)方法：自動時間(jian)調量精度：1ms

　　7、顯示方式(shi)：中文圖形（LCD）