電機保護器的(de)操作方法_電機保護器的(de)故障維修
一、電機保(bao)護器的操作(zuo)方法
1、過電(dian)(dian)流(liu)保護設定方法:把面板上的撥動開關撥至設定位置,調(diao)整電(dian)(dian)流(liu)調(diao)節(jie)電(dian)(dian)位器(qi)使電(dian)(dian)流(liu)顯(xian)示器(qi)數(shu)字為(wei)該電(dian)(dian)動機的額定電(dian)(dian)流(liu)值,再把開關撥到(dao)運行位置,此時顯(xian)示器(qi)上的數(shu)字為(wei)該電(dian)(dian)動機的工作電(dian)(dian)流(liu)。
2、啟(qi)動延(yan)時設定方法:全壓啟(qi)動可調至最小(xiao),總之啟(qi)動延(yan)時時間要(yao)(yao)根(gen)據用戶設備需要(yao)(yao)自行(xing)調整(zheng)。
3、復位(wei)方(fang)法:當電(dian)機發生(sheng)故障跳閘后,故障指示燈(deng)亮,保護裝置處(chu)于(yu)記憶(yi)狀態,按下面板上復位(wei)健方(fang)可復。
二、電機保(bao)護器的功能與故障檢修(xiu)
1、互感器(qi)固(gu)定在交(jiao)流接觸器(qi)下方(fang)(fang)為宜,采用螺絲固(gu)定安(an)裝方(fang)(fang)式:三相主線(xian)(xian)路分別(bie)穿過互感器(qi)的(de)三個孔(kong);按接線(xian)(xian)圖接好(hao)線(xian)(xian)并檢查(cha)無誤(wu)后,方(fang)(fang)可通電調(diao)式(停(ting)機時才(cai)可修改參數)。
2、按功能鍵一次。顯(xian)(xian)示(shi)設置菜單:顯(xian)(xian)示(shi)器(qi)顯(xian)(xian)示(shi)。表示(shi)進入修改(gai)功能參數設定。
3、按功能鍵二次。顯(xian)示(shi)過載電流設定:顯(xian)示(shi)器右(you)邊顯(xian)示(shi)爍(shuo)按數(shu)據鍵選擇設定的(de)數(shu)字,每(mei)按數(shu)據鍵一次數(shu)字遞增“1”,按移位鍵該位閃爍(shuo)再(zai)按數(shu)據鍵改參數(shu)。
4、按(an)(an)功能(neng)鍵三(san)次。顯(xian)示過(guo)載序(xu)號設定:顯(xian)示器右邊顯(xian)示閃爍按(an)(an)數(shu)據(ju)鍵修改參數(shu),每(mei)按(an)(an)數(shu)據(ju)鍵一次數(shu)字(zi)遞增“1”。
5、按(an)(an)功(gong)能(neng)鍵(jian)(jian)(jian)四次。顯(xian)(xian)示(shi)啟動延時設(she)定:顯(xian)(xian)示(shi)器右(you)邊(bian)顯(xian)(xian)示(shi)閃(shan)爍按(an)(an)數(shu)(shu)(shu)據(ju)鍵(jian)(jian)(jian)選擇設(she)定的數(shu)(shu)(shu)字,每(mei)按(an)(an)數(shu)(shu)(shu)據(ju)鍵(jian)(jian)(jian)一次數(shu)(shu)(shu)字遞增“1”,按(an)(an)移位(wei)(wei)鍵(jian)(jian)(jian)該位(wei)(wei)閃(shan)爍再(zai)按(an)(an)數(shu)(shu)(shu)據(ju)鍵(jian)(jian)(jian)修改參數(shu)(shu)(shu)。
6、按功(gong)能(neng)鍵五次。顯示輕載電(dian)流(liu)設(she)定:(預警電(dian)流(liu)值設(she)定)顯示器右邊顯示閃(shan)(shan)爍按數(shu)據(ju)鍵選擇(ze)設(she)定的數(shu)字,每按數(shu)據(ju)鍵一次數(shu)字遞(di)增“1”,按移位鍵該位閃(shan)(shan)爍再按數(shu)據(ju)鍵修改參數(shu)。(設(she)為“0”時,該功(gong)能(neng)關閉)
7、按(an)功能(neng)(neng)鍵(jian)六次。顯(xian)示來(lai)電自啟動(dong)延時設(she)定(ding):顯(xian)示器右邊(bian)顯(xian)示閃爍按(an)數(shu)(shu)據(ju)鍵(jian)選擇設(she)定(ding)的數(shu)(shu)字(zi),每按(an)數(shu)(shu)據(ju)鍵(jian)一次數(shu)(shu)字(zi)遞增(zeng)“1”,按(an)移位鍵(jian)該(gai)位閃爍再(zai)按(an)數(shu)(shu)據(ju)鍵(jian)修改參數(shu)(shu)。(此項功能(neng)(neng)僅(jin)對來(lai)電自啟動(dong)有(you)效)
8、按(an)功能鍵七次。顯示漏電(dian)保護設定:顯示器右邊顯示閃爍再按(an)數據鍵修改(gai)參數,有關數字(zi)表(biao)示的(de)漏電(dian)電(dian)流值(1=500mA.2=1000mA.3=1500mA.4=2000mA.5=2500mA.6=3000mA.7=3500mA.0=關閉)
9、按(an)功能(neng)鍵(jian)(jian)八次(ci)。顯示本機地址(zhi)號(hao)設(she)定:顯示器右邊顯示閃(shan)爍按(an)數據(ju)鍵(jian)(jian)選擇設(she)定的(de)數字(zi),每按(an)數據(ju)鍵(jian)(jian)一次(ci)數字(zi)遞增“1”,按(an)移位(wei)(wei)鍵(jian)(jian)該(gai)位(wei)(wei)閃(shan)爍再按(an)數據(ju)鍵(jian)(jian)修改地址(zhi)號(hao)。(設(she)為“0”時,該(gai)項功能(neng)為手動復位(wei)(wei))
10、按功(gong)能(neng)(neng)鍵(jian)(jian)九次(ci)。顯(xian)示故障復(fu)位(wei)設(she)定:顯(xian)示器(qi)右(you)邊顯(xian)示閃爍按數(shu)(shu)(shu)據鍵(jian)(jian)選擇設(she)定的數(shu)(shu)(shu)字(zi),每按數(shu)(shu)(shu)據鍵(jian)(jian)一(yi)次(ci)數(shu)(shu)(shu)字(zi)遞增“1”,按移(yi)位(wei)鍵(jian)(jian)該位(wei)閃爍再按數(shu)(shu)(shu)據鍵(jian)(jian)修改復(fu)位(wei)時間。(設(she)為(wei)“0”時,該功(gong)能(neng)(neng)關閉(bi)為(wei)手(shou)動復(fu)位(wei))
11、在工(gong)(gong)作停機(ji)后,按移位鍵3秒(miao)顯(xian)示循(xun)環故障(zhang)記錄,3秒(miao)后自動(dong)(dong)復(fu)位,按數據鍵查詢電動(dong)(dong)機(ji)工(gong)(gong)作時(shi)間(jian)(jian)、運轉時(shi)間(jian)(jian)統計。
12、摸擬量DC4-20mA 接口:20mA對應于保護監控器默認為規格電流值。
例:過(guo)電(dian)流設定值(zhi)為30A時,所(suo)對應的電(dian)流值(zhi)30A*2=60A。
13、運運狀態按數(shu)據鍵查看工作(zuo)(zuo)電壓,3秒后(hou)自動復(fu)(fu)位(wei):按復(fu)(fu)位(wei)鍵輪流(liu)查看A、B、C三相工作(zuo)(zuo)電流(liu);3秒后(hou)回(hui)到A相電流(liu);按功能(neng)鍵可查閱設(she)置參數(shu)但不能(neng)修改參數(shu)。上位(wei)機(ji)對(dui)下位(wei)機(ji)監控時面板上的通訊(xun)指(zhi)示燈亮。
14、故障狀態:面板上的(de)對應指示(shi)燈被點(dian)亮,顯(xian)示(shi)器顯(xian)示(shi)故障動作值(zhi)記錄,按復位(wei)鍵保(bao)護(hu)器進入(ru)復位(wei)。
運(yun)行(xing)操作(zuo)與故障指(zhi)示(shi):設置完畢或保護器(qi)再次接(jie)入(ru)工作(zuo)電源后,無自(zi)啟(qi)動(dong)(dong)功(gong)能(neng)時(shi)(shi)(shi),顯示(shi)整定(ding)電流值A,按(an)數據(ju)鍵(jian)顯示(shi)電壓U3秒種自(zi)動(dong)(dong)返回:有自(zi)啟(qi)動(dong)(dong)功(gong)能(neng)時(shi)(shi)(shi)顯示(shi)自(zi)啟(qi)動(dong)(dong)時(shi)(shi)(shi)間(jian)倒計時(shi)(shi)(shi)。自(zi)啟(qi)動(dong)(dong)時(shi)(shi)(shi)間(jian)過后進入(ru)電動(dong)(dong)機(ji)啟(qi)動(dong)(dong)狀態,電機(ji)啟(qi)動(dong)(dong)且顯示(shi)啟(qi)動(dong)(dong)時(shi)(shi)(shi)間(jian)倒計時(shi)(shi)(shi)。啟(qi)動(dong)(dong)時(shi)(shi)(shi)間(jian)過后進入(ru)運(yun)行(xing)狀態。
在運行過(guo)(guo)程中,循環顯(xian)(xian)示(shi)(shi)(shi)A、B、C相電流(liu)值(zhi),每項(xiang)顯(xian)(xian)示(shi)(shi)(shi)停留時(shi)間(jian)為(wei)2秒(miao)。循環顯(xian)(xian)示(shi)(shi)(shi)中,按任何鍵一(yi)次則(ze)鎖(suo)定(ding)顯(xian)(xian)示(shi)(shi)(shi)該項(xiang)值(zhi),再按任何鍵一(yi)次則(ze)顯(xian)(xian)示(shi)(shi)(shi)工作電壓(ya)值(zhi),再按任何鍵一(yi)次則(ze)返回(hui)循環顯(xian)(xian)示(shi)(shi)(shi)。當(dang)電動(dong)機(ji)出現過(guo)(guo)流(liu)時(shi),過(guo)(guo)流(liu)指示(shi)(shi)(shi)等閃(shan)爍,且過(guo)(guo)流(liu)倍數越(yue)大,過(guo)(guo)流(liu)燈(deng)閃(shan)爍得(de)越(yue)快,直至跳閘(zha)。如電流(liu)恢復(fu)正常,閃(shan)爍自動(dong)消失。
當(dang)檢測到(dao)故(gu)(gu)障(zhang)且(qie)到(dao)動(dong)(dong)作時(shi)間時(shi),發出跳閘信號,相(xiang)應故(gu)(gu)障(zhang)指(zhi)示燈(deng)亮,顯示故(gu)(gu)障(zhang)代碼(ma)。無自啟(qi)(qi)動(dong)(dong)功(gong)能(neng)時(shi),排除故(gu)(gu)障(zhang)按復位鍵可(ke)自啟(qi)(qi)動(dong)(dong)電(dian)動(dong)(dong)機;有自啟(qi)(qi)動(dong)(dong)功(gong)能(neng)時(shi),保護器必須(xu)斷電(dian)30秒后重新加電(dian),才可(ke)再次啟(qi)(qi)動(dong)(dong)。
推薦閱讀:電動機保護器常識與問答