直流高壓試驗器特色功能(neng)講解
⑴ 智能輸出及電(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)流測量電(dian)(dian)(dian)(dian)纜快速聯接(jie)多芯插(cha)(cha)座:用于機箱與倍壓部分的聯接(jie)。聯接(jie)時(shi)只需將電(dian)(dian)(dian)(dian)纜插(cha)(cha)頭(tou)(tou)上(shang)(shang)的白點對準(zhun)插(cha)(cha)座上(shang)(shang)的白點順時(shi)針(zhen)方向轉(zhuan)(zhuan)動到位即可。拆卸(xie)時(shi)只需逆時(shi)針(zhen)轉(zhuan)(zhuan)動電(dian)(dian)(dian)(dian)纜插(cha)(cha)頭(tou)(tou)即可。注意(yi):安裝(zhuang)、拆卸(xie)插(cha)(cha)頭(tou)(tou)時(shi),請握(wo)緊插(cha)(cha)頭(tou)(tou)的金屬圓環處旋轉(zhuan)(zhuan)。嚴禁(jin)手握(wo)電(dian)(dian)(dian)(dian)纜線(xian)旋轉(zhuan)(zhuan)及拉撥電(dian)(dian)(dian)(dian)纜線(xian)旋轉(zhuan)(zhuan),以(yi)免(mian)造(zao)成(cheng)插(cha)(cha)頭(tou)(tou)與電(dian)(dian)(dian)(dian)纜線(xian)之間(jian)斷線(xian)。
⑵ LCD液晶顯示屏：直流高(gao)壓試(shi)驗器顯示(shi)直流高壓(ya)輸出電(dian)壓(ya),單(dan)(dan)(dan)位(wei)為(wei)kV,最小分辨率為(wei)±0.1kV；顯示(shi)高壓(ya)輸出電(dian)流,單(dan)(dan)(dan)位(wei)為(wei)uA,最小分辨率為(wei)±0.1uA；顯示(shi)設定電(dian)壓(ya)單(dan)(dan)(dan)位(wei)為(wei)kV,每次開(kai)機默認上(shang)次設定電(dian)壓(ya)值;顯示(shi)每次試驗設定好(hao)的時間.
⑶電(dian)源輸入插座(zuo):單(dan)相交流220V±10%,50Hz。將隨機(ji)配置的電(dian)源線與電(dian)源輸入插座(zuo)相聯(插座(zuo)內自帶保險(xian)(xian)管10A或單(dan)獨保險(xian)(xian)座(zuo))。
⑷接(jie)地(di)接(jie)線柱(zhu):此接(jie)地(di)端子(zi)與倍壓(ya)筒接(jie)地(di)端子(zi)及試品接(jie)地(di)聯接(jie)為一點后,再與接(jie)地(di)網相連。
⑸設定功能(neng)鍵(jian)：開機(ji)后(hou)或者每次(ci)試驗(yan)結束后(hou)按此(ci)鍵(jian)后(hou)方(fang)可進入下(xia)一(yi)菜(cai)單(dan)，然(ran)后(hou)根據試驗(yan)要求設定每次(ci)試驗(yan)所需要的電壓和時間。
⑹選擇功能鍵：選擇鍵用來移動光標，進入你所要選擇的界面。直流高(gao)壓試(shi)驗器在特殊情況下還可長(chang)按(an)此(ci)鍵3秒解除接(jie)(jie)地不(bu)(bu)良保護報警功能（如(ru)采用發(fa)電(dian)機作為電(dian)源或現場接(jie)(jie)地不(bu)(bu)良但仍(reng)可試驗的情況下。）
⑺計時功能鍵：直流高壓試驗(yan)器開機后(hou)按此(ci)功能(neng)鍵可以(yi)設(she)定時(shi)間日期，進(jin)入試驗菜單后(hou)可以(yi)對(dui)每次試驗的時(shi)間進(jin)行倒計時(shi)，到(dao)你設(she)定的時(shi)間后(hou)伴(ban)隨三聲蜂(feng)鳴報(bao)警，提醒你設(she)定的試驗時(shi)間已到(dao)，可重復計時(shi)。
⑻75%VDC-1mA用(yong)黃(huang)色(se)(se)帶燈(deng)按(an)(an)鈕(niu):紅燈(deng)亮時(shi)有效。當按(an)(an)下黃(huang)色(se)(se)按(an)(an)鈕(niu)后黃(huang)燈(deng)亮,輸出高(gao)壓降(jiang)到(dao)原來(lai)的0.75倍,并(bing)保持(chi)此(ci)(ci)狀態,此(ci)(ci)功能是(shi)專門為氧(yang)化(hua)鋅避雷器快速(su)測量用(yong)0.75VDC-1mA,按(an)(an)下綠色(se)(se)按(an)(an)鈕(niu)紅燈(deng)、黃(huang)燈(deng)均滅,高(gao)壓切斷并(bing)退出0.75倍狀態。
⑼綠色帶燈按鈕:綠燈亮表示電源已接通及高壓斷開。直(zhi)流高壓試(shi)驗器在紅燈(deng)亮狀態下(xia),按(an)下(xia)綠(lv)色(se)按(an)鈕(niu),紅燈(deng)滅(mie)綠(lv)燈(deng)亮,高壓回路切(qie)斷。重復(fu)按(an)此按(an)鍵(jian)就能復(fu)位到開機初始(shi)狀態。
⑽紅(hong)(hong)(hong)色帶燈(deng)(deng)(deng)按(an)(an)(an)(an)(an)鈕(niu)(niu)、高壓接通按(an)(an)(an)(an)(an)鈕(niu)(niu)、高壓指示(shi)(shi)燈(deng)(deng)(deng):在(zai)綠燈(deng)(deng)(deng)亮的狀(zhuang)態下(xia),按(an)(an)(an)(an)(an)下(xia)紅(hong)(hong)(hong)色按(an)(an)(an)(an)(an)鈕(niu)(niu)后,紅(hong)(hong)(hong)燈(deng)(deng)(deng)亮綠燈(deng)(deng)(deng)滅,表示(shi)(shi)高壓回路接通。此時(shi)可升壓。此按(an)(an)(an)(an)(an)鈕(niu)(niu)須(xu)在(zai)電(dian)壓調節電(dian)位器回零狀(zhuang)態下(xia)才(cai)有效。如按(an)(an)(an)(an)(an)下(xia)紅(hong)(hong)(hong)色按(an)(an)(an)(an)(an)鈕(niu)(niu)紅(hong)(hong)(hong)燈(deng)(deng)(deng)亮,綠燈(deng)(deng)(deng)仍亮,但(dan)松開按(an)(an)(an)(an)(an)鈕(niu)(niu)紅(hong)(hong)(hong)燈(deng)(deng)(deng)滅綠燈(deng)(deng)(deng)亮,表示(shi)(shi)機(ji)(ji)內保護電(dian)路已工作,此時(shi)必須(xu)關機(ji)(ji)檢查過壓整定是否小于滿(man)量程的5%及有無其它(ta)故障,檢查無誤后再開機(ji)(ji)。
⑾粗調(diao)(diao)電(dian)(dian)壓(ya)調(diao)(diao)節(jie)電(dian)(dian)位器(qi):該電(dian)(dian)位器(qi)粗調(diao)(diao)多(duo)圈電(dian)(dian)位器(qi),順時針(zhen)旋轉(zhuan)為升壓(ya),反之為降壓(ya)。此電(dian)(dian)位器(qi)具備控制電(dian)(dian)子零位保護(hu)功能。因此升壓(ya)前(qian)必須(xu)先回(hui)零位。電(dian)(dian)壓(ya)調(diao)(diao)節(jie)精度0.1%kV,試驗完畢后,該電(dian)(dian)位器(qi)應回(hui)到零位上。
⑿細調電壓調節電位器:為調整精度用,該電位器微調多圈電位器,順時針旋轉為升壓,升壓很微慢,反之為降壓。直流高壓試驗器細調(diao)一般為(wei)最后(hou)用于調(diao)整(zheng)電壓準(zhun)確數和做氧化鋅避雷器試驗(yan),最后(hou)調(diao)整(zheng)電流準(zhun)確數用。試驗(yan)完畢后(hou),該(gai)電位器應回到零位上(shang)。
⒀電(dian)源開關(guan):將此開關(guan)朝上(shang)邊按下,電(dian)源接通(tong),綠燈(deng)亮;反之為關(guan)斷(duan)。避免(mian)用此開關(guan)直接關(guan)斷(duan)高壓,關(guan)機(ji)時,首先使電(dian)壓粗調(diao)和微調(diao)電(dian)位器(qi)都回到零位后,然后關(guan)閉電(dian)源開關(guan)。
