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使(shi)用直流(liu)高壓發生器前(qian)應查看(kan)其完好(hao)性，聯(lian)接(jie)(jie)電纜線不(bu)該有斷路和短路，設備無決(jue)裂等損(sun)壞，將機(ji)箱、倍壓筒放(fang)置到(dao)適宜的(de)安全的(de)方(fang)位(wei)，別離聯(lian)接(jie)(jie)好(hao)電源(yuan)線、電纜線和接(jie)(jie)地(di)(di)線，維護接(jie)(jie)地(di)(di)線與(yu)作業接(jie)(jie)地(di)(di)線以及放(fang)電棒的(de)接(jie)(jie)地(di)(di)線均應獨自(zi)接(jie)(jie)到(dao)試品(pin)的(de)地(di)(di)線上并(bing)保證(zheng)接(jie)(jie)地(di)(di)，禁止各接(jie)(jie)地(di)(di)線彼此串聯(lian)運(yun)用，防止擊穿時地(di)(di)電位(wei)舉高構成反擊，損(sun)壞儀器。
首先查看電(dian)(dian)源開(kai)關(guan)是(shi)否(fou)在(zai)(zai)關(guan)斷(duan)的(de)方(fang)(fang)位(wei)(wei)上(shang)，并(bing)查看調壓(ya)(ya)電(dian)(dian)位(wei)(wei)器應(ying)在(zai)(zai)零(ling)位(wei)(wei)上(shang)，過(guo)電(dian)(dian)壓(ya)(ya)維護整定(ding)撥盤開(kai)關(guan)設置(zhi)在(zai)(zai)恰當的(de)方(fang)(fang)位(wei)(wei)上(shang)，一(yi)般(ban)為1.10~1.20倍測驗電(dian)(dian)壓(ya)(ya)值，直流高壓(ya)(ya)發生器空載升壓(ya)(ya)驗證過(guo)電(dian)(dian)壓(ya)(ya)維護整定(ding)值，請認準電(dian)(dian)源是(shi)單相溝通220V，50Hz接(jie)通電(dian)(dian)源開(kai)關(guan)，此刻綠(lv)燈(deng)亮，表明電(dian)(dian)源接(jie)通，按(an)赤色按(an)鈕，則(ze)紅燈(deng)亮，表明高壓(ya)(ya)接(jie)通。
順(shun)時(shi)針方向陡峭調(diao)理調(diao)壓(ya)(ya)電(dian)位器，輸出端即從零(ling)開端升(sheng)壓(ya)(ya)，電(dian)壓(ya)(ya)表(biao)顯現(xian)為負載試(shi)品上的電(dian)壓(ya)(ya)值，電(dian)流(liu)表(biao)則顯現(xian)試(shi)品上流(liu)過的電(dian)流(liu)與(yu)一(yi)切走漏電(dian)流(liu)之和，電(dian)流(liu)以(yi)微安為單位，升(sheng)到所(suo)需的電(dian)壓(ya)(ya)后，按規則時(shi)刻記載電(dian)流(liu)表(biao)讀數，并查看控制箱(xiang)及輸出電(dian)纜有無異常現(xian)象及動(dong)靜，降壓(ya)(ya)，將調(diao)壓(ya)(ya)電(dian)位器回零(ling)后，隨后按綠色按鈕(niu)，堵截高(gao)壓(ya)(ya)并封閉電(dian)源開關。
我(wo)們在做負載實驗前，將(jiang)高壓(ya)(ya)屏蔽微安(an)(an)表安(an)(an)裝到(dao)倍(bei)壓(ya)(ya)筒上(shang)的(de)高壓(ya)(ya)輸出端上(shang)，并將(jiang)配套的(de)專用高壓(ya)(ya)線別(bie)離接(jie)到(dao)微安(an)(an)表上(shang)和被試品(pin)上(shang)，查看直流高壓(ya)(ya)發生器、放電棒、倍(bei)壓(ya)(ya)筒、試品(pin)聯接(jie)線、接(jie)地(di)線是(shi)否(fou)正確，接(jie)地(di)線聯接(jie)是(shi)否(fou)牢靠，查看高壓(ya)(ya)安(an)(an)全間(jian)隔是(shi)否(fou)符合要求，方可(ke)開端進(jin)行試品(pin)的(de)高壓(ya)(ya)實驗。
查(cha)看儀(yi)器等無(wu)異常(chang)情況后，接通單相溝通220V電(dian)(dian)(dian)源開關，此刻綠燈(deng)(deng)亮，表明(ming)電(dian)(dian)(dian)源接通，可開端(duan)進行試(shi)品的直流走(zou)漏和直流耐(nai)壓(ya)(ya)實(shi)驗，按赤色(se)按鈕(niu)，則紅燈(deng)(deng)亮，表明(ming)高(gao)壓(ya)(ya)接通，待升高(gao)壓(ya)(ya)，順時(shi)針方向陡峭調理調壓(ya)(ya)電(dian)(dian)(dian)位器，輸出(chu)端(duan)即從零開端(duan)升壓(ya)(ya)，升壓(ya)(ya)速度以(yi)每秒3-5kV上升實(shi)驗電(dian)(dian)(dian)壓(ya)(ya)為宜。
因此大家在使用直流高壓發生器之前，需(xu)要熟讀說明(ming)書，嚴格(ge)按照說明(ming)書來進行操作。
