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直流高压发生器需了解的十一个步骤

更新时间:2022-07-13点击次数:277次
直流高压发生器需了解的十一个步骤

直(zhi)流(liu)(liu)高(gao)(gao)压发(fa)(fa)生器(qi)(直(zhi)高(gao)(gao)发(fa)(fa))主要(yao)用来(lai)进行(xing)氧化锌避雷器(qi)、电(dian)力电(dian)缆、发(fa)(fa)电(dian)机、变(bian)压器(qi)、开关(guan)等设(she)备(bei)进行(xing)直(zhi)流(liu)(liu)高(gao)(gao)压试(shi)验和泄漏电(dian)流(liu)(liu)试(shi)验,具(ju)有测试(shi)速度(du)快、纹波系数(shu)小、安全可(ke)靠(kao)等特(te)点。但很多(duo)电(dian)力工作者对该设(she)备(bei)的(de)操(cao)作不熟(shu)练,想要(yao)熟(shu)练使(shi)用该设(she)备(bei),就(jiu)要(yao)先熟(shu)悉(xi)该设(she)备(bei)的(de)各个功能组成(cheng),下面,小编详细(xi)介绍(shao)下直(zhi)流(liu)(liu)高(gao)(gao)压发(fa)(fa)生器(qi)的(de)具(ju)体操(cao)作步骤(zhou)~

一、 直(zhi)流高(gao)压发生器(qi)(直(zhi)高(gao)发)使用前(qian)应检查(cha)其完(wan)整(zheng)性,不(bu)应损坏(huai)连接(jie)电缆和短路,设备(bei)无断裂和其他损坏(huai)。

二(er)、将箱(xiang)体和电(dian)压倍增器气缸(gang)置于合适的(de)(de)位置,分别连接(jie)电(dian)源线、电(dian)缆线和接(jie)地(di)线。保护接(jie)地(di)线和工作接(jie)地(di)线的(de)(de)接(jie)地(di)线,以及放电(dian)棒的(de)(de)接(jie)地(di)线,应分别与试样的(de)(de)接(jie)地(di)线连接(jie)(即(ji)一(yi)点接(jie)地(di)),严禁相互联(lian)系(xi)。为此,应采用专用地(di)线。

三(san)、将电(dian)(dian)源开关置(zhi)(zhi)于关闭位(wei)(wei)置(zhi)(zhi),检查(cha)电(dian)(dian)压调节器电(dian)(dian)位(wei)(wei)计(ji)应处于零(ling)位(wei)(wei)。过电(dian)(dian)压保(bao)护(hu)设定值一般是试验电(dian)(dian)压的(de)1.1倍。

四(si)、空载升压验(yan)证(zheng)过电压保护整定是敏(min)感的(de)。

五、当红(hong)灯亮时,打开(kai)直流高(gao)压发生器(qi)电(dian)源开(kai)关,表(biao)示电(dian)源已接(jie)通。

六、按(an)下绿(lv)(lv)色(se)按(an)钮,绿(lv)(lv)灯,这意味(wei)着高压。

七、按顺时(shi)针方(fang)向(xiang)调整(zheng)电压调节(jie)器,输(shu)出(chu)(chu)端从零开(kai)始,上升到(dao)所(suo)需电压,根据规(gui)定的时(shi)间(jian)记录电表读(du)数,检查控制箱和高压输(shu)出(chu)(chu)线路是否(fou)有异常现象和声(sheng)音。

八、降低(di)电(dian)(dian)压(ya),使电(dian)(dian)压(ya)调节器归零,然后按下红色按钮,切断高压(ya),关(guan)闭电(dian)(dian)源(yuan)开关(guan)。

九、对(dui)样(yang)品进行(xing)了漏电和直(zhi)流电压电阻试(shi)验(yan)。经检查(cha)确认测试(shi)器无异(yi)常状态后(hou),可启动试(shi)验(yan)的漏电和直(zhi)流电压测试(shi)。连接好样(yang)品、接地线等,检查(cha)无误后(hou)打开电源。

十、提(ti)高(gao)到(dao)所(suo)需的(de)(de)电(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)或(huo)电(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。升(sheng)压(ya)(ya)(ya)速(su)度(du)适用于(yu)每秒3~5kV的(de)(de)试(shi)(shi)验电(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)。国电(dian)(dian)(dian)(dian)(dian)西高(gao)提(ti)醒您:在进(jin)行大电(dian)(dian)(dian)(dian)(dian)容试(shi)(shi)验时(shi),还必须监测(ce)电(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)表的(de)(de)充(chong)电(dian)(dian)(dian)(dian)(dian)电(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu),其不超过测(ce)试(shi)(shi)仪的(de)(de)大充(chong)电(dian)(dian)(dian)(dian)(dian)电(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。对(dui)于(yu)小(xiao)容量(liang)样品,如氧(yang)化(hua)锌避(bi)雷(lei)器(qi)、磁避(bi)雷(lei)器(qi)等,先升(sheng)高(gao)到(dao)所(suo)需电(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(电(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu))的(de)(de)95%,然(ran)(ran)后缓慢小(xiao)心地上(shang)升(sheng)到(dao)所(suo)需电(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(电(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu))。然(ran)(ran)后从(cong)数字仪表读出电(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(电(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu))值。如果(guo)氧(yang)化(hua)锌避(bi)雷(lei)器(qi)需要测(ce)量(liang)0。75udc-1mA,电(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)首先上(shang)升(sheng)到(dao)udc1ma值,然(ran)(ran)后按(an)黄色按(an)钮(niu),电(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)下(xia)降到(dao)原(yuan)来的(de)(de)75%,并(bing)保持此状(zhuang)态。此时(shi)可以读取电(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。测(ce)量(liang)后,稳压(ya)(ya)(ya)器(qi)逆(ni)时(shi)针方向回到(dao)零,然(ran)(ran)后按(an)绿色按(an)钮(niu)。当您需要再次提(ti)升(sheng)时(shi),请按(an)下(xia)绿色按(an)钮(niu)。如有必要,使用外部高(gao)压(ya)(ya)(ya)分压(ya)(ya)(ya)器(qi)比较控制箱(xiang)上(shang)的(de)(de)电(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)。

十一、直流高压(ya)发生器(qi)使用完毕(bi),电压(ya)下降,断电。

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