標題：上海生產2/220-耐電壓測試儀

產品概述

上海勝緒電氣有限公司是致力于上海生產2/220-耐電壓測試儀、高壓試驗設備、儀器儀表研發、生產、銷售的企業，,公司擁有堅實的技術力量，已經通過ISO9001質量體系認證,在產品結構、軟、硬件和電氣控制等多項核心技術中積累了豐富的項目經驗，以新穎的設計、優質的產品取悅于用戶。

技(ji)術規(gui)格：

1. 電壓測試范圍:AC0-1.5KV/5KV ±5% ±5個字

2. 漏電流測(ce)試范圍: ACO.1mA-2mA/20mA 二檔

±5% ±2個字

3.漏電流報警值(zhi)預制(zhi)范圍ACO.1mA-2mA/20mA 二檔

4.時間測(ce)試(shi)范(fan)圍:1-90s，±5% 連續設(she)定和手動5.變壓器容量:500VA

6.輸出波形:50Hz,正弦波7.工作條件(jian):環(huan)境溫度0-40℃

8.相對濕度:不大于(yu)75%

9.大氣壓力(li):101.25Kpa

10.體積:320×250×170

11.上海生產2/220-耐電壓測試儀重量:13Kg

12.電源:220V ±10% 50Hz±2Hz

13附件:高壓(ya)測(ce)試探頭(tou)一(yi)對、儀器使用說明書一(yi)份、電纜線(xian)一(yi)根.

儀器檢測原理：

相對于(yu)變壓(ya)(ya)器的(de)(de)主絕(jue)(jue)緣(yuan)即繞(rao)(rao)組與(yu)繞(rao)(rao)組之(zhi)間(jian)以(yi)及(ji)繞(rao)(rao)組與(yu)鐵芯(xin)之(zhi)間(jian)的(de)(de)絕(jue)(jue)緣(yuan)而言，變壓(ya)(ya)器還有另外(wai)一項重(zhong)要的(de)(de)絕(jue)(jue)緣(yuan)性能(neng)指標(biao)――縱(zong)絕(jue)(jue)緣(yuan)。縱(zong)絕(jue)(jue)緣(yuan)是(shi)指變壓(ya)(ya)器繞(rao)(rao)組具有不(bu)(bu)同(tong)電位的(de)(de)不(bu)(bu)同(tong)點(dian)和不(bu)(bu)同(tong)部位之(zhi)間(jian)的(de)(de)絕(jue)(jue)緣(yuan)，主要包括繞(rao)(rao)組匝間(jian)、層(ceng)間(jian)和段間(jian)的(de)(de)絕(jue)(jue)緣(yuan)性能(neng)，而國家標(biao)準(zhun)和電工委員會(hui)（IEC）標(biao)準(zhun)中規定(ding)的(de)(de)“感(gan)應耐(nai)壓(ya)(ya)試(shi)驗”則是(shi)專門(men)用于(yu)檢(jian)驗變壓(ya)(ya)器縱(zong)絕(jue)(jue)緣(yuan)性能(neng)的(de)(de)測(ce)試(shi)方(fang)法之(zhi)一。

變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)縱(zong)(zong)絕(jue)(jue)緣(yuan)(yuan)主要依賴于繞組內的(de)(de)(de)(de)(de)絕(jue)(jue)緣(yuan)(yuan)介(jie)(jie)質(zhi)(zhi)——漆包線本身的(de)(de)(de)(de)(de)絕(jue)(jue)緣(yuan)(yuan)漆、變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)油(you)、絕(jue)(jue)緣(yuan)(yuan)紙、浸漬漆和(he)(he)絕(jue)(jue)緣(yuan)(yuan)膠等等（不(bu)同(tong)種(zhong)類的(de)(de)(de)(de)(de)變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)可(ke)能(neng)包含(han)其中一種(zhong)或(huo)多種(zhong)絕(jue)(jue)緣(yuan)(yuan)介(jie)(jie)質(zhi)(zhi)）；縱(zong)(zong)絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)(dian)介(jie)(jie)質(zhi)(zhi)很難保證100%的(de)(de)(de)(de)(de)純凈(jing)度，難免混含(han)固(gu)體雜質(zhi)(zhi)、氣泡或(huo)水份等，生產過(guo)程(cheng)中也(ye)(ye)會(hui)受到(dao)不(bu)同(tong)程(cheng)度的(de)(de)(de)(de)(de)損(sun)傷；變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)工作時的(de)(de)(de)(de)(de)zui高場(chang)(chang)強集中在這(zhe)些(xie)缺陷處，長期(qi)負載運作的(de)(de)(de)(de)(de)溫(wen)升又降低絕(jue)(jue)緣(yuan)(yuan)介(jie)(jie)質(zhi)(zhi)的(de)(de)(de)(de)(de)擊(ji)穿電(dian)(dian)(dian)(dian)壓(ya)(ya)，造(zao)成局部放電(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)介(jie)(jie)質(zhi)(zhi)通過(guo)外施交變(bian)(bian)電(dian)(dian)(dian)(dian)場(chang)(chang)吸收的(de)(de)(de)(de)(de)功(gong)率(lv)即(ji)介(jie)(jie)質(zhi)(zhi)損(sun)耗會(hui)顯著增(zeng)(zeng)加，導(dao)(dao)致電(dian)(dian)(dian)(dian)介(jie)(jie)質(zhi)(zhi)發(fa)熱嚴重，介(jie)(jie)質(zhi)(zhi)電(dian)(dian)(dian)(dian)導(dao)(dao)增(zeng)(zeng)大(da)，該部位的(de)(de)(de)(de)(de)大(da)電(dian)(dian)(dian)(dian)流(liu)也(ye)(ye)會(hui)產生熱量，就(jiu)會(hui)使電(dian)(dian)(dian)(dian)介(jie)(jie)質(zhi)(zhi)的(de)(de)(de)(de)(de)溫(wen)度繼(ji)續升高，而(er)溫(wen)度的(de)(de)(de)(de)(de)升高反(fan)過(guo)來又使電(dian)(dian)(dian)(dian)介(jie)(jie)質(zhi)(zhi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)導(dao)(dao)增(zeng)(zeng)加。如此長期(qi)惡性循(xun)環下去，zui后導(dao)(dao)致電(dian)(dian)(dian)(dian)介(jie)(jie)質(zhi)(zhi)的(de)(de)(de)(de)(de)熱擊(ji)穿和(he)(he)整個變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)毀壞。這(zhe)一故障(zhang)表現在變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)特性上就(jiu)是空載電(dian)(dian)(dian)(dian)流(liu)和(he)(he)空載功(gong)耗顯著增(zeng)(zeng)加，并且繞組有(you)灼熱、飛弧、振動(dong)和(he)(he)嘯叫等不(bu)良現象(xiang)。可(ke)見利(li)用感應耐壓(ya)(ya)試驗檢(jian)測出變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)是否含(han)有(you)縱(zong)(zong)絕(jue)(jue)緣(yuan)(yuan)缺陷是極其必要的(de)(de)(de)(de)(de)。

注意事項：

1.操作(zuo)者必須戴絕緣橡膠手套,腳(jiao)下(xia)墊(dian)(dian)橡膠墊(dian)(dian),以防高(gao)壓電擊(ji)造(zao)成生命危險(xian).

2.在連接被測體或拆卸時(shi),必(bi)須保證高(gao)壓(ya)輸出"0" 及(ji)在"復位"狀態(tai).

3.測試時儀器接地(di)端與被(bei)測體(ti)要(yao)可靠(kao)相接,嚴(yan)禁開路.

4.切勿將輸(shu)出(chu)地線與(yu)交流電(dian)(dian)源線短路,以免外(wai)殼帶(dai)電(dian)(dian),造成(cheng)危(wei)險(xian).

5.盡可(ke)能避(bi)免高壓輸出與(yu)地短路(lu),以免發生(sheng)意外(wai).

6.測試燈(deng)、超漏燈(deng),一旦損壞(huai),必(bi)須(xu)立即更換,以免造成誤判(pan).

7.排除故(gu)障時(shi),必(bi)須切斷電源,由(you)專業技術人員進(jin)行維修.

8.為了避(bi)免意(yi)外電擊,操作本儀器時請戴上(shang)橡膠絕緣手套(tao).

9.儀(yi)器空載調整高壓(ya)時,漏電流指示(shi)表頭有起始(shi)電流,均屬(shu)正常,不(bu)影(ying)響測試精度.

10.儀器避免陽光正面直射(she),不(bu)要(yao)在(zai)高溫(wen)、潮濕、多塵的環(huan)境中使用或存放.

11.儀器使用一年后(hou),必須按(an)照(zhao)國家技術監督部門要求(qiu)、送計(ji)量部門或回廠檢(jian)定合格后(hou),方可繼續使用。