標題：四級承裝類設備/髙壓介質損耗測試裝置

產品概述

產品概述：

四級承裝類設備/髙壓介質損耗測試裝置，可以有效(xiao)地發現(xian)(xian)(xian)電(dian)(dian)(dian)器設備絕(jue)(jue)緣的(de)整體受潮劣(lie)化(hua)變(bian)質，以及(ji)局部缺陷等(deng)。在電(dian)(dian)(dian)工(gong)制(zhi)造、電(dian)(dian)(dian)氣設備安裝、交接和預防性試(shi)驗中(zhong)都(dou)廣泛(fan)應用(yong)。變(bian)壓(ya)(ya)器、互感(gan)(gan)器、電(dian)(dian)(dian)抗(kang)器、電(dian)(dian)(dian)容器以及(ji)套管、避雷(lei)器等(deng)介(jie)損的(de)測(ce)(ce)(ce)量是衡量其絕(jue)(jue)緣性能的(de)基本方法。突破了傳統的(de)電(dian)(dian)(dian)橋測(ce)(ce)(ce)量方式，采(cai)(cai)用(yong)變(bian)頻(pin)電(dian)(dian)(dian)源技術(shu)，利用(yong)單(dan)片機、和現(xian)(xian)(xian)代化(hua)電(dian)(dian)(dian)子技術(shu)進(jin)行自(zi)(zi)(zi)動(dong)頻(pin)率變(bian)換(huan)、模(mo)/數轉換(huan)和數據(ju)運算；達到抗(kang)干擾能力(li)強、測(ce)(ce)(ce)試(shi)速度快、精(jing)度高、全(quan)自(zi)(zi)(zi)動(dong)數字化(hua)、操作簡便；電(dian)(dian)(dian)源采(cai)(cai)用(yong)大功率開關電(dian)(dian)(dian)源，輸出45Hz和55Hz純(chun)正弦波，自(zi)(zi)(zi)動(dong)加壓(ya)(ya)，可提供高10千伏的(de)電(dian)(dian)(dian)壓(ya)(ya)；自(zi)(zi)(zi)動(dong)濾除50Hz干擾，適(shi)用(yong)于變(bian)電(dian)(dian)(dian)站(zhan)等(deng)電(dian)(dian)(dian)磁干擾大的(de)現(xian)(xian)(xian)場測(ce)(ce)(ce)試(shi)。廣泛(fan)適(shi)用(yong)于電(dian)(dian)(dian)力(li)行業中(zhong)變(bian)壓(ya)(ya)器、互感(gan)(gan)器、套管、電(dian)(dian)(dian)容器、避雷(lei)器等(deng)設備的(de)介(jie)損測(ce)(ce)(ce)量。

主要特點：

1、四級承裝類設備/髙壓介質損耗測試裝置具有正/反(fan)接線工作模式。    

2、只需配備(bei)標準(zhun)油杯(bei)和測(ce)試線，即可(ke)實(shi)現油介(jie)損測(ce)量。

3、采用變頻技術來消除現場工頻干(gan)擾，即(ji)使在強電磁(ci)干(gan)擾的環境下也能測(ce)得可靠(kao)的數據(ju)。

4、過(guo)流(liu)保護功能，在試品短路或擊(ji)穿時儀器不受損壞。

5、內附標準電容和高壓電源(yuan)，便于現場測(ce)試，減少現場接線。

6、大(da)屏(ping)幕液晶顯(xian)示器，漢(han)字(zi)菜(cai)單提(ti)示測試過程，既直(zhi)觀(guan)又便于操作(zuo)。

工作原理：

在(zai)交流(liu)電(dian)(dian)(dian)(dian)(dian)壓作用下，電(dian)(dian)(dian)(dian)(dian)介質(zhi)要消耗(hao)(hao)部分電(dian)(dian)(dian)(dian)(dian)能，這部分電(dian)(dian)(dian)(dian)(dian)能將轉(zhuan)(zhuan)變為熱(re)能產生損耗(hao)(hao)。這種能量(liang)損耗(hao)(hao)叫做電(dian)(dian)(dian)(dian)(dian)介質(zhi)的損耗(hao)(hao)。當(dang)電(dian)(dian)(dian)(dian)(dian)介質(zhi)上施加交流(liu)電(dian)(dian)(dian)(dian)(dian)壓時，電(dian)(dian)(dian)(dian)(dian)介質(zhi)中的電(dian)(dian)(dian)(dian)(dian)壓和電(dian)(dian)(dian)(dian)(dian)流(liu)間存在(zai)相角差Ψ，Ψ的余角δ稱為介質(zhi)損耗(hao)(hao)角，δ的正切tgδ稱為介質(zhi)損耗(hao)(hao)角正切。tgδ值是用來(lai)衡量(liang)電(dian)(dian)(dian)(dian)(dian)介質(zhi)損耗(hao)(hao)的參(can)數。儀器(qi)測量(liang)線路(lu)包(bao)括(kuo)一(yi)標準(zhun)回(hui)(hui)路(lu)(Cn)和一(yi)被(bei)(bei)試(shi)(shi)(shi)回(hui)(hui)路(lu)(Cx)。標準(zhun)回(hui)(hui)路(lu)由(you)內置(zhi)高(gao)穩(wen)定度標準(zhun)電(dian)(dian)(dian)(dian)(dian)容(rong)器(qi)與測量(liang)線路(lu)組成(cheng)，被(bei)(bei)試(shi)(shi)(shi)回(hui)(hui)路(lu)由(you)被(bei)(bei)試(shi)(shi)(shi)品(pin)和測量(liang)線路(lu)組成(cheng)。測量(liang)線路(lu)由(you)取樣(yang)電(dian)(dian)(dian)(dian)(dian)阻與前置(zhi)放大器(qi)和A/D轉(zhuan)(zhuan)換器(qi)組成(cheng)。通(tong)過測量(liang)電(dian)(dian)(dian)(dian)(dian)路(lu)分別測得(de)標準(zhun)回(hui)(hui)路(lu)電(dian)(dian)(dian)(dian)(dian)流(liu)與被(bei)(bei)試(shi)(shi)(shi)回(hui)(hui)路(lu)電(dian)(dian)(dian)(dian)(dian)流(liu)幅(fu)值及其相位等(deng)，再(zai)由(you)單(dan)片機運(yun)用數字化(hua)實時采集方法(fa)，通(tong)過矢量(liang)運(yun)算便(bian)可得(de)出試(shi)(shi)(shi)品(pin)的電(dian)(dian)(dian)(dian)(dian)容(rong)值和介質(zhi)損耗(hao)(hao)正切值。

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