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HDRB-IV繞組(zu)變(bian)形測(ce)試系統用于測(ce)試6kV及以(yi)上電(dian)壓(ya)(ya)(ya)等(deng)級電(dian)力變(bian)壓(ya)(ya)(ya)器及其它特殊(shu)用途(tu)的變(bian)壓(ya)(ya)(ya)器，電(dian)力變(bian)壓(ya)(ya)(ya)器在運(yun)(yun)行或者運(yun)(yun)輸過程(cheng)中(zhong)不可(ke)避免地要(yao)遭受各種故(gu)障(zhang)短路電(dian)流(liu)的沖(chong)擊(ji)(ji)或者物(wu)理撞擊(ji)(ji)，在短路產生的強(qiang)大電(dian)動(dong)力作用下，變(bian)壓(ya)(ya)(ya)器繞組(zu)可(ke)能失去穩定性，導致局部扭曲、鼓包或移位等(deng)*變(bian)形現象，這樣將(jiang)嚴重影響變(bian)壓(ya)(ya)(ya)器的安全運(yun)(yun)行。本儀器采用掃頻(pin)法及低電(dian)壓(ya)(ya)(ya)阻(zu)抗(kang)法對變(bian)壓(ya)(ya)(ya)器的繞組(zu)進行測(ce)試。

HDRB-Ⅱ繞(rao)組變(bian)(bian)形(xing)(xing)測(ce)試(shi)儀(yi)用(yong)于測(ce)試(shi)6kV及(ji)以上電壓(ya)(ya)等(deng)級電力(li)(li)變(bian)(bian)壓(ya)(ya)器(qi)及(ji)其(qi)它(ta)特殊用(yong)途的變(bian)(bian)壓(ya)(ya)器(qi)，電力(li)(li)變(bian)(bian)壓(ya)(ya)器(qi)在(zai)運(yun)(yun)行(xing)或(huo)(huo)者運(yun)(yun)輸過程中不可避免(mian)地要遭受各種故障(zhang)短路電流的沖擊或(huo)(huo)者物理(li)撞擊，在(zai)短路產生的強大電動力(li)(li)作(zuo)用(yong)下，變(bian)(bian)壓(ya)(ya)器(qi)繞(rao)組可能失去穩定(ding)性，導致局部扭曲、鼓包或(huo)(huo)移位等(deng)*變(bian)(bian)形(xing)(xing)現象，這樣(yang)將(jiang)嚴重影響變(bian)(bian)壓(ya)(ya)器(qi)的安全運(yun)(yun)行(xing)。按(an)國(guo)家電力(li)(li)行(xing)業標(biao)準DL/T911－2004采(cai)用(yong)頻率響應分析(xi)法測(ce)量變(bian)(bian)壓(ya)(ya)器(qi)的繞(rao)組變(bian)(bian)形(xing)(xing)。