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公开(公告)号：EP0868731A1
公开(公告)日：1998-10-07
申请号：EP96944969.0
申请日：1996-12-23
发明人： McSHANE, Charles, Patrick , CORKRAN, Jerry, L. , HARTHUN, Richard, A. , GAUGER, Gary, A. , RAPP, Kevin, J. , HOWELLS, Edgar
CPC分类号： H01B3/22 , C09K5/10 , H01B3/20 , H01F27/125 , H01F27/14 , H01F27/321
摘要： A transformer is disclosed, including a tank housing a transformer core/coil assembly, a dielectric insulating fluid surrounding said core/coil assembly, said fluid comprising a vegetable oil, an antioxidant dissolved in said oil, and a low temperature additive blended into said oil, said fluid defining a headspace above said fluid. The preferred embodiment includes an oxygen absorbing material contained in said tank and in contact with gases in said tank but isolated from contact with said dielectric fluid, said tank including an opening and a sealed plug in said opening, such that said oxygen absorbing material can be replaced through said opening upon removal of said sealed plug, and further includes a gas permeable polymer container sealed against said opening for supporting said oxygen absorbing material and an indicator in gas contact with said headspace and visible from outside the tank for indicating the presence of oxygen in said headspace.
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公开(公告)号：EP1675807A2
公开(公告)日：2006-07-05
申请号：EP04809836.2
申请日：2004-10-01
IPC分类号： C07C1/00
CPC分类号： C09K5/10 , H01B3/20 , H01B3/22 , H01F27/125 , Y10T29/4902 , Y10T137/0402
摘要： A dielectric comprising hydrocarbon liquid admixed with an ester-based compound, wherein the ester-based compound is present in an effective amount to impart breakdown inhibiting properties to a paper insulation material when the dielectric fluid is in contact with the paper material.
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公开(公告)号：EP0868731B1
公开(公告)日：2003-02-26
申请号：EP96944969.3
申请日：1996-12-23
发明人： McSHANE, Charles, Patrick , CORKRAN, Jerry, L. , HARTHUN, Richard , GAUGER, Gary, A. , RAPP, Kevin, J. , HOWELLS, Edgar
CPC分类号： H01B3/22 , C09K5/10 , H01B3/20 , H01F27/125 , H01F27/14 , H01F27/321
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