Before this, many studies have pointed out that the effect of trace water on the electrical properties of oil paper insulation. Because water is a strong polar material, can form a conductive bridge between the electrodes, decrease the dielectric strength so that the oil paper insulation. Because the water molecules are easily dissociated into ion in the electric field, so that the water insulation burning TG cities increased, decreased PV. In the condition of oil paper insulation, heat and electricity has long been
Tengzhou City Xiangying Analysis Technology Co., Ltd. studied XiangyingGC7990plus1 gas chromatography at different temperatures to benzene and heptane in water saturated value as a reference, choose GDx 101 is fixed phase (column length 1 m diameter 3 mm), with N 2 as carrier gas, with thermal conductivity detector, the determination of the insulation of trace water in oil, and the results are compared with that of the coulometric method.
在这以前,许多研究指出了微量水份对油纸绝缘电气性能的影响。由于水是强极性物质,能在电极间形成导电“小桥”,因而使油纸绝缘的抗电强度下降。又由于水分子在电场中容易离解成离子,因而水份使油纸绝缘灼tg邑增高,使PV下降。 在运行条件下的油纸绝缘,长期受到电、热
滕州市翔鹰分析技术有限公司研究了XiangyingGC7990plus1气相色谱仪在不同温度下以苯和正庚烷中的饱和水值作为基准,选用GDX—101为固定相(柱长1米直径3毫米),以N_2作载气,用热导池检测器,测定了绝缘油中的微量水份,并与电量法作了比较。
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Tengzhou City Xiangying Analysis Technology Co., Ltd. studied XiangyingGC7990plus1 gas chromatography at different temperatures to benzene and heptane in water saturated value as a reference, choose GDx 101 is fixed phase (column length 1 m diameter 3 mm), with N 2 as carrier gas, with thermal conductivity detector, the determination of the insulation of trace water in oil, and the results are compared with that of the coulometric method.在这以前,许多研究指出了微量水份对油纸绝缘电气性能的影响。由于水是强极性物质,能在电极间形成导电“小桥”,因而使油纸绝缘的抗电强度下降。又由于水分子在电场中容易离解成离子,因而水份使油纸绝缘灼tg邑增高,使PV下降。 在运行条件下的油纸绝缘,长期受到电、热
