公开(公告)号：US08115473B2

公开(公告)日：2012-02-14

申请号：US12596065

申请日：2008-04-07

申请人： Junichi Sato ,  Masao Takahashi ,  Miwa Takeuchi ,  Teruhiko Maeda ,  Mitsuhiro Fujikawa ,  Tokihiro Umemura ,  Tsuyoshi Kuwabara

发明人： Junichi Sato ,  Masao Takahashi ,  Miwa Takeuchi ,  Teruhiko Maeda ,  Mitsuhiro Fujikawa ,  Tokihiro Umemura ,  Tsuyoshi Kuwabara

IPC分类号： G01R31/00 ,  G01R15/18 ,  G01R1/20

CPC分类号： G01R15/241 ,  G01R15/06 ,  G01R15/16 ,  G01R15/242 ,  G01R15/247

摘要： An optical voltage transformer is connected with an external electric device and includes a primary electrode to which a measured voltage is applied by the external electric device, a first secondary electrode provided oppositely to the primary electrode, an insulation layer provided between the primary and first secondary electrodes and constituting an insulation cylinder integrally formed with the primary and first secondary electrodes, a ground layer provided on an outer circumference of the insulation cylinder and around the first secondary electrode for securing a capacitance by interposing the insulation layer between the ground layer and the first secondary electrode, and an electro-optic element for measuring a voltage between the first secondary electrode and the ground layer. According to the optical voltage transformer, measurement of the measured voltage can be done with high accuracy without affected by its surrounding environment and its downsizing can be achieved by reducing the number of its components.

摘要翻译： 光电压变压器与外部电气装置连接，并且包括由外部电气装置施加测量电压的主电极，与主电极相对设置的第一次级电极，设置在初级和第一级之间的绝缘层 电极，并且构成与初级和第一次级电极一体形成的绝缘筒，设置在绝缘筒的外周上并围绕第一辅助电极的接地层，用于通过将绝缘层插入接地层和第一辅助电极之间来确保电容 二次电极和用于测量第一次级电极和接地层之间的电压的电光元件。 根据光电压变压器，可以高精度地测量测量电压，而不受其周围环境的影响，通过减少其组件数量可以实现其小型化。

公开(公告)号：US20100109642A1

公开(公告)日：2010-05-06

申请号：US12596065

申请日：2008-04-07

申请人： Junichi Sato ,  Masao Takahashi ,  Miwa Takeuchi ,  Teruhiko Maeda ,  Mitsuhiro Fujikawa ,  Tokihiro Umemura ,  Tsuyoshi Kuwabara

发明人： Junichi Sato ,  Masao Takahashi ,  Miwa Takeuchi ,  Teruhiko Maeda ,  Mitsuhiro Fujikawa ,  Tokihiro Umemura ,  Tsuyoshi Kuwabara

IPC分类号： G01R13/38

CPC分类号： G01R15/241 ,  G01R15/06 ,  G01R15/16 ,  G01R15/242 ,  G01R15/247

摘要： An optical voltage transformer is connected with an external electric device and includes a primary electrode to which a measured voltage is applied by the external electric device, a first secondary electrode provided oppositely to the primary electrode, an insulation layer provided between the primary and first secondary electrodes and constituting an insulation cylinder integrally formed with the primary and first secondary electrodes, a ground layer provided on an outer circumference of the insulation cylinder and around the first secondary electrode for securing a capacitance by interposing the insulation layer between the ground layer and the first secondary electrode, and an electro-optic element for measuring a voltage between the first secondary electrode and the ground layer. According to the optical voltage transformer, measurement of the measured voltage can be done with high accuracy without affected by its surrounding environment and its downsizing can be achieved by reducing the number of its components.

摘要翻译： 光电压变压器与外部电气装置连接，并且包括由外部电气装置施加测量电压的主电极，与主电极相对设置的第一次级电极，设置在初级和第一级之间的绝缘层 电极，并且构成与初级和第一次级电极一体形成的绝缘筒，设置在绝缘筒的外周上并围绕第一辅助电极的接地层，用于通过将绝缘层插入接地层和第一辅助电极之间来确保电容 二次电极和用于测量第一次级电极和接地层之间的电压的电光元件。 根据光电压变压器，可以高精度地测量测量电压，而不受其周围环境的影响，通过减少其组件数量可以实现其小型化。