公开(公告)号：US06683769B2

公开(公告)日：2004-01-27

申请号：US10247340

申请日：2002-09-20

申请人： Daisuke Maeda ,  Takashi Funawatari ,  Yoshiyasu Watanabe

发明人： Daisuke Maeda ,  Takashi Funawatari ,  Yoshiyasu Watanabe

IPC分类号： H02H300

CPC分类号： H02H3/006 ,  H02H1/0038 ,  H02H1/0092

摘要： Compatibility with a current transformer having several kinds of rated current ratios is achieved by finding out a formula of relationship between errors arising in a transformer input circuit and detectable ranges set as setting values of the input circuits which can be optimally set. In connection with that, by dispensing with a gain control section, the number of components, the mounting area and the cost can be reduced. Arithmetic expressions representing the relationship among errors arising in the transformer input circuit, the instrumentation ranges of the input circuits, and detectable errors have been derived. Further by optimally setting the detectable ranges of the input circuits, which are the parameters of the arithmetic expressions, the configuration compatible with a current transformer having several kinds of rated current ratios is achieved.

摘要翻译： 与具有几种额定电流比的电流互感器的兼容性通过找出变压器输入电路中出现的误差与可设置为可以被最佳设定的输入电路的设定值之间的关系的公式来实现。 与此相关，通过分配增益控制部分，可以减少部件的数量，安装面积和成本。 表示变压器输入电路中出现的误差，输入电路的仪表范围和可检测误差之间关系的算术表达式。 此外，通过最佳地设定作为算术表达式的参数的输入电路的可检测范围，实现了与具有几种额定电流比的电流互感器兼容的配置。

公开(公告)号：US5892645A

公开(公告)日：1999-04-06

申请号：US902528

申请日：1997-07-29

申请人： Yoshiyasu Watanabe ,  Toru Tanimizu ,  Kazuo Kano ,  Yasunobu Kanou ,  Toshio Horikoshi ,  Koji Kondou ,  Ryutaro Yamamoto ,  Nobuhiro Kuroda

发明人： Yoshiyasu Watanabe ,  Toru Tanimizu ,  Kazuo Kano ,  Yasunobu Kanou ,  Toshio Horikoshi ,  Koji Kondou ,  Ryutaro Yamamoto ,  Nobuhiro Kuroda

IPC分类号： G01R25/00 ,  H02H3/00 ,  H02H3/26 ,  H02H7/28 ,  H02J3/38

CPC分类号： H02H7/28 ,  H02H3/003 ,  H02H3/265

摘要： A protection apparatus for a spot network substation has a plurality of receiving lines connected between a network bus and a plurality of power sources. Each receiving line is connected to a primary switching device, a network transformer and a protector CB. A detector for detecting a phase of each receiving line voltage and a judging unit for judging the detected phase are provided on the primary side of each network transformer. A previously stored basic phase is compared with the detected phase of the receiving line voltage. If there is a lag in the detected phase of the receiving line voltage, it is judged to be a power-stop of the corresponding power source and the protector CB is tripped.

摘要翻译： 点网变电站的保护装置具有连接在网络总线和多个电源之间的多个接收线。 每个接收线路连接到主交换设备，网络变压器和保护器CB。 在每个网络变压器的初级侧设置有用于检测每个接收线路电压的相位的检测器和用于判断检测到的相位的判断单元。 将先前存储的基本相位与接收线路电压的检测相位进行比较。 如果在接收线路电压的检测相位中存在滞后，则判断为相应电源的停电并且保护器CB跳闸。

公开(公告)号：US06678136B2

公开(公告)日：2004-01-13

申请号：US09942691

申请日：2001-08-31

申请人： Daisuke Maeda ,  Takashi Funawatari ,  Yoshiyasu Watanabe

发明人： Daisuke Maeda ,  Takashi Funawatari ,  Yoshiyasu Watanabe

IPC分类号： H02H300

CPC分类号： H02H3/006 ,  H02H1/0038 ,  H02H1/0092

摘要： Compatibility with a current transformer having several kinds of rated current ratios is achieved by finding out a formula of relationship between errors arising in a transformer input circuit and detectable ranges set as setting values of the input circuits which can be optimally set. In connection with that, by dispensing with a gain control section, the number of components, the mounting area and the cost can be reduced. Arithmetic expressions representing the relationship among errors arising in the transformer input circuit, the instrumentation ranges of the input circuits, and detectable errors have been derived. Further by optimally setting the detectable ranges of the input circuits, which are the parameters of the arithmetic expressions, the configuration compatible with a current transformer having several kinds of rated current ratios is achieved.

公开(公告)号：US06268579B1

公开(公告)日：2001-07-31

申请号：US09509638

申请日：2000-03-31

申请人： Satoru Kajiwara ,  Toru Tanimizu ,  Yoshiyasu Watanabe ,  Yozo Shibata ,  Ayumu Morita

发明人： Satoru Kajiwara ,  Toru Tanimizu ,  Yoshiyasu Watanabe ,  Yozo Shibata ,  Ayumu Morita

IPC分类号： H01H3302

CPC分类号： H01H33/6664 ,  H01H31/003 ,  H01H33/6606 ,  H01H2033/6668 ,  H02B13/0354 ,  H02B13/045

摘要： A vacuum switch gear provided with a vacuum container grounded within a grounded vacuum container or a gas-insulated ground container, and a pair of buses connected to an external conductor of the switch gear. A portion for connecting the buses and the external conductor is interface insulation in which an elastic body and solid insulation are utilized in combination. The interface insulation performs adhering and tightening work by rotating an adjuster from the outside.

摘要翻译： 一真空开关装置，设置有接地的真空容器或气体绝缘地面容器内的真空容器，以及连接到开关装置的外部导体的一对母线。 用于连接总线和外部导体的部分是其中组合使用弹性体和固体绝缘体的界面绝缘体。 接口绝缘通过从外部旋转调节器来进行粘附和紧固工作。