-
公开(公告)号：US06845301B2
公开(公告)日：2005-01-18
申请号：US10059089
申请日：2002-01-30
申请人： Koichi Hamamatsu , Tokuo Ito , Hachidai Ito , Yoshito Sameda , Toshiyuki Saida , Noriyoshi Suga , Hiromi Nagasaki , Yuuji Minami , Takashi Nakajima , Shiro Maruyama , Minoru Saito , Tatsuji Tanaka , Masao Takahashi , Setsuo Tamura , Masayuki Kosakada
发明人： Koichi Hamamatsu , Tokuo Ito , Hachidai Ito , Yoshito Sameda , Toshiyuki Saida , Noriyoshi Suga , Hiromi Nagasaki , Yuuji Minami , Takashi Nakajima , Shiro Maruyama , Minoru Saito , Tatsuji Tanaka , Masao Takahashi , Setsuo Tamura , Masayuki Kosakada
摘要： The present invention relates to a system for protecting and controlling main-circuit components of an electricity transmission substation. The system includes devices for digital data output, protection-and-controlling, component controlling-and-monitoring, and communication. The digital data output devices input analogue AC electric values and output digital data. The protection-and-controlling devices input the data from the digital data output devices, and further control, monitor, and protect the substation main-circuit components. The component controlling-and-monitoring devices receive commands from the protection-and-controlling devices or from the substation controlling-and-monitoring equipment, and further control and monitor the substation main-circuit components. The devices for digital data output, the protection-and-controlling, and component controlling-and-monitoring are disposed near or within their corresponding substation main-circuit components.
摘要翻译： 本发明涉及一种用于保护和控制输电变电站主电路部件的系统。 该系统包括用于数字数据输出，保护和控制，组件控制和监控以及通信的设备。 数字数据输出设备输入模拟交流电值并输出数字数据。 保护和控制设备从数字数据输出设备输入数据，并进一步控制，监控和保护变电站主电路组件。 组件控制和监视设备从保护和控制设备或变电站控制和监控设备接收命令，并进一步控制和监控变电站主电路组件。 用于数字数据输出的装置，保护和控制以及部件控制和监视装置设置在它们相应的变电站主电路部件附近或内部。
-
公开(公告)号：US06954704B2
公开(公告)日：2005-10-11
申请号：US10608377
申请日：2003-06-30
CPC分类号： H02H1/0061
摘要： A digital protection and control device is so configured that at least parts of a digital data merging unit coupled to sensor units by a transmission medium, a protection and control unit, a communication unit for component control devices coupled to component control devices by a transmission medium, and a process bus communication unit are coupled by a parallel transmission medium, and at least a part of data exchange is based on a multimaster mode. Transmission based on the multimaster mode enables each unit to transmit/receive data independently and enables the reduction in unbalanced communication load. As a result, such a risk can be reduced that time responsiveness of operation is lowered as the entire digital protection and control device due to unbalanced concentration of data bus processing in a particular unit.
摘要翻译： 数字保护和控制装置被配置为使得至少部分数字数据合并单元由传输介质耦合到传感器单元，保护和控制单元，用于通过传输介质耦合到部件控制装置的部件控制装置的通信单元 并且通过并行传输介质耦合一个进程总线通信单元，并且数据交换的至少一部分基于多主机模式。 基于多主机模式的传输使得每个单元能够独立地发送/接收数据，并能够减少不平衡的通信负载。 结果，由于整个数字保护和控制设备由于特定单元中的数据总线处理的不均衡的不均衡而降低了操作的时间响应性。
-
公开(公告)号：US08861163B2
公开(公告)日：2014-10-14
申请号：US13476419
申请日：2012-05-21
申请人： Hiroyuki Shirakawa , Yusuke Yanagihashi , Hiroyuki Maehara , Toshio Tanaka , Noriyoshi Suga , Itsuo Shuto
发明人： Hiroyuki Shirakawa , Yusuke Yanagihashi , Hiroyuki Maehara , Toshio Tanaka , Noriyoshi Suga , Itsuo Shuto
IPC分类号： H02H3/20 , H02H3/02 , H03K17/795
CPC分类号： H02H3/02 , H02H1/0007 , H02H3/20 , H03K17/7955
摘要： According to one embodiment, there is provided a protection relay. The protection relay includes an input circuit that detects a state of an external device according to whether or not an external input voltage is larger than a preset threshold voltage. The input circuit includes switching unit that is made conductive by a divided voltage obtained by voltage-dividing resistors that divide the external input voltage when the external input voltage is higher than or equal to the threshold voltage, and a photocoupler that is operated by a constant current of a constant current output circuit supplying a constant current and outputs an operation signal to the operation unit when the switching unit is made conductive.
摘要翻译： 根据一个实施例，提供了一种保护继电器。 保护继电器包括根据外部输入电压是否大于预设阈值电压来检测外部设备的状态的输入电路。 输入电路包括通过在外部输入电压高于或等于阈值电压时将外部输入电压分压的分压电阻获得的分压使导通的开关单元和由常数操作的光电耦合器 提供恒定电流的恒流输出电路的电流，并且当切换单元导通时，将操作信号输出到操作单元。
-
4.发明授权
公开(公告)号：US4468796A
公开(公告)日：1984-08-28
申请号：US258926
申请日：1981-04-30
申请人： Noriyoshi Suga
发明人： Noriyoshi Suga
CPC分类号： H02H3/46
摘要： A digital frequency relay for use in protecting an electrical power transmission line in the event of frequency deviations indicative of a fault condition, including an input device for receiving AC electric signals, and an oscillator for generating a reference frequency, which are connected to respective first and second counters which respectively count the number of output pulses from the oscillator during the AC electric signal positive half-cycle, and during the AC electric signal negative half-cycle. The resultant output from the first and second counters is added and compared with a set value to produce a trip signal for the frequency relay.
摘要翻译： 一种数字频率继电器，用于在指示故障状况的频率偏差的情况下用于保护电力传输线路，包括用于接收交流电信号的输入装置和用于产生参考频率的振荡器，其连接到相应的第一 以及在AC电信号正半周期期间以及在交流电信号负半周期期间分别计数来自振荡器的输出脉冲数的第二计数器。 将来自第一和第二计数器的结果输出相加并与设定值进行比较，以产生用于频率继电器的跳闸信号。
-
公开(公告)号：US09275793B2
公开(公告)日：2016-03-01
申请号：US13476588
申请日：2012-05-21
申请人： Yusuke Yanagihashi , Hiroyuki Shirakawa , Toshio Tanaka , Hiroyuki Maehara , Noriyoshi Suga , Itsuo Shuto
发明人： Yusuke Yanagihashi , Hiroyuki Shirakawa , Toshio Tanaka , Hiroyuki Maehara , Noriyoshi Suga , Itsuo Shuto
CPC分类号： H01F38/30 , H01F27/2852 , H01F2027/065
摘要： According to one embodiment, a current input converter includes a first metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one end of a primary-side coil of the transformer, and connects the terminal table and the one end of the primary-side coil of the transformer to each other, and a second metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one other end of the primary-side coil of the transformer, and connects the terminal table and the other end of the primary-side coil of the transformer to each other.
摘要翻译： 根据一个实施例，电流输入转换器包括具有固体形状的第一金属板，其一端连接到端子台，另一端附接到变压器的初级侧线圈的一端，并将端子 所述变压器的所述一次侧线圈的一端彼此相对，并且具有固体形状的第二金属板，所述第二金属板的一端附接到所述端子台，并且另一端附接到所述初级侧线圈的另一端， 并且将端子台与变压器的一次侧线圈的另一端相互连接。
-
公开(公告)号：US20120229946A1
公开(公告)日：2012-09-13
申请号：US13476419
申请日：2012-05-21
申请人： Hiroyuki SHIRAKAWA , Yusuke Yanagihashi , Hiroyuki Maehara , Toshio Tanaka , Noriyoshi Suga , Itsuo Shuto
发明人： Hiroyuki SHIRAKAWA , Yusuke Yanagihashi , Hiroyuki Maehara , Toshio Tanaka , Noriyoshi Suga , Itsuo Shuto
IPC分类号： H02H3/20
CPC分类号： H02H3/02 , H02H1/0007 , H02H3/20 , H03K17/7955
摘要： According to one embodiment, there is provided a protection relay. The protection relay includes an input circuit that detects a state of an external device according to whether or not an external input voltage is larger than a preset threshold voltage. The input circuit includes switching unit that is made conductive by a divided voltage obtained by voltage-dividing resistors that divide the external input voltage when the external input voltage is higher than or equal to the threshold voltage, and a photocoupler that is operated by a constant current of a constant current output circuit supplying a constant current and outputs an operation signal to the operation unit when the switching unit is made conductive.
摘要翻译： 根据一个实施例，提供了一种保护继电器。 保护继电器包括根据外部输入电压是否大于预设阈值电压来检测外部设备的状态的输入电路。 输入电路包括通过在外部输入电压高于或等于阈值电压时将外部输入电压分压的分压电阻获得的分压使导通的开关单元和由常数操作的光电耦合器 提供恒定电流的恒流输出电路的电流，并且当切换单元导通时，将操作信号输出到操作单元。
-
公开(公告)号：US4825326A
公开(公告)日：1989-04-25
申请号：US60351
申请日：1987-06-10
申请人： Fumio Andow , Noriyoshi Suga
发明人： Fumio Andow , Noriyoshi Suga
摘要： In differential function calculation processing, a value of differential function f(d) is calculated using differences between a plurality of predetermined number p of differential current data Dd sampled at different sampling times. The differential current data is data obtained from differential current Id or a sum of data Dj (j=1 to n where n is the number of the respective terminal currents) obtained from respective terminal currents Ipj. In restraint data calculation processing, restraint data Dr is calculated using respective terminal current data Dj sampled at the same sampling time. In restraint function calculation processing, a value of restraint function f(r) is calculated using differences between a plurality of predetermined number p of restraint data Dr sampled at different sampling times. Then, in comparison processing, the value of differential function f(d) is compared with the value of restraint function f(r). If the value of differential function f(d) is smaller than a value, modified by a predetermined relationship, of restraint function f(r), an inhibit output is generated in the comparison processing. Differential relay processing inhibits a trip operation of a circuit breaker by the inhibit output from the comparison processing. The differential relay processing is so controlled as to execute the trip operation when the inhibit output is not present.
-
公开(公告)号：US4507700A
公开(公告)日：1985-03-26
申请号：US428408
申请日：1982-09-29
申请人： Fumio Andow , Yuji Okita , Noriyoshi Suga
发明人： Fumio Andow , Yuji Okita , Noriyoshi Suga
CPC分类号： H02H3/40
摘要： A protective relaying system is disclosed which detects a fault in an electric power system having a circuit breaker by using a current and a voltage of the electric power system. The protective relaying system includes an input conversion/unit adapted to receive a first and a second input signals corresponding to said current and voltage, for converting the magnitude and/or the phase of the first and second input signals to produce least two electrical quantities a first electrical quantity and a third electrical quantity, and for outputting the second input signal without conversion as a second electrical quantity.The protective relaying system also includes a comparing unit connected to receive first, second and third electrical quantities from the input conversion unit for comparing the first and second electrical quantities to produce a first logical state and comparing the third and fourth electrical quantities to produce a second logical state signal cyclically. The protective relaying system further includes a digital data processing unit for judging whether a specified logical condition between the first and second logical state signals holds for a predetermined number of times corresponding to a predetermined electrical angle, and for producing a protection relay output signal based on the judging result. The protection relay output signal is adapted for using to trip the circuit breaker.
摘要翻译： 公开了一种通过使用电力系统的电流和电压来检测具有断路器的电力系统的故障的保护继电器系统。 保护性中继系统包括适于接收对应于所述电流和电压的第一和第二输入信号的输入转换/单元，用于转换第一和第二输入信号的幅度和/或相位以产生最少两个电量a 第一电量和第三电量，并且用于输出不转换的第二输入信号作为第二电量。 保护性中继系统还包括一个比较单元，其被连接以从输入转换单元接收第一，第二和第三电量，用于比较第一和第二电量以产生第一逻辑状态，并比较第三和第四电量以产生第二 逻辑状态信号循环。 保护性中继系统还包括数字数据处理单元，用于判断第一和第二逻辑状态信号之间的指定逻辑条件是否保持预定次数对应于预定电角度，并且用于产生基于 判断结果。 保护继电器输出信号适用于使断路器跳闸。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.046 秒)