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1. 发明专利

JP2011115004A Protective relay 有权
标题翻译：保护继电器
公开(公告)号：JP2011115004A
公开(公告)日：2011-06-09
申请号：JP2009271457
申请日：2009-11-30
申请人： Toshiba Corp , 株式会社東芝
发明人： SHIRAKAWA HIRONORI , YANAGIBASHI YUSUKE , MAEHARA HIROYUKI , TANAKA TOSHIO , SUGA NORIYOSHI , SHUDO ITSUO
IPC分类号： H02H3/02 , H03K17/78
CPC分类号： H02H3/02 , H02H1/0007 , H02H3/20 , H03K17/7955
摘要： PROBLEM TO BE SOLVED: To provide a protective relay including an input circuit that can adjust a threshold voltage over a wide range of input voltage by using only one contact input circuit without forming a complicated circuit configuration, and that can reduce generation of heat. SOLUTION: The protective relay includes the input circuit 12 that detects a state of an external apparatus depending on whether an external input voltage is larger than a preliminarily set threshold voltage, and a calculating unit 13 that fetches a detection signal detected by the input circuit 12 and performs a protective relay calculation. The input circuit 12 includes a switching means 14 that goes conductive on a divided voltage divided by a voltage division resistance for dividing the external input voltage when the external input voltage is equal to or higher than the threshold voltage, and a photocoupler 16 that operates on a constant current of a constant current output circuit that supplies a constant current when the switching means 14 goes conductive and outputs the operation signal to the calculating unit 13. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种保护继电器，其包括输入电路，其可以通过仅使用一个接触输入电路而在宽的输入电压范围内调节阈值电压而不形成复杂的电路配置，并且可以减少热。解决方案：保护继电器包括输入电路12，其根据外部输入电压是否大于预先设定的阈值电压来检测外部设备的状态，以及计算单元13，其取出由输入电路12，进行保护继电器的计算。输入电路12包括切换装置14，其在外部输入电压等于或高于阈值电压时，以分压电压除以分压电阻进行导通，以分割外部输入电压;以及光电耦合器16，其操作在恒定电流输出电路的恒定电流，当开关装置14导通时提供恒定电流，并将运算信号输出到计算单元13.版权所有：（C）2011，JPO＆INPIT

2. 发明专利

JP2012085401A Protective relay 有权
标题翻译：保护继电器
公开(公告)号：JP2012085401A
公开(公告)日：2012-04-26
申请号：JP2010227986
申请日：2010-10-07
申请人： Toshiba Corp , 株式会社東芝
发明人： YANAGIBASHI YUSUKE , SHIRAKAWA HIRONORI , MAEHARA HIROYUKI , SUGA NORIYOSHI
IPC分类号： H02H3/02
摘要： PROBLEM TO BE SOLVED: To provide a protective relay that can make an accurate operation determination even if a system fault current including a DC component flows.SOLUTION: The protective relay according to an embodiment includes: an input current transformer for transforming the magnitude of an input current and outputting it as an analog signal; an analog converter circuit for converting the analog signal output from the input current transformer into a predetermined analog signal indicating a predetermined analog signal; an A/D converter circuit for converting the predetermined analog signal converted by the analog converter circuit into a digital signal; an arithmetic processing circuit for performing arithmetic processing based on the digital signal converted by the A/D converter circuit; and a relay output circuit for operating a contact output in accordance with the arithmetic result of the arithmetic processing circuit. The analog converter circuit receives the analog signal output from the input current transformer via a negative resistance circuit having a negative resistance value.
摘要翻译：要解决的问题：提供即使在包括DC分量的系统故障电流流动的情况下也能够进行精确的动作判定的保护继电器。解决方案：根据实施例的保护继电器包括：输入电流互感器，用于变换输入电流的大小并将其作为模拟信号输出; 模拟转换器电路，用于将从输入电流互感器输出的模拟信号转换为指示预定模拟信号的预定模拟信号; A / D转换器电路，用于将由模拟转换器电路转换的预定模拟信号转换为数字信号; 算术处理电路，用于根据由A / D转换电路转换的数字信号进行运算处理; 以及继电器输出电路，用于根据算术处理电路的运算结果来操作接点输出。模拟转换器电路经由具有负电阻值的负电阻电路接收从输入电流互感器输出的模拟信号。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2010011632A Digital protection relay device with communication function 审中-公开
标题翻译：具有通讯功能的数字保护继电器
公开(公告)号：JP2010011632A
公开(公告)日：2010-01-14
申请号：JP2008167954
申请日：2008-06-26
申请人： Toshiba Corp , 株式会社東芝
发明人： SHIRAKAWA HIRONORI , KATONO HIDEYUKI , WAKAMATSU NAOKI
IPC分类号： H02H3/02
摘要： PROBLEM TO BE SOLVED: To suppress a communication-disabled range of a digital protection relay to the minimum even if abnormality occurs in a transmission path. SOLUTION: A digital protection relay device with a communication function includes a central monitoring system 13 monitoring/controlling an electric amount of a main circuit system becoming a protection object, a HUB 14 connected to the central monitoring system 13 and a plurality of digital protection relays 1a, 1b and 1n connected to the HUB 14. Communication circuits 11a, 12a, 11b, 12b, 11n and 12n of the plurality of digital protection relays 1a, 1b and 1n are connected by the transmission path 15 in a loop form. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在传输路径中发生异常，也将数字保护继电器的通信禁止范围抑制到最小。解决方案：具有通信功能的数字保护中继装置包括：监控/控制成为保护对象的主电路系统的电量的中央监控系统13，连接到中央监控系统13的HUB 14以及多个数字保护继电器1a，1b和1n连接到集线器14.多个数字保护继电器1a，1b和1n的通信电路11a，12a，11b，12b，11n和12n以传输路径15连接，。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2012065520A Protective relay 有权
标题翻译：保护继电器
公开(公告)号：JP2012065520A
公开(公告)日：2012-03-29
申请号：JP2010210075
申请日：2010-09-17
申请人： Toshiba Corp , 株式会社東芝
发明人： SHIRAKAWA HIRONORI , YANAGIBASHI YUSUKE , MAEHARA HIROYUKI , SUGA NORIYOSHI
IPC分类号： H02H7/085 , H02H3/02 , H02H3/093 , H02H5/04 , H02H6/00
摘要： PROBLEM TO BE SOLVED: To provide a protective relay capable of reducing a difference between an actual load temperature and a load temperature recorded on the protective relay without using a temperature sensor and the like even when a control power supply of the protective relay is recovered after blackout.SOLUTION: The protective relay calculates a load temperature based on the quantity of electricity of a load to be protected, stores the calculated load temperature in a nonvolatile storage unit as an accumulated load temperature and, when starting, calculates a starting load temperature based on the accumulated load temperature recorded on the nonvolatile storage unit.
摘要翻译：要解决的问题：为了提供一种保护继电器，即使在保护继电器的控制电源时，即使在不使用温度传感器等的情况下也能够减小实际负载温度和记录在保护继电器上的负载温度之间的差异在停电后恢复。
解决方案：保护继电器根据要保护的负载的电量计算负载温度，将计算出的负载温度作为累积负载温度存储在非易失性存储单元中，并且在启动时计算启动负载温度基于记录在非易失性存储单元上的累积负载温度。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011114277A Current input converter 有权
标题翻译：电流输入转换器
公开(公告)号：JP2011114277A
公开(公告)日：2011-06-09
申请号：JP2009271458
申请日：2009-11-30
申请人： Toshiba Corp , 株式会社東芝
发明人： YANAGIBASHI YUSUKE , SHIRAKAWA HIRONORI , TANAKA TOSHIO , MAEHARA HIROYUKI , SUGA NORIYOSHI , SHUDO ITSUO
IPC分类号： H05K1/05
CPC分类号： H01F38/30 , H01F27/2852 , H01F2027/065
摘要： PROBLEM TO BE SOLVED: To shorten a connection from a terminal base as an input portion to a primary side of an internal transformer and to satisfy overcurrent resistance, thereby improving operation efficiency by preventing the mistake of wiring.
SOLUTION: A current input converter 13 insulates an input current, received by the terminal base, converts it into a predetermined analog signal by transformer 14, and converts the analog signal, obtained by the transformer 14, into a digital signal by an A/D converting circuit. The terminal base of the current input converter and one end of primary winding of the transformer are connected to each other by a first metal plate and a second metal plate which are in fixed shapes, and the first metal plate in the fixed shape has one end fitted to the terminal base and the other end fitted to the one end of the primary winding of the transformer. Further, the second metal plate in the fixed shape has one end fitted to the terminal base and the other end fitted to the other end of the primary winding of the transformer, and the terminal base and the other end of the primary winding of the transformer are connected to each other.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：缩短从作为输入部分的端子台到内部变压器的初级侧的连接，并且满足过电流电阻，从而通过防止布线错误来提高操作效率。解决方案：电流输入转换器13将由端子基座接收的输入电流绝缘，由变压器14将其转换为预定的模拟信号，并将由变压器14获得的模拟信号转换为数字信号， A / D转换电路。电流输入转换器的端子基座和变压器的初级绕组的一端通过固定形状的第一金属板和第二金属板彼此连接，并且固定形状的第一金属板具有一端安装到端子座，另一端安装在变压器初级绕组的一端。此外，固定形状的第二金属板的一端装配到端子基座，另一端装配到变压器的初级绕组的另一端，并且端子座和变压器的初级绕组的另一端彼此连接。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2014150689A Digital protective relay 审中-公开
标题翻译：数字保护继电器
公开(公告)号：JP2014150689A
公开(公告)日：2014-08-21
申请号：JP2013019208
申请日：2013-02-04
申请人： Toshiba Corp , 株式会社東芝
发明人： YANAGIBASHI YUSUKE , SHIRAKAWA HIRONORI , MAEHARA HIROYUKI
IPC分类号： H02H3/02 , H02H3/26
摘要： PROBLEM TO BE SOLVED: To reduce arithmetic processing burden in soundness-confirmation processing of an analog input conversion circuit and to ensure the calculation time of an auxiliary function executing in surplus time.SOLUTION: A synthesis circuit 8 acquires a plurality of analog signals from an analog input conversion circuit 2 and outputs a synthetic analog signal in which the analog signals are synthesized to an A/D conversion circuit 3. An arithmetic processing circuit 4 receives a digital signal from the A/D conversion circuit 3 and determines operation by performing predetermined arithmetic processing. Moreover, the arithmetic processing circuit 4 performs processing for confirming soundness of the analog input conversion circuit 2 on the basis of a digital signal 26 corresponding to the synthetic analog signal. For this reason, synthesis processing of the digital signal in the arithmetic processing circuit 4 is not required, and the presence or absence of failure of the analog input conversion circuit 2 is determined only by determining the amplitude of the digital signal 26 corresponding to the synthetic analog signal.
摘要翻译：要解决的问题：减少模拟输入转换电路的稳定性确认处理中的算术处理负担，并确保辅助功能在多余时间执行的计算时间。解决方案：合成电路8从模拟输入转换电路2，并将模拟信号合成的合成模拟信号输出到A / D转换电路3.算术处理电路4从A / D转换电路3接收数字信号，并通过执行预定的算术处理。此外，算术处理电路4基于与合成模拟信号相对应的数字信号26，进行用于确认模拟输入转换电路2的健全性的处理。为此，不需要对运算处理电路4中的数字信号进行合成处理，仅通过确定对应于合成的数字信号26的幅度来确定模拟输入转换电路2的故障的存在或不存在模拟信号。

7. 发明专利

JP2009260830A Switchgear communication system 审中-公开
标题翻译：开关通信系统
公开(公告)号：JP2009260830A
公开(公告)日：2009-11-05
申请号：JP2008109458
申请日：2008-04-18
申请人： Toshiba Corp , 株式会社東芝
发明人： KATONO HIDEYUKI , ISHIDA SATORU , WAKAMATSU NAOKI , SHIRAKAWA HIRONORI
IPC分类号： H04L12/28 , H02B13/065 , H02J13/00 , H04L12/44
摘要： PROBLEM TO BE SOLVED: To provide a switchgear communication system that attains reduction in costs by reducing the number of intra-board communication lines. SOLUTION: A switchgear communication system includes: box bodies 1a, 1b, 1c housing therein electrical appliances; a plurality of communication devices 2a1, 2a2, 2b1, 2b2, 2c1, 2c2 provided in the box bodies 1a, 1b, 1c and connected to a protecting relay; a plurality of HUBs 8a1, 8a2, 8b1, 8b2, 8c1, 8c2 provided in the plurality of communication devices 2a1, 2a2, 2b1, 2b2, 2c1, 2c2 and supplied with power therefrom; intra-board communication lines 9a1, 9b1, 9c1 connecting the plurality of HUBs; and an out-of-board communication line 6 connecting the terminal HUB 8c2 in the plurality of HUBs and a remote monitoring device 7 supervising and controlling a switchgear. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过减少板内通信线路的数量来降低成本的开关设备通信系统。解决方案：开关柜通信系统包括：箱体1a，1b，1c，其内装有电器; 设置在箱体1a，1b，1c中并连接到保护继电器的多个通信装置2a1,2a2,212,1,212,2c1,2c2; 设置在多个通信装置2a1,2a2,2b1,2b2,2c1,2c2中并由其供电的多个HUB 8a1,8a2,8b1,8b8,8c1,8c2; 连接多个集线器的板内通信线路9a1,12b1,9c1; 以及连接多个HUB中的终端HUB 8c2的外部通信线路6以及监视和控制开关设备的远程监控设备7。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009183054A Protection relay with communication function 审中-公开
标题翻译：带通讯功能的保护继电器
公开(公告)号：JP2009183054A
公开(公告)日：2009-08-13
申请号：JP2008019301
申请日：2008-01-30
申请人： Toshiba Corp , 株式会社東芝
发明人： SHIRAKAWA HIRONORI
IPC分类号： H02H3/05 , H02H3/02
摘要： PROBLEM TO BE SOLVED: To provide a protection relay with a communication function, which can transmit a signal indicating normality of a communication function to check its soundness. SOLUTION: In the protection relay 2 with the communication function for transmitting/receiving the operation state data of a distribution system to/from the central monitoring system 1 through a multi-core transmission cable 3, a discriminating circuit 6 for discriminating whether the data of the protection relay 2 with the communication function are normal or not is provided to the central monitoring system 1, and a self-monitoring circuit 9 for monitoring the operation state of the protection relay 2 is provided to the protection relay 2 with the communication function, wherein the discriminating circuit 6 and the self-monitoring circuit 9 are connected together by a free circuit of the multi-core transmission cable 3 as an Ethernet (R) cable. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有通信功能的保护继电器，其可以发送指示通信功能正常的信号，以检查其健全性。解决方案：在具有用于通过多芯传输电缆3向中央监控系统1发送/接收分配系统的操作状态数据的通信功能的保护继电器2中，鉴别电路6用于鉴别是否具有通信功能的保护继电器2的数据是否正常被提供给中央监控系统1，并且用于监视保护继电器2的操作状态的自监控电路9被提供给保护继电器2 通信功能，其中鉴别电路6和自监视电路9通过作为以太网（R）电缆的多芯传输电缆3的空闲电路连接在一起。版权所有（C）2009，JPO＆INPIT

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