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1. 发明专利

JP2010074866A Grounding fault sequence breaker 有权
标题翻译：接地故障序列断路器
公开(公告)号：JP2010074866A
公开(公告)日：2010-04-02
申请号：JP2008235845
申请日：2008-09-16
申请人： Meidensha Corp , 株式会社明電舎
发明人： SAITO JUICHI , KIMURA KIYOSHI
IPC分类号： H02H7/26 , G01R31/08 , H02H3/033
摘要： PROBLEM TO BE SOLVED: To minimize the damage caused by ground fault, by shortening the time required for detection and break of a faulty circuit and restraining it from unnecessarily breaking a sound circuit, in a grounding fault sequence breaker which is installed in a substation.
SOLUTION: A grounding fault sequence breaker which is installed in the substation, where a plurality of circuits are connected via a line switch LS1 or LS2 to a bus, determines whether circuits are connected to the faulty system F1 by reading in signals that shows the connecting situation of the switch LS1 or LS2, and outputs a break command to only circuits connected to the faulty circuit when breaking the circuits in order.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了尽量减少接地故障造成的损坏，通过缩短故障电路的检测和断开所需的时间并限制其不必要地断开声音电路，在安装在接地故障序列断路器中变电站解决方案：安装在变电站中的多个电路通过线路开关LS1或LS2连接到总线的接地故障序列断路器通过读取信号中的信号来确定电路是否连接到故障系统F1 示出了开关LS1或LS2的连接情况，并且在按顺序断开电路时，仅向连接到故障电路的电路输出断开命令。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP3852548B2 失效
公开(公告)号：JP3852548B2
公开(公告)日：2006-11-29
申请号：JP2000016408
申请日：2000-01-26
IPC分类号： H01H33/59 , H02H3/08 , H02B1/40 , H02H3/033 , H02J3/38

3. 发明专利

JP2920072B2 失效
公开(公告)号：JP2920072B2
公开(公告)日：1999-07-19
申请号：JP16755894
申请日：1994-06-28
申请人： NAKAJIMA DENKI SEISAKUSHO KK
发明人： NAKAJIMA MASAJI
IPC分类号： G01R31/02 , H02H3/033 , H02H3/06 , H02H7/26

4. 发明专利

JP2814190B2 失效
公开(公告)号：JP2814190B2
公开(公告)日：1998-10-22
申请号：JP33703193
申请日：1993-12-28
IPC分类号： H02H3/08 , H02H3/00 , H02H3/033 , H02H3/06 , H02J3/00

5. 发明专利

JPH1075525A LEAK DETECTING/REMOVING METHOD 失效
公开(公告)号：JPH1075525A
公开(公告)日：1998-03-17
申请号：JP24548396
申请日：1996-08-29
申请人： CENTRAL RES INST ELECT
发明人： YOSHIMITSU TSUKASA
IPC分类号： G01R31/02 , H02H3/033 , H02H3/06 , H02H3/16 , H02H3/33
摘要： PROBLEM TO BE SOLVED: To detect a leak position quickly and easily as a position in one of branch circuits divided by branch breakers, and remove that position so as to make the other normal branch circuits operate normally. SOLUTION: After the power distribution line of a power user enters a main breaker 1 and a leakage current detector 2, the distribution line is divided into a plurality of branch circuits 41-48 by a plurality of branch breakers 31-38. If leak is detected by the leakage current detector 2 while a power is supplied through the power distribution line the main breaker 1 is opened in accordance with the command of a breaker control circuit 5 and then the branch breakers 31-38 are opened. After all the branch breakers 31-38 are opened, the main breaker 1 is closed. After that, the branch breakers 31-38 are closed one by one. If the leak is detected by the leakage current detector 2 when one branch breaker is closed, the branch breaker of that branch circuit is opened and kept in the open state to remove the leaking circuit.

6. 发明专利

JPH09103026A METHOD FOR DETECTING FAINT GROUND FAULT LINE 失效
公开(公告)号：JPH09103026A
公开(公告)日：1997-04-15
申请号：JP25793595
申请日：1995-10-04
申请人： NISSIN ELECTRIC CO LTD
发明人： OKUDA MAKOTO
IPC分类号： G01R31/02 , H02H3/033 , H02H3/16
摘要： PROBLEM TO BE SOLVED: To make possible to perform test opening function even in power interchange through an auxiliary bus by test opening the distribution line one by one upon occurrence of a faint ground fault thereby specifying the faint ground fault line. SOLUTION: Each distribution line is provided with a ground fault sequence switch 10G and the test open timing of its own circuit breaker is modified from the initial timing depending on the fact whether the circuit breaker 52A, 52B, where the auxiliary bus 6, 7 is provided with the ground fault sequence switch 10G, is conducting or not. According to the method, two distribution lines are not interrupted simultaneously and the distribution line, on which a faint ground fault occurs, can be specified accurately.

7. 发明专利

JPH0993784A POWER SAVING AND OVERLOAD AVOIDANCE APPARATUS AND POWER SAVING AND OVERLOAD AVOIDANCE METHOD 失效
公开(公告)号：JPH0993784A
公开(公告)日：1997-04-04
申请号：JP25050395
申请日：1995-09-28
申请人： KATAGIRI SEISAKUSHO KK , REBUN ENG KK , ZAOU SEISAKUSHO KK , KITA NIPPON DENSHI KK
发明人： YAMAGUCHI KENICHI
IPC分类号： H01H73/00 , H02H3/033 , H02H3/06 , H02J13/00
摘要： PROBLEM TO BE SOLVED: To prevent closing of a main breaker when a current exceedes the rated current by selecting branching breakers having a remote opening/closing function for opening a necessary number of breakers selected in accordance with the lower priority set by the particular expression to open the selected breakers. SOLUTION: A remote opening/closing signal generator executes calculation in the arithmetic means and calculates, when a value Is of excessive current exists (Is

8. 发明专利

JPH08294223A POWER SUPPLY CUTOFF APPARATUS 失效
公开(公告)号：JPH08294223A
公开(公告)日：1996-11-05
申请号：JP9568195
申请日：1995-04-20
申请人： FUJITSU GENERAL LTD
发明人： UEDA KENICHI
IPC分类号： H02H3/033
摘要： PURPOSE: To cut off a load by a power supply breaker in a general house, etc., following the predetermined priority order of the load cutoff when an overload state is produced. CONSTITUTION: A plurality of relays 3, etc., and loads 8, etc., connected to the relays 3, etc., are associated with each other in the degree of the influence of a power supply cutoff as a reference. A priority is given to the order of the cutoff of the relay by a setting input unit 15 and stored in a memory unit 13. A total load current is detected by a load current detection unit 2 and detected datum is supplied to a control unit 20. The control unit 20 makes a comparing unit 14 compare the detected datum with an alarm reference current or a cutoff reference current. If the detected datum exceeds the alarm reference current, a required indication is displayed on an alarm display unit 17 or a required alarm is given by an alarm unit 19. If the detected datum is further increased and exceeds the cutoff reference current, the relays are successively cut off following the priority order until the detected datum is decreased to a value not larger than the cutoff reference current. The cutoff is restored by a resetting unit 21, etc.

9. 实用新型

JP3025285U 失效
公开(公告)号：JP3025285U
公开(公告)日：1996-06-11
申请号：JP508694
申请日：1994-03-11
IPC分类号： H02H3/08 , G08B21/00 , H02H3/033

10. 发明专利

JPH07193971A POWER INTERRUPTION SYSTEM 失效
公开(公告)号：JPH07193971A
公开(公告)日：1995-07-28
申请号：JP33217393
申请日：1993-12-27
申请人： TOKYO GAS CO LTD
发明人： TANAKA TAKASHI , FURUKAWA HIDEKI , KANEKO ISAO , FUJISAWA KAZUYA , MASUKO TOKUSHIGE , KOMAKI MICHINORI , NAKAYAMA KANAKO
IPC分类号： H02H3/08 , H02H3/00 , H02H3/033
摘要： PURPOSE:To protect an electric appliance previously against over-loading while using power efficiently by interrupting power to electric appliances connected with adapters according to a priority set by a breaker when the current exceeds the contract limit. CONSTITUTION:Interruption signals are delivered to the receiver in an adapter 2 according to an order set by a setting means and a second circuit breaker 22 is actuated. The interruption signals are delivered sequentially until the current through the feeder circuit drops below a contract current limit. If the current of feeder circuit does not drop below the contract current limit even after the least significant interruption signal is delivered, a first circuit breaker functions. This system realizes efficient use of power and protects the electric appliance against over-loading due to abrupt power interruption.

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