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1. 发明专利

JP2006246600A Device for discriminating power transmission direction in distribution line 有权
标题翻译：用于分配电力传输方向的设备
公开(公告)号：JP2006246600A
公开(公告)日：2006-09-14
申请号：JP2005058229
申请日：2005-03-02
申请人： Energy Support Corp , San'eisha Mfg Co Ltd , Tohoku Electric Power Co Inc , エナジーサポート株式会社 , 東北電力株式会社 , 株式会社三英社製作所
发明人： HIRANO SHINICHIRO , MIURA TAKAYUKI , ISHIKAWA ATSUSHI
IPC分类号： H02H3/38 , G01R22/00
摘要： PROBLEM TO BE SOLVED: To provide a device for discriminating power transmission direction in distribution line, in which a discrimination is made exactly as to whether reverse power flow is produced, by switching the substation or produced from a distributed power supply. SOLUTION: A high-voltage sensor 30, provided in a distribution line 12, is connected with a circuit 42 for deciding power transmission direction during uninterruptible transmission. When the phase difference between a phase voltage and a phase current is in the range from -90° to 90°, the determining circuit 42 determines power transmission direction of the distribution line 12 is that of forward power flow otherwise determines the power transmission direction is that of reverse power flow. A reverse power flow type determining circuit 48 determines whether reverse power flow is produced by switching the substation or produced from a distributed power supply 15, based on the fact whether the phase difference of phase current variation falls within a range of 0°-45°, and the fact whether the phase difference between a phase voltage variation and phase current variation falls within a range from -90° to 90°. When determination result from the determining circuit 48 indicates reverse power flow from the distributed power supply 15, previously determined power transmission direction is locked to that prior to the variation; otherwise it is not locked. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于鉴别分配线中的功率传输方向的装置，其中通过切换变电站或从分布式电源产生的方法来判别是否产生反向功率流。解决方案：设置在配电线路12中的高电压传感器30与用于在不间断传输期间决定电力传输方向的电路42连接。当相电压和相电流之间的相位差在-90°至90°的范围内时，确定电路42确定配电线路12的功率传输方向是正向功率流的方向，否则确定功率传输方向为逆功率流量。反向功率流型确定电路48基于相电流变化的相位差是否在0°-45°的范围内的事实来确定是否通过切换变电站或从分布式电源15产生的反向功率流以及相电压变化和相电流变化的相位差是否在-90°〜90°的范围内的事实。当来自确定电路48的确定结果表示来自分布式电源15的反向功率流时，预先确定的功率传输方向被锁定到变化之前的功率传输方向; 否则没有锁定。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2006242724A Accident direction determination device in distribution line 有权
标题翻译：配送线中的方向方向确定装置
公开(公告)号：JP2006242724A
公开(公告)日：2006-09-14
申请号：JP2005058230
申请日：2005-03-02
申请人： Energy Support Corp , San'eisha Mfg Co Ltd , Tohoku Electric Power Co Inc , エナジーサポート株式会社 , 東北電力株式会社 , 株式会社三英社製作所
发明人： HIRANO SHINICHIRO , MIURA TAKAYUKI , ISHIKAWA ATSUSHI
IPC分类号： G01R31/08 , H02H7/26
CPC分类号： Y04S10/522
摘要： PROBLEM TO BE SOLVED: To provide an accident direction discrimination device in a distribution line capable of discriminating and displaying accurately grounding on the load side based on a substation, even when a reverse tidal current from a distributed power source exists.
SOLUTION: When a grounding accident occurs, it is determined whether the grounding is a load side grounding or not by the first grounding direction determination circuit 39, and the determination result is stored in a storage means of the first grounding direction determination circuit 39. After the grounding accident, a breaker in the substation 11A is tripped, and after elapse of a prescribed time, the distributed power source 15 is stopped by a transfer breaker 14A or the like. Then, it is determined whether the power transmission direction is the same as that of a forward tidal current or not by the second power transmission direction discrimination circuit 37 at the power recovery time when the breaker in the substation 11A is re-closed. It is determined whether display of the load side grounding accident is to be continued or the display is to be reset by the second grounding direction determination circuit 40 based on the discrimination result of the power transmission direction and a generation phase direction of the stored grounding accident.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使当存在来自分布式电源的反向潮汐流时，也可以在配电线路中提供一种能够基于变电站对负载侧的接地进行精确地识别和显示的事故方向识别装置。解决方案：当发生接地事故时，由第一接地方向确定电路39确定接地是否为负载侧接地，并且将确定结果存储在第一接地方向确定电路的存储装置中接地事故发生后，变电站11A中的断路器跳闸，经过规定时间后，分接电源15由转接断路器14A等停止。然后，当变电站11A中的断路器被重新闭合时，在功率恢复时刻确定第二电力传输方向判定电路37的功率传输方向是否与正向潮汐流的方向相同。基于输出方向的判定结果和存储的接地事故的产生相位方向，确定是否要继续负载侧接地事故的显示或第二接地方向确定电路40的显示复位。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005354884A Switching controller and control method of distribution system 审中-公开
标题翻译：交换控制器和分配系统的控制方法
公开(公告)号：JP2005354884A
公开(公告)日：2005-12-22
申请号：JP2004176284
申请日：2004-06-14
申请人： Energy Support Corp , エナジーサポート株式会社
发明人： WATANABE HIROSHI , MIURA TAKAYUKI
IPC分类号： H02H3/38
摘要： PROBLEM TO BE SOLVED: To provide switching controller and control method of distribution system in which unnecessary opening of a load-break switch due to overcurrent of reverse power flow occurring upon service interruption of a distribution line due to some cause can be suppressed.
SOLUTION: When a power flow direction decision section 34 decides reverse power flow, a voltage detection signal of an incoming line 13 arranged with a load-break switch 16 is outputted artificially to an overcurrent detecting section 32 even when the voltage of the incoming line 13 (i.e. control power supply) disappears. Consequently, no-voltage state of the distribution line 11 and the incoming line 13 is not detected at the overcurrent detecting section 32 even if reverse power flow from a distributed power supply 15 is regarded as overcurrent and detected and the distributed power supply 15 is stopped. Open operation (SO operation) of the load-break switch 16 is thereby locked and throw-in state is sustained.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种分配系统的切换控制器和控制方法，其中可以抑制由于某些原因而在分配线的服务中断时发生的反向功率流的过电流导致的负载中断开关的不必要的打开。解决方案：当功率流动方向决定部分34确定反向功率流时，即使当电流流过方向决定部分34的电压为零时，即使输入线路13的负载断路开关16的电压检测信号也被人为地输出到过电流检测部分32 输入线13（即控制电源）消失。因此，即使从分布式电源15的反向电力流被认为是过电流并被检测并且分布式电源15被停止，在过电流检测部分32也没有检测到配电线路11和输入线路13的无电压状态。因此，负载断开开关16的开路动作（SO动作）被锁定，并且保持了投入状态。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005354883A Switching controller and control method of distribution system 审中-公开
标题翻译：交换控制器和分配系统的控制方法
公开(公告)号：JP2005354883A
公开(公告)日：2005-12-22
申请号：JP2004176283
申请日：2004-06-14
申请人： Energy Support Corp , エナジーサポート株式会社
发明人： WATANABE HIROSHI , MIURA TAKAYUKI
IPC分类号： H02H3/38
摘要： PROBLEM TO BE SOLVED: To provide switching controller and control method of distribution system in which unnecessary opening of a load-break switch due to overcurrent of reverse power flow occurring upon service interruption of a distribution line due to some cause can be suppressed. SOLUTION: When throw-in of a load-break switch 16 is sustained by determining overcurrent of reverse power flow occurring upon service interruption of a distribution line 11 due to some cause, signal lines L2r and L2t from current transformers 24r and 24t to an overcurrent detecting section 32 are interrupted. More specifically, a power flow direction decision section 34 opens normal close contacts MS2r and MS2t by exciting an exciting coil 34a when it decides reverse power flow. Consequently, the overcurrent detecting section 32 does not perform overcurrent detection and a control section 35 does not excites a trip coil 25.Consequently, unnecessary opening of the load-break switch 16 due to generation of an overcurrent caused by a fault on the outside of premises can be suppressed. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种分配系统的切换控制器和控制方法，其中可以抑制由于某些原因而在分配线的服务中断时发生的反向功率流的过电流导致的负载中断开关的不必要的打开。解决方案：通过确定由于某些原因导致配电线路11的服务中断而发生的反向功率流的过电流来维持断路开关16的输入，来自电流互感器24r和24t的信号线L2r和L2t 过电流检测部32被中断。更具体地，功率流动方向决定部分34在确定反向功率流动时激励励磁线圈34a来打开正常关闭触点MS2r和MS2t。因此，过电流检测部32不进行过电流检测，控制部35不激励跳闸线圈25.因此，由于由外部的故障引起的过电流的产生，不必要地打开负载断路开关16 房屋可以被抑制。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005354882A Protector and protecting method of distribution system 有权
标题翻译：分配系统的保护和保护方法
公开(公告)号：JP2005354882A
公开(公告)日：2005-12-22
申请号：JP2004176282
申请日：2004-06-14
申请人： Energy Support Corp , エナジーサポート株式会社
发明人： WATANABE HIROSHI , MIURA TAKAYUKI
IPC分类号： H02H3/08 , H02H3/38
摘要： PROBLEM TO BE SOLVED: To provide a protector and a protection method of distribution system in which arrangement of a load-break switch can be simplified.
SOLUTION: When a decision is made that power flows into premises (forward power flow), a control section 35 excites a trip coil 25 to open a load-break switch 17. When a decision is made that power flows out from premises (reverse power flow), the control section 35 does not excite the trip coil 25 but sustains throw-in of the load-break switch 17. Consequently, unnecessary opening of the load-break switch 17 due to generation of an eddy current caused by short circuit failure on the outside of premises can be suppressed in a distribution line 11 linked with a distributed power supply 15 in the premises. Furthermore, an operating power supply voltage on the consumer load 14 side is employed as a reference voltage for judging power flow direction. Since power flow direction is judged based on the phase of a load current I
R for a control power supply voltage Vp, an extra voltage sensor is not required in the load-break switch 17.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种分配系统的保护器和保护方法，其中可以简化负载断路开关的布置。解决方案：当决定功率流入房屋（正向功率流）时，控制部分35激励跳闸线圈25打开负载断路开关17.当决定电力从房屋流出时（反向功率流）时，控制部35不激励跳闸线圈25，而是保持负载断路开关17的插入。因此，由于由于产生的涡电流而引起的负载断路开关17的不必要的打开在与房屋内的分布式电源15连接的配电线路11中，可以抑制房屋外部的短路故障。此外，消费者负载14侧的工作电源电压被用作用于判断电力流动方向的参考电压。由于基于用于控制电源电压Vp的负载电流I R 的相位来判断功率流动方向，所以在负载断路开关17中不需要额外的电压传感器。
COPYRIGHT （C）2006，JPO＆NCIPI

6. 发明专利

JP2011247905A Fault direction identification device for distribution line 有权
标题翻译：用于分配线的故障方向识别装置
公开(公告)号：JP2011247905A
公开(公告)日：2011-12-08
申请号：JP2011188388
申请日：2011-08-31
申请人： Energy Support Corp , San'eisha Mfg Co Ltd , Tohoku Electric Power Co Inc , エナジーサポート株式会社 , 東北電力株式会社 , 株式会社三英社製作所
发明人： HIRANO SHINICHIRO , MIURA TAKAYUKI , ISHIKAWA ATSUSHI
IPC分类号： G01R31/08 , H02H3/38
CPC分类号： Y04S10/522
摘要： PROBLEM TO BE SOLVED: To provide a fault direction identification device for a distribution line that can accurately determine whether or not a fault is a ground fault on a load side with reference to a substation even when a reverse power flow is transmitted from a distributed power supply, and that can display the result of the determination.SOLUTION: In a case of a distributed power supply 15 being interconnected to a distribution system and a transmission direction being changed, a phase current phase difference arithmetic circuit 44 calculates a phase difference Δδ for a variation in phase current based on a result of identification obtained by a transmission direction identification circuit 42. A phase current phase range determination circuit 45 determines whether or not the phase difference before and after the change in the transmission direction is within a range of 0 to 45°. If the phase difference before and after the change is within the range of 0 to 45°, the change is determined as a reverse power flow from the distributed power supply 15. On the other hand, if the phase difference before and after the change is not within the range of 0 to 45°, a phase-voltage-variation/phase-current-variation phase difference arithmetic circuit 46 calculates a phase difference between a voltage variation ΔV and a current variation ΔI, and a variation phase range determination circuit 47 determines whether or not the phase difference before and after the change is within a range of -90 to 90°.
摘要翻译：要解决的问题：为了提供一种用于分配线路的故障方向识别装置，其可以参考变电站准确地确定负载侧的故障是否是接地故障，即使当逆向功率流从分布式电源，并且可以显示确定的结果。解决方案：在分配电源15互连到配电系统并且变化方向的情况下，相电流相位差运算电路44基于结果计算相电流变化的相位差Δδ 由相位电流相位范围确定电路45确定发送方向上的变化前后的相位差是否在0〜45°的范围内。如果变化之前和之后的相位差在0至45°的范围内，则该变化被确定为来自分布式电源15的反向功率流。另一方面，如果改变之前和之后的相位差为不在0〜45°的范围内，相电压变化/相电流变动相位差运算电路46计算电压变化ΔV与电流变化量ΔI之间的相位差，以及变化相位范围确定电路47 确定变化前后的相位差是否在-90〜90°的范围内。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2005354881A Protective device for distribution system and protection method for distribution system 审中-公开
标题翻译：分配系统的保护装置和分配系统的保护方法
公开(公告)号：JP2005354881A
公开(公告)日：2005-12-22
申请号：JP2004176281
申请日：2004-06-14
申请人： Energy Support Corp , エナジーサポート株式会社
发明人： MIURA TAKAYUKI
IPC分类号： H02H3/38
摘要： PROBLEM TO BE SOLVED: To provide a protective device for a distribution system capable of suppressing unnecessary opening of a load switch due to the occurrence of an excess current, caused by accidents outside the premises of a consumer, and to provide a protective method for a distribution system.
SOLUTION: Whether a short-circuit fault has occurred is determined in the power supply side or in the load side of the load switch 16 arranged on a lead-in wire 13 during occurrence of the short-circuit fault, and the load switch 16 is opened or maintained of input, on the basis of the determination results. Namely, when it is determined that there is a short-circuit direction is in the premises (the load side of the load switch 16), a control part 35 excites a trip coil 25 and opens the load switch 16. When it is determined that the short-circuit direction (a short-circuit position) is located outside the premises (the power supply side of the load switch 16), the control part 35 will not excite the trip coil 25 and maintains of input for the load switch 16.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种配电系统的保护装置，其能够抑制由于消费者的房屋外的事故引起的过电流的发生而导致的负荷开关的不必要的打开，并且提供保护分配系统的方法
解决方案：发生短路故障时，在布线在引线13上的负载开关16的电源侧或负载侧确定短路故障是否发生，负载基于确定结果，开关16被打开或保持输入。也就是说，当确定在处所（负载开关16的负载侧）存在短路方向时，控制部分35激励跳闸线圈25并打开负载开关16.当确定短路方向（短路位置）位于房屋外侧（负载开关16的电源侧），控制部35不会激励跳闸线圈25并维持负载开关16的输入。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JPH0945165A FITTING STRUCTURE FOR BUSHING TO DISTRIBUTION APPARATUS 失效
公开(公告)号：JPH0945165A
公开(公告)日：1997-02-14
申请号：JP19216195
申请日：1995-07-27
申请人： NGK INSULATORS LTD , ENERGY SUPPORT CORP
发明人： MATSUMOTO JUNICHI , TAMAI AKISHIRO , ISHIDA KOICHI , MIURA TAKAYUKI , GOTO KAZUNORI
IPC分类号： H01H33/53 , H01B17/00 , H01B17/24 , H01B17/26
摘要： PROBLEM TO BE SOLVED: To provide a fitting structure firmly fitting a bushing having an insulating cover body made of synthetic rubber to the case of a distribution apparatus in the stable state. SOLUTION: A bushing constituted of a conducting member 11 and a synthetic rubber insulating cover body 12 covering it is fitted by an outward flange section 13c provided on the outer periphery of an insulating cover body 13 through the case 15 of a distribution apparatus. A fitting metal 14 is outwardly coupled with the outward flange section 13c of the insulating cover body 13 to compress the outward flange section 13c, and the bushing is fitted to the case 15 by the outward flange section 13c via the fitting metal 14. The outward flange section 13 c is compressed to have high rigidity, and the firm and stable fitting state is obtained.

9. 发明专利

JPH0412419A INSTANT CUTOFF CIRCUIT FOR AUTOMATIC SWITCH 失效
公开(公告)号：JPH0412419A
公开(公告)日：1992-01-17
申请号：JP11404890
申请日：1990-04-27
申请人： ENERGY SUPPORT CORP
发明人： MIURA TAKAYUKI
IPC分类号： H01H9/54 , H01H47/00 , H01H47/04 , H01H47/22
摘要： PURPOSE:To prevent the melting of a contact switch by opening the second switch in a closed loop circuit, and feeding the loop current to a positive-polarity thermistor side. CONSTITUTION:When an abnormal current flows in a power distribution line, the switch 7 of an external device G is closed, a Y-relay 6 is excited, the second relay switch 13 is opened, then a loop current I flows via the induction of an insertion coil CC. The resistance value between contacts of a relay switch 13 is increased immediately before the relay switch 13 is opened by the loop current I. The resistance value of the relay switch 13 exceeds the resistance value of a positive-polarity thermistor 14 by this resistance rise, and the loop current I is fed to the thermistor 14 side. A spark discharge rarely occurs between the contacts of the relay switch 13, and the melting of contacts of the second relay switch 13 can be prevented.

10. 发明专利

JPH0945168A BUSHING FOR DISTRIBUTION APPARATUS 失效
公开(公告)号：JPH0945168A
公开(公告)日：1997-02-14
申请号：JP19217095
申请日：1995-07-27
申请人： NGK INSULATORS LTD , ENERGY SUPPORT CORP
发明人： MATSUMOTO JUNICHI , TAMAI AKISHIRO , ISHIDA KOICHI , MIURA TAKAYUKI , GOTO KAZUNORI
IPC分类号： H01H33/53 , H01B17/00 , H01B17/26
摘要： PROBLEM TO BE SOLVED: To simplify the structure of a bushing by directly fitting the polymer bushing to the case of a distribution apparatus via an outward flange integral with an insulating cover body. SOLUTION: This bushing for a distribution apparatus is provided with a conducting member 11, an insulating cover body 13 covering the conducting member 11, and an outward flange 14. The insulating cover body 13 is made of silicone rubber. The outward flange 14 is made of an epoxy resin to increase its rigidity, the bushing can be directly fitted to a case by the flange section 14b of the outward flange 14 in the firm and stable state, and the structure of the bushing is simplified.

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