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1. 发明专利

JP2003230225A LOCATING SYSTEM FOR FAULT POINT 审中-公开
公开(公告)号：JP2003230225A
公开(公告)日：2003-08-15
申请号：JP2002024304
申请日：2002-01-31
申请人： CHUBU ELECTRIC POWER , TOSHIBA CORP , TOSHIBA SYST TECH
发明人： WAZAWA YOSHIHIKO , IMAI SHIGENORI , YOKOYAMA AKIRA , INUKAI MICHIHIKO , HANZAWA KOJI , KAGAMI TOSHIRO , KOMAKI TOMOYOSHI , SATO SHIGERU , TAKEDA AKIO , TAKANI HIDEYUKI , OKAZAKI MASATO
IPC分类号： G01R31/08 , H02H3/40
摘要： PROBLEM TO BE SOLVED: To attain highly accurate localization of a fault point and shortening of locating time of the fault point. SOLUTION: A terminal device of each terminal comprises a means 3 calculating data on a quantity of electricity in a power system fetched by an input means 1 by sampling based on time information for synchronization to detect generation of a system accident, a memory 4 storing the data on the quantity of electricity for a fixed time before/after the system accident when it is detected, a means 5 fetching time information with which a system accident detection means is operated and time information when a cut-off operating command is output to a breaker from a protective device 6 to generate a timing signal of starting/ending extraction of the data of the quantity of electricity, a means 7 extracting the data on the quantity of electricity for a fixed time before accident generation from the memory and the data on the quantity of electricity for a fixed time before/after a cut-off command output to the breaker from the protective device 6 when the timing signal of starting/ending extraction of this data on the quantity of electricity is input, and a transmission means 8 transmitting the data on the quantity of electricity extracted by this means 7 in accordance with requirement from a central processing unit. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2001109781A SYSTEM FOR COLLECTING DATA 失效
公开(公告)号：JP2001109781A
公开(公告)日：2001-04-20
申请号：JP29039699
申请日：1999-10-13
申请人： TOSHIBA CORP , TOSHIBA SYST TECH
发明人： HASHIMOTO TAKU , KANAI TETSUYA , TAKEDA AKIO
IPC分类号： G01R31/08 , G06F17/40 , H02J13/00
摘要： PROBLEM TO BE SOLVED: To collect data taking synchronization. SOLUTION: A clock signal generating means 1 generates a clock signal by a receiving signal from a GPS satellite 101. A sampling signal generating means 2 generates a sampling signal SSP with a clock signal as a standard. A digital data generating means 3 executes sampling from an analog electricity amount fetching means 9, executes conversion into digital data, adds a sampling number and an absolute time by the calculation of a time data calculation processing means 8 and generates data with previous and absolute synchronization. An accident detecting means 4 outputs a start signal when an accident is detected and a data storage means 5 stores digital data, the sampling number and the absolute time for the portion of a prescribed time range. A data output means 6 outputs stored data to an external part through a communication network 103.

3. 发明专利

JP2000241489A FAILURE POINT ORIENTATION DEVICE 失效
公开(公告)号：JP2000241489A
公开(公告)日：2000-09-08
申请号：JP4617599
申请日：1999-02-24
申请人： TOSHIBA CORP
发明人： TAKEDA AKIO
IPC分类号： G01R31/08 , H02H3/40
摘要： PROBLEM TO BE SOLVED: To output an oriented value after correcting the difference between a line length settling caused by difference between a transmission line dip or topographical altitude and an actual length. SOLUTION: This device is equipped with an orientation operation part 1 for calculating the distance to a trouble point by using voltage and current data converted into digital quantities and for outputting an oriented value, and a correction calculation part 2 for executing a correction calculation of the difference between a settled electric line length and an actual plane transmission line length relative to the oriented value outputted from the orientation operation part 1. Hereby, as for line length settling, conversion from a plane distance to an actual length is executed before an orientation operation, or as for the obtained oriented value, the actual length is reconsidered to a plane distance to execute the line length settling of the transmission line by treating as a plane length. Therefore, in spite of the difference of treating relative to the line length, that the orientation operation is executed by an actual length, an orientation error caused thereby can be improved, and a trouble point orientation device having higher accuracy can be provided.

4. 发明专利

JP2000214210A ACCIDENT POINT LOCATER 失效
公开(公告)号：JP2000214210A
公开(公告)日：2000-08-04
申请号：JP1202599
申请日：1999-01-20
申请人： TOSHIBA CORP
发明人： TAKEDA AKIO , KUROSAWA YASUHIRO
IPC分类号： G01R31/08 , H02H3/28 , H02H3/40
摘要： PROBLEM TO BE SOLVED: To make measurable without a function of selecting an accident phase if sampling synchronization between electric amount data between circuits is not taken in advance. SOLUTION: In the accident point locater, a data reception part 11 receives a signal of a PCM current differential relay, and measures a reception timing in a transmitted signal from its own end. An accident detection part 12 detects an accident on a transmission line based on the received current data, and outputs an activation signal. When a data storage part 13 accepts the activation signal, it stores and holds a certain range during the occurrence of an accident of an electric amount data stored. A synchronization correction part 14 performs a synchronization correction process between respective circuits with respect to the stored and held data. A locating calculation part 16 receives from a setting part 15 an impedance value and a line length in proportion to three phases of the transmission line as a setting value, and determine the distance to an accident point by use of the stored and held data which are performed the synchronization correction process, the impedance setting and line length setting in proportion to three phases, to output a location value.

5. 发明专利

JPH11183554A FAULT POINT LOCATING DEVICE 失效
公开(公告)号：JPH11183554A
公开(公告)日：1999-07-09
申请号：JP36377497
申请日：1997-12-17
申请人： TOSHIBA CORP
发明人： TAKEDA AKIO , HASHIMOTO TAKU
IPC分类号： G01R31/08
摘要： PROBLEM TO BE SOLVED: To provide a fault point locating device in which a fault point can be located precisely on the basis of the computed result of a stable time zone by a method wherein the computed result of a maximum time zone in which the difference between the maximum value and the minimum value of a distance up to the fault point is smaller than a prescribed value is used as the distance up to the fault point. SOLUTION: When a system fault is generated, a locating and computing part 5 uses time-series digital data stored in a storage circuit 4 so as to compute a distance up to a fault point at a set cycle, and distances corresponding to respective points of time are stored as time-series distance data. Then, a convergence judgment part 6 selects a maximum value and a minimum value from among the time-series distance data. The computed result of a maximum continuous time zone out of a time zone in which the state that their difference is smaller than a prescribed value is used as the distance up to the fault point so as to be output from an output circuit 7. consequently, even when the difference between the maximum value and the minimum value becomes smaller than the prescribed value by chance in a time zone in which the computed result is unstable, the state is not continued long. As a result, the computed result of the time zone is not selected, the computed result of a time zone which is sufficiently stable is selected, and a precise distance is determined.

6. 发明专利

JPH06222102A TROUBLE POINT PLOTTING APPARATUS 失效
公开(公告)号：JPH06222102A
公开(公告)日：1994-08-12
申请号：JP2863593
申请日：1993-01-25
申请人： KYUSHU ELECTRIC POWER , TOSHIBA CORP
发明人： SHIMONAGA HIROSHI , TAKEDA AKIO
IPC分类号： G01R31/08
摘要： PURPOSE:To avoid transmission failure by providing an electric current voltage collecting means, a means to detect the occurrence of a trouble on a transmission cable, a means to transmit the quantity of volage and current to one site, and a means to control the transmission starting timing at the time of a trouble. CONSTITUTION:A synchronizing signal producing means 23 normally produces a sampling synchromizing signal based on self terminal current and voltage data out of an input processing means 20 and terminal apparatus' current and voltage data obtained out of a transmission controlling means 24 via a reception means 21 and the signal is sent to a terminal apparatus by a signal sending means 26 via the transmission controlling means 24. A trouble detecting and processing means 22 determines whether troubles occur in a system or not based on the current and voltage data obtained out of the processing means 20. In the case trouble occurrence is detected, a data freezing means 25 and a plotting means 27 are set to memorize the self-terminal current and voltage data for plotting calculation and the data is transmitted to the plotting means 27. The standardizing means 27 carries out plotting calculation when data of all the terminals including the terminal of itself is gathered.

7. 发明专利

JP2009247117A Device for monitoring electrical equipment 审中-公开
标题翻译：用于监测电气设备的装置
公开(公告)号：JP2009247117A
公开(公告)日：2009-10-22
申请号：JP2008090767
申请日：2008-03-31
申请人： Toshiba Corp , Toshiba Syst Technol Corp , 東芝システムテクノロジー株式会社 , 株式会社東芝
发明人： KASAI MIYUKI , TAKEDA AKIO , KOSUGI MITSUGI
IPC分类号： H02J13/00 , G01R11/00 , G01R21/00 , G01R31/02 , H02H3/16 , H02J3/00
CPC分类号： Y02E60/7853 , Y04S40/126
摘要： PROBLEM TO BE SOLVED: To provide a method and device for monitoring an electrical equipment that presents an advanced, multi-function monitoring device required for satisfying various security services. SOLUTION: The device for monitoring the electrical equipment includes an insulation monitoring means 10 -1 for detecting poor insulation of an electrical equipment, a demand monitoring means 10 -2 for measuring and monitoring the used power value, a function switching means 10 -3 for switching either or both of the insulation monitoring means 10 -1 and the demand monitoring means 10 -2 , a display means 10 -4 for displaying information about a monitoring means selected by the function switching means 10 -3 , and a wireless communication means 10 -5 for transmitting information about a monitoring means selected by the function switching means 10 -3 to the outside. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于监视电气设备的方法和装置，其提供满足各种安全服务所需的先进的多功能监控设备。解决方案：用于监测电气设备的装置包括用于检测电气设备绝缘不良的绝缘监测装置10 -1 ，需求监测装置10 < 用于测量和监测所使用的功率值的功能切换装置10 -3 用于切换绝缘监测装置10 -1 和需求监测装置10 < SB> -2 ，用于显示关于由功能切换装置10选择的监视装置的信息的显示装置10 -3 ，以及无线通信用于将关于由功能切换装置10 -3 选择的监视装置的信息发送到外部的装置10 -5 。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2003202357A METHOD AND APPARATUS FOR INSULATION MONITORING 审中-公开
公开(公告)号：JP2003202357A
公开(公告)日：2003-07-18
申请号：JP2002232870
申请日：2002-08-09
申请人： TOSHIBA CORP
发明人： MAEHARA HIROYUKI , FUKAMI TOSHIHIRO , TAKEDA AKIO , KANEWA HITOSHI , SUGA NORIYOSHI , SHINODA SATOSHI
IPC分类号： G01R31/02 , G01R27/18 , H02H3/347
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus wherein leakage part of current is detected with satisfactory accuracy by measuring only a zero-phase current and a high detection accuracy is realized without an additional facility such as an injection transformer or the like. SOLUTION: An initial vector quantity IO 1 of the zero-phase current is calculated on the basis of the zero-phase current in an initial state to start an insulation monitoring operation while a power-supply voltage is used as a reference quantity (Measuring step S101 in the initial state), and the vector quantity IO 1 is stored (Storage step S102 in the initial state). A monitoring vector quantity IO 2 of the zero-phase current is calculated on the basis of the zero-phase current measured in an ordinary state after the end of the initial state while the power-supply voltage is used as the reference quantity (Measuring step S103 in the ordinary state). A difference vector quantity IO 21 between the monitoring vector quantity IO 2 and the initial vector quantity IO 1 is calculated, an insulation defect identification process is performed on the basis of a vector-quantity decision condition that an absolute value of the difference vector quantity IO 21 is larger than an insulation-defect threshold value Ik (Determing step S104 of the insulation defect), and the insulation defect is determined when the vector- quantity decision condition is established. COPYRIGHT: (C)2003,JPO

9. 发明专利

JPH10257665A MULTIPLE TERMINAL TRANSMISSION LINE OVERLOAD DETECTION RELAY DEVICE 失效
公开(公告)号：JPH10257665A
公开(公告)日：1998-09-25
申请号：JP7673897
申请日：1997-03-13
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： TAKEDA AKIO , HASHIMOTO TAKU , MATSUO TOSHIYUKI
IPC分类号： H02H3/40
摘要： PROBLEM TO BE SOLVED: To resolve the overload of an arbitrary section. SOLUTION: Transmission lines S (S1-S5) are linked with each other, through halfway branch points and composed of (n) terminals T (n>=4). In order to detect the overload of an overload detection object section W, which is a section in the transmission lines between the halfway branch points R1 and R2, respective terminal devices 100 are provided, so as to correspond to the respective terminals T (T1-T4) to fetch information data of currents which are applied to the respective terminals T and to output cut-off command signals to breakers K, which cut off the currents applied to the respective terminals T. The information data of the respective currents are fetched from the respective terminal devices 100 to a judgment device 101 through transmission routes U and, based on the fetched information data, the judgment device 101 judges the overload state of the section and generates a cut off object selection signal, so as to resolve the overload state of the section and outputs the cut-off command signal to the corresponding terminal device 100.

10. 发明专利

JPH1019965A FAULTY POINT LOCATING EQUIPMENT 失效
公开(公告)号：JPH1019965A
公开(公告)日：1998-01-23
申请号：JP18702196
申请日：1996-06-28
申请人： TOSHIBA CORP
发明人： TAKEDA AKIO , SHUDO ITSUO , YAMAURA MITSURU
IPC分类号： G01R31/08
摘要： PROBLEM TO BE SOLVED: To enable accurate location of a faulty point even when sampling of voltage/current data at each terminal of a multi-terminal transmission line is not synchronized. SOLUTION: Voltage/current data at each terminal of a multi-terminal transmission line are received by data receiving parts 1 and 2. Based on the voltage/ current data on a first circuit and those on a second circuit received by the data receiving parts 1 and 2, an SP(sampling timing) difference measuring part 3 measures a sampling timing difference Φ between them. Based on the sampling timing difference Φ measured by the SP difference measuring part 3, phase correction is executed in an SP difference correcting part 4 in regard to the voltage/current data on the first or second circuit with either the first or second circuit made a reference, and a location computation part 5 executes the computation of location of a faulty point on the basis of the voltage/current data made the reference and the voltage/current data corrected in the SP difference correcting part.

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