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1. 发明专利

JPH0818111A LAMINAR COPPER OXIDE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0818111A
公开(公告)日：1996-01-19
申请号：JP14426794
申请日：1994-06-27
申请人： KOKUSAI CHODENDO SANGYO GIJUTS , CHUGOKU ELECTRIC POWER , MATSUSHITA ELECTRIC IND CO LTD
发明人： SEICHI NOBUAKI , ADACHI SEIJI , YAMAUCHI HISAO
IPC分类号： C01G1/00 , C01G3/00 , C30B29/22 , H01L39/02 , H01L39/24
摘要： PURPOSE:To provide laminar copper oxide of a non-superconductor, which has the excellent junction property with a superconductor YAa2Cu3O7, without finely adjusting amount of oxygen, and the manufacturing method thereof. CONSTITUTION:This laminar copper oxide is expressed by the chemical composition formula of Ln1-xPrxBa2Cu4O8 (0.8

2. 发明专利

JP2001045653A INSULATION DETERIORATION DECIDING METHOD FOR INSULATION DETERIORATION DETECTION DEVICE OF CORD PLUG USING STATISTICAL DECISION SYSTEM OF CURRENT WAVEFORM 失效
公开(公告)号：JP2001045653A
公开(公告)日：2001-02-16
申请号：JP21481699
申请日：1999-07-29
申请人： CHUGOKU ELECTRIC POWER , TEMPEARL INDUSTRIAL
发明人： SEICHI NOBUAKI , KAJIMOTO KAZUHIRO , TSUBAKI MAKOTO , YAMAMOTO JUNICHI
IPC分类号： G01R31/12 , H02H3/50
摘要： PROBLEM TO BE SOLVED: To provide a deciding method on insulation deterioration occurred in a cord plug for outputting a warning signal, when the occurrence of initial insulation deterioration is detected and outputting an interruption signal when the progress of insulation deterioration is detected. SOLUTION: A device which executes a method is constituted of a current detection sensor part 1, converting current flowing in a line 15 into a voltage signal and outputting the voltage signal, a filter part 2 outputting only the component of a high-frequency voltage signal from the voltage signal, an A/D converter part 5 converting the high-frequency voltage signal line a digital voltage value at every time range of not more than several milliseconds, a voltage sensor part 3 detecting the voltage of the line, a voltage conversion part 4 converting the output signal of the voltage sensor part 3 into a phase signal, a feature quantity extraction part 6 integrating degrees for plural areas from the digital voltage value and the phase signal, an inference part 7 digitizing the progress degree of insulation deterioration into an insulation deterioration value from the degrees for the plural areas, an insulation deterioration integration part 8 integrating the deterioration integrated value from the insulation deterioration value, a decision part 9 deciding warning from the size of the deterioration integrated value and a warning output part receiving the decision output of the decision part 9 and outputting a warning.

3. 发明专利

JP2000171505A METHOD AND DEVICE FOR TESTING RELAY FOR PROTECTING DISTRIBUTION LINE FROM GROUND FAULT 失效
公开(公告)号：JP2000171505A
公开(公告)日：2000-06-23
申请号：JP34378398
申请日：1998-12-03
申请人： CHUGOKU ELECTRIC POWER
发明人： SEICHI NOBUAKI
IPC分类号： G01R31/00 , H01H47/00 , H02H3/05 , H02H3/347
摘要： PROBLEM TO BE SOLVED: To enable the computation or evaluation of unbalance in the zero-phase primary current and electrostatic capacitance to the ground of each feeder at the time of an arbitrary-resistance ground fault by highly precisely computing the values of the primary current (current to be measured) of a ZCT provided for each feeder of residual components and at the time of a one-time one-phase ground fault of a bus and highly precisely computing the zero-phase admittance to the ground and reverse phase admittance to the ground of each feeder. SOLUTION: An input/output circuit 5 connected to the terminals of a GPT 1, a ZCT 2, a DGR 3, and an OVGR 4, a measuring and outputting device 6 connected to the input/output circuit 5, and a computer PC and a printer LP connected to the measuring and outputting device 6 are arranged. A device system X is constituted so as to include the one-phase grounding operation of a bus, to perform input/output to the GPT 1, the ZCT 2, the DGR 3, and the OVGR 4 by instructing operation from the computer PC via the measuring and outputting device 6 and the input/output circuit switching device 5, and to acquire data on the output of the device to perform computation processing and display and output processing.

4. 发明专利

JP2001041993A METHOD FOR DETERMINING OPERATION OF CIRCUIT BREAKER OF CORD/PLUG INSULATION DEGRADATION DETECTING DEVICE THROUGH USE OF SYSTEM FOR DIRECTLY DETERMINING ELECTRIC CURRENT WAVEFORM 失效
公开(公告)号：JP2001041993A
公开(公告)日：2001-02-16
申请号：JP21481599
申请日：1999-07-29
申请人： CHUGOKU ELECTRIC POWER , TEMPEARL INDUSTRIAL
发明人： SEICHI NOBUAKI , KAJIMOTO KAZUHIRO , TSUBAKI MAKOTO , YAMAMOTO JUNICHI
IPC分类号： G01R31/02 , G01R31/04 , H01H73/00
摘要： PROBLEM TO BE SOLVED: To provide a method for determining the operation of the circuit breaker of an insulation degradation detecting device to break a circuit to prevent an electric fire in the case of detecting a specific current flowing through an insulation-degraded part which occurs in a cord/plug. SOLUTION: This method uses a routine means constituted of a current signal amplifying part 2 to amplify the output signal of a current sensor part 1, a voltage phase detecting part 4 to convert the output signal of a voltage sensor part 3 into a rectangular-wave voltage phase signal, a peak current detecting part 5 to output the peak value of a current from the output signals of the current signal amplifying part 2 and voltage phase detecting part 4, and a determining part 7 to determine whether to output a break signal or not from the peak current value of the peak current detecting part 5 and to output a detection signal.

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