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1. 发明专利

JPH11174100A HARMONIC MEASURING DEVICE 失效
公开(公告)号：JPH11174100A
公开(公告)日：1999-07-02
申请号：JP34125297
申请日：1997-12-11
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： YASUKAWA SABURO , KAWASE MINORU , MATSUI YOSHIAKI , KUMAKI SHINICHI , HASUMI TADAO
IPC分类号： G01R23/20 , G01R29/00 , G01R31/00 , G01R31/08
摘要： PROBLEM TO BE SOLVED: To calculate and specify a harmonic generation source in a power system by a simple method. SOLUTION: A harmonic measuring device 1 includes a detecting means 11 for detecting a harmonic current flowing in and out of a harmonic generating source 2 and harmonic voltage of the harmonic generating source 2, and a measuring means 12 for operating the detected harmonic current and harmonic voltage to calculate the harmonic generating source 2. The device further includes a varing means 13 for varying the detected harmonic current and harmonic voltage, and the measuring means 12 is adapted to operated the detected plural harmonic currents and harmonic voltages which are obtained by varying the varying means 3 to calculate the harmonic generating source 2.

2. 发明专利

JP2000328329A ELECTRIC SHOCK RESISTANT GLOVE 失效
公开(公告)号：JP2000328329A
公开(公告)日：2000-11-28
申请号：JP13433099
申请日：1999-05-14
申请人： TOKYO ELECTRIC POWER CO , MOON STAR CO
发明人： KUMAKI SHINICHI , MIURA TORU , AIKAWA TOMOAKI , OTA MIKITO
IPC分类号： A41D19/00
摘要： PROBLEM TO BE SOLVED: To provide an electric shock resistant glove noticing the lowering of the dielectric breakage resistance according to the decrease of the thickness by abrasion with the change of the surface color of the glove and allowing easy and clear recognition of the exchanging timing of the glove by the user. SOLUTION: The coating thickness of the layer 2 from a glove body 1 to the outer surface of the layer is the critical thickness to endure a prescribed voltage at the inside of the glove. The color of the outer surface of the layer 2 is made to be different from the color of the layer 3 applied to the outer surface of the layer 2. The surface color of the glove becomes different between a state having a sufficiently large thickness of the electrical resistance layer to prevent the electric shock and a state having a thickness of the electrical resistance layer possible to cause the electric shock by the further abrasion. Accordingly, the critical state of the electric resistance is clearly shown by the color change to get the attention of the worker and prevent the electrical shock by sure recognition of the exchanging timing to a new glove by the worker.

3. 发明专利

JP2000338141A APPARATUS AND METHOD FOR MEASURING VOLTAGE AND APPARATUS AND METHOD FOR MEASURING ELECTRIC ENERGY 失效
公开(公告)号：JP2000338141A
公开(公告)日：2000-12-08
申请号：JP2000067546
申请日：2000-03-10
申请人： TOKYO ELECTRIC POWER CO
发明人： KUSUMA MAKOTO , YOSHIZAWA KENTARO , KUMAKI SHINICHI
IPC分类号： G01R15/12 , G01R15/06 , G01R19/00 , G01R21/133
摘要： PROBLEM TO BE SOLVED: To measure the voltage and the electric energy with high workability for a long period by detecting the voltage information by a sensor without electrically contacting the sensor with a conductor, and determining the voltage by the operation on the basis of the voltage. SOLUTION: A voltage sensor 2 outputs the voltage information between insulating coated-wires 8, 9 to an A/D converter through an operation amplifier and a filter part. A probe 3 is contacted with an electrode at a load 10 side of a NFB 7 to output the reference voltage to the A/D converter. When an SW4 is pressed, a CPU compares the voltage information with the reference voltage, detects the magnification and the phase difference (correction information), and stores the same in a storage part, and a value of the voltage information is corrected on the basis thereof and stored in the storage part as a voltage value. A current sensor 5 supplies the voltage in proportion to a current value to the A/D converter through the operation amplifier through the insulating coated-wire 8 at the load 10 side of the NFB 7, and stores the same in the storage part. The CPU reads out the voltage value and the current value, and determines the electric power by multiplying the same, the electric power is integrated by time to determine the electric energy, and the electric energy is displayed on a display unit 6.

4. 发明专利

JPH09237392A METHOD AND DEVICE FOR DISCRIMINATING MACHINE KIND OF ELECTRICAL APPLIANCE 失效
公开(公告)号：JPH09237392A
公开(公告)日：1997-09-09
申请号：JP4594196
申请日：1996-03-04
申请人： TOKYO ELECTRIC POWER CO , YOKOGAWA INSTR KK
发明人： KUMAKI SHINICHI , YAMAMOTO TADASHI
IPC分类号： H02J3/00 , G08B17/00
摘要： PROBLEM TO BE SOLVED: To confirm safety in the case of resupplying a power source by discriminating an appliance with heating among after-mentioned appliances from outside of a house even when the resident of the house is not home when various electrical appliance are used by combining at average home. SOLUTION: At the time of resupplying a power source while the resident is not home at average home where the supply of main power to be supplied for the compositely combined various electrical appliances 11 to 1n, a lower voltage of higher frequency than the main power is supplied to the electrical appliances 11 to in from outside to discriminate the presence/absence of an electrical appliance consisting of a simple resistor among the electrical appliances 11 to 1n installed in the house from the current value flowing the electrical appliances 11 to 1n.

5. 发明专利

JPH06346430A SAMPLING METHOD OF SOIL 失效
公开(公告)号：JPH06346430A
公开(公告)日：1994-12-20
申请号：JP15635193
申请日：1993-06-03
申请人： TOKYO ELECTRIC POWER CO , IWABUCHI KK , YASUDA SEISAKUSHO
发明人： KUMAKI SHINICHI , KIKUCHI SHIROHISA , TOKUDA ATSUMI , MIYATA HAJIME
IPC分类号： E02D1/04 , G01N1/08
摘要： PURPOSE:To sample soil easily without requiring power by means of a very simple device. CONSTITUTION:An auger screw 2 having approximately the same pitch of spiral wings 1 from the top to the bottom is revolved to advance from the ground surface 4 into the ground by using an appropriate driving source, and at that time, the auger screw is so revolved that it is made to advance in the ground by one pitch of the spiral wings 1 per revolution. In this way, after the auger screw 2 has been made to advance to the required depth in the ground, the auger screw 2 is pulled out from the ground without revolution, and after that, the soil adhering to the auger screw 2 is sampled.

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