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1. 发明专利

JP2007225625A Leakage current interrupting device and method 有权
标题翻译：泄漏电流中断装置和方法
公开(公告)号：JP2007225625A
公开(公告)日：2007-09-06
申请号：JP2007152754
申请日：2007-06-08
申请人： Toyoji Ahei , Ono Takemi , Zumoto Yorikazu , 大野武美 , 豊次阿閉 , 頭本頼数
发明人： AHEI TOYOJI , MIYAZAWA KIYOSHI
IPC分类号： G01R31/02 , G01R27/18
摘要： PROBLEM TO BE SOLVED: To provide leakage current interrupting device and method for intercepting a measured conductor line based on the detected value by detecting only leakage current Igr resulting from an insulation to the earth resistance.
SOLUTION: Leakage current I which flows to the measured conductor line A is detected, the detected leakage current I is converted into a voltage, harmonic component is removed from the voltage after the conversion, the voltage V1 after the harmonic component is removed and the voltage V2 from the voltage line of the measured conductor line A is detected, and the harmonic component is removed from the detected voltage V2. The phase angle θ of the leakage current I which flows to the measured conductor line A is accurately obtained based on the voltage V2 which removed the harmonic component, only the leakage current Igr which originates to the earth insulation resistance from the accurate phase angle θ and the effective value I
0 of the voltage V1 after the conversion from which the harmonic component was removed is computed, the computed leakage current Igr is supervised, and when the leakage current Igr exceeds an arbitrary value, the measured conductor line A is intercepted.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供泄漏电流中断装置和方法，用于通过仅检测由绝缘到接地电阻的漏电流Igr，基于检测值截取测量的导体线。解决方案：检测流到测量导线A的泄漏电流I，将检测到的漏电流I转换为电压，从转换后的电压中去除谐波分量，去除谐波分量后的电压V1 并且检测来自测量导体线A的电压线的电压V2，并且从检测到的电压V2中除去谐波分量。基于去除了谐波分量的电压V2，仅从源于精确相位角θ的接地绝缘电阻的漏电流Igr，精确地获得流向被测导体线A的漏电流I的相位角θ，计算去除了谐波分量的转换后的电压V1的有效值I 0 ，监视计算出的漏电流Igr，当漏电流Igr超过任意值时，导线A截获。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007047181A Leak current detection device and method 有权
标题翻译：泄漏电流检测装置及方法
公开(公告)号：JP2007047181A
公开(公告)日：2007-02-22
申请号：JP2006251440
申请日：2006-09-15
申请人： Toyoji Ahei , 豊次阿閉
发明人： AHEI TOYOJI
IPC分类号： G01R31/02 , G01R25/00 , G01R27/18
摘要： PROBLEM TO BE SOLVED: To detect leak current caused by ground insulation resistance. SOLUTION: This leak current detection device comprises: a leak current detection section 10 for detecting leak current from a measured line; an amplifying section 11 for converting the detected leak current into voltage and amplifying converted voltage; a first harmonic component removing section 12 for removing a harmonic component included in the voltage amplified by the amplifying section, a voltage detection section 14 for detecting voltage from the measured line; a second harmonic component removing section 16 for removing a harmonic component included in the detected voltage; a phase difference detection section 20 for detecting phase difference from two voltage signal waveforms from which harmonic component is removed; a frequency calculation section 21 for calculating frequency occurring in the measured line of which voltage is detected by the voltage detection section based on the voltage signal waveforms from which harmonic component is removed by the second harmonic component removing section; and a phase angle calculating means 22 for calculating phase angle of the leak current based on the phase difference detected by the phase difference detection section and frequency calculated by the frequency calculation section. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：检测由接地绝缘电阻引起的漏电流。解决方案：该漏电流检测装置包括：泄漏电流检测部分10，用于检测来自测量线路的泄漏电流; 用于将检测到的漏电流转换成电压并放大转换电压的放大部分11; 用于去除由放大部分放大的电压中包含的谐波分量的一次谐波分量去除部分12，用于检测来自测量线路的电压的电压检测部分14; 二次谐波分量除去部分16，用于去除包含在检测电压中的谐波分量; 相位差检测部分20，用于从消除谐波分量的两个电压信号波形中检测相位差; 频率计算部分21，用于基于由二次谐波分量去除部分去除了谐波分量的电压信号波形，计算由电压检测部分检测的电压的测量线中出现的频率; 以及相位角计算装置22，用于基于由相位差检测部检测的相位差和由频率计算部计算出的频率来计算泄漏电流的相位角。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2013174613A Leak current detection device and method 有权
标题翻译：泄漏电流检测装置及方法
公开(公告)号：JP2013174613A
公开(公告)日：2013-09-05
申请号：JP2013097762
申请日：2013-05-07
申请人： Toyoji Ahei , 豊次阿閉 , Zumoto Yorikazu , 頭本頼数
发明人： AHEI TOYOJI , MIYAZAWA KIYOSHI
IPC分类号： G01R31/02 , G01R27/18
摘要： PROBLEM TO BE SOLVED: To provide a leak current detection device and method for detecting a leak current caused by insulation resistance to ground.SOLUTION: A leak current detection device includes: a current trance sensor assembly 10 for clamping a measuring object electric line and detecting leak current; a voltage detection part 14 for detecting a voltage applied to the measuring object electric line; a phase pulse width measuring part 20 for detecting the phase difference between a signal waveform of the voltage detected by the voltage detection part 14 and a signal waveform of the leak current detected by the current trance sensor assembly 10; a power supply frequency measuring part 21 for measuring a power supply frequency applied to the measuring object electric line on the basis of the signal waveform of the voltage detected by the voltage detection part 14; a phase angle calculation part 22 for calculating a phase angle of the leak current flowing through the measuring object electric line on the basis of the phase difference and the power supply frequency; and a leak current calculation part 27 for calculating a leak current component caused by insulation resistance to ground included in the leak current on the basis of the leak current detected by the current trance sensor assembly 10 and the phase angle.
摘要翻译：要解决的问题：提供一种用于检测由对地面的绝缘电阻引起的漏电流的漏电流检测装置和方法。解决方案：一种泄漏电流检测装置，包括：用于夹紧测量对象电线的电流恍惚传感器组件10，漏电流; 用于检测施加到测量对象电线的电压的电压检测部分14; 用于检测由电压检测部分14检测的电压的信号波形与由当前恍惚传感器组件10检测的泄漏电流的信号波形之间的相位差的相位脉冲宽度测量部分20; 电源频率测量部分21，用于基于由电压检测部分14检测的电压的信号波形来测量施加到测量对象电线的电源频率; 相位角计算部22，用于基于相位差和电源频率计算流过测量对象电线的泄漏电流的相位角; 以及泄漏电流计算部27，用于基于由当前恍惚传感器组件10检测到的泄漏电流和相位角，计算由泄漏电流中包括的漏电流引起的漏电电流分量。

4. 发明专利

JP2010197400A Apparatus and method for detection of leakage current 有权
标题翻译：检测泄漏电流的装置和方法
公开(公告)号：JP2010197400A
公开(公告)日：2010-09-09
申请号：JP2010091731
申请日：2010-04-12
申请人： Toyoji Ahei , Ono Takemi , Zumoto Yorikazu , 大野武美 , 豊次阿閉 , 頭本頼数
发明人： AHEI TOYOJI , MIYAZAWA KIYOSHI
IPC分类号： G01R31/02 , G01R27/18
摘要： PROBLEM TO BE SOLVED: To provide a leakage current detection apparatus and method for detecting only a leakage current Igr caused by insulation resistance to ground. SOLUTION: A leakage current I 0 flowing through an electric line to be measured, of which electrical system is a three phase (R phase, S phase (grounded phase), T phase), three wire system, is detected. A voltage V generated between non-grounded phases (R phase-T phase) of the electric line to be measured is detected. A phase difference is detected from the leakage current I 0 and voltage V. A power supply frequency generated in the electric line to be measured is calculated based on the voltage V. The phase angle θ of the leakage current flowing through the electric line to be measured is calculated based on the phase difference and power supply frequency. A leakage current component Igr caused by the insulation resistance to ground included in the leakage current I 0 flowing through the electric line to be measured is calculated based on the leakage current I 0 and phase angle θ. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种仅检测由对地的绝缘电阻引起的漏电流Igr的漏电流检测装置和方法。
解决方案：流经待测电线的漏电流I 0 其电气系统为三相（R相，S相（接地相），T相），三相线系统被检测到。检测在待测电线的非接地相（R相T相）之间产生的电压V. 根据漏电流I 0 和电压V检测相位差。基于电压V计算待测电线中产生的电源频率。漏电流的相位角θ 基于相位差和电源频率计算流过要测量的电线。基于泄漏电流I 0 计算流过待测电线的漏电流I 0 中由与绝缘电阻相关的漏电流分量Igr 和相位角θ。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2005140532A Device and method for calculating phase angle, device and method for detecting leakage current 审中-公开
标题翻译：用于计算相角的装置和方法，用于检测泄漏电流的装置和方法
公开(公告)号：JP2005140532A
公开(公告)日：2005-06-02
申请号：JP2003374485
申请日：2003-11-04
申请人： Toyoji Ahei , 豊次阿閉
发明人： AHEI TOYOJI
IPC分类号： G01R31/02 , G01R25/00 , G01R27/02
摘要： PROBLEM TO BE SOLVED: To detect the leakage current caused by insulation resistance to the ground.
SOLUTION: The leakage current detection device comprises a leakage current detection part for detecting the leakage current from a measuring wireway; an amplifying part for amplifying the converted voltage from the detected leakage current; a first higher harmonic component eliminating part for eliminating the higher harmonic components contained in the voltage amplified in the amplifier part; a voltage-detecting part for detecting the voltage generating in the measuring wireway; a second higher harmonic component eliminating part for eliminating the higher harmonic component contained in the detected voltage; a phase difference detecting part for detecting the phase difference in the two voltages, in which the higher harmonic components are eliminated; a frequency-calculating part for calculating the frequency generated in the measuring wireway, the voltage of which is detected by the voltage detecting part, based on the voltage signal wave form in which the higher harmonic components are eliminated by the second higher harmonic component eliminating part; and a phase angle calculating means for calculating the phase angle of the leakage current flowing in the measuring wireway, based on the phase angle detected by the phase difference detecting part, and the frequency calculated in the frequency calculating part.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：检测由于对地面的绝缘电阻引起的漏电流。解决方案：漏电流检测装置包括用于检测来自测量线路的漏电流的漏电流检测部分; 放大部分，用于从检测到的漏电流放大转换电压; 用于消除在放大器部分中放大的电压中包含的高次谐波分量的第一高次谐波分量部分; 用于检测测量线路中产生的电压的电压检测部分; 用于消除检测电压中包含的高次谐波分量的第二高次谐波分量消除部分; 相位差检测部，用于检测除去高次谐波成分的两个电压的相位差; 频率计算部分，用于基于通过第二高次谐波分量消除部分消除高次谐波分量的电压信号波形来计算在电压检测部分检测的电压在测量线路中产生的频率 ; 以及相位角计算装置，用于基于由相位差检测部分检测的相位角和在频率计算部分中计算出的频率来计算在测量线路中流动的漏电流的相位角。版权所有（C）2005，JPO＆NCIPI

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