发明名称 |
METHOD FOR REMOVING INFLUENCE OF DISTORTION OF POWER SUPPLY VOLTAGE ON CURRENT CHARACTERISTIC |
摘要 |
PROBLEM TO BE SOLVED: To determine a sort and an operation state of an electric apparatus in using from a current waveform independently of a sort of a power supply and a degree of power supply voltage distortion.SOLUTION: A method for measuring a waveform of a current flowing in a distribution line of a power consumer in order remove influence of power supply voltage distortion on characteristics of the current includes: a step for recording the waveform of the current flowing in the distribution line of the power consumer; a step for recording a waveform of voltage applied to the distribution line of the power consumer; a step for converting the recorded current waveform and the recorded voltage waveform into frequency characteristic areas; and a step for acquiring a current waveform which is corrected by multiplying the current waveform converted into the frequency characteristic area by an inverse of the voltage waveform converted into the frequency characteristic area. |
申请公布号 |
JP2014206417(A) |
申请公布日期 |
2014.10.30 |
申请号 |
JP20130083169 |
申请日期 |
2013.04.11 |
申请人 |
NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
KOZAI MASAKI;TAKATANI KAZUHIRO;SUZUKI YASUNAO;ISHIYAMA FUMIHIKO |
分类号 |
G01R21/133;G01R21/00;H02J13/00 |
主分类号 |
G01R21/133 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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