PROBLEM TO BE SOLVED: To provide an electric leakage detection device that can suppress wrong detection of electric leakages.SOLUTION: A processing unit 11 is configured to detect whether an electric leakage takes places on the basis of an AD conversion value in which an output voltage output from a hard filter 70 is Analog-to-Digital converted by an A/D input port 12; count an edge of an output voltage detected by a digital input port 13 to determine whether noise overlaps on the output voltage on the basis of whether a count value counted within prescribed time reaches a preliminarily set noise determination threshold; and when the count value reaches the noise determination threshold, determine that the noise overlaps on the output voltage to prohibit detection of the electric leakage based on the AD conversion value.SELECTED DRAWING: Figure 1

    【課題】漏電の誤検出を抑制できる漏電検出装置を提供すること。【解決手段】処理部11は、ハードフィルタ70から出力された出力電圧をA/D入力ポート12によってAD変換されたAD変換値に基づいて漏電しているか否かを検出する。また、処理部11は、デジタル入力ポート13で検出された出力電圧のエッジをカウントし、所定時間内にカウントしたカウント値が予め設定されたノイズ判定閾値に達したか否かによって出力電圧にノイズが重畳しているか否かを判定する。そして、処理部11は、カウント値がノイズ判定閾値に達した場合、出力電圧にノイズが重畳していると判定してAD変換値に基づいた漏電の検出を禁止する。【選択図】図1


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    Titel :

    ELECTRIC LEAKAGE DETECTION DEVICE


    Weitere Titelangaben:

    漏電検出装置


    Beteiligte:
    KOBAYASHI HIROKI (Autor:in) / KITO YUJI (Autor:in) / MIZOGUCHI HAYATO (Autor:in)

    Erscheinungsdatum :

    2016-12-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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