ELECTRIC LEAKAGE DETECTOR

To suppress an increase in the mounting area or mounting volume for the component needed for an electric leakage detection function.SOLUTION: Provided is an electric leakage detector provided in a load device which is supplied with AC power via a prescribed connecting wire through its pair of power...

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1. Verfasser: NIINUMA TAKASHI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To suppress an increase in the mounting area or mounting volume for the component needed for an electric leakage detection function.SOLUTION: Provided is an electric leakage detector provided in a load device which is supplied with AC power via a prescribed connecting wire through its pair of power supply terminals, comprising: a pair of circuit elements each provided between the pair of power supply terminals and a ground point and having prescribed impedance; a current detection element for detecting a leakage current flowing between the pair of circuit elements and the ground point when the connecting wire is shorted to ground; and an electric leakage determination unit connected to the current detection element, for determining the occurrence of electric leakage on the basis of the magnitude of the leakage current.SELECTED DRAWING: Figure 2 【課題】漏電検出機能に要する部品の実装面積あるいは実装体積の増加を抑制する。【解決手段】交流電力が所定の接続線を介して一対の電源端子に給電される負荷装置に備えられる漏電検出装置であって、一対の電源端子と接地点との間にそれぞれ設けられ、所定のインピーダンスを有する一対の回路素子と、接続線が地絡した際に一対の回路素子と接地点との間に流れる漏電電流を検出する電流検出素子と、該電流検出素子に接続され、漏電電流の大きさに基づいて漏電の発生を判断する漏電判定部とを備える。【選択図】図2