LEAKAGE TRIPPING DEVICE AND LEAKAGE INTERRUPTER
To provide a leakage tripping device capable of coping with various power supply voltage without increasing size of a tripping coil.SOLUTION: A leakage tripping device 60 comprises: a tripping device 4 containing a tripping coil and a tripping mechanism 4c; and a leakage detection part that detects...
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Main Authors | , |
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Format | Patent |
Language | English Japanese |
Published |
03.04.2024
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a leakage tripping device capable of coping with various power supply voltage without increasing size of a tripping coil.SOLUTION: A leakage tripping device 60 comprises: a tripping device 4 containing a tripping coil and a tripping mechanism 4c; and a leakage detection part that detects a leakage of an AC electric path 1, and energizes the tripping coil of the tripping device 4. The tripping coil comprises: a first coil 4a; and a second coil 4b that is serially connected to the first coil 4a, and of which a wire diameter is smaller than that of the first coil 4a. The leakage tripping device 60 comprises: a relay 56 that includes a contact point 56a; and a relay driving circuit. Therein, the relay driving circuit is configured to: detect a voltage of the AC electric path 1; when the voltage detected is larger than a first voltage, open a path of the contact point 56a so as to enable energizing the first coil 4a and the second coil 4b; when the voltage detected is smaller than the first voltage, close the path of the contact point 56a so as to enable energizing the first coil 4a.SELECTED DRAWING: Figure 1
【課題】引外しコイルのサイズを大きくすることなく、幅広い電源電圧に対応可能な漏電引外し装置を得ること。【解決手段】漏電引外し装置60は、引外しコイルと、引外し機構4cと、を有する引外し装置4と、交流電路1の漏電を検出して引外し装置4の引外しコイルを通電する漏電検出部と、を備える。引外しコイルは、第1コイル4aと、第1コイル4aに直列接続され、第1コイル4aより線径が小さな第2コイル4bと、を備える。漏電引外し装置60は、接点56aを有するリレー56と、交流電路1の電圧を検出し、検出された電圧が第1電圧より大きいときは接点56aを開路して第1コイル4aおよび第2コイル4bを通電可能とし、検出された電圧が第1電圧より小さいときは接点56aを閉路して第1コイル4aを通電可能とするリレー駆動回路と、を備える。【選択図】図1 |
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Bibliography: | Application Number: JP20220151073 |