CIRCUIT BREAKER WITH LEAKAGE ALARM

• Main Author: NAGAHATA KAZUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 02.03.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

PROBLEM TO BE SOLVED: To obtain a small and inexpensive configuration of excellent operability and low current consumption, with a function for leaving the electric leakage operation records in the breaker body even after reset operation of leakage alarm output.SOLUTION: A circuit breaker with leakage alarm includes leakage detection means 6 for detecting a leakage current flowing through a main circuit 4 having a switching section 5, a leakage alarm output relay 7 actuated based on a detection signal from the leakage detection means, a leakage alarm display device LED 1 being lighted by actuation of the leakage alarm output relay, a reset switch 9 for resetting the leakage alarm output relay, and a leakage operation record display device LED 2. The leakage operation record display device is lighted by the output from an AND circuit 10 of the reset signal from the reset switch and the actuation signal from the leakage alarm output relay. 【課題】漏電警報出力リセット操作後も遮断器本体に漏電動作履歴を残す機能を、操作性がよく低消費電流で小形で安価な構成を得る。【解決手段】開閉部５を有する主回路４を流れる漏電を検出する漏電検出手段６と、前記漏電検出手段の検出信号に基づいて作動される漏電警報出力リレー７と、この漏電警報出力リレーの作動によって点灯される漏電警報表示装置ＬＥＤ１と、前記漏電警報出力リレーを復帰させるリセットスイッチ９と、漏電動作履歴表示装置ＬＥＤ２を備え、前記リセットスイッチのリセット信号と前記漏電警報出力リレーの動作信号とのＡＮＤ回路１０の出力により前記漏電動作履歴表示装置を点灯させることを特徴としている。【選択図】図１