JPH03104038U

JPH03104038U -

Info

Publication number: JPH03104038U
Application number: JP1236390U
Authority: JP
Priority date: 1990-02-09
Filing date: 1990-02-09
Publication date: 1991-10-29

Description

[Brief explanation of drawings]

第１図…本件考案の欠相遮断器の１実施例によ
る回路構成図、第２図…本件考案の応用例による
回路構成図、第３図…従来の正接続用欠相遮断器
の回路構成図、第４図…従来の欠相遮断器の動作
タイムチヤート、第５図…従来の逆接続用欠相遮
断器の回路構成図、第６図…従来の正接続用欠相
遮断器を逆接続使用した時の不具合点を明記した
構成図。１……欠相遮断器、２……主接点、３……引き
外しコイル、４……検出線、９……電源用整流器
、５……整流用ダイオード、６……整流用ダイオ
ード、７……整流用ダイオード、１８……検知器
電源用コンデンサ、１９……整流用ダイオード、
５０……検知器、６０……検知器回路のグランド
、８０……主接点と連動して開閉する接点、１０
０……柱上トランス、１１０……アース（大地）
、１２０……人。 Figure 1...Circuit configuration diagram according to one embodiment of the open phase breaker of the present invention, Figure 2...Circuit configuration diagram according to an application example of the present invention, Figure 3...Circuit configuration of a conventional open phase circuit breaker for positive connection. Figure 4...Operating time chart of a conventional open-phase circuit breaker, Figure 5...Circuit diagram of a conventional open-phase circuit breaker for reverse connection, Figure 6...Reverse operation of a conventional open-phase circuit breaker for forward connection. A configuration diagram that clearly shows the problems when using the connection. 1...Open phase breaker, 2...Main contact, 3...Trip coil, 4...Detection line, 9...Power supply rectifier, 5...Rectifier diode, 6...Rectifier diode, 7... ... rectifier diode, 18 ... detector power supply capacitor, 19 ... rectifier diode,
50...Detector, 60...Ground of the detector circuit, 80...Contact that opens and closes in conjunction with the main contact, 10
0...Pole transformer, 110...Earth (earth)
, 120...people.

Claims

[Claims for Utility Model Registration] 1. Detecting phase loss due to abnormal voltage in the single-phase 3-wire power supply line, turning on the switch means with the phase loss detection signal, energizing the tripping coil of the main contact, and tripping. In an open-phase circuit breaker in which the main contact inserted into the electrical circuit is opened by excitation of the coil, and the detection wire connected to the N-phase power supply line is externally wired from the open-phase detecting means, A diode anode is placed on the detection line that detects the overvoltage applied to the N phase, and a resistor that determines the overvoltage level is placed on the cathode, as well as between the rectified terminal of the overvoltage detector power supply rectifier and the ground of the detector circuit. An open-phase circuit breaker characterized by having a contact that opens and closes in conjunction with the main contact. 2 If the above power supply rectifier is configured with half-wave rectification, the first
The anode of the diode and the cathode of the diode are connected to the constant voltage circuit terminal of the overvoltage detector, and the second
The cathode of the diode is connected to the anode of the second diode, and the cathode of the third diode is connected to the other end of the voltage line. The anode of the fourth diode is placed on the detection line that detects the overvoltage level, and the resistor that determines the overvoltage level is placed on the cathode, and the main contact is placed between the connection point of the third diode and the fourth diode and the ground of the detector circuit. The open-phase circuit breaker according to claim 1, which is characterized by being provided with a contact that opens and closes in conjunction with the circuit breaker.