JPS63149146U - - Google Patents
Info
- Publication number
- JPS63149146U JPS63149146U JP3948187U JP3948187U JPS63149146U JP S63149146 U JPS63149146 U JP S63149146U JP 3948187 U JP3948187 U JP 3948187U JP 3948187 U JP3948187 U JP 3948187U JP S63149146 U JPS63149146 U JP S63149146U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detection circuit
- contact
- earth leakage
- open
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 2
Description
第１図は本考案による補助接点及びテスト動作
検知回路を付加した単３中性線欠相保護付漏電ブ
レーカのブロツク図、第２図は当該ブレーカの作
用を説明するための簡略電気回路図、第３図は当
該ブレーカの制御回路内での信号電圧の正常時の
波形図、第４図は同じく異常時の波形図、第５図
はテスト用押釦を押した場合の信号電圧の波形図
、第６図は当該ブレーカを正接続方式で使用した
ときと逆接続方式で使用したときの電源、負荷及
び引き出し線の関係を示す説明図、第７図は従来
技術の簡略電気回路図である。
１０……漏電検出回路、１１……補助接点、１
３……異常電圧検出回路、１４……スイツチ回路
、１５……テスト用押釦、１７……テスト動作検
知回路、Ｒ２，Ｒ３，Ｒ４，Ｒ５……抵抗、Ｄ１
，Ｄ２……ダイオード、Ｑ１……トランジスタ。
Fig. 1 is a block diagram of an earth leakage breaker with AA neutral line open phase protection which is equipped with an auxiliary contact and a test operation detection circuit according to the present invention, and Fig. 2 is a simplified electrical circuit diagram for explaining the operation of the breaker. Fig. 3 is a waveform diagram of the signal voltage in the control circuit of the breaker when it is normal, Fig. 4 is a waveform diagram when it is abnormal, and Fig. 5 is a waveform diagram of the signal voltage when the test push button is pressed. FIG. 6 is an explanatory diagram showing the relationship between the power supply, load, and lead wires when the breaker is used in the forward connection method and in the reverse connection method, and FIG. 7 is a simplified electrical circuit diagram of the prior art. 10...Earth leakage detection circuit, 11...Auxiliary contact, 1
3... Abnormal voltage detection circuit, 14... Switch circuit, 15... Test push button, 17... Test operation detection circuit, R2, R3, R4, R5... Resistor, D1
, D2...diode, Q1...transistor.
Claims (1)
路と異常電圧検出回路からの異常検出信号により
、引き外しコイルを励磁付勢して主回路接点を開
成せしめる電子式の単３中性線欠相保護付漏電ブ
レーカにおいて、当該ブレーカが地絡事故時に適
正に動作可能の状態にあるか否かを確認するため
に備えられているテスト用押釦回路に主回路接点
と連動する単極双投の制御回路用の補助接点を設
け、主回路接点が閉のときには外部中性線用引き
出し線端子側に閉となり中性線欠相監視回路を形
成せしめ、主回路接点が開のときにはテスト動作
検知回路へ導通する回路側に閉となりテスト用押
釦を押した場合に該テスト動作検知回路から前記
異常電圧検出回路へテスト動作信号を出力して前
記異常電圧検出回路から引き外しコイルを励磁付
勢させる異常信号の出力を停止せしめることを特
徴とする単３中性線欠相保護付漏電ブレーカ。 An electronic AA neutral wire used in single-phase three-wire power distribution lines that excites and energizes the tripping coil to open the main circuit contact using abnormality detection signals from the earth leakage detection circuit and abnormal voltage detection circuit. In an earth leakage breaker with phase loss protection, a single-pole, double-throw button that is connected to the main circuit contact is installed in the test push button circuit that is installed to confirm whether the breaker is in a state where it can operate properly in the event of a ground fault. An auxiliary contact is provided for the control circuit, and when the main circuit contact is closed, it closes on the external neutral lead wire terminal side to form a neutral wire open phase monitoring circuit, and when the main circuit contact is open, it detects test operation. When the circuit side conducting to the circuit is closed and a test push button is pressed, a test operation signal is output from the test operation detection circuit to the abnormal voltage detection circuit, and the abnormal voltage detection circuit excite and energize the tripping coil. An earth leakage breaker with AA neutral wire open phase protection, which is characterized by stopping the output of abnormal signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987039481U JPH066673Y2 (en) | 1987-03-18 | 1987-03-18 | AA leakage breaker with neutral phase protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987039481U JPH066673Y2 (en) | 1987-03-18 | 1987-03-18 | AA leakage breaker with neutral phase protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63149146U true JPS63149146U (en) | 1988-09-30 |
| JPH066673Y2 JPH066673Y2 (en) | 1994-02-16 |
Family
ID=30852687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987039481U Expired - Lifetime JPH066673Y2 (en) | 1987-03-18 | 1987-03-18 | AA leakage breaker with neutral phase protection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066673Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6485522A (en) * | 1987-09-26 | 1989-03-30 | Matsushita Electric Works Ltd | Open-phase breaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471628U (en) * | 1977-10-31 | 1979-05-22 | ||
| JPS54147640U (en) * | 1978-04-06 | 1979-10-13 |
-
1987
- 1987-03-18 JP JP1987039481U patent/JPH066673Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471628U (en) * | 1977-10-31 | 1979-05-22 | ||
| JPS54147640U (en) * | 1978-04-06 | 1979-10-13 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6485522A (en) * | 1987-09-26 | 1989-03-30 | Matsushita Electric Works Ltd | Open-phase breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH066673Y2 (en) | 1994-02-16 |
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