JPH02239533A - Breaker for wiring with earth leakage alarming function - Google Patents

Breaker for wiring with earth leakage alarming function

Info

Publication number
JPH02239533A
JPH02239533A JP5853089A JP5853089A JPH02239533A JP H02239533 A JPH02239533 A JP H02239533A JP 5853089 A JP5853089 A JP 5853089A JP 5853089 A JP5853089 A JP 5853089A JP H02239533 A JPH02239533 A JP H02239533A
Authority
JP
Japan
Prior art keywords
earth leakage
relay
breaker
zero
circuit breaker
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.)
Pending
Application number
JP5853089A
Other languages
Japanese (ja)
Inventor
Shigeru Matsumoto
茂 松本
Eiichi Sato
栄一 佐藤
Toshihiro Akiyama
秋山 俊弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5853089A priority Critical patent/JPH02239533A/en
Priority to KR1019900000004A priority patent/KR900015203A/en
Priority to ZA901738A priority patent/ZA901738B/en
Priority to EP19900104459 priority patent/EP0386768A3/en
Publication of JPH02239533A publication Critical patent/JPH02239533A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To save space for a board, constructing the whole in small size, and save labor for mounting work by incorporating a zero-phase current transformer and an earth leak relay in the case of a breaker for wiring. CONSTITUTION:When earth leakage occurs in a power distributing path, a zero-phase transformer 9 senses the leak current, and the signal obtained is amplified by an amplifier 11 to drive a leak relay 10. Thus an alarm is raised, and meantime a leak current display member 13 is actuated. If a zero-phase current transformer 9 and a leak relay 10 are incorporated in a breaker case 5, only a breaker for wiring 4 must be installed on a board. As the leak relay 10 is connected with a main circuit through a control power line line 12, it is not required to provide any separate control power supply for the relay 10.

Description

【発明の詳細な説明】[Detailed description of the invention]

[産業上の利用分野1 この発明は、配線用遮断器の基本機能である過負荷・短
絡保護機能に加えて漏電警報機能を備えた漏電警報機能
付き配線用遮断器に関するものである。 {従来の技術] 配電路において、漏電が発生しでも電源をおとしたくな
い重要回路では、第4図に示すように配線用遮断器(1
)と零相変流器(2)と漏電リレー(3)とを組み合わ
せて使用している.したがって、電路の漏電が常時監視
でき、漏電発生時には電路を遮断せずに警報のみ出す.
勿論、配線用遮断器(1)は基本機能である過負荷・短
絡保護機能を有し,ているので、過負荷・短絡時には電
路が遮断される,
[Industrial Application Field 1] The present invention relates to a molded case circuit breaker with an earth leakage alarm function, which has an earth leakage alarm function in addition to the overload/short circuit protection function, which is the basic function of a molded case circuit breaker. {Prior art] In important circuits in power distribution lines where the power supply should not be interrupted even if a leak occurs, molded circuit breakers (1) are used as shown in Figure 4.
), a zero-phase current transformer (2), and an earth leakage relay (3) are used in combination. Therefore, current leakage in the electrical circuit can be constantly monitored, and when a current leakage occurs, only an alarm is issued without interrupting the electrical circuit.
Of course, the molded circuit breaker (1) has the basic function of overload/short circuit protection, so the electrical circuit will be cut off in the event of an overload/short circuit.

【発明が解決しようとする課題】[Problem to be solved by the invention]

上記のような従来の漏電警報機能付き配線用遮断器では
、配線用遮断器(1)の他に零相変流器(2)と漏電リ
レー(3)とを別個に配置しなければならないと共にこ
れらの配線も必要となるので盤スペースが大となって小
形化が図れないし、盤への取付作業に手間が掛かり、さ
らには漏電リレー(3)に制御電源が必要になるという
問題点があった。 この発明はかかる問題点を解消するためになされたもの
で、零相変流器および漏電リレーを配線用遮断器の遮断
器ケースに内蔵することにより盤の省スペース化による
小形化および盤への取付作業の省力化が図れると共に、
漏電リレーの制御電源が不要となる漏電警報機能付き配
線用遮断器を得ることを目的とする。 [課題を解決するための手段] 上記目的を達成するために、この発明に係る漏電警報機
能付き配線用遮断器は、配線用遮断器の遮断器ケースに
零相変流器および漏電リレーを内蔵したものである。 [作用] この発明においては、遮断器ケースに零相変流器および
漏電リレーを内蔵したので、配線用遮断器分の盤スペー
スのみですみ、盤への取付も遮断器のみですみ、さらに
別個の制御電源が不要どなる。 [実施例] この発明の一実施例を第1図〜第3図について説明する
.第1図は外観斜視図、第2図はカバーを外した概略正
面図、第3図はその回路図である。図において、(4)
は配線用遮断器で、図示省略してい15が過負荷・・短
絡保護磯能を備ぶている(5)は配線用遮断器(4)の
′a.断γケースτ”、べ・−ス(5a)とカバー(5
b)とからなー)でいる。(6)は遮断歇ケース(!;
)の正面に突出する手動操作ハンドル、(7),(8)
は遮断器ケース(5)の両端側にそれぞわ.配霞される
負荷側・電源側端子部、(9)は零相変流器、(10)
は漏電リレー、(1))は零相変流器(9)と漏電リレ
ー(10)との間に設けた増幅部、(12)は漏電リレ
ー(10)の制御電源線、(13)は零相変流器(9)
の位置に設けた漏電表示部材で、漏電リレー(i o)
が動作したときに例^ば電気式表示部材(ランプ)では
点灯し機械式表示部材(ボタン)ではカバー (5b)
表面に突出するようになっている.(14)はりセツl
・ボタンで、漏電表示部材(l3)のリセット用に設け
られている,(15)は漏電リレー(10)の位着【こ
設けたテストボタンで、模擬的に漏電動作の確認をする
ときに使用1”る,(16)は遮断器ケース(5)から
外部に導出した漏電警報リード線である。 配電路に漏電が発生すると,零相変流器(9)が漏電電
流を検出し、この検出信号は増幅部(1))により増幅
され、漏電リレー(10)を駆動させて警報を出す。同
時に漏電表示部材(13)が動作する。前記警報は回路
内部で電気的にラッヂされているので、リセットボタン
(14)を押すか、主回路の電源がなくなるまで保持さ
れる。 このように遮断器ケース(5)に零相変流器(9)およ
び漏電リレー(lO)を内蔵しておくと、盤には配線用
遮断器(4)を取付けるだけでよい。また漏電リレー(
10)は制御電源線(12)により主回路に接続されて
いるので、漏電リレー(10)用の別個の制御電源が不
要となる.[発明の効果} 以上のように、この発明によれば零相変流器および漏電
リレーを配線用遮断器の遮断器ケースに内蔵したので盤
の省スペース化による小形化および盤への取付作業の省
力化が図れると共に、漏電リレーの制御電源が不要にな
るという効果が得られる.
In the conventional molded circuit breaker with an earth leakage alarm function as described above, in addition to the molded case breaker (1), a zero-phase current transformer (2) and an earth leakage relay (3) must be separately arranged. Since these wirings are also required, the panel space becomes large, making it difficult to achieve miniaturization.Moreover, there are problems in that the installation work to the panel is time-consuming, and the earth leakage relay (3) requires a control power source. Ta. This invention was made to solve this problem, and by incorporating a zero-phase current transformer and an earth leakage relay into the circuit breaker case of a molded circuit breaker, it is possible to reduce the size and size of the panel by saving space. In addition to saving labor in installation work,
The object of the present invention is to obtain a molded circuit breaker with an earth leakage alarm function that eliminates the need for a control power source for an earth leakage relay. [Means for Solving the Problems] In order to achieve the above object, a molded circuit breaker with an earth leakage alarm function according to the present invention has a zero-phase current transformer and an earth leakage relay built into the circuit breaker case of the molded circuit breaker. This is what I did. [Function] In this invention, since the zero-phase current transformer and earth leakage relay are built into the circuit breaker case, only the panel space required for the molded circuit breaker is required, and only the circuit breaker can be mounted on the panel. No control power is required. [Example] An example of the present invention will be explained with reference to FIGS. 1 to 3. FIG. 1 is an external perspective view, FIG. 2 is a schematic front view with the cover removed, and FIG. 3 is a circuit diagram thereof. In the figure, (4)
15 (not shown) is a molded case circuit breaker, and (5) is equipped with an overload/short circuit protection function. Cut γ case τ”, base (5a) and cover (5
b) and Karana). (6) is an intermittent case (!;
) manual operation handle protruding from the front, (7), (8)
are located on both ends of the circuit breaker case (5). Load side/power supply side terminals to be distributed, (9) is zero-phase current transformer, (10)
is an earth leakage relay, (1)) is an amplifier installed between the zero-phase current transformer (9) and the earth leakage relay (10), (12) is the control power line for the earth leakage relay (10), and (13) is the earth leakage relay (10). Zero-phase current transformer (9)
The earth leakage display member installed at the position of the earth leakage relay (io)
For example, an electric display member (lamp) lights up when the button operates, and a mechanical display member (button) lights up (5b).
It protrudes from the surface. (14) Harisatsu l
・The button (15) is provided to reset the earth leakage display member (l3).The button (15) is the position of the earth leakage relay (10). (16) is the leakage alarm lead wire led out from the circuit breaker case (5). When a leakage occurs in the distribution line, the zero-phase current transformer (9) detects the leakage current, This detection signal is amplified by the amplifier (1)) and drives the earth leakage relay (10) to issue an alarm.At the same time, the earth leakage display member (13) operates.The alarm is electrically latched inside the circuit. The circuit breaker case (5) has a built-in zero-phase current transformer (9) and an earth leakage relay (IO), so it is held until the reset button (14) is pressed or the main circuit power is turned off. If you keep it in place, you only need to install the circuit breaker (4) on the panel.Also, install the earth leakage relay (
10) is connected to the main circuit by the control power line (12), so there is no need for a separate control power source for the earth leakage relay (10). [Effects of the Invention] As described above, according to the present invention, a zero-phase current transformer and an earth leakage relay are built into the circuit breaker case of a molded circuit breaker, thereby reducing the size of the panel by saving space and reducing the installation work to the panel. This has the effect of saving labor and eliminating the need for a control power source for the earth leakage relay.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明の一実施例を示す外観斜視図、第2図
はカバーを外した概略正面図、第3図はその回路図、第
4図は従来のものを示す外観斜−視図である. 図において、(4)は配線用遮断器、(5)は遮断器ケ
ース、(9)は零相変流器、(10)は漏電リレーを示
す. なお、図中同一符号は同一または相当部分を示す。 代理人 弁理士  大  岩  増  雄第 [一′[ 第 図
Fig. 1 is an external perspective view showing an embodiment of the present invention, Fig. 2 is a schematic front view with the cover removed, Fig. 3 is its circuit diagram, and Fig. 4 is an external perspective view showing a conventional one. It is. In the figure, (4) indicates a molded circuit breaker, (5) indicates a circuit breaker case, (9) indicates a zero-phase current transformer, and (10) indicates an earth leakage relay. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Patent Attorney Masuo Oiwa [1'[ Figure

Claims (1)

【特許請求の範囲】[Claims] (1)配線用遮断器に零相変流器および漏電リレーを組
み合わせて、前記配線用遮断器の基本機能である過負荷
・短絡保護機能に加えて漏電警報機能を備えた漏電警報
機能付き配線用遮断器において、 前記配線用遮断器の遮断器ケースに、前記零相変流器お
よび漏電リレーを内蔵したことを特徴とする漏電警報機
能付き配線用遮断器。
(1) Wiring with an earth leakage alarm function that combines a molded case breaker with a zero-phase current transformer and an earth leakage relay, and has an earth leakage alarm function in addition to the overload and short circuit protection functions that are the basic functions of the molded case circuit breaker. A molded circuit breaker with an earth leakage alarm function, characterized in that the zero-phase current transformer and earth leakage relay are built into a circuit breaker case of the molded circuit breaker.
JP5853089A 1989-03-10 1989-03-10 Breaker for wiring with earth leakage alarming function Pending JPH02239533A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5853089A JPH02239533A (en) 1989-03-10 1989-03-10 Breaker for wiring with earth leakage alarming function
KR1019900000004A KR900015203A (en) 1989-03-10 1990-01-03 Circuit Breaker with Earth Leakage Alarm Function
ZA901738A ZA901738B (en) 1989-03-10 1990-03-07 Circuit device having circuit breaking and leakage current detecting functions
EP19900104459 EP0386768A3 (en) 1989-03-10 1990-03-08 Circuit device having circuit breaking and leakage current detecting functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5853089A JPH02239533A (en) 1989-03-10 1989-03-10 Breaker for wiring with earth leakage alarming function

Publications (1)

Publication Number Publication Date
JPH02239533A true JPH02239533A (en) 1990-09-21

Family

ID=13086986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5853089A Pending JPH02239533A (en) 1989-03-10 1989-03-10 Breaker for wiring with earth leakage alarming function

Country Status (2)

Country Link
JP (1) JPH02239533A (en)
ZA (1) ZA901738B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172293A (en) * 1990-01-12 1992-12-15 Mitsubishi Denki Kabushiki Kaisha Circuit breaker with leakage current detecting functions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172293A (en) * 1990-01-12 1992-12-15 Mitsubishi Denki Kabushiki Kaisha Circuit breaker with leakage current detecting functions

Also Published As

Publication number Publication date
ZA901738B (en) 1990-12-28

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