JP5484314B2 - Earth leakage breaker - Google Patents

Earth leakage breaker Download PDF

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JP5484314B2
JP5484314B2 JP2010292349A JP2010292349A JP5484314B2 JP 5484314 B2 JP5484314 B2 JP 5484314B2 JP 2010292349 A JP2010292349 A JP 2010292349A JP 2010292349 A JP2010292349 A JP 2010292349A JP 5484314 B2 JP5484314 B2 JP 5484314B2
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earth leakage
circuit
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leakage
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JP2012142106A (en
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拓樹 益子
裕輔 清水
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Hitachi Industrial Equipment Systems Co Ltd
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Description

本発明は、三相漏電遮断器に関し、特に逆接続可能な三相漏電遮断器に関する。   The present invention relates to a three-phase circuit breaker, and more particularly to a three-phase circuit breaker that can be reversely connected.

最近、太陽光発電設備を備えた住宅が増加している。この太陽光発電システムは、安全上漏電遮断器が設置されるが、一般に漏電遮断器は、地絡を検出すると、トリップコイルに電流が流れ、電路を遮断する。そして、電路は遮断され、トリップコイルには電流は流れなくなる。しかし、漏電遮断器の負荷側に太陽光発電の設備が接続されていると、電路が遮断され、開放されている状態であっても太陽光発電側からトリップコイルに電流が流れてトリップコイルを焼損する恐れがある。   Recently, the number of houses equipped with solar power generation facilities has increased. In this solar power generation system, an earth leakage breaker is installed for safety. Generally, when the earth leakage breaker detects a ground fault, an electric current flows through the trip coil to interrupt the electric circuit. Then, the electric circuit is interrupted and no current flows through the trip coil. However, if a photovoltaic power generation facility is connected to the load side of the earth leakage breaker, the current will flow from the photovoltaic power generation side to the trip coil even if the circuit is interrupted and opened. Risk of burning.

これを解決するため、逆接続可能形漏電遮断器があり、漏電遮断器が動作したときトリップ電流も遮断させる機能を持たせた。   In order to solve this problem, there was a reverse connection type earth leakage breaker, which provided a function to cut off the trip current when the earth leakage breaker was activated.

特許文献１（特開２００９−７０６２９号公報）は、逆接続された場合でも故障しないように、開閉部の開動作に連動して開動作するリレー接点をトリップコイルに直列に設けたことが開示されている。   Patent Document 1 (Japanese Patent Application Laid-Open No. 2009-70629) discloses that a relay contact that opens in conjunction with an opening operation of an opening / closing portion is provided in series with a trip coil so as not to fail even when reversely connected. Has been.

また、特許文献２（特開２００９−５９６０７）には、逆接続された場合も焼損しないように、電路の異なる相からトリップコイルへ駆動電流を供給するサイリスタを有し、漏電が発生したらサイリスタを同時にオンさせてトリップコイルを駆動することが開示されている。   Patent Document 2 (Japanese Patent Application Laid-Open No. 2009-59607) has a thyristor that supplies a drive current to a trip coil from a different phase of an electric circuit so that it does not burn out even when reversely connected. It is disclosed that the trip coil is driven by turning on simultaneously.

特開２００９−７０６２９JP2009-70629A 特開２００９−５９６０７JP 2009-59607 A

代表的な太陽光発電システムの回路を図５に示す。   A circuit of a typical photovoltaic power generation system is shown in FIG.

図５において、５７１は商用電源、５７２は太陽光発電システム、５７３は商用電源を使用した回路の主幹漏電器、５７４は太陽光発電側システムの保護遮断器、５７５、５７６，５７７は商用電源や太陽光発電システムから電力を供給され、負荷に接続される回路での分岐遮断器である。   In FIG. 5, 571 is a commercial power source, 572 is a photovoltaic power generation system, 573 is a main circuit leakage circuit of a circuit using the commercial power source, 574 is a protective circuit breaker of the photovoltaic power generation side system, 575, 576 and 577 are commercial power sources and A branch circuit breaker in a circuit that is supplied with power from a photovoltaic power generation system and connected to a load.

図５は、商用電源（電力会社からの電力供給ライン）ライン５７１と太陽光発電システムライン５７２が接続した連係システムで構成された回路である。   FIG. 5 is a circuit configured by a linkage system in which a commercial power supply (power supply line from an electric power company) line 571 and a photovoltaic power generation system line 572 are connected.

主幹遮断器５７３及び太陽光発電側システム保護遮断器５７４に使用される漏電遮断器は、漏電遮断器の主回路が開路状態においても、漏電遮断器負荷側に太陽光発電システムからの電圧印加されるために逆接続可能形の漏電遮断器の設置が必要となる。   The earth leakage circuit breaker used for the main circuit breaker 573 and the photovoltaic power generation side system protection circuit breaker 574 is applied with the voltage from the photovoltaic power generation system on the earth leakage circuit breaker load side even when the main circuit of the earth leakage breaker is in an open circuit state. Therefore, it is necessary to install an earth leakage breaker that can be connected in reverse.

次に漏電遮断器について説明する。   Next, the earth leakage breaker will be described.

ＪＩＳ Ｃ ８２０１−２−２又はＪＩＳ Ｃ ８３７１に規定されるような漏電遮断器の代表的な内部構成を図６に示す。   FIG. 6 shows a typical internal configuration of an earth leakage breaker as defined in JIS C 8201-2-2 or JIS C 8371.

図６において、漏電遮断器は、主回路接点２０３、漏電検出回路２１０と漏電引外し装置２０９から構成されており、通常、漏電引外し装置２０９はソレノイドコイルを用いた電磁石装置等から構成されている。電磁石装置は主回路に接続された電源ラインから供給される電力によって駆動されるものとなっている。電磁石装置を安価に製造できる構造とするために、通常、電磁石装置は短時間定格の仕様（短時間の動作のみ性能が保証されるもの。長時間の使用では故障する恐れのあるもの）のものが使用されている。一般に漏電引外し装置の電源は主回路接点２０３を介した負荷側から供給されるようになっており、漏電発生時や漏電テスト動作時の漏電引外し装置が動作した場合は、漏電引外し装置の動作後の極めて短い時間の間（０．１秒以下）に、主回路接点２０３も開路されるために漏電引外し装置２０９に長時間電圧が印加されることが無い。そのため特に接点を設けなくとも、漏電引外し装置２０９は短時間定格の仕様でも充分に使用に耐えられるものとなっている。   In FIG. 6, the earth leakage breaker is composed of a main circuit contact 203, an earth leakage detection circuit 210, and an earth leakage trip device 209, and the earth leakage trip device 209 is usually composed of an electromagnet device using a solenoid coil. Yes. The electromagnet device is driven by electric power supplied from a power supply line connected to the main circuit. In order to make an electromagnet device to be manufactured at a low cost, the electromagnet device is usually of a short-time rated specification (one whose performance is guaranteed only for a short time operation, which may break down if used for a long time). Is used. In general, the power of the earth leakage trip device is supplied from the load side via the main circuit contact 203, and when the earth leakage trip device is activated at the time of occurrence of the earth leakage or the earth leakage test operation, the earth leakage trip device During an extremely short time (less than 0.1 second) after the above operation, the main circuit contact 203 is also opened, so that no voltage is applied to the leakage trip device 209 for a long time. Therefore, even if a contact is not particularly provided, the earth leakage trip device 209 can sufficiently withstand use even with a short-time rated specification.

しかし、図７に漏電遮断器負荷側から電圧印加された状態を示すが、逆接続可能型漏電遮断器の場合は、漏電遮断器の負荷側から常時電圧印加されるため、漏電発生時や漏電テスト動作時に漏電引外し装置が動作して主回路が開状態となっても、漏電引外し装置２０９には連続的に電圧が印加され短時間定格仕様の漏電引外し装置では故障（焼損）に至る恐れがある。 However, Fig. 7 shows a state in which voltage is applied from the load side of the earth leakage breaker. In the case of a reverse connection type earth leakage breaker, voltage is always applied from the load side of the earth leakage breaker. Even if the earth leakage trip device operates during the test operation and the main circuit is open, a voltage is continuously applied to the earth leakage trip device 209, causing a failure (burnout) in the earth leakage trip device with short-time rated specifications. There is a fear.

逆接続時の故障（焼損）防止を考慮した漏電遮断器の構成を図８に示す。通常、逆接続可能型漏電遮断器の場合、漏電引外し装置２０９部分に主回路接点２０３と連動又は漏電引外し装置の動作と連動した逆接続用補助接点２１５を設置し、漏電遮断器が動作しても漏電引外し装置２０９に連続的に電圧が印加しない構造となっている。前記理由により逆接続可能型漏電遮断器は、逆接続可能型でない漏電遮断器と比較して構造が複雑となり、かつコストも高くなってしまう欠点があった。   FIG. 8 shows the configuration of the earth leakage breaker considering the prevention of failure (burnout) during reverse connection. Normally, in the case of a reverse connection type earth leakage breaker, the earth leakage breaker 209 is provided with an auxiliary contact 215 for reverse connection that is linked to the main circuit contact 203 or linked to the operation of the earth leakage trip device. Even in this case, no voltage is continuously applied to the leakage trip device 209. For the reasons described above, the reverse connection type earth leakage breaker has a drawback that the structure is complicated and the cost is increased as compared with the non-reverse connection type earth leakage breaker.

本発明の目的は、漏電遮断器を簡単な構造で、かつ低コストで構成できる逆接続可能形漏電遮断器を提供することにある。   An object of the present invention is to provide a reverse-connectable type earth leakage breaker that can be configured with a simple structure and low cost.

本発明は、上記目的を達成するために、主回路を開閉するための主回路接点と、該主回路接点を開閉するための開閉機構部と、漏電発生時に主回路を開路させる漏電引外し装置と、該漏電引外し装置を駆動及び漏電電流を検出する漏電検出回路を備えた漏電遮断器において、前記漏電引外し装置を駆動する前記漏電検出回路の電源ラインが、内部付属装置収納部にて接続線又は逆接続用補助接点を容易に取り外し交換可能とし電気的に接続したことを特徴とする。 To achieve the above object, the present invention provides a main circuit contact for opening and closing a main circuit, an opening / closing mechanism for opening and closing the main circuit contact, and a leakage trip device for opening the main circuit when a leakage occurs. And an earth leakage breaker having an earth leakage detection circuit for driving the earth leakage trip device and detecting an earth leakage current, wherein a power supply line of the earth leakage detection circuit for driving the earth leakage trip device is connected to an internal accessory device storage section. The connection line or the auxiliary contact for reverse connection can be easily removed and replaced, and is electrically connected.

また、上記漏電遮断器において、内部付属装置である補助接点（ＡＵＸ）のa接点ラインと、前記漏電検出回路及び漏電引外し装置の電源ライン接続部が、前記内部付属装置を取付けたときに係合し、前記主回路と連動して開閉する漏電検出回路及び漏電引外し装置の電源ライン回路を形成することを特徴とする。 In the above leakage breaker, the a contact line of the auxiliary contact (AUX) which is an internal accessory device, and the power line connection portion of the leakage detection circuit and the leakage trip device are connected when the internal accessory device is attached. In combination, a leakage detection circuit that opens and closes in conjunction with the main circuit and a power supply line circuit of the leakage trip device are formed.

さらに、上記漏電遮断器において、前記内部付属装置収納部に、外部及びユーザー側にて補助接点（ＡＵＸ）の内部付属装置をワンタッチで取付け可能な構造としたことを特徴とする。
Furthermore, the above-mentioned earth leakage breaker is characterized in that the internal auxiliary device of the auxiliary contact (AUX) can be attached to the internal auxiliary device storage portion with one touch on the outside and the user side.

本発明により、主回路接点の開閉と同期する補助接点(ＡＵＸ)を取付けるだけで、簡単に逆接続可能型漏電遮断器を提供することができる。また、ベースとなる漏電遮断器には漏電検出・引外し回路の電源ラインに主回路と同期して開閉する接点を設ける必要がなく、安価でかつ必要に応じて逆接続可能型漏電遮断器を提供できるものである。   According to the present invention, it is possible to provide an earth leakage circuit breaker that can be easily reversely connected by simply attaching an auxiliary contact (AUX) synchronized with the opening and closing of the main circuit contact. In addition, it is not necessary to provide a contact point that opens and closes in synchronization with the main circuit on the power supply line of the leakage detection / trip circuit, and the earth leakage breaker that is inexpensive and can be connected reversely if necessary. It can be provided.

本発明の漏電遮断器の構造を示す断面図及び上面図である。It is sectional drawing and the top view which show the structure of the earth-leakage circuit breaker of this invention. 本発明の漏電遮断器の内部構成を示す模式図である。It is a schematic diagram which shows the internal structure of the earth-leakage circuit breaker of this invention. 本発明の漏電遮断器の内部構成を示す模式図である。It is a schematic diagram which shows the internal structure of the earth-leakage circuit breaker of this invention. 本発明の構成を示す模式図である。It is a schematic diagram which shows the structure of this invention. 代表的な太陽光発電システムを表す回路図である。It is a circuit diagram showing a typical photovoltaic power generation system. 一般的な漏電遮断器の内部構成を示す模式図である。It is a schematic diagram which shows the internal structure of a general earth-leakage circuit breaker. 従来の漏電遮断器を太陽光発電システムに用いた場合の負荷側から電圧を印加された状態を示す図である。It is a figure which shows the state in which the voltage was applied from the load side at the time of using the conventional earth-leakage circuit breaker for a photovoltaic power generation system. 逆接続可能型漏電遮断器に負荷側から電圧を印加された状態を示す図である。It is a figure which shows the state in which the voltage was applied to the reverse connection possible type earth leakage circuit breaker from the load side.

以下、本発明を図を用いて説明する。   Hereinafter, the present invention will be described with reference to the drawings.

図１に本発明の漏電遮断器の構造を示す。   FIG. 1 shows the structure of an earth leakage circuit breaker according to the present invention.

図１において、１００は漏電遮断器、１１１は本体ケース、１１２は本体カバー、１１３は補助カバー、１０２は固定接点、１０３は固定接点台、１０４は可動接点、１０５は可動接点台、１０１は電源側端子、１０７は負荷側端子、１２０はバイメタル、１２１はヒータ、１２２は導体、１０９は漏電引き外し装置、１１０は漏電検出回路、１１４は付属装置収納部である。   In FIG. 1, 100 is an earth leakage circuit breaker, 111 is a main body case, 112 is a main body cover, 113 is an auxiliary cover, 102 is a fixed contact, 103 is a fixed contact base, 104 is a movable contact, 105 is a movable contact base, and 101 is a power source. Side terminal 107, load side terminal, 120 bimetal, 121 heater, 122 conductor, 109 earth leakage tripping device, 110 earth leakage detection circuit, and 114 an accessory device housing.

本体ケース１１１と本体カバー１１２とによって空間部が形成され、その空間部に回路を開閉する接点が内蔵されている。接点は、固定接点台１０３の一端部に設けられた固定接点１０２と、可動接点台１０４の一端部に設けられた可動接点１０２とからなり、可動接点１０２が固定接点１０２に接することによって回路への通電している。   A space is formed by the body case 111 and the body cover 112, and a contact for opening and closing a circuit is built in the space. The contact is composed of a fixed contact 102 provided at one end of the fixed contact base 103 and a movable contact 102 provided at one end of the movable contact base 104. When the movable contact 102 comes into contact with the fixed contact 102, a circuit is formed. Is energized.

固定接点台１０３は、本体ケース１１１に固定され、本体ケース１１１の外側部に他端部が配置され、電源側端子１０１を構成している。   The fixed contact base 103 is fixed to the main body case 111, and the other end portion is disposed on the outer side of the main body case 111, thereby constituting the power supply side terminal 101.

可動接点台１０５は、ばねにより図１において反時計方向に回動可能に付勢され、そのばねのばね力により可動接点１０４が固定接点１０２に対し一定の力で接触するようにしている。また、可動接点台１０５の他端にはリード線を介し、ヒータ１２１が接続されて、過電流検出手段であるバイメタル１２０はヒータ１２１に接続されている。さらに、バイメタル１２０には導体１２２を介し負荷端子１０７が接続されている。導体１２２は、各極毎に設けられ、それぞれが零相変流器１０８を貫通している。
そして、回路を流れる地絡電流が所定の値に達すると、それを零相変流器１０８が検出し、その検出信号を漏電検出手段で増幅して漏電引外し装置を駆動する。 The movable contact base 105 is urged by a spring so as to be pivotable counterclockwise in FIG. 1, and the movable contact 104 contacts the fixed contact 102 with a constant force by the spring force of the spring. In addition, a heater 121 is connected to the other end of the movable contact base 105 via a lead wire, and a bimetal 120 serving as an overcurrent detection unit is connected to the heater 121. Further, a load terminal 107 is connected to the bimetal 120 via a conductor 122. The conductor 122 is provided for each pole and passes through the zero-phase current transformer 108.
When the ground fault current flowing through the circuit reaches a predetermined value, the zero-phase current transformer 108 detects this, and the detection signal is amplified by the leakage detection means to drive the leakage trip device.

また、本体カバー１１２には、内部付属装置収納部１１４を設置し、この内部付属装置収納部１１４に漏電引き外し装置１０９を駆動する漏電検出回路１１０の電源ラインが配置され、内部付属装置収納部１１４には前記電源ラインと直列に接続され、かつ主回路の開閉と連動して開閉する逆接続用補助接点１１５が収納できる。また、補助カバー１１３は内部付属装置収納部をカバーしている。   The main body cover 112 is provided with an internal accessory device storage portion 114, and the power supply line of the leakage detection circuit 110 for driving the leakage trip device 109 is disposed in the internal accessory device storage portion 114. 114 can accommodate an auxiliary contact 115 for reverse connection that is connected in series with the power supply line and that opens and closes in conjunction with the opening and closing of the main circuit. The auxiliary cover 113 covers the internal accessory device storage.

図２に本発明の漏電遮断器の内部構成の模式図を示す。図２において、２０１は電源側端子、２０３は主回路接点、２０７は負荷側端子、２０８は零相変流器（ＺＣＴ）、２０９は漏電引き外し装置、２１０は漏電検出装置、２１４は接続線、２１５は逆接続用補助接点である。   FIG. 2 shows a schematic diagram of the internal configuration of the leakage breaker of the present invention. In FIG. 2, 201 is a power supply side terminal, 203 is a main circuit contact, 207 is a load side terminal, 208 is a zero phase current transformer (ZCT), 209 is a leakage trip device, 210 is a leakage detection device, and 214 is a connection line. Reference numeral 215 denotes an auxiliary contact for reverse connection.

漏電遮断器は、電源側端子２０１と負荷側端子２０７によって接続され、電源側端子２０１と負荷側端子２０７間には主回路接点２０３が設けられている。主回路は漏電を検出する零相変流器（ＺＣＴ）２０８を貫通しており、零相変流器（ＺＣＴ）は漏電引外しを判定し、漏電引外し装置２０９を駆動する漏電検出回路２１０が接続されている。漏電検出回路は主回路に接続され、電源が供給される構造となっている。前記漏電検出回路の電源ラインは漏電遮断器の内部付属装置収納部近傍で、コネクタ等の容易に着脱できる接続器によって電気的に接続されている。内部付属装置収納部に主回路接点と連動して開閉する逆接用補助接点２１５を収納し、かつ前記電源ラインと補助接点を接続することにより容易に逆接続可能型漏電遮断器を得ることができる。逆接続用補助接点は、マイクロスイッチにて構成される。   The earth leakage breaker is connected by a power supply side terminal 201 and a load side terminal 207, and a main circuit contact 203 is provided between the power supply side terminal 201 and the load side terminal 207. The main circuit passes through a zero-phase current transformer (ZCT) 208 that detects a leakage, and the zero-phase current transformer (ZCT) determines a leakage trip, and a leakage detection circuit 210 that drives the leakage breaker 209. Is connected. The leakage detection circuit is connected to the main circuit and is supplied with power. The power supply line of the leakage detection circuit is electrically connected by an easily attachable / detachable connector such as a connector in the vicinity of the internal accessory device housing of the leakage breaker. By connecting the auxiliary contact 215 for reverse connection that opens and closes in conjunction with the main circuit contact in the internal accessory storage unit, and connecting the power line and the auxiliary contact, it is possible to easily obtain a reverse connection type earth leakage breaker. . The auxiliary contact for reverse connection is constituted by a micro switch.

図３に内部付属装置をワンタッチで取付けできる通常の漏電遮断器内部構成を示す。通常、漏電遮断器や配線用遮断器は必要に応じて補助接点（ＡＵＸ）２１６を追加できる構造となっているが、前記内部付属装置収納部に補助接点（ＡＵＸ）２１６を追加すれば、通常の補助接点付の漏電遮断器を得ることができる。このように通常の漏電遮断器の内部付属装置を収納する箇所に逆接続用補助接点を設置できるため、漏電遮断器の構造を大きく変更しなくてよい。   FIG. 3 shows an internal configuration of a normal earth leakage breaker in which an internal accessory device can be attached with one touch. Normally, the earth leakage circuit breaker and the circuit breaker have a structure in which an auxiliary contact (AUX) 216 can be added if necessary. However, if the auxiliary contact (AUX) 216 is added to the internal accessory device storage unit, An earth leakage circuit breaker with an auxiliary contact can be obtained. As described above, since the auxiliary contact for reverse connection can be installed at the place where the internal auxiliary device of the ordinary earth leakage breaker is housed, the structure of the earth leakage breaker need not be changed greatly.

本発明の実施例を図４に示す。図４において、４１４は内部付属装置収納部、４１６は逆接続用補助接点、４１７は接続線、４０９は漏電引き外し装置、４１０は漏電検出回路、４１８は電源ラインである。本体カバーの内部付属装置収納部４１４には漏電引外し装置４０９を駆動する漏電検出回路４１０の電源ライン４１８が引き込まれている。通常の漏電遮断器として使用する場合は、電源ライン４１８は接続線４１７にて接続された状態となっており、逆接続型漏電遮断器として使用する場合には、接続線４１７の代わりに漏電遮断器の主接点と同期して開閉する逆接続用補助接点４１６を内部付属装置収納部４１４に設置することで簡単に変更が可能となっている。また、電源ライン４１８と接続線４１７又は逆接続用補助接点は、バネ状の弾性を持った導電性の金属にて接続線４１７や逆接続用補助接点４１６を本体カバーに収納することで接続が得られ、電源ライン４１８と逆接続用補助接点の端子の幅及び接続線の幅は同じとする。   An embodiment of the present invention is shown in FIG. In FIG. 4, 414 is an internal accessory device storage section, 416 is an auxiliary contact for reverse connection, 417 is a connection line, 409 is a leakage trip device, 410 is a leakage detection circuit, and 418 is a power line. The power supply line 418 of the leakage detection circuit 410 that drives the leakage trip device 409 is drawn into the internal accessory storage portion 414 of the main body cover. When used as a normal earth leakage breaker, the power line 418 is connected to the connection line 417. When used as a reverse connection type earth leakage breaker, the earth leakage breaker is used instead of the connection line 417. The auxiliary connection contact 416 for reverse connection that opens and closes in synchronization with the main contact of the device is installed in the internal accessory device storage portion 414 so that it can be easily changed. Further, the power supply line 418 and the connection line 417 or the auxiliary contact for reverse connection can be connected by housing the connection line 417 and the auxiliary contact for reverse connection 416 in the main body cover with a spring-like elastic conductive metal. The obtained power supply line 418 and the reverse connection auxiliary contact terminal width and connection line width are the same.

また、図示していないが、内部付属装置収納部４１４に、接続線４１７又は逆接続用補助接点４１６を設置する場合、ロック機構などを設けて電気的接続維持する構造にする。   Although not shown, when the connection line 417 or the reverse connection auxiliary contact 416 is installed in the internal accessory storage unit 414, a structure is provided to maintain electrical connection by providing a lock mechanism or the like.

このように、内部付属装置収納部に接続線４１７を接続すれば通常の漏電遮断器として使用でき、漏電遮断器の主接点と同期して開閉する逆接続用補助接点を設け、接続すれば逆接続可能型漏電遮断器として使用できる。   In this way, if the connection line 417 is connected to the internal accessory housing, it can be used as a normal earth leakage breaker, and an auxiliary contact for reverse connection that opens and closes in synchronization with the main contact of the earth leakage breaker is provided, and if connected, the connection is reversed. Can be used as a connectable earth leakage breaker.

１００‥漏電遮断器 １０１‥電源側端子 １０２‥固定接点
１０３‥固定接点台 １０４‥ 可動接点
１０５‥可動接点台 １０６‥開閉機構 １０７‥負荷側端子
１０８‥零相変流器（ＺＣＴ） １０９‥漏電引外し装置
１１０‥漏電検出回路 １１１‥ケース １１２‥本体カバー
１１３‥補助カバー １１５‥逆接続用補助接点
２０１‥電源側端子 ２０３‥主回路接点 ２０７‥負荷側端子
２０８‥零相変流器（ＺＣＴ） ２０９‥漏電引外し装置
２１０‥漏電検出回路 ２１５‥逆接用補助接点
２１６‥補助接点（ＡＵＸ） ４０９‥漏電引外し装置
４１０‥漏電検出回路 ４１４‥内部付属装置収納部
４１６‥逆接続用補助接点 ４１７‥接続線 ４１８‥電源ライン
５７１‥商用電源ライン ５７２‥太陽光発電システムライン
５７３‥主幹遮断器 ５７４‥太陽光発電側システム保護遮断器。 DESCRIPTION OF SYMBOLS 100 ... Earth leakage breaker 101 ... Power supply side terminal 102 ... Fixed contact 103 ... Fixed contact stand 104 ... Movable contact 105 ... Moveable contact stand 106 ... Opening / closing mechanism 107 ... Load side terminal 108 ... Zero phase current transformer (ZCT) 109 ... Earth leakage Trip device 110 ... Leakage detection circuit 111 · Case 112 · Body cover 113 · Auxiliary cover 115 · Reverse contact auxiliary contact 201 · Power supply side terminal 203 · Main circuit contact 207 · Load side terminal 208 · Zero phase current transformer (ZCT) 209 ... Earth leakage tripping device
210 ... Leakage detection circuit 215 ... Auxiliary contact for reverse connection
216 ... Auxiliary contact (AUX) 409 ... Leakage tripping device 410 ... Leakage detection circuit 414 ... Internal accessory device storage 416 ... Auxiliary contact for reverse connection 417 ... Connection line 418 ... Power supply line 571 ... Commercial power supply line 572 ... Solar power generation System line 573: Main circuit breaker 574: Solar power generation system protection circuit breaker.

Claims (3)

主回路を開閉するための主回路接点と、
該主回路接点を開閉するための開閉機構部と、
漏電発生時に主回路を開路させる漏電引外し装置と、
該漏電引外し装置を駆動及び漏電電流を検出する漏電検出回路を備えた漏電遮断器において、
前記漏電引外し装置を駆動する前記漏電検出回路の電源ラインが、内部付属装置収納部にて接続線又は逆接続用補助接点を容易に取り外し交換可能とし電気的に接続したことを特徴とする漏電遮断器。 A main circuit contact for opening and closing the main circuit;
An opening and closing mechanism for opening and closing the main circuit contact;
An earth leakage trip device that opens the main circuit in the event of an earth leakage;
In the earth leakage breaker equipped with the earth leakage detection circuit for driving the earth leakage trip device and detecting the earth leakage current,
The power supply line of the leakage detection circuit for driving the leakage trip device is electrically connected so that the connection line or the auxiliary contact for reverse connection can be easily removed and replaced in the internal accessory device housing portion. Circuit breaker. 請求項１の漏電遮断器において、
内部付属装置である補助接点（ＡＵＸ）のa接点ラインと、前記漏電検出回路及び漏電引外し装置の電源ライン接続部が、前記内部付属装置を取付けたときに係合し、前記主回路と連動して開閉する漏電検出回路及び漏電引外し装置の電源ライン回路を形成することを特徴とする漏電遮断器。 The earth leakage breaker of claim 1,
The auxiliary contact (AUX) a contact line, which is an internal accessory device, and the leakage detection circuit and the power line connection part of the leakage trip device are engaged when the internal accessory device is attached, and interlock with the main circuit. An earth leakage circuit breaker characterized by forming an earth leakage detection circuit that opens and closes and a power line circuit of the earth leakage trip device . 請求項２の漏電遮断器において、
前記内部付属装置収納部に、外部及びユーザー側にて補助接点（ＡＵＸ）の内部付属装置をワンタッチで取付け可能な構造としたことを特徴とする漏電遮断器。 The earth leakage breaker of claim 2,
An earth leakage circuit breaker having a structure in which an internal auxiliary device of an auxiliary contact (AUX) can be attached to the internal auxiliary device storage portion at the outside and a user side by one touch.
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