JPH0837722A - Power distribution monitor device for residence - Google Patents
Power distribution monitor device for residenceInfo
- Publication number
- JPH0837722A JPH0837722A JP6174123A JP17412394A JPH0837722A JP H0837722 A JPH0837722 A JP H0837722A JP 6174123 A JP6174123 A JP 6174123A JP 17412394 A JP17412394 A JP 17412394A JP H0837722 A JPH0837722 A JP H0837722A
- Authority
- JP
- Japan
- Prior art keywords
- power failure
- phase
- power
- detection device
- load
- 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
Landscapes
- Distribution Board (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、停電表示，過電流表
示、漏電識別表示などの機能を備えた住居用配電監視装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a residential power distribution monitoring device having functions such as a power failure display, an overcurrent display, and an earth leakage identification display.
【０００２】[0002]
【従来の技術】図４は屋外の単相三線式配電線Ｐから主
幹配電盤Ｍ（過電流保護機能付き漏電遮断器Ｎなどの機
器を内蔵している。）を通じて、複数個の回路遮断器
Ｂ，Ｂ，Ｂ─，Ｂ′，Ｂ′，Ｂ′─を介して住居内の各
部屋に配電する分電盤Ｈを示している。この分電盤Ｈは
住居用配電監視装置の一部を構成しているが、従来の住
居用配電監視装置においては、電源側の停電検出装置及
び負荷側（住居側）の停電検出装置は共に、単相三線式
配電線Ｐにおいて、主幹配電盤Ｍに内蔵されている過電
流保護機能付き漏電遮断器Ｎの二次側に設置されてい
る。2. Description of the Related Art FIG. 4 shows a plurality of circuit breakers B from an outdoor single-phase three-wire distribution line P through a main distribution board M (which incorporates equipment such as an earth leakage breaker N with an overcurrent protection function). , B, B-, B ', B', B'-, shows a distribution board H for distributing power to each room in the house. This distribution board H constitutes a part of the residential power distribution monitoring device, but in the conventional residential power distribution monitoring device, both the power failure detection device on the power supply side and the power failure detection device on the load side (residential side) are both provided. In the single-phase three-wire distribution line P, it is installed on the secondary side of the earth leakage breaker N with an overcurrent protection function built in the main distribution board M.
【０００３】[0003]
【発明が解決しようとする課題】ところが上記の従来の
住居用配電監視装置では、電源側の停電検出装置は負荷
側（住居側）の停電検出装置と同様に、単相三線式配電
線Ｐの二次側に設置されているために、単相三線式配電
線Ｐ上の何処かに例えばトリップ動作が起こると、この
トリップ動作に起因して負荷側（住居側）の停電検出装
置が動作して停電事故を表示する。しかし、電源側の停
電検出装置も同時に動作して停電事故を表示することに
なるから、この停電事故は、主幹配電盤Ｍ内の電源側で
発生したものか、または負荷側（住居側）で発生したも
のか、つまり過電流保護機能付き漏電遮断器Ｎの一次側
で発生したものか、または二次側で発生したものかを判
別できないという問題がある。However, in the conventional residential power distribution monitoring device described above, the power failure detection device on the power supply side is the same as the power failure detection device on the load side (residential side) of the single-phase three-wire distribution line P. Since a trip operation occurs somewhere on the single-phase three-wire distribution line P because it is installed on the secondary side, the power failure detection device on the load side (residential side) operates due to this trip operation. To display a power failure accident. However, since the power failure detection device on the power supply side also operates to display the power failure accident, this power failure accident occurs on the power supply side in the main switchboard M or on the load side (residential side). There is a problem that it is not possible to determine whether it is the one that occurred on the primary side or the one that occurred on the secondary side of the earth leakage breaker N with an overcurrent protection function.
【０００４】本発明は前記のような問題点に鑑み、単相
三線式配電線上の何処かに例えばトリップ動作が発生し
た場合に、そのトリップ動作に起因した停電事故が過電
流保護機能付き漏電遮断器の一次側で発生したものか、
また二次側で発生したものかを、表示ランプの点灯によ
りその原因箇所を即座に判別できて、専門家の保守管理
者はもちろんのこと電気の素人でも直ちにその停電事故
の復旧作業に従事できることを目的としている。In view of the above-mentioned problems, the present invention is directed to a case where, for example, a trip operation occurs somewhere on the single-phase three-wire distribution line, a power failure caused by the trip operation causes a leakage interruption with an overcurrent protection function. It was generated on the primary side of the vessel,
Also, it is possible to immediately determine the cause of the power failure by illuminating the indicator lamp to see if it has occurred on the secondary side, and not only specialist maintenance managers but also electric laymen can immediately engage in recovery work from the power outage accident. It is an object.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明に係る住居用配電監視装置は、単相三線式配電
線上に設置されている回路遮断器に対して、単相三線式
配電線の一次側には、表示ランプを備えた電源側停電検
出装置を設置するとともに、単相三線式配電線の二次側
には、停電表示ランプを備えた負荷側（住居側）停電検
出装置を設置することを特徴とするものであるが、前記
回路遮断器としては過電流保護機能付き漏電遮断器を使
用している。In order to achieve the above object, a residential distribution monitoring apparatus according to the present invention is a single-phase, three-wire type distribution system for a circuit breaker installed on a single-phase, three-wire type distribution line. A power-side power failure detection device equipped with an indicator lamp is installed on the primary side of the wire, and a load-side (residential side) power failure detection device equipped with a power failure indicator lamp on the secondary side of the single-phase three-wire distribution line. However, as the circuit breaker, an earth leakage breaker with an overcurrent protection function is used.
【０００６】また、負荷側停電検出装置が停電事故を検
出したとき、その装置の持つインピーダンスと、単相三
線式配電線の電源線の一端と中性線との間に挿入されて
いるリレーの持つインピーダンスとが、異なることに起
因する単相三線式配電線の不平衡状態を検出して負荷を
遮断することを特徴とするものである。Further, when the load side power failure detection device detects a power failure accident, the impedance of the device and the relay inserted between one end of the power supply line of the single-phase three-wire distribution line and the neutral line are detected. It is characterized by detecting the unbalanced state of the single-phase three-wire distribution line caused by the difference in the impedance that it has, and cutting off the load.
【０００７】[0007]
【作用】次に、本発明に係る住居用配電監視装置の作用
について述べる。単相三線式配電線上の何処かに停電事
故が発生すると、電源側停電検出装置の表示ランプ及び
負荷側停電検出装置の表示ランプは、共に点灯すること
により回路の停電事故を表示する。また通常の正常待機
時，電源側停電時，過電流事故発生時及び漏電事故また
は欠相事故発生時の何れの場合でも、負荷側停電検出装
置の表示ランプが点灯することにより、回路に事故が発
生していることを表示するのである。Next, the operation of the residential distribution monitoring apparatus according to the present invention will be described. When a power failure occurs somewhere on the single-phase three-wire distribution line, both the display lamps of the power supply side power failure detection device and the load side power failure detection device display the power failure accident of the circuit. In addition, during normal normal standby, power failure on the power supply side, overcurrent accident, and leakage or open-phase accident, the load side power failure detection device's indicator lamp lights up, causing an accident in the circuit. It shows what is happening.
【０００８】また、負荷側停電検出装置により停電事故
を検出するとその装置のインピーダンスと、単相三線式
配電線の電源線の一端と中性線との間に挿入されている
リレーのインピーダンスとが異なることになるので、こ
れに起因する単相三線式配電線の不平衡状態を検出し
て、負荷を制御して遮断するのである。Further, when the load side power failure detection device detects a power failure accident, the impedance of the device and the impedance of the relay inserted between one end of the power supply line of the single-phase three-wire distribution line and the neutral line are detected. Since they are different, the unbalanced state of the single-phase three-wire distribution line resulting from this is detected, and the load is controlled and cut off.
【０００９】[0009]
【実施例】以下、図面を参照しながら本発明の実施例を
具体的に説明する。図１は本発明に係る住居用配電監視
装置の一実施例を示す電気回路図であって、通常の正常
待機状態を示す電気回路図、図２は同上の電源側停電時
状態を示す電気回路図である。Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is an electric circuit diagram showing an embodiment of a residential power distribution monitoring device according to the present invention, an electric circuit diagram showing a normal normal standby state, and FIG. 2 is an electric circuit showing a power supply side power failure state in the above. It is a figure.
【００１０】図中のＮは単相三線式配電線Ｐ上に設置さ
れた過電流保護機能付き漏電遮断器であるが、内部には
単相三線式配電線Ｐの漏電検出機構ｎと過電流検出機構
ｎ′とを内蔵しており、漏電検出機構ｎの漏電検出によ
り閉路する接点イと、過電流検出機構ｎ′の過電流検出
により開路する接点イ′とを備えている。単相三線式配
電線Ｐにおいて、過電流保護機能付き漏電遮断器Ｎの一
次側（電源側）には電源側停電検出装置１を設置すると
ともに、過電流保護機能付き漏電遮断器Ｎの二次側（負
荷側）には負荷側（住居側）停電検出装置２を設置する
ものである。そして電源側停電検出装置１は停電表示ラ
ンプＬ1 を備えているとともに、負荷側（住居側）停電
検出装置２には停電表示ランプＬ2 を備えている。Reference numeral N in the figure denotes an earth leakage breaker with an overcurrent protection function installed on the single-phase three-wire distribution line P. It has a built-in detection mechanism n ', and has a contact a which is closed by the leakage detection of the leakage detection mechanism n and a contact a'which is opened by the overcurrent detection of the overcurrent detection mechanism n'. In the single-phase three-wire type distribution line P, the power supply side power failure detection device 1 is installed on the primary side (power supply side) of the earth leakage breaker N with the overcurrent protection function, and the secondary side of the earth leakage breaker N with the overcurrent protection function is installed. The load side (residential side) power failure detection device 2 is installed on the side (load side). The power supply side power failure detection device 1 is equipped with a power failure display lamp L 1 , and the load side (residential side) power failure detection device 2 is equipped with a power failure display lamp L 2 .
【００１１】先ず、通常の正常待機状態を示す電気回路
図である図１に付いて述べる。Ｘ1は電源側停電検出装
置１の両端に挿入されたリレーであって、そのリレーＸ
1 の動作により開閉する接点ｘ1 （ブレーク接点）は、
単相三線式配電線Ｐの電源の一端と漏電検出機構ｎの漏
電検出により閉路する接点イの常開側との間に接続され
ている。Ｘ2 は単相三線式配電線Ｐの電源線の一端と中
性線との間に挿入されたリレーであって、そのリレーＸ
2 の動作により開閉する接点ｘ2 （メーク接点）は、リ
レーＸ3 の接点ｘ3 （ブレーク接点）とランプＬ4 に直
列に挿入されており、その直列回路は、リレーＸ1 の動
作により開閉する接点ｘ1 （ブレーク接点）を介して、
単相三線式配電線Ｐの電源の一端と中性線との間に挿入
されている。表示ランプＬ3 は、接点ｘ3 ′（メーク接
点）（前記リレーＸ3 の接点ｘ3とは他の接点）ととと
もに直列に接続されており、この直列回路も、リレーＸ
1の動作により開閉する接点ｘ1 を介して単相三線式配
電線Ｐの電源の一端と中性線との間に直列に挿入されて
いる。First, a description will be given with reference to FIG. 1, which is an electric circuit diagram showing a normal normal standby state. X 1 is a relay inserted at both ends of the power failure detection device 1 and the relay X
The contact x 1 (break contact) that opens and closes by the action of 1 is
It is connected between one end of the power source of the single-phase three-wire distribution line P and the normally open side of the contact a which is closed by the leakage detection of the leakage detection mechanism n. X 2 is a relay inserted between one end of the power supply line of the single-phase three-wire distribution line P and the neutral line, and the relay X
The contact x 2 (make contact) that opens and closes by the action of 2 is inserted in series with the contact x 3 (break contact) of the relay X 3 and the lamp L 4 , and the series circuit opens and closes by the action of the relay X 1. Via the contact x 1 (break contact)
The single-phase three-wire distribution line P is inserted between one end of the power source and the neutral line. The display lamp L 3 is connected in series with a contact point x 3 ′ (make contact point) (a contact point other than the contact point x 3 of the relay X 3 ), and this series circuit is also connected to the relay X 3.
It is inserted in series between one end of the power supply of the single-phase three-wire type distribution line P and the neutral line via the contact x 1 which opens and closes by the operation of 1 .
【００１２】次に、電力側停電時状態を示す電気回路図
である図２に付いて述べる。図２のの接点ｘ1 ′（メー
ク接点），接点ｘ2 ′（ブレーク接点），接点ｘ3 ′
（ブレーク接点）及び接点ｘ3 1 ′（メーク接点）は、
図１の接点ｘ1 ，接点ｘ2 ，接点ｘ3 及び接点ｘ3 ′に
それぞれ対応しているが、回路中のその他の回路素子は
図１の場合と同様である。なお、図１，２において、Ｆ
は電源ヒューズである。Next, description will be made with reference to FIG. 2, which is an electric circuit diagram showing a power-side power failure state. Contact x 1 ′ (make contact), contact x 2 ′ (break contact), contact x 3 ′ in FIG.
(Break contact) and contact x 3 1 ′ (make contact)
1 correspond to the contact x 1 , the contact x 2 , the contact x 3 and the contact x 3 ′, respectively, but the other circuit elements in the circuit are the same as in the case of FIG. 1. In addition, in FIGS.
Is a power fuse.
【００１３】次に本発明の動作状態を示すと表１のよう
になる。この表１は、本発明に係る住居用配電監視装置
が動作して、（Ａ）は通常の正常待機時，（Ｂ）は電源
側停電時，（Ｃ）は過電流事故発生時，（Ｄ）は漏電事
故または欠相事故発生時において、それぞれリレー
Ｘ1 ，Ｘ2 及びリレーＸ3 のコイル通電状態、表示ラン
プＬ1 ，Ｌ2 ，Ｌ3 及びＬ4 の点灯状態を表したもので
ある。Table 1 shows the operating states of the present invention. Table 1 shows that the residential power distribution monitoring device according to the present invention operates, (A) during normal normal standby, (B) during power failure on the power supply side, (C) during overcurrent accident, and (D). ) is a representation during leakage accident or open phase accident, respectively relay X 1, coil energized state X 2 and the relay X 3, the lighting state of the indicator lamp L 1, L 2, L 3 and L 4 .
【００１４】また、図３は電源側停電検出装置１内部の
電気回路図を示している。通常状態では単相三線式配電
線Ｐの電源Ｅから内部回路Ｇ及びコイルＪに通電してお
り、コイルＪの通電により接点ｋはａ側に接触している
から表示ランプＬ1 は点灯していない。ところが、電源
Ｅ側に停電事故が発生するとコイルＦの通電が断たれる
から、接点ｋは反転してｂ側に接触することになり、蓄
電池Ｅにより表示ランプＬ1 が点灯して停電事故を表示
するのである。FIG. 3 shows an electric circuit diagram inside the power failure detection device 1. In the normal state, the internal circuit G and the coil J are energized from the power source E of the single-phase three-wire distribution line P, and the energization of the coil J causes the contact k to be in contact with the side a, so that the indicator lamp L 1 is on. Absent. However, when a power failure occurs on the power source E side, the coil F is de-energized, so that the contact k is reversed and comes into contact with the b side, and the display lamp L 1 is lit by the storage battery E to cause the power failure accident. It is displayed.
【００１５】[0015]
【表１】 [Table 1]
【００１６】この表１から判るように、単相三線式配電
線Ｐ上の何処かに停電事故が発生すると、電源側停電検
出装置１の表示ランプＬ1 及び負荷側停電検出装置２の
表示ランプＬ2 は、共に点灯することにより回路の停電
事故を表示する。また通常の正常待機時（Ａ），電源側
停電時（Ｂ），過電流事故発生時（Ｃ）及び漏電事故ま
たは欠相事故発生時（Ｄ）の何れの場合でも、負荷側
（住居側）停電検出装置２の表示ランプＬ2 が点灯する
ことにより、回路に事故が発生していることを表示する
のである。As can be seen from Table 1, when a power failure occurs somewhere on the single-phase three-wire distribution line P, the display lamp L 1 of the power supply side power failure detection device 1 and the display lamp of the load side power failure detection device 2 L 2 indicates the power failure accident of the circuit by lighting together. The load side (residential side) in any case of normal normal standby (A), power supply side power failure (B), overcurrent accident (C) and short circuit accident or open phase accident (D) by display lamp L 2 of the power failure detection device 2 is turned, it is to indicate that an accident has occurred in the circuit.
【００１７】[0017]
【発明の効果】本発明は前記のように、単相三線式配電
線上に設置されている回路遮断器に対して、その回路遮
断器の一次側には、表示ランプを備えた電源側停電検出
装置を設置するとともに、その回路遮断器の二次側に
は、停電表示ランプを備えた負荷側停電検出装置を設置
したから、単相三線式配電線上の何処かに例えばトリッ
プ動作が発生した場合に、そのトリップ動作に起因した
停電事故が過電流保護機能付き漏電遮断器の一次側で発
生したものか、また二次側で発生したものかを、表示ラ
ンプの点灯によりその原因箇所を即座に判別できる効果
がある。As described above, the present invention is directed to a circuit breaker installed on a single-phase three-wire distribution line, and a primary side of the circuit breaker is equipped with an indicator lamp to detect power failure on the power supply side. In addition to installing the device, a load side power failure detection device equipped with a power failure indicator lamp was installed on the secondary side of the circuit breaker, so if, for example, a trip operation occurred somewhere on the single-phase three-wire distribution line. In addition, whether the power failure caused by the trip operation occurred on the primary side of the earth leakage breaker with overcurrent protection function or on the secondary side was immediately indicated by lighting the indicator lamp. There is an effect that can be distinguished.
【００１８】また、負荷側停電検出装置により停電事故
を検出したとき、その装置の持つインピーダンスと、単
相三線式配電線の電源線の一端と中性線との間に挿入さ
れているリレーの持つインピーダンスとが、異なること
に起因する単相三線式配電線の不平衡状態を検出して負
荷を制御遮断するから、負荷を即時に遮断すると同時
に、その遮断状態を表示ランプの点灯により表示できる
利点がある。When a load-side power failure detection device detects a power failure, the impedance of the device and the relay inserted between the one end of the power line of the single-phase three-wire distribution line and the neutral line are detected. Since the unbalanced state of the single-phase three-wire distribution line caused by the difference in the impedance that it has is detected and the load is controlled and cut off, the load can be immediately cut off and the cutoff state can be displayed by turning on the display lamp. There are advantages.
【図１】本発明に係る住居用配電監視装置の一実施例を
示す電気回路図であって、通常の正常待機状態を示す電
気回路図。FIG. 1 is an electric circuit diagram showing an embodiment of a residential power distribution monitoring device according to the present invention, the electric circuit diagram showing a normal normal standby state.
【図２】同上の電源側停電時状態を示す電気回路図。FIG. 2 is an electric circuit diagram showing a power failure state on the power supply side in the above.
【図３】同上の電源側停電検出装置内部の電気回路図。FIG. 3 is an electric circuit diagram inside the power failure detection device on the power supply side.
【図４】分電盤の内部回路構成図。FIG. 4 is an internal circuit configuration diagram of a distribution board.
１ 電源側停電検出装置 ２ 負荷側（住居側）停電検出装
置 Ｐ 単相三線式配電線 Ｎ 過電流保護機能付き漏電遮断
器 ｎ 漏電検出機構 ｎ′ 過電流検出機構 イ，イ′ 接点 Ｘ1 ，Ｘ2 ，Ｘ3 リレー Ｌ1 ，Ｌ2 ，Ｌ3 ，Ｌ4 表示ランプ1 Power supply side power failure detection device 2 Load side (residential side) power failure detection device P Single-phase three-wire distribution line N Leakage breaker with overcurrent protection function n Leakage detection mechanism n'Overcurrent detection mechanism A, A'Contact X 1 , X 2 , X 3 relay L 1 , L 2 , L 3 , L 4 indicator lamp
Claims (3)
路遮断器に対して、その回路遮断器の一次側には、表示
ランプを備えた電源側停電検出装置を設置するととも
に、その回路遮断器の二次側には、停電表示ランプを備
えた負荷側停電検出装置を設置することを特徴とする住
居用配電監視装置。1. A circuit breaker installed on a single-phase three-wire distribution line, a primary side of the circuit breaker is provided with a power supply side power failure detection device equipped with an indicator lamp, and the circuit thereof is also provided. A residential power distribution monitoring device characterized in that a load side power failure detection device equipped with a power failure indicator lamp is installed on the secondary side of the circuit breaker.
漏電遮断器であることを特徴とする請求項１記載の住居
用配電監視装置。2. The residential power distribution monitoring device according to claim 1, wherein the circuit breaker is an earth leakage breaker with an overcurrent protection function.
出したとき、その装置の持つインピーダンスと、単相三
線式配電線の電源線の一端と中性線との間に挿入されて
いるリレーの持つインピーダンスとが、異なることに起
因する単相三線式配電線の不平衡状態を検出して負荷を
遮断することを特徴とする住居用配電監視装置。3. When a power failure is detected by the load-side power failure detection device, the impedance of the device and the relay inserted between one end of the power line of the single-phase three-wire distribution line and the neutral line are detected. A residential distribution monitoring apparatus, which detects an unbalanced state of a single-phase three-wire distribution line due to a difference in impedance between the impedance and a load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17412394A JP3587392B2 (en) | 1994-07-26 | 1994-07-26 | Residential distribution monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17412394A JP3587392B2 (en) | 1994-07-26 | 1994-07-26 | Residential distribution monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0837722A true JPH0837722A (en) | 1996-02-06 |
| JP3587392B2 JP3587392B2 (en) | 2004-11-10 |
Family
ID=15973059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17412394A Expired - Fee Related JP3587392B2 (en) | 1994-07-26 | 1994-07-26 | Residential distribution monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3587392B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017123705A (en) * | 2016-01-05 | 2017-07-13 | 日東工業株式会社 | Distribution board monitoring system, distribution board, and distribution board monitoring device that can be installed in them |
-
1994
- 1994-07-26 JP JP17412394A patent/JP3587392B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017123705A (en) * | 2016-01-05 | 2017-07-13 | 日東工業株式会社 | Distribution board monitoring system, distribution board, and distribution board monitoring device that can be installed in them |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3587392B2 (en) | 2004-11-10 |
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