JPH0488832A - Current limiter - Google Patents
Current limiterInfo
- Publication number
- JPH0488832A JPH0488832A JP2199903A JP19990390A JPH0488832A JP H0488832 A JPH0488832 A JP H0488832A JP 2199903 A JP2199903 A JP 2199903A JP 19990390 A JP19990390 A JP 19990390A JP H0488832 A JPH0488832 A JP H0488832A
- Authority
- JP
- Japan
- Prior art keywords
- current value
- set current
- current limiter
- limiter
- control station
- 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
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電力契約需要家等に設置されて使用電力量を
監視し制御する機能を有する電流制限器に関し、詳しく
は、電力会社等の制御局と需要家等の被制御局との間で
データ伝送する機能を持ち、制御局からの遠隔制御操作
によって契約電力量の変更を行えるようにした電流制限
器しこ関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a current limiter that is installed in a power contract consumer, etc. and has a function of monitoring and controlling the amount of power used. It relates to a current limiter that has the function of transmitting data between a control station and a controlled station such as a consumer, and that allows the contracted power amount to be changed by remote control operation from the control station.
（従来の技術） 従来の電流制限器は、例えば単相二線式１ｉｏｖ 。(Conventional technology) A conventional current limiter is, for example, a single-phase two-wire 1iOV.
単相三線式１１０／ ２２０Ｖ等の定格電圧に応じ、各
々定格電流が異なる複数種類のものが用意されている。Multiple types are available, each with a different rated current depending on the rated voltage, such as single-phase three-wire type 110/220V.
すなわち、これらの電流制限器では、過電流判定基準と
なる電流値（動作電流）は予め設定された固定値となっ
ている。従って、需要家が契約電力量を変更するために
電流制限器の設定電流値を変更するには、電力会社側が
需要家に出向き、電流制限器自体を所望の設定電流値の
ものに交換することが必要であった。That is, in these current limiters, the current value (operating current) serving as an overcurrent determination criterion is a fixed value set in advance. Therefore, in order for a consumer to change the set current value of a current limiter in order to change the contracted power amount, the power company must visit the consumer and replace the current limiter itself with one with the desired set current value. was necessary.
（発明が解決しようとする課題）
しかしながら、これによると電流制限器の交換作業に煩
雑な手間と多くの時間を要し、また、通常、需要家の配
電線引き込み口に取付けられているこの種の電流制限器
の交換は停電を伴うという不都合があった。(Problems to be Solved by the Invention) However, according to this method, replacing the current limiter requires troublesome work and a lot of time. There was the inconvenience that replacing the current limiter in a conventional system would involve a power outage.
本発明は上記問題点を解決するためになされたもので、
その目的とするところは、データ伝送機能により、遠隔
地から過電流判定基準め設定電流値を短時間で容易に変
更することができ、従来のような電流制限器自体の交換
作業や、停電による不便を解消するようにした電流制限
器を提供することにある。The present invention has been made to solve the above problems,
The purpose of this is to use the data transmission function to easily change the set current value for the overcurrent judgment standard from a remote location in a short time. An object of the present invention is to provide a current limiter that eliminates inconvenience.
（課題を解決するための手段）
上記目的を達成するため、本発明は、過電流判定基準と
なる設定電流値を越える電力使用がなされた際に電源側
からの電力供給を遮断する手段を備えた電流制限器にお
いて、比較的遠隔地にある制御局から例えば有線方式に
より設定電流値変更データを受信するデータ受信手段と
、前記設定電流値変更データに基づいて前記設定電流値
を切り換える設定電流値切換回路とを備えたものである
。(Means for Solving the Problems) In order to achieve the above object, the present invention includes means for cutting off power supply from the power source when power consumption exceeds a set current value that is an overcurrent determination standard. In the current limiter, data receiving means receives set current value change data from a control station located in a relatively remote location, for example, by a wired method, and a set current value that switches the set current value based on the set current value change data. It is equipped with a switching circuit.
（作用）
本発明によれば、制御局から伝送される設定電流値変更
データを需要家に設置された電流制限器が受信すると、
このデータに応じて、設定電流値切換回路が設定電流値
を複数の中から選択して切り換え、過電流検出回路に設
定するように作用する。これにより、過電流判定基準と
しての設定電流値を遠隔地から簡単に変更することがで
きる。(Operation) According to the present invention, when a current limiter installed in a consumer receives set current value change data transmitted from a control station,
In accordance with this data, the set current value switching circuit selects and switches a set current value from among a plurality of values, and operates to set the set current value in the overcurrent detection circuit. Thereby, the set current value as the overcurrent determination criterion can be easily changed from a remote location.
（実施例） 以下１図に沿って本発明の一実施例を説明する。(Example) An embodiment of the present invention will be described below with reference to FIG.
第１図はこの実施例の構成を示すもので、同図において
、Ａは需要家内に設置された電流制限器、Ｂは電力会社
等の制御局、Ｃは両者を結ぶ公衆回線や専用回線等の通
信回線である。Figure 1 shows the configuration of this embodiment. In the figure, A is a current limiter installed in the consumer, B is a control station of an electric power company, etc., and C is a public line or private line connecting the two. communication line.
前記電流制限器Ａには、電源側と負荷側との間に介在す
る開閉器１及び変流器２と、この変流器２からの負荷電
流検出信号Ｓ工が入力され、過電流判定基準としての設
定電流値を越える負荷電流を検出した際に過電流検出信
号Ｓ２を出力する過電流検出回路３と、前記過電流検出
信号＄２に基づき開閉器１を動作させる遮断制御信号Ｓ
３を出力する遮断制御回路４とを備えている。A switch 1 and a current transformer 2 interposed between the power supply side and the load side, and a load current detection signal S from the current transformer 2 are inputted to the current limiter A, and the overcurrent judgment standard is input to the current limiter A. an overcurrent detection circuit 3 that outputs an overcurrent detection signal S2 when a load current exceeding a set current value is detected; and a cutoff control signal S that operates the switch 1 based on the overcurrent detection signal $2.
A cutoff control circuit 4 that outputs 3 is provided.
一方、電流制限器Ａには伝送制御部５が設けられており
、この伝送制御部５は通信回線Ｃを介して制御局Ｂ内の
伝送制御部（図示せず）に接続されている。伝送制御部
５は、制御局Ｂから伝送される設定電流値変更データを
受信可能であり、この受信データをチエツクして適宜加
工した後、受信データに基づいて後述する設定電流値切
換回路６の切換スイッチ６ａを切り換える選択信号Ｓ４
を出力するように構成されている。On the other hand, the current limiter A is provided with a transmission control section 5, and this transmission control section 5 is connected to a transmission control section (not shown) in the control station B via a communication line C. The transmission control unit 5 is capable of receiving set current value change data transmitted from the control station B, checks this received data and processes it as appropriate, and then changes the set current value switching circuit 6 to be described later based on the received data. Selection signal S4 for switching the changeover switch 6a
is configured to output.
なお、上記伝送制御部５及び通信回線Ｃは本発明におけ
るデータ受信手段を構成するものである。Note that the transmission control section 5 and the communication line C constitute data receiving means in the present invention.
また、設定電流値切換回路６は、電流制限器Ａとしての
過電流判定基準となる複数の設定電流値を電圧値Ｅ、、
、Ｅ、、Ｅ、、・・・、Ｅｎとして保持している。そし
て、これらの設定電流値の何れかを、上記選択信号Ｓ４
によって切り換わる切換スイッチ６ａを介し、設定信号
Ｓｓとして前記過電流検出回路３に設定可能となってい
る。Further, the set current value switching circuit 6 converts a plurality of set current values, which serve as overcurrent determination criteria for the current limiter A, to a voltage value E, .
, E, , E, ..., En. Then, any one of these set current values is selected by the selection signal S4.
It can be set to the overcurrent detection circuit 3 as a setting signal Ss via a changeover switch 6a that is switched by.
このように構成することにより、制御局Ｂから伝送され
た設定電流値変更データに基づき、電流制限器Ａでは設
定電流値切換回路６が所定の設定電流値を選択して過電
流検出回路３に設定することが可能になり、負荷電流値
がこの設定電流値を越えた場合に遮断制御回路４を介し
開閉器１を動作させて電力の供給を遮断するものである
。従って、需要家の契約電力量の変更を、電流制限器を
交換することなく遠隔地から簡単に行なうことができる
。With this configuration, based on the set current value change data transmitted from the control station B, the set current value switching circuit 6 in the current limiter A selects a predetermined set current value and sends it to the overcurrent detection circuit 3. When the load current value exceeds the set current value, the switch 1 is operated via the cutoff control circuit 4 to cut off the power supply. Therefore, the customer's contract power amount can be easily changed from a remote location without replacing the current limiter.
なお、第１図では単相三線式の需要家を想定しているが
、本発明は単相二線式で受電している需要家内の電流制
限器にも勿論適用可能である。また、制御局Ｂからのデ
ータ受信の方式は無線通信方式であってもよい。更に、
制御局Ｂとの間のデータ伝送に関し、本発明では電流制
限器Ａがデータ受信機能を持っていれば十分であるが、
実際上は、電流制限１ｉ１Ａが制御局Ｂに対するデータ
送信機能を併せて持ち、設定電流値変更動作の完了等を
制御局Ｂ側へ応答するように構成することが好ましい。Although FIG. 1 assumes a single-phase, three-wire type consumer, the present invention is of course applicable to a current limiter in a consumer that receives power in a single-phase, two-wire type. Further, the method of receiving data from the control station B may be a wireless communication method. Furthermore,
Regarding data transmission with control station B, in the present invention, it is sufficient if current limiter A has a data reception function;
In practice, it is preferable that the current limiter 1i1A also has a data transmission function to the control station B, and is configured to respond to the control station B with information such as the completion of a set current value changing operation.
（発明の効果）
以上説明したように本発明によれば、制御局から伝送さ
れる設定電流値変更データに応じて、過電流判定基準と
しての設定電流値を任意に切り換え可能であるため、設
定電流値の変更すなわち契約電力量の変更を遠隔地から
容易かつ迅速に行なうことができる。従って、電流制限
器の交換作業に伴う多大な労力や時間をなくすことがで
きると共に、需要家側の停電による不便も解消すること
ができる。(Effects of the Invention) As explained above, according to the present invention, it is possible to arbitrarily switch the set current value as an overcurrent judgment criterion in accordance with the set current value change data transmitted from the control station. It is possible to easily and quickly change the current value, that is, change the contracted power amount from a remote location. Therefore, it is possible to eliminate a great deal of labor and time associated with the work of replacing the current limiter, and it is also possible to eliminate the inconvenience caused by power outages on the consumer side.
更に、従来のように定格電流毎に電流制限器を用意する
必要がなく、単一の電流制限器によって契約電力量の異
なる様々な需要家に対応し得るため、汎用性に富む等の
効果がある。Furthermore, there is no need to prepare a current limiter for each rated current as in the past, and a single current limiter can serve a variety of customers with different contracted power amounts, resulting in greater versatility. be.
第１図は本発明の一実施例を示す構成図である。
１・・・開閉器
３・・・過電流検出回路
５・・・伝送制御部
６ａ・・・切換スイッチ
Ａ・・・電流制限器
Ｃ・・・通信回線
２・・・変流器
４・・・遮断制御回路
６・・・設定電流値切換回路
Ｂ・・・制御局
第１図
１ 開閉ＭＩ２ｉａ紀昏
３’Ａ’ｆｌ！；ｋＪＢＥＪｋｌｒ ４：Ｌ斬制ｐω
に５ ’、 ｉ’ｉ−Ｌ刷ｊＨ’ａｐ ６ ： ’
５’ｌ電１ａｌ＝（ｉＬ７［’１ｉＫ６ａ τ刀詞艷
ス、イ・７号
Ａｏｌ−引ン０ゴＰ蓼ヒ」＝１ Ｂ’！−１情ＡＣ：
：ＪＬ轄ｃ］＃ＬFIG. 1 is a block diagram showing an embodiment of the present invention. 1... Switch 3... Overcurrent detection circuit 5... Transmission control unit 6a... Changeover switch A... Current limiter C... Communication line 2... Current transformer 4... - Cutoff control circuit 6... Set current value switching circuit B... Control station Fig. 1 Opening/closing MI2ia period 3'A'fl! ;kJBEJklr 4:L slash control pω
5', i'i-L printing jH'ap 6:'
5'lden1al=(iL7['1iK6a τtoto 艷su、I・7 Aol-punn0goP蓼hi''=1 B'!-1joAC:
:JL jurisdiction c] #L
Claims (1)
された際に電源側からの電力供給を遮断する手段を備え
た電流制限器において、 制御局から伝送される設定電流値変更データを受信可能
なデータ受信手段と、前記設定電流値変更データに基づ
いて前記設定電流値を切り換える設定電流値切換回路と
を備えたことを特徴とする電流制限器。[Scope of Claims] In a current limiter equipped with a means for cutting off power supply from the power supply side when power consumption exceeds a set current value serving as an overcurrent determination standard, a set current transmitted from a control station is provided. A current limiter comprising: data receiving means capable of receiving value change data; and a set current value switching circuit that switches the set current value based on the set current value change data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2199903A JPH0488832A (en) | 1990-07-27 | 1990-07-27 | Current limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2199903A JPH0488832A (en) | 1990-07-27 | 1990-07-27 | Current limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0488832A true JPH0488832A (en) | 1992-03-23 |
Family
ID=16415519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2199903A Pending JPH0488832A (en) | 1990-07-27 | 1990-07-27 | Current limiter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0488832A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04112621A (en) * | 1990-08-31 | 1992-04-14 | Mitsubishi Electric Corp | Electric machine |
| JP2007074862A (en) * | 2005-09-08 | 2007-03-22 | Kyushu Electric Power Co Inc | Re-transmission remote control device and re-transmission remote control system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55125017A (en) * | 1979-03-19 | 1980-09-26 | Tokyo Electric Power Co | Protective relay system |
-
1990
- 1990-07-27 JP JP2199903A patent/JPH0488832A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55125017A (en) * | 1979-03-19 | 1980-09-26 | Tokyo Electric Power Co | Protective relay system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04112621A (en) * | 1990-08-31 | 1992-04-14 | Mitsubishi Electric Corp | Electric machine |
| JP2007074862A (en) * | 2005-09-08 | 2007-03-22 | Kyushu Electric Power Co Inc | Re-transmission remote control device and re-transmission remote control system |
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