JP2527657Y2 - Relay setting circuit - Google Patents

Relay setting circuit

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Publication number
JP2527657Y2
JP2527657Y2 JP1989122481U JP12248189U JP2527657Y2 JP 2527657 Y2 JP2527657 Y2 JP 2527657Y2 JP 1989122481 U JP1989122481 U JP 1989122481U JP 12248189 U JP12248189 U JP 12248189U JP 2527657 Y2 JP2527657 Y2 JP 2527657Y2
Authority
JP
Japan
Prior art keywords
circuit
setting
relay
input
circuits
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.)
Expired - Lifetime
Application number
JP1989122481U
Other languages
Japanese (ja)
Other versions
JPH0265038U (en
Inventor
玲治 竹内
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP1989122481U priority Critical patent/JP2527657Y2/en
Publication of JPH0265038U publication Critical patent/JPH0265038U/ja
Application granted granted Critical
Publication of JP2527657Y2 publication Critical patent/JP2527657Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Relay Circuits (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

【考案の詳細な説明】[Detailed description of the invention]

【産業上の利用分野】[Industrial applications]

本考案は、複数個の継電器へ同一の変成器出力を各継
電器に対応して設けられた複数個の整定切換回路を介し
て導入し、前記複数個の整定切換回路によって各継電器
毎に整定を変更可能である継電器、特に保護継電器の整
定回路に関する。 この種の整定回路は継電器を構成する回路数を少なく
できる方式であることが望まれる。
The present invention introduces the same transformer output to a plurality of relays via a plurality of settling switching circuits provided corresponding to each relay, and setstles each relay by the plurality of setting switching circuits. The present invention relates to a relay which can be changed, in particular to a setting circuit of a protection relay. It is desired that this type of setting circuit be of a type that can reduce the number of circuits constituting the relay.

【従来の技術】[Prior art]

距離継電器などのように、複数の継電器要素(検出回
路)へ同一の入力を導入し、各継電器要素個別に整定変
更を可能とする場合、従来は第8図の回路構成が実用さ
れている。図において、1は変成器、2a〜2cは整定切換
回路、3a〜3cは検出回路である。近年、継電器機能の高
度化の要求に対し、例えば高調波対策用フイルタなどの
入力回路を検出回路の前に設ける必要が生じており、従
来の整定回路を用いると、第9図に示すように入力回路
4a〜4cは検出回路3a〜3cと同じ個数だけ必要となる。
In the case where the same input is introduced to a plurality of relay elements (detection circuits), such as a distance relay, and the setting of each relay element can be individually changed, the circuit configuration shown in FIG. 8 is conventionally used. In the figure, 1 is a transformer, 2a to 2c are settling switching circuits, and 3a to 3c are detection circuits. In recent years, in response to the demand for advanced relay functions, it has become necessary to provide an input circuit such as a filter for harmonic countermeasures in front of the detection circuit. If a conventional settling circuit is used, as shown in FIG. Input circuit
4a to 4c are required in the same number as the detection circuits 3a to 3c.

【考案が解決しようとする課題】[Problems to be solved by the invention]

しかしながら、この場合には、入力回路4a〜4cが検出
回路3a〜3cと同じ個数だけ必要となることから、継電器
の寸法が大形化し、コストが増大するという問題があっ
た。 そこで、本考案は、上述の欠点を除くため、複数個の
検出回路に共通に1つの入力回路を設置することが可能
である継電器整定回路を提供することを課題とする。
However, in this case, since the same number of input circuits 4a to 4c as the number of detection circuits 3a to 3c are required, there is a problem that the size of the relay is increased and the cost is increased. Therefore, an object of the present invention is to provide a relay setting circuit in which one input circuit can be commonly installed in a plurality of detection circuits, in order to eliminate the above-mentioned disadvantages.

【課題を解決するための手段】[Means for Solving the Problems]

このような課題を解決するために、本考案は、1つの
変成器の出力を整定し、複数個の継電器への入力とする
継電器整定回路において、前記変成器に接続された1つ
の入力回路と、該入力回路の出力を入力とし、相互に増
幅率の異なるn台の演算増幅器と、前記n台の演算増幅
器のそれぞれの出力を入力とし、粗整定を行う場合には
増幅率の大きな演算増幅器を選択し、微整定を行う場合
には増幅率の小さな演算増幅器を選択する出力するm
(m≧n)台の整定切り換え回路と、複数の入力端を有
し、前記m台の整定切り換え回路の出力を入力とする複
数の検出回路を備えることを特徴とする。
In order to solve such a problem, the present invention setstle an output of one transformer, and in a relay setting circuit for inputting to a plurality of relays, one input circuit connected to the transformer is provided. , The input of the output of the input circuit, n operational amplifiers having mutually different amplification factors, and the operational amplifier having the large amplification factor when the respective outputs of the n operational amplifiers are input and coarse settling is performed. Is selected, and when fine setting is performed, an operational amplifier having a small amplification factor is selected.
(M ≧ n) setting switching circuits, and a plurality of detection circuits having a plurality of input terminals and receiving outputs of the m setting switching circuits as inputs.

【作用】[Action]

本考案の成因について説明する。 第2図は変成器1と、整定切換回路2aと、検出回路3a
とから構成されたこの種の継電器回路の基本構成を示
す。この第2図の基本継電器回路に対して、上述した如
く、高周波対策フイルタなどの入力回路4を設けると、
第3図に示す構成となる。 この第3図の回路に対して、検出回路を複数個(例え
ば、検出回路3a,3b)設けると、第4図の回路構成とな
る。この場合には、整定切換回路2aは複数個の検出回路
3a,3bに対して共通的に設けられているために、複数個
の検出回路3a,3bに対して個別に整定することができな
いという問題がある。 そこで、複数個の検出回路3a,3bに対して、複数個の
整定切換回路2a,2bおよび複数個の入力回路4a,4bを設け
ると、第5図の回路構成となる。この回路構成は上述し
た第9図と同じである。このようにすると、確かに、複
数個の検出回路3a,3bに対して個別に整定することがで
きるという点は確保される。しかしながら、この場合に
は、上述したように、入力回路4a,4bが検出回路3a,3bと
同じ個数だけ必要となることから、継電器の寸法が大形
化し、コストが増大するという新たな問題が派生する。 そこで、第6図に示すように、複数の検出回路に対し
て1つの入力回路を共通に設置するという構成が想起さ
れる。このようにすることにより、複数個の検出回路3
a,3bに対して確保されると共に、継電器の寸法が大形化
しコストが増大するという上述の問題が解消される。 ところで、第2図ないし第5図の構成においては、整
定切換回路2a,2bの引出線は変成器1の異なったタップ
に接続されており、従って変成器の変成比に応じた信号
を供給される。ところが、第6図の場合には、変成器1
の両端には入力回路4が直接接続されている。入力回路
4には変成器の変成比に相当する機能がない。従って、
第6図の回路構成の場合には、継電器の整定変更機能が
存在しないという非常に重要な問題が派生した。 そこで、本考案者は、複数個の検出回路に対して個
別に整定することができるという点を確保する、継電
器の寸法が大形化しコストが増大するということは回避
する、継電器は整定変更機能を有するという観点か
ら、日夜研究と実験を重ねた結果、第7図に示すよう
に、入力回路の後段に所望の増幅度を有する演算増幅器
5a〜5cを接続すれば良いことを見出した。 このような構成によれば、複数個の検出回路に対し
て個別に整定することができ、継電器の寸法が大形化
しコストが増大するということは回避され、継電器は
整定を変形可能である、継電器整定回路が得られる。
The origin of the present invention will be described. FIG. 2 shows a transformer 1, a settling switching circuit 2a, and a detection circuit 3a.
The basic configuration of this type of relay circuit composed of the following is shown. As described above, when the input circuit 4 such as a high frequency filter is provided for the basic relay circuit of FIG.
The configuration is as shown in FIG. When a plurality of detection circuits (for example, detection circuits 3a and 3b) are provided for the circuit of FIG. 3, the circuit configuration of FIG. 4 is obtained. In this case, the settling switching circuit 2a includes a plurality of detection circuits.
Since it is provided in common for 3a and 3b, there is a problem that it is not possible to settle individually for a plurality of detection circuits 3a and 3b. Therefore, when a plurality of setting switching circuits 2a, 2b and a plurality of input circuits 4a, 4b are provided for the plurality of detection circuits 3a, 3b, the circuit configuration shown in FIG. 5 is obtained. This circuit configuration is the same as in FIG. 9 described above. In this way, it is ensured that it is possible to settle the detection circuits 3a and 3b individually. However, in this case, as described above, since the same number of input circuits 4a and 4b as the number of detection circuits 3a and 3b are required, there is a new problem that the size of the relay is increased and the cost is increased. Derive. Therefore, as shown in FIG. 6, a configuration in which one input circuit is commonly installed for a plurality of detection circuits is recalled. In this manner, a plurality of detection circuits 3
In addition to the above-mentioned problems, the above-mentioned problem that the size of the relay is increased and the cost is increased is solved. 2 to 5, the leads of the settling switching circuits 2a and 2b are connected to different taps of the transformer 1, so that a signal corresponding to the transformation ratio of the transformer is supplied. You. However, in the case of FIG.
The input circuit 4 is directly connected to both ends. The input circuit 4 has no function corresponding to the transformation ratio of the transformer. Therefore,
In the case of the circuit configuration shown in FIG. 6, there is a very important problem that the function of changing the setting of the relay does not exist. Therefore, the inventor of the present invention secures the point that it can be set individually for a plurality of detection circuits, avoids the increase in size and cost of the relay, and the setting change function of the relay. As a result of repeated research and experiments from the viewpoint of having an operational amplifier, as shown in FIG.
We found that 5a-5c should be connected. According to such a configuration, it is possible to settle the plurality of detection circuits individually, it is possible to avoid that the size of the relay is increased and the cost is increased, and the setting of the relay can be changed. A relay settling circuit is obtained.

【実施例】【Example】

次に本考案の実施例を図面に基づいて詳細に説明す
る。 第1図は本考案の整定回路の実施例を示すものであ
る。入力は変成器1を介して入力回路4に与えられ、入
力回路4の出力側に継電器の整定に必要な増幅率で、か
つ増幅率の異なる演算増幅器5a〜5cを設ける。演算増幅
器5a〜5cの出力はそれぞれ整定切換え器2a〜2dを介して
検出回路3a,3bへ導かれる。 第1図において、演算増幅器5a〜5cの増幅率が順に小
さくなるものとし、整定切換え器2aで増幅器5aを選択
し、整定切換え器2bで増幅器5cを選択すれば、検出回路
3aに対して整定切換え器2aで粗整定を、整定切換え器2b
で微整定を行うことができ、結果として任意の整定が可
能となる。 また、検出回路3aにおいて検出回路内部の演算増幅回
路の抵抗R1とR2の関係をR2=10R1とすれば、整定切換え
器2aおよび整定切換え器2bで増幅器5aを選択すれば、そ
れぞれ10%オキ,1%オキの整定ができる。 なお、第1図において整定切換え回路(2a〜2d)は、
タップ板、ロータリースイッチ、ピンボードなど、切換
え手段の方法は問わず実現可能である。
Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of the settling circuit of the present invention. The input is provided to the input circuit 4 via the transformer 1, and the output side of the input circuit 4 is provided with operational amplifiers 5a to 5c having an amplification factor necessary for stabilizing the relay and having different amplification factors. The outputs of the operational amplifiers 5a to 5c are guided to the detection circuits 3a and 3b via the setting switches 2a to 2d, respectively. In FIG. 1, it is assumed that the amplification factors of the operational amplifiers 5a to 5c decrease in order, and the setting circuit 2a selects the amplifier 5a and the setting switch 2b selects the amplifier 5c.
Coarse setting with setting switch 2a for 3a, setting switch 2b
, Fine setting can be performed, and as a result, arbitrary setting is possible. Also, in the detection circuit 3a, if the relation between the resistors R1 and R2 of the operational amplifier circuit inside the detection circuit is R2 = 10R1, if the amplifier 5a is selected by the settling switch 2a and the setting switch 2b, 10% 1% oki can be set. In FIG. 1, the settling switching circuits (2a to 2d)
Any method of switching means such as a tap plate, a rotary switch, and a pin board can be realized.

【考案の効果】[Effect of the invention]

本考案によれば、複数の検出回路に対し1つの入力回
路を設けるだけで済むように構成したため、寸法、コス
トの低減、使用部品数の低減による信頼度の向上を可能
にした。
According to the present invention, since only one input circuit needs to be provided for a plurality of detection circuits, the reliability can be improved by reducing the size, cost, and the number of parts used.

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

第1図は本考案による整定回路を示す回路図、第2図は
本考案の応用回路を示す回路図、第3図ないし第7図は
本考案の成因について説明するための回路図、第8図は
従来の継電器整定回路を示す回路図、第9図は従来の整
定回路に入力回路を設けた回路図である。 1:変成器、2a〜2c:整定切換回路、3a〜3c:検出回路、4:
入力回路、5a〜5c:演算増幅器。
FIG. 1 is a circuit diagram showing a setting circuit according to the present invention, FIG. 2 is a circuit diagram showing an application circuit of the present invention, FIGS. 3 to 7 are circuit diagrams for explaining the origin of the present invention, FIG. FIG. 9 is a circuit diagram showing a conventional relay setting circuit, and FIG. 9 is a circuit diagram in which an input circuit is provided in the conventional setting circuit. 1: Transformer, 2a to 2c: Setting switching circuit, 3a to 3c: Detection circuit, 4:
Input circuit, 5a to 5c: operational amplifier.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】1つの変成器の出力を整定し、複数個の継
電器への入力とする継電器整定回路において、 前記変成器に接続された1つの入力回路と、 該入力回路の出力を入力とし、相互に増幅率の異なるn
台の演算増幅器と、 前記n台の演算増幅器のそれぞれの出力を入力とし、粗
整定を行う場合には増幅率の大きな演算増幅器を選択
し、微整定を行う場合には増幅率の小さな演算増幅器を
選択して出力するm(m≧n)台の整定切り換え回路
と、 複数の入力端を有し、前記m台の整定切り換え回路の出
力を入力とする複数の検出回路を備えることを特徴とす
る継電器整定回路。
1. A relay settling circuit for setting an output of one transformer and inputting the input to a plurality of relays, wherein one input circuit connected to the transformer and an output of the input circuit are input. , N having different amplification factors
Operational amplifiers, and the output of each of the n operational amplifiers as inputs, selecting an operational amplifier having a large amplification factor when performing coarse setting, and an operational amplifier having a small amplification factor when performing fine setting. And m (m ≧ n) setting switching circuits for selecting and outputting, and a plurality of detection circuits having a plurality of input terminals and receiving outputs of the m setting switching circuits as inputs. Relay setting circuit.
JP1989122481U 1989-10-19 1989-10-19 Relay setting circuit Expired - Lifetime JP2527657Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989122481U JP2527657Y2 (en) 1989-10-19 1989-10-19 Relay setting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989122481U JP2527657Y2 (en) 1989-10-19 1989-10-19 Relay setting circuit

Publications (2)

Publication Number Publication Date
JPH0265038U JPH0265038U (en) 1990-05-16
JP2527657Y2 true JP2527657Y2 (en) 1997-03-05

Family

ID=31370456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989122481U Expired - Lifetime JP2527657Y2 (en) 1989-10-19 1989-10-19 Relay setting circuit

Country Status (1)

Country Link
JP (1) JP2527657Y2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55125017A (en) * 1979-03-19 1980-09-26 Tokyo Electric Power Co Protective relay system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
発明協会公開技報公技番号82−416号

Also Published As

Publication number Publication date
JPH0265038U (en) 1990-05-16

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