JPS58108924A - Wide current differential relay - Google Patents
Wide current differential relayInfo
- Publication number
- JPS58108924A JPS58108924A JP20748081A JP20748081A JPS58108924A JP S58108924 A JPS58108924 A JP S58108924A JP 20748081 A JP20748081 A JP 20748081A JP 20748081 A JP20748081 A JP 20748081A JP S58108924 A JPS58108924 A JP S58108924A
- Authority
- JP
- Japan
- Prior art keywords
- current
- section
- protection
- wide
- area
- 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
- Emergency Protection Circuit Devices (AREA)
- Interface Circuits In Exchanges (AREA)
- Relay Circuits (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】
本発明は電力系統におけるループ系送電線の保１ｄｉＫ
係わる広域電流差動リレーに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for maintaining loop power transmission lines in power systems.
The present invention relates to a related wide-area current differential relay.
従来第１図に示すようなループ系送電線の保護は区間ａ
Ｅｃ１．８ｇＣ２，ＩＩＣＭ、１Ｉｃｃ４，１Ｅｃ５Ｆ
）夫々の両端に設置したパイロットワイヤ・リレー虱に
よって保護を行なっていたが、その場合歯止めリレーと
しては、送電端より送られてくる地絡過電圧リレー（Ｏ
ＶＧ） ＠報と変圧器！０２次側に設置された不足電圧
リレー（υｖ）情報を利用していた。また後備保護とし
ては送電端における短絡距離リレー（４４ｇ）、地絡方
向リレー（６７Ｇ）を用いていた。ところが前記の歯止
めリレーである変圧器２次側不足電圧リレー（υｖ藁１
電力需要家Ｔｊ％に設置されており、保守点検を送電者
が行なうことかできず、送電線の保護を行なうに当りそ
の信頼性を管理できないという欠点があった。また後備
保護としての短絡距離リレー（４４ｇ）や地絡方向リレ
ー（６７ａ）は送電端に設置されるものであり、故障区
間のしゃ断器が動作しなかった場合、ループ系が全停と
なる保護しかできない、という欠点があった。Conventionally, loop power transmission lines as shown in Figure 1 were protected in section a.
Ec1.8gC2, IICM, 1Icc4, 1Ec5F
) Protection was provided by pilot wire relays installed at both ends of each terminal.
VG) @ News and transformer! The undervoltage relay (υv) information installed on the secondary side was used. In addition, as back-up protection, a short-circuit distance relay (44g) and a ground-fault direction relay (67G) were used at the power transmission end. However, the secondary side undervoltage relay of the transformer (υv straw 1), which is the pawl relay mentioned above,
They are installed at power consumers Tj%, and have the drawback that the power transmitter cannot perform maintenance and inspection, and cannot manage the reliability of the power transmission lines in order to protect them. In addition, the short-circuit distance relay (44g) and ground fault direction relay (67a) are installed at the power transmission end as back-up protection, and if the circuit breaker in the fault section does not operate, the loop system will be completely stopped. The drawback was that it could only be done.
本発明は、以上の欠点にかんがみなされたもので、ルー
プ系送電線の需要家附近の電流データな１個所に集め複
数個の区間差動リレーを構成し、これらのリレーの判定
によって、事故区間のしゃ断器にしゃ断指令を発する広
域電流差動リレーを提供することを目的とする、
以下に本発明の一実施例な第２図、謳３図により説明す
る。第２図は、ループ系送配電線のしゃ断器および清報
抽出用変流器設置図で、Ｉ！ａにおいてｌＩＣ１〜ｌｆ
ｆ１Ｃ５は区間を示し、Ｃ１１−Ｃ１１綽ｊ！区間ノ両
端に設置されたしゃ断器である。ト１は夫々変流器で、
そのうちＣ，？、１．Ｌは需要家側の電流情報を抽出゛
するためのものであり、他は区間の両噛電ｆｉｌ１１報
抽出用である＃ ＩＦＩ−ＲＦＩは夫々各区間保護用の
電流差動リレーで、夫々各区間用の変流器によって検出
された両端清報を導入して各区間個々の電流差を検出す
る＠ ＩＦＩＩ〜ＩＬＦ１４は広域保護用の電流差動リ
レーで、ｌ翔は区間１１ｃｃ１．２用、鼠ｙ謔は区間ｔ
ｉｘｃ２ａ５用、１ｈ１ｍは区間１１Ｃ５，４用、冨Ｆ
１４は区間畠ｘｃ４ｓｓ用のものである。各リレーＩＦ
ｌ亡ｌｙ鏝は夫々隣り合う区間をまたがって保護するた
めに設けられたものであるから、例えば区間Ｓ鳶ｃ１．
２の広域保護用電流差動リレー１１ｙｕの場合は、区間
５ＥＣ１に設けられた変流器Ａと、区間ａｚｃ２ｒｃ設
けられた変流器１と、これら各区間１１ｃ１．２より供
給される需要側変流器Ｃより清報を夫々導入している。The present invention has been made in view of the above-mentioned drawbacks, and consists of a plurality of section differential relays that collect current data near consumers on a loop power transmission line in one place, and determine whether fault sections are detected based on the judgments of these relays. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention, which aims to provide a wide-area current differential relay that issues a cutoff command to a circuit breaker, will be described below with reference to FIGS. 2 and 3. Figure 2 is a diagram showing the installation of circuit breakers and current transformers for extracting clear information on loop power transmission and distribution lines. lIC1~lf in a
f1C5 indicates the section, C11-C11! This is a circuit breaker installed at both ends of the section. 1 is a current transformer,
Among them, C? , 1. L is for extracting current information on the consumer side, and the others are for extracting information on both electric currents in the section.# IFI-RFI are current differential relays for protecting each section, and each The current difference in each section is detected by introducing the current difference between both ends detected by the current transformer for the section. @ IFII to ILF14 are current differential relays for wide area protection, and the l-sho is for the section 11cc1.2. Nezumi is section t
For ixc2a5, 1h1m is for section 11C5,4, TomiF
14 is for section Hatake xc4ss. Each relay IF
Since the trowels are provided to protect each adjacent section, for example, section S c1.
In the case of the current differential relay 11yu for wide area protection No. 2, the current transformer A provided in the section 5EC1, the current transformer 1 provided in the section azc2rc, and the demand side transformer supplied from each of these sections 11c1.2. Fresh information has been introduced from Nagasaki C.
以下他のリレーＩＬｙｔｓ〜−７１４も同様な方法で構
成されている０以上のような各電流差動リレー冨Ｆｌ−
５ＬＦｌおよび１７１１〜ＩＩＦ１４は例えば送電端の
変電所に設置され、夫々パイロットケーブルまたは光ケ
ーブル等を介し℃各車流器より清報を導入する。第３図
は区間トリ、プ用の回路図の一例で、同図は区間ＩＫｃ
Ｓ用のものである。第２図の区間１１０３の保護は次
のよう°に行なわれる。先づ主検出リレーに当る区間ａ
１８ｃ ３の電流差動リレー１ｖｙｓが動作するが、そ
の出力ＳＩＫ信号だけでは、しゃ断器ＣＢｌ、Ｃ１ｌ・
はしゃ断されない、更に区間ａ罵ｃ２．３用の広域電流
差動リレーＲＦＩｍと区間ｓｚｃ ３，４用の広域電流
差動リレーＩＦ１＄が共に動作し、両すレー鳳ｙｓｓと
幻謁の出力信号のＡＮＤ信号ａｙｚの発生をみて始めて
しゃ断信号８１がしゃ断器ａｌｌｉ、ｃ！１−へ送られ
、しゃ断器ＣＢＩ、ＣＢ−がしゃ断され、主保護が行な
われる。他方前記ＢＹＺ信号を遅延させたしゃ断信号Ｉ
３がしゃ断器ＣＢＩ、ＣＢ、へ送られ、しゃ断器ＣＢＩ
、Ｃ−がしゃ断さね、後備保護が行なわれる。即ち、ｌ
翔＊１Ｆ１１の広域用電流差動リレーを主保臘の歯止め
用と後備保護用として利用する。自他の区間に対しても
同様の保護が可能なことは勿論である０以上から明らか
なように需要家変圧器２次側の不足電圧リレーを使用す
ることなく讃止め構成かできるためループ送配電線の保
守点検を送電者が充分に管理できる。Below, the other relays ILyts~-714 are configured in a similar manner.
5LFl and 1711 to IIF14 are installed, for example, in a substation at the power transmission end, and introduce fresh information from each ℃ each on-vehicle flow device via a pilot cable or an optical cable, respectively. Figure 3 is an example of a circuit diagram for section tripping, and the same figure shows section IKc.
This is for S. Protection of section 1103 in FIG. 2 is performed as follows. First, section a corresponding to the main detection relay
The current differential relay 1vys of 18c3 operates, but its output SIK signal alone can cause the circuit breakers CBl, C1l,
In addition, the wide-area current differential relay RFIm for the section a and c2.3 and the wide-area current differential relay IF1$ for the sections szc3 and 4 operate together, and the output signals of both relays yss and phantom are not cut off. It is only after seeing the generation of the AND signal ayz that the cutoff signal 81 is activated by the breaker alli, c! 1-, the circuit breakers CBI and CB- are cut off, and main protection is performed. On the other hand, a cutoff signal I is obtained by delaying the BYZ signal.
3 is sent to the breaker CBI, CB, and the breaker CBI
, C- are not cut off, backup protection is provided. That is, l
The Sho*1F11 wide-area current differential relay is used for main protection and backup protection. It goes without saying that similar protection is possible for the own and other sections.As is clear from 0 or more, the loop transmission is Power transmitters can fully manage maintenance and inspection of distribution lines.
また広域電流差動リレーを後備保護用として使用するこ
とＫより停電区間を最小に留めることができる。更に広
域電流差動リレーを複数段かませることにより信頼性が
大きく向上する。また需要家母線の保護の歯止め、後備
保穫としても使用かできる。Furthermore, by using a wide area current differential relay as backup protection, the power outage section can be kept to a minimum. Furthermore, by using multiple stages of wide-area current differential relays, reliability is greatly improved. It can also be used as a brake to protect the customer busbar and as a back-up protection.
以上のように本発明は複数の送電区間に電力需要家が接
続されるものを複数ループ系に接続した送配電線の線路
保ｓＶＣおいて、前記各区間の両端に夫々変流器を設け
、これら各区間に設けられた変流器よりの電流清報を夫
々導入する区間保護用の電流差動り゛レーを設けると共
に１前記各惰侠家側に夫々変流器を設け、この変流器よ
り得られた各電流情報とこの各需要家側に電力を供給す
る隣り合った両区間の電流情報とを夫々導入する広域保
護用電流差動リレーを設け、これら各広域保護用リレー
と前記各区間保護用リレーとを１個所に集めこれらのリ
レーの判定に基づいて事故区間に係るしゃ断器にしゃ断
指令を与えるものである故、電力需要家の保護設備に関
係なく、ループ系送配電線の保守点検管理を送電者が実
施でき、高い信頼性のある保護を確立できるという優れ
た効果を有する。As described above, the present invention provides a line maintenance SVC for a transmission and distribution line in which power consumers are connected to a plurality of transmission sections in a plurality of loop systems, and a current transformer is provided at both ends of each section, respectively. In addition to providing a current differential relay for protecting the sections that introduces the current information from the current transformers installed in each of these sections, a current transformer is also provided on each of the above-mentioned coasters, and this current transformer is installed. A wide-area protection current differential relay is provided that introduces each current information obtained from the device and the current information of both adjacent sections that supply power to each consumer side, and these wide-area protection relays and the above-mentioned Since the protection relays for each section are gathered in one place and a cutoff command is given to the breaker related to the fault section based on the judgment of these relays, the loop system transmission and distribution line is This has the excellent effect of allowing the power transmitter to carry out maintenance and inspection management, and to establish highly reliable protection.
第１図は、従来のループ系送配電線の保護方式の構成図
、第２図は本発明の一実施例で、しゃ断器および情報抽
出用変流器の設置図、第３図は本発明の一実施例を示す
トリップ回路図である。
ａｌｃ１〜１ｌＥｃ５は区間、ｌはパイロットワイヤリ
レー、Ｔは変圧器、υは電力需要家、 ＣＢＩ〜ＣＢＩ
・はしゃ断器、八〜Ｎは電流清報抽出用変流器＊ ＲＦ
Ｉ−ＲＦＩは区間保護用電流差動リレー＃ ｌ１ｙｎ〜
１Ｆ１４は広域保−用電流差動リレー。
第１図
第２図Fig. 1 is a block diagram of a conventional protection system for loop power transmission and distribution lines, Fig. 2 is an embodiment of the present invention, and is an installation diagram of a circuit breaker and a current transformer for information extraction, and Fig. 3 is a diagram of the present invention. FIG. 3 is a trip circuit diagram showing an embodiment of the present invention. alc1 to 1lEc5 are sections, l is a pilot wire relay, T is a transformer, υ is a power consumer, CBI to CBI
- Breaker, 8 to N are current transformers for current signal extraction* RF
I-RFI is a current differential relay for section protection #l1yn~
1F14 is a current differential relay for wide area protection. Figure 1 Figure 2
Claims (1)
ープ系に接続した送配電線の線路保護において、前記各
区間の両端に夫々変流器を設け。 これら各区間に設けられた変流器よりの電流情報を夫々
導入する区間保護用の電流差動リレーを設けると共に、
前記各需要家側に夫々変流器を設け、この変流器より得
られた各電流情報とこの各＠要塞＠に電力を供給する隣
り合った両区間の電流情報とを夫々導入する広域保護用
電流差動リレーを設け、これら各広域保−用リレーと前
記各区間保幽用リド・とを１個所に集め、これらのリレ
ーの判定に基づいて事故区間に係るしゃ断器にしゃ断指
令を与えることを特徴とした広域電流差動リレー。[Claims] In line protection of a power transmission and distribution line in which power consumers are connected to a plurality of power transmission sections in a plurality of loop systems, a current transformer is provided at each end of each section. In addition to providing a current differential relay for section protection that introduces current information from current transformers installed in each section,
Wide-area protection in which a current transformer is installed on each customer side, and each current information obtained from the current transformer and current information of both adjacent sections that supply power to each @fortress are respectively introduced. These relays for wide area protection and the lids for each area protection are collected in one place, and based on the judgment of these relays, a breaker command is given to the breaker related to the accident area. A wide-area current differential relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20748081A JPS58108924A (en) | 1981-12-22 | 1981-12-22 | Wide current differential relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20748081A JPS58108924A (en) | 1981-12-22 | 1981-12-22 | Wide current differential relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58108924A true JPS58108924A (en) | 1983-06-29 |
| JPS6350940B2 JPS6350940B2 (en) | 1988-10-12 |
Family
ID=16540443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20748081A Granted JPS58108924A (en) | 1981-12-22 | 1981-12-22 | Wide current differential relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58108924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257722A (en) * | 1984-06-04 | 1985-12-19 | 株式会社明電舎 | Inspecting circuit of annular line system protecting device |
-
1981
- 1981-12-22 JP JP20748081A patent/JPS58108924A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257722A (en) * | 1984-06-04 | 1985-12-19 | 株式会社明電舎 | Inspecting circuit of annular line system protecting device |
| JPH0552125B2 (en) * | 1984-06-04 | 1993-08-04 | Meidensha Electric Mfg Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6350940B2 (en) | 1988-10-12 |
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