JPH06351180A - Power system monitoring control apparatus - Google Patents

Power system monitoring control apparatus

Info

Publication number
JPH06351180A
JPH06351180A JP5137126A JP13712693A JPH06351180A JP H06351180 A JPH06351180 A JP H06351180A JP 5137126 A JP5137126 A JP 5137126A JP 13712693 A JP13712693 A JP 13712693A JP H06351180 A JPH06351180 A JP H06351180A
Authority
JP
Japan
Prior art keywords
transformer
power system
parallel
transformers
display
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
Application number
JP5137126A
Other languages
Japanese (ja)
Inventor
Seiichiro Hiraoka
誠一朗 平岡
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP5137126A priority Critical patent/JPH06351180A/en
Publication of JPH06351180A publication Critical patent/JPH06351180A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70Smart grids as climate change mitigation technology in the energy generation sector
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/22Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units

Landscapes

  • Control Of Electrical Variables (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PURPOSE:To simultaneously operate taps of transformers being operated in parallel without depending on judgment of an operator by automatically judging whether a plurality of transformers are operated in parallel or not with a system recognizing means. CONSTITUTION:In an electronic computer 15, a system recognizing means 15C judges whether a transformer is in the parallel operation or not on the basis of status information of the power system including circuit breakers, circuit disconnectors and transformers fetched by a data fetching means 15A and an information indicating the connecting conditions of circuit breakers, circuit disconnectors and transformers of the power system being preset to a power system constituting table in the memory device 17. An operation signal output means 15B operates taps of the transformers in the parallel operation on the basis of the information about transformers in the parallel operation judged by the system recognizing means 15C. Thereby, taps of transformers in the parallel operation can be operated without judgment by an operator.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は電力系統を構成する各遮
断器、断路器等の開閉状態情報に基いて、変圧器の並列
運転状態を把握し、電力系統を適切に監視・制御する電
力系統監視制御装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electric power for appropriately monitoring and controlling the electric power system by grasping the parallel operation state of the transformers based on the switching state information of each circuit breaker, disconnector, etc. constituting the electric power system. The present invention relates to a system monitoring control device.

【0002】[0002]

【従来の技術】一般的に、変圧器には変圧器巻線数を切
り替えるタップ装置(以下単に変圧器タップと称す)を
設け、変圧器タップを切り替える事により変圧器の巻線
比(以下単にタップ値と称す)を切替え、負荷を遮断せ
ずに電圧調整を行う事が出来る。
2. Description of the Related Art Generally, a transformer is provided with a tap device for switching the number of transformer windings (hereinafter simply referred to as a transformer tap), and the transformer winding ratio (hereinafter simply referred to as "transformer tap") is changed. The voltage can be adjusted without switching the load by switching the tap value).

【0003】変電所には、電圧安定のために、変圧器タ
ップを自動制御する自動電圧調整器(以下単にAVR装
置と称す)が設置されており、変電所における通常の運
転状態では、AVR装置により変圧器タップの自動制御
を行っている。
In order to stabilize the voltage, an automatic voltage regulator (hereinafter simply referred to as an AVR device) for automatically controlling a transformer tap is installed in the substation, and the AVR device is normally operated in the substation. Automatically controls transformer taps.

【0004】通常、変電所には複数の変圧器が設置され
ており、負荷の状態に応じて、必要な場合にはいくつか
の変圧器の並列運転を行う。並列運転を行う場合、それ
らの変圧器のタップ値が異なると変圧比が異なるため循
環電流が流れ、損失が増える等機器に悪影響を与える。
また、系統全体の安定化の面でも問題がある。
[0004] Usually, a plurality of transformers are installed in a substation, and some transformers are operated in parallel depending on load conditions. When parallel operation is performed, if the tap values of these transformers are different, the transformation ratio is different, so circulating current flows and the loss is increased, which adversely affects the equipment.
There is also a problem in terms of stabilization of the entire system.

【0005】従って、並列運転状態(以下単に並列状態
と称す)の変圧器は、常に同じタップ値で運転する必要
がある。また、従来型の電力系統監視制御装置では、電
力系統の各遮断器、断路器の開閉状態情報や変圧器タッ
プ値等の情報取り込みは、各装置から、変電所の中央に
設置してある制御盤へ取り込み、この制御盤から遠方監
視制御装置経由で、いくつかの変電所を集中して監視制
御する電子計算機へ取り込みを行っている。
Therefore, a transformer in a parallel operation state (hereinafter, simply referred to as a parallel state) must always operate with the same tap value. In addition, in the conventional power system monitoring and control device, the information such as the switching status information of each circuit breaker and disconnector of the power system and the tap value of the transformer are fetched from each device at the center of the substation. The data is taken into the control panel, and from this control panel via a remote monitoring and control device, it is being imported into a computer that centrally monitors and controls several substations.

【0006】電力系統監視制御装置からの操作信号は、
遠方監視制御装置経由、制御盤へ出力し、制御盤より各
遮断器、断路器、変圧器タップ等を動作させている。A
VR装置の定期点検等により、AVR装置からの自動制
御をロックし、運転員による変圧器タップの操作を行う
場合、電力系統監視制御装置からは、1つの変圧器タッ
プに対して操作信号を出力し、制御盤にて操作要求のあ
った変圧器と並列運転中の変圧器を判定し、該当する各
変圧器タップを同時に制御している。
The operation signal from the power system monitoring and control device is
It outputs to the control panel via the distant monitoring control device, and the control panel operates each circuit breaker, disconnector, transformer tap, etc. A
When the automatic control from the AVR device is locked by the periodic inspection of the VR device and the transformer tap is operated by the operator, the power system monitoring control device outputs an operation signal to one transformer tap. Then, the control panel determines which transformer has been requested to operate and which transformer is operating in parallel, and controls the corresponding transformer taps at the same time.

【0007】以下図面を用いて従来装置を説明する。図
9は、従来の方式による電力系統監視制御装置の構成図
である。各遮断器、断路器の開閉情報や変圧器タップ値
等の電力系統設備の状態情報は制御盤11に取り込まれ、
遠方監視制御装置子局(以下TC子局と称す)12A…12
Nより伝送路13A…13Nを経由して、遠方監視制御装置
親局(以下TC親局と称す)14へ入力する。TC親局14
へ入力した電力系統の状態情報は、データ取り込み手段
15Aで電子計算機15へ取り込まれ、操作卓16の表示器16
aへ表示出力する。
A conventional device will be described below with reference to the drawings. FIG. 9 is a block diagram of a conventional power system monitoring and controlling apparatus. Status information of power system equipment such as switching information of each circuit breaker, disconnecting switch and transformer tap value is taken into the control panel 11,
Remote monitoring controller slave station (hereinafter referred to as TC slave station) 12A ... 12
Input from N to the remote monitoring control device master station (hereinafter referred to as TC master station) 14 via transmission lines 13A ... 13N. TC parent station 14
The power system status information input to the
It is taken into the computer 15 at 15A, and the display 16 of the console 16
Display output to a.

【0008】また、操作指令入力手段15Dは、操作卓16
より設定された電力系統設備への操作信号を取込み、操
作信号出力手段15BからTC親局14、伝送器13A…13
N、TC子局12A…12N経由、制御盤11に出力する。制
御盤11はこの操作信号に従って、電力系統設備の操作を
行う。
The operation command input means 15D is a console 16
The operation signal to the power system equipment set by the above is taken in, and the operation signal output means 15B to the TC master station 14 and the transmitters 13A ... 13
Output to the control panel 11 via N, TC slave stations 12A ... 12N. The control panel 11 operates the power system equipment according to this operation signal.

【0009】ここで、電力系統監視制御装置18は、電子
計算機15、操作卓16、記憶装置17で構成される。AVR
装置19は、電圧安定化のために設置され、自動的に各変
圧器タップの制御を行うものである。AVR装置19につ
いては、すでに公知のものであり、詳しい説明は省略す
る。
Here, the power system supervisory control device 18 is composed of an electronic computer 15, a console 16 and a storage device 17. AVR
The device 19 is installed for voltage stabilization and automatically controls each transformer tap. Since the AVR device 19 is already known, detailed description is omitted.

【0010】ここで、AVR装置19の定期点検等の理由
により、AVR装置19からの自動制御をロックし、変圧
器タップの操作を電子計算機15から行う場合、代表の変
圧器へタップ操作信号を出力する事によって、制御盤11
にて操作要求のあった変圧器と並列運転中の変圧器を判
定し、該当する各変圧器タップを同時に制御している。
並列運転中の変圧器であることの判定は、変圧器の2次
側が同一系統につながれていることで行う。
Here, when the automatic control from the AVR device 19 is locked and the operation of the transformer tap is performed from the electronic computer 15 for the reason such as the periodic inspection of the AVR device 19, the tap operation signal is sent to the representative transformer. By outputting, control panel 11
Judge the transformer that has been requested to operate and the transformer that is operating in parallel, and simultaneously control the corresponding transformer taps.
The determination that the transformers are operating in parallel is made by the secondary side of the transformers being connected to the same system.

【0011】[0011]

【発明が解決しようとする課題】近年の各制御装置の分
散化技術の発展に伴い、遠方監視制御装置および制御盤
の分散化も進み、中央に制御盤を設置せず、送電線、母
線、変圧器等の設備単位に分散した遠方監視制御装置お
よび制御盤が採用されるようになってきた。
With the recent development of the decentralization technology of each control device, the distant monitoring control device and the control panel are also becoming decentralized, and the control line is not installed in the center, but the transmission line, the busbar, Far-distance monitoring and control devices and control panels distributed in equipment units such as transformers have been adopted.

【0012】遠方監視制御装置および制御盤が分散した
構成では、当然に制御盤は送電線、母線、変圧器等の
内、該当する1つの設備のみを監視制御の対象とするた
め、従来型構成の制御盤で実施していた2次側が同一系
統につながれているか否かといった並列運転中判定がで
きなくなり、運転員の判断により、個々の変圧器タップ
の操作を行わなければならなくなった。
In the structure in which the distant monitoring control device and the control panel are dispersed, the control panel naturally targets only one of the relevant equipments among the power transmission line, the bus bar, the transformer, etc., and therefore the conventional configuration. It became impossible to judge whether or not the secondary side was connected to the same system, which was carried out by the control panel of the above, during the parallel operation, and it was necessary for the operator to operate each transformer tap.

【0013】このように、遠方監視制御装置および制御
盤が分散した構成での電力系統監視制御装置からの変圧
器タップの操作は、運転員の判断により並列運転中の変
圧器を把握し、並列運転中の変圧器タップを個々に操作
しなければならないという問題がある。
As described above, the operation of the transformer taps from the power system supervisory control device in the configuration in which the remote monitoring control device and the control panel are dispersed is performed by the operator's judgment by grasping the transformers in parallel operation and There is a problem that the transformer taps that are in operation must be individually operated.

【0014】並列運転中の変圧器のタップを個々に操作
すると、一時的に並列運転中の変圧器タップの均衡が崩
れ、電圧安定化の面でも問題がある。本発明の目的は、
上記課題を解決し、並列運転中の変圧器タップの操作
を、運転員の判断に頼ることなく行うことのできる電力
系統監視制御装置を提供しようとするものである。
When the taps of the transformers in parallel operation are individually operated, the balance of the transformer taps in parallel operation is temporarily lost, and there is a problem in terms of voltage stabilization. The purpose of the present invention is to
It is an object of the present invention to solve the above problems and provide a power system monitoring and control device that can operate a transformer tap during parallel operation without resorting to the judgment of an operator.

【0015】[0015]

【課題を解決するための手段】本発明は、上記の課題を
解決するため、電力系統を構成する各遮断器、断路器等
の開閉状態や変圧器タップ値等の信号を取り込むデータ
取り込み手段と、各遮断器、断路器等の開閉状態や変圧
器タップ値等の系統状態を表示する表示手段と、操作卓
から運転員の指示により各遮断器、断路器等の開閉状態
や変圧器タップへの操作信号を出力する操作信号出力手
段とを有する電力系統監視制御装置において、複数の変
圧器が並列運転を行っているか否かを判定する系統認識
手段を有し、並列状態の各変圧器タップを同時に操作す
ることを特徴としている。
In order to solve the above problems, the present invention provides a data fetching means for fetching signals such as the open / closed states of circuit breakers, disconnectors, etc., which compose the power system, and transformer tap values. Display means for displaying the open / closed status of each circuit breaker, disconnector, etc., and the system status such as the transformer tap value, and the open / closed status of each circuit breaker, disconnector, etc., and the transformer tap according to operator instructions from the operator console. In a power system supervisory control device having an operation signal output means for outputting the operation signal of, a system tapping means for judging whether or not a plurality of transformers are operating in parallel is provided, and each transformer tap in a parallel state It is characterized by operating simultaneously.

【0016】[0016]

【作用】従って、上記のような構成の電力系統監視制御
装置にあっては、複数の変圧器が並列運転を行っている
か否かの判定を系統認識手段により自動的に行い、操作
員の判断に頼ることなく、並列状態の各変圧器タップを
同時に繰作することが可能となる。
Therefore, in the electric power system monitoring and controlling apparatus having the above-mentioned structure, the system recognizing means automatically determines whether or not a plurality of transformers are operating in parallel, and the operator judges. It is possible to operate the transformer taps in parallel at the same time without depending on.

【0017】[0017]

【実施例】以下本発明の一実施例を図1、図2、図3お
よび図4を参照して説明する。図1は本発明による電力
監視制御装置の構成例を示すもので、図9と同一部分は
同一符号を付してその説明を省略し、ここでは異なる部
分について述べる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3 and 4. FIG. 1 shows an example of the configuration of a power monitoring and control apparatus according to the present invention. The same parts as those in FIG. 9 are designated by the same reference numerals and the description thereof will be omitted.

【0018】図1では、制御盤11A…11NおよびTC子
局12A…12Nは、送電線、母線、変圧器等の設備単位に
分散した構成である。電子計算機15は、複数の変圧器が
並列運転を行っているか否かを判定する系統認識手段15
Cを新たに備えている。AVR装置19は分散した各制御
盤11A…11Nへ接続している。
In FIG. 1, the control panels 11A ... 11N and the TC slave stations 12A ... 12N are distributed in equipment units such as a power transmission line, a bus, and a transformer. The computer 15 is a system recognition means 15 for determining whether or not a plurality of transformers are operating in parallel.
Newly equipped with C. The AVR device 19 is connected to each of the distributed control panels 11A ... 11N.

【0019】また、電力系統の一構成例を図4に示す。
本実施例では、TC親局14に収集された各遮断器、断路
器等の状態情報を電子計算機15に取り込んで、系統認識
手段15Cにて複数の変圧器が並列運転を行っているか否
かを判定し、並列状態にある各変圧器タップを同時に操
作する事が出来る。
FIG. 4 shows a structural example of the power system.
In this embodiment, the status information of each circuit breaker, disconnector, etc. collected in the TC master station 14 is taken into the computer 15, and whether or not a plurality of transformers are operating in parallel by the system recognition means 15C. It is possible to operate the transformer taps in parallel at the same time.

【0020】図2は、電力系統の各遮断器、断路器、変
圧器等のつながり状態の情報を保存する電力系統構成テ
ーブルの例を示している。これらのテーブルは記憶装置
17内に記憶される。そのテーブルには電力系統を構成す
る各送電線、母線、母線連絡、変圧器等に付いての各情
報が設定されている。その内容を以下に説明する。
FIG. 2 shows an example of a power system configuration table that stores information on connection states of circuit breakers, disconnectors, transformers, etc. of the power system. These tables are storage
Stored in 17. In the table, information is set for each transmission line, busbar, busbar connection, transformer, etc. that make up the power system. The contents will be described below.

【0021】(a)送電線情報テーブルには、各送電線
毎に送電線遮断器、送電線断路器、送電線の引き出し口
の断路器および接続母線の情報が設定されており、
(b)母線情報テーブルには、各母線毎に接続する送電
線、母線連絡、変圧器の情報が設定されており、(c)
母線連絡情報テーブルには、各母線連絡毎に遮断器、断
路器および接続母線の情報が設定されており、(d)変
圧器情報テーブルには、各変圧器毎に1次、2次それぞ
れの遮断器、引き出し口の断路器および接続母線の情報
が設定されている。
(A) In the transmission line information table, information about the transmission line breaker, the transmission line disconnector, the disconnector at the outlet of the transmission line, and the connection bus bar is set for each transmission line.
(B) The busbar information table contains information on the transmission lines, busbar connections, and transformers that are connected to each busbar, and (c).
The busbar contact information table contains information on circuit breakers, disconnectors, and connecting busbars for each busbar contact. (D) The transformer information table lists the primary and secondary transformers for each transformer. Information on the circuit breaker, the disconnector at the outlet, and the connecting bus bar is set.

【0022】計算機15において、系統認識手段15Cは、
データ取り込み手段15Aにより取り込んだ電力系統の各
遮断器、断路器、変圧器等の状態情報と、記憶装置17内
の電力系統構成テーブル(a)〜(d)に設定されてい
る電力系統の各遮断器、断路器、変圧器等のつながり状
態の情報に基づいて、並列運転を行っている変圧器か否
かの判定を行う。操作信号出力手段15Bは、前記系統認
識手段15Cで判定した並列運転中の変圧器情報に基づい
て、並列運転中の変圧器タップの操作を行う手段であ
る。
In the computer 15, the system recognition means 15C is
Status information of each circuit breaker, disconnector, transformer, etc. of the power system captured by the data capturing means 15A and each of the power systems set in the power system configuration tables (a) to (d) in the storage device 17. Based on the information on the connection status of the circuit breaker, disconnector, transformer, etc., it is determined whether or not the transformer is operating in parallel. The operation signal output means 15B is means for operating the transformer taps in parallel operation based on the transformer information in parallel operation determined by the system recognition means 15C.

【0023】次に前記のように構成された電力系統監視
制御装置の作用について、図3に示すフローチャートに
基づいて説明する。運転員の操作によって操作卓16よ
り、遮断器、断路器、変圧器タップ等への操作指令が行
われると処理が開始する。
Next, the operation of the electric power system monitoring and controlling apparatus configured as described above will be described based on the flowchart shown in FIG. When an operator issues an operation command to the circuit breaker, the disconnector, the transformer tap, or the like from the console 16, the process starts.

【0024】ステップ31で操作指令の行われた設備情報
を取り込み、ステップ32では取り込んだ設備情報が変圧
器のものであるか否かの判定を行い、変圧器の情報であ
ればステップ33へ進み、変圧器以外の設備情報であれば
通常の操作指令と判定してステップ39へ進む。
In step 31, the equipment information for which the operation command has been issued is fetched, and in step 32 it is judged whether or not the fetched equipment information is that of a transformer. If it is transformer information, the operation proceeds to step 33. If it is equipment information other than the transformer, it is determined to be a normal operation command and the process proceeds to step 39.

【0025】ステップ33では、記憶装置17内の電力系統
構成テーブルを取り出しステップ34へ進み、ステップ34
では、電力系統構成テーブルに設定されている電力系統
の各遮断器、断路器、変圧器等のつながり状態の情報
と、データ取り込み手段15Aにより、TC親局14から取
り込んだ各遮断器、断路器の開閉情報を基に、操作指令
の出された変圧器が並列運転を行っているか否か、およ
び並列運転を行っている場合はどの変圧器が並列である
かについて判定し、ステップ35へ進む。
In step 33, the power system configuration table in the storage device 17 is fetched and the process proceeds to step 34, where step 34
Then, information on the connection state of each circuit breaker, disconnector, transformer, etc. of the power system set in the power system configuration table, and each circuit breaker and disconnector acquired from the TC master station 14 by the data acquisition means 15A. On the basis of the switching information of, whether or not the transformer for which the operation command has been issued is operating in parallel, and if it is operating in parallel, which transformer is in parallel is determined, and the process proceeds to step 35. .

【0026】ステップ35では、操作指令の出された変圧
器が並列運転を行っている場合は並列運転中の変圧器タ
ップ全てに操作指令を出力するためにステップ36へ進
み、並列運転を行っていない場合は通常の1つの機器に
対する操作指令と判定してステップ39へ進む。
In step 35, if the transformer for which an operation command has been issued is in parallel operation, the process proceeds to step 36 in order to output the operation command to all transformer taps in parallel operation, and parallel operation is being performed. If not, it is determined as an operation command for one normal device and the process proceeds to step 39.

【0027】ステップ36では、ステップ34で判定した並
列運転を行っている変圧器の数だけステップ37の処理を
繰り返し、ステップ37では、並列運転を行っている変圧
器に対して選択信号を順次出力して行く。
In step 36, the process of step 37 is repeated for the number of transformers operating in parallel determined in step 34, and in step 37, selection signals are sequentially output to the transformers operating in parallel. To go.

【0028】ここで、各遮断器、断路器、変圧器タップ
等の操作を行う場合、どの機器に対して操作を行うかの
信号をあらかじめ出力しておき、その後に操作指令を出
力するが、どの機器に対する操作かの信号を選択信号、
その後に出力する操作指令を操作信号という。
Here, when operating each circuit breaker, disconnecting switch, transformer tap, etc., a signal indicating which device is to be operated is output in advance, and then an operation command is output. Select signal for operation of which device,
The operation command output thereafter is called an operation signal.

【0029】ステップ38では、ステップ37で選択した並
列運転中の変圧器に対して一斉に操作信号を出力するも
のである。また、ステップ39では、操作指令の出された
1つの機器に対して選択信号を出力し、ステップ40で
は、ステップ39で選択した機器に対して操作信号を出力
するものである。
In step 38, operation signals are simultaneously output to the transformers selected in step 37 which are in parallel operation. In step 39, a selection signal is output to one device for which an operation command has been issued, and in step 40, an operation signal is output to the device selected in step 39.

【0030】ステップ34での判定を図4の系統図を使用
して説明する。図4は電力系統の中の一変電所の系統構
成例を示すものである。図4に示すように、変電所に
は、白抜きの丸いシンボルで表わした断路器41A〜41
Z、白抜きの四角いシンボルで表わした遮断器42A〜42
J、そのほか送電線43A〜43D、母線44A〜44D、母線
連絡45A、45B、変圧器46A〜46C等の設備がある。
The determination in step 34 will be described with reference to the system diagram of FIG. FIG. 4 shows a system configuration example of one substation in the power system. As shown in FIG. 4, at the substation, the disconnectors 41A to 41A represented by white, round symbols are shown.
Circuit breakers 42A to 42 represented by Z and white square symbols
J, and other facilities such as power transmission lines 43A to 43D, busbars 44A to 44D, busbar connections 45A and 45B, and transformers 46A to 46C.

【0031】例えば、変圧器46A(注目すやすいように
破線の枠で囲んだ)と並列運転中の変圧器を判定する場
合は、まず以下の方法で変圧器46Aの接続する母線を求
める。
For example, when determining a transformer in parallel operation with the transformer 46A (enclosed by a broken line frame for easy attention), a busbar to which the transformer 46A is connected is first obtained by the following method.

【0032】変圧器46Aの2次側の遮断器42G、断路器
41Q、41Rの開閉状態を取り込み、遮断器が「入」状態
かつ断路器が「入」状態の場合その断路器に接続する母
線を変圧器46Aの接続する母線とする。
Secondary circuit breaker 42G of transformer 46A, disconnector
Taking in the open / closed state of 41Q and 41R, when the breaker is in the "ON" state and the disconnector is in the "ON" state, the busbar connected to the disconnector is the busbar connected to the transformer 46A.

【0033】さらに、以下に述べる方法で、母線連絡
や、送電線および変圧器の引き出し口で変圧器46Aの接
続する母線に接続する母線を求め、これも変圧器46Aの
接続する母線とする。
Further, by the method described below, a busbar connection, or a busbar connected to the busbar connected to the transformer 46A at the transmission line and the outlet of the transformer is obtained, and this busbar is also connected to the transformer 46A.

【0034】前述の判定で得られた変圧器46Aの接続す
る母線につながる母線連絡45Bの遮断器42J、断路器41
O、41Pの開閉状態を取り込み、全て入り状態の場合、
母線連絡で接続する母線も変圧器46Aの接続する母線と
する。また、変圧器46Aの接続する母線につながる送電
線43Cの引き出し口の断路器41S、41Tの開閉状態を取
り込み、両方入りの場合、引き出し口で接続する母線も
変圧器46Aの接続する母線とする。
The circuit breaker 42J and the disconnector 41 of the busbar communication 45B connected to the busbar to which the transformer 46A is connected, obtained in the above-mentioned judgment.
Taking in the open / closed state of O and 41P, when all are in the open state,
The busbar connected by busbar connection is also the busbar connected to the transformer 46A. Further, the open / closed state of the disconnectors 41S, 41T of the outlet of the power transmission line 43C connected to the bus connected to the transformer 46A is taken in, and when both are inserted, the bus connected at the outlet is also the bus connected to the transformer 46A. .

【0035】送電線43Dの引き出し口の断路器41W、41
Xと、変圧器46A以外の変圧器46Bの引き出し口の断路
器41U、41Vと変圧器46Cの引き出し口の断路器41Y、
41Zからも同様に判定する。以上の判定で変圧器46Aの
接続する母線が得られる。
Disconnectors 41W, 41 at the outlet of the power transmission line 43D
X and the disconnector 41U of the outlet of the transformer 46B other than the transformer 46A, 41V and the disconnector 41Y of the outlet of the transformer 46C,
The same determination is made from 41Z. With the above judgment, the busbar to which the transformer 46A is connected is obtained.

【0036】次に、変圧器46Aの接続する母線と並列運
転中の変圧器の判定を行う。変圧器46Aの接続する母線
に2次側でつながる変圧器46A以外の変圧器46Bの遮断
器42H、引き出し口の断路器の内変圧器46Aの接続する
母線につながる断路器41Uまたは41Vの開閉状態を取り
込み、遮断器および断路器の両方が入りの場合、その変
圧器を変圧器46Aと並列運転中という。変圧器46Cにつ
いても同様に判定する。
Next, it is judged which transformer is operating in parallel with the bus to which the transformer 46A is connected. Switching state of the circuit breaker 42H of the transformer 46B other than the transformer 46A connected to the busbar connected to the transformer 46A, the disconnector 41U or 41V connected to the busbar connected to the transformer 46A of the outlet disconnector If both the breaker and the disconnector are turned on, the transformer is said to be in parallel operation with the transformer 46A. The same applies to the transformer 46C.

【0037】上記の判定の結果、変圧器46Aと、変圧器
46Aの接続している母線に接続している変圧器、すなわ
ち2次側が同一系統につながれている変圧器を変列運転
中とする。
As a result of the above judgment, the transformer 46A and the transformer
It is assumed that the transformer connected to the bus bar to which 46A is connected, that is, the transformer whose secondary side is connected to the same system, is in parallel operation.

【0038】このように電子計算機15の操作信号出力手
段15B、系統認識手段15C、操作指令入力手段15Dで図
3に示す処理手順に従って処理し、複数の変圧器が並列
運転を行っているか否かの判定を自動的に行い、並列状
態の各変圧器タップを同時に操作することが出来る。
As described above, the operation signal output means 15B, the system recognition means 15C, and the operation command input means 15D of the electronic computer 15 are processed according to the processing procedure shown in FIG. 3, and whether or not a plurality of transformers are operating in parallel. It is possible to operate the transformer taps in parallel at the same time by making the judgment automatically.

【0039】従って、並列運転中の変圧器タップの操作
を、操作員の判断に頼ることなく適切に行うことが可能
となる。 (他の実施例1)上述した実施例では、並列運転中の変
圧器タップの判定を自動的に行い、並列状態の各変圧器
タップを同時に操作する装置を説明したが、本発明はこ
れのみに限定されるものではなく、図1の如く操作卓16
の近傍に各変圧器の運転状態を表示する表示器20を新た
に設けて、並列状態の各変圧器タップを同時に操作する
際に、系統認識手段での判定結果、すなわちどの変圧器
が並列運転中であるかを表示するように構成してもよ
い。
Therefore, it is possible to properly operate the transformer taps during the parallel operation without depending on the judgment of the operator. (Other Embodiment 1) In the above-described embodiment, the device for automatically determining the transformer taps in parallel operation and operating the transformer taps in parallel at the same time has been described, but the present invention is only this. The operation console 16 is not limited to the one shown in FIG.
A new display device 20 for displaying the operating status of each transformer is provided near, and when operating the transformer taps in parallel at the same time, the judgment result by the system recognition means, that is, which transformer operates in parallel It may be configured to display whether it is in progress.

【0040】この場合、系統認識手段の処理に若干の機
能が付加される。即ち、図5中系統認識手段15′で示す
ようにステップ34a、34bを付加することにより、ステ
ップ34bでどの変圧器が並列運転中であるかを操作卓へ
表示出来るため、どの変圧器に対して操作しているかを
操作員が容易に認識でき、操作性が向上する。
In this case, some functions are added to the processing of the system recognition means. That is, by adding steps 34a and 34b as shown by the system recognition means 15 'in FIG. 5, it is possible to display which transformer is operating in parallel on the operator console in step 34b. The operator can easily recognize whether or not the operation is performed, and the operability is improved.

【0041】(他の実施例2)また更に、図6のフロー
チャートのように、図5のフローチャートに対して更に
ステップ34c、34dおよび34eを設けることにより、系
統認識手段15C″において、どの変圧器が並列運転中で
あるかを判定する(34a)際に、並列運転中の変圧器の
タップ値の比較(34b)を行うことにより、各タップ値
が異なっているか否かを新たな表示器20で表示すること
ができる。
(Other Embodiment 2) Furthermore, as shown in the flowchart of FIG. 6, steps 34c, 34d and 34e are added to the flowchart of FIG. When it is determined whether the taps are in parallel operation (34a), the tap values of the transformers in parallel operation are compared (34b) to determine whether or not the tap values are different. Can be displayed with.

【0042】並列運転中の変圧器のタップ値は、同じで
ある事が通常であるが、並列運転中の変圧器の各タップ
値が異なっていないかを表示する(34d)ことにより、
電圧安定化に関する異常状態の把握も容易にできる。
The tap values of the transformers in parallel operation are usually the same, but by displaying whether or not the tap values of the transformers in parallel operation are different (34d),
It is also possible to easily grasp an abnormal state related to voltage stabilization.

【0043】(他の実施例3)図7の如く、ステップ50
を介して系統認識手段15C′を常に動作させることによ
り、どの変圧器が並列運転中であるかについて常に表示
器20により表示することができる。
(Other Embodiment 3) Step 50 as shown in FIG.
By constantly operating the system recognizing means 15C 'via the, it is possible to always indicate by the indicator 20 which transformer is in parallel operation.

【0044】これにより、どの変圧器が並列運転中であ
るかを常の操作卓へ表示できるため、運転員による電力
系統の状態把握が容易になる。 (他の実施例4)上述の(他の実施例3)では、並列運
転中の変圧器タップの判定を自動的に行い、並列状態の
各変圧器タップを同時に操作するとともに、どの変圧器
が並列運転中であるかを常に操作卓へ表示する装置を説
明した。本実施例では図8のフローチャートで示す如
く、系統認識手段15C″を常時動作させることにより、
どの変圧器が並列運転中であるかを判定する際に、並列
運転中の変圧器のタップ値の比較も行うことにより、各
タップ値が異なっているか否かについても表示器20で表
示することができるようにしたものである。
As a result, since which transformer is operating in parallel can be displayed on the usual console, the operator can easily understand the state of the power system. (Other embodiment 4) In the above-mentioned (other embodiment 3), determination of the transformer taps in parallel operation is automatically performed, each transformer tap in the parallel state is simultaneously operated, and which transformer is The device that constantly displays on the operator's console whether or not they are in parallel operation has been described. In this embodiment, as shown in the flow chart of FIG. 8, the system recognition means 15C ″ is constantly operated,
When determining which transformers are in parallel operation, by comparing the tap values of the transformers in parallel operation, it is also possible to display on the display 20 whether or not each tap value is different. It was made possible.

【0045】並列運転中の変圧器のタップ値は、同じで
ある事が通常であるが、並列運転中の変圧器の各タップ
値が異なっていないかを表示することにより、電圧安定
化に関する異常状態の把握も容易にできる。
Normally, the tap values of the transformers in parallel operation are the same, but by displaying whether or not the tap values of the transformers in parallel operation are different, an abnormality relating to voltage stabilization is displayed. The state can be easily grasped.

【0046】(他の実施例5)上述の他の実施例1〜4
において、表示器20と表示器16aとを同一装置としても
よい。
(Other Embodiment 5) The above-mentioned other embodiments 1 to 4
In, the display 20 and the display 16a may be the same device.

【0047】[0047]

【発明の効果】以上述べたように、本発明によれば、系
統認識手段により、複数の変圧器が並列運転を行ってい
るか否かの判定を自動的に行い、並列状態の各変圧器タ
ップを同時に操作することができるので、遠方監視制御
装置および制御盤が分散した構成の変電所での運転員に
よる変圧器タップの操作を、運転員の判断および対象の
変圧器タップを個々に操作する事なく、自動的に並列運
転状態の変圧器タップを操作する事が可能な電力系統監
視制御装置を提供することができる。
As described above, according to the present invention, whether or not a plurality of transformers are operating in parallel is automatically determined by the system recognition means, and each transformer tap in the parallel state is detected. Since it is possible to operate the transformer taps at the same time, the operator can operate the transformer taps at the substation with a configuration in which the remote monitoring control device and the control panel are distributed. It is possible to provide a power system supervisory control device capable of automatically operating transformer taps in parallel operation without incident.

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

【図1】本発明による電力系統監視制御装置の一実施例
を示す構成図。
FIG. 1 is a configuration diagram showing an embodiment of a power system monitoring control device according to the present invention.

【図2】図1に示す実施例において記憶装置の各テーブ
ルに書き込まれるデータ内容の説明図。
FIG. 2 is an explanatory diagram of data contents written in each table of the storage device in the embodiment shown in FIG.

【図3】図1に示す実施例の作用を説明するためのフロ
ーチャート。
FIG. 3 is a flowchart for explaining the operation of the embodiment shown in FIG.

【図4】電力系統を構成する一部分である変電所の電力
系統構成例図。
FIG. 4 is an example of a power system configuration of a substation that is a part of a power system.

【図5】本発明の他の実施例1を説明するためのフロー
チャート。
FIG. 5 is a flowchart for explaining another embodiment 1 of the present invention.

【図6】本発明の他の実施例2を説明するためのフロー
チャート。
FIG. 6 is a flowchart for explaining another embodiment 2 of the present invention.

【図7】本発明の他の実施例3を説明するためのフロー
チャート。
FIG. 7 is a flowchart for explaining another embodiment 3 of the present invention.

【図8】本発明の他の実施例4を説明するためのフロー
チャート。
FIG. 8 is a flowchart for explaining another embodiment 4 of the present invention.

【図9】従来の電力系統監視制御装置の構成図。FIG. 9 is a configuration diagram of a conventional power system monitoring and control device.

【符号の説明】[Explanation of symbols]

11、11A、11B…制御盤 12A、12B…遠方監視制御装置子局 13A、13B…伝送路 14…遠方監視制御装置親局 15…電子計算機 15A…データ取り込み手段 15B…操作信号出力手段 15C、15C′、15C″…系統認識手段 15D…操作指令入力手段 16…操作卓 17…記憶装置 18…電力系統監視制御装置 19…AVR装置 41A〜41Z…断路器 42A〜42J…遮断器 43A〜43D…送電線 44A〜44D…母線 45A〜45B…母線連絡 46A〜46C…変圧器 11, 11A, 11B ... Control panel 12A, 12B ... Remote monitoring control device slave station 13A, 13B ... Transmission line 14 ... Remote monitoring control device master station 15 ... Computer 15A ... Data acquisition means 15B ... Operation signal output means 15C, 15C ′, 15C ″ ... system recognition means 15D ... operation command input means 16 ... console 17 ... storage device 18 ... power system monitoring control device 19 ... AVR device 41A-41Z ... disconnector 42A-42J ... circuit breaker 43A-43D ... sending Electric wires 44A-44D ... Bus 45A-45B ... Bus contact 46A-46C ... Transformer

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 遠方監視制御装置および制御盤が分散配
置された変電所に適用され、電力系統を構成する各遮断
器、断路器等の開閉状態や変圧器巻線数を切り替えるタ
ップ装置の巻線比値等の状態情報を取り込むデータ取り
込み手段と、各遮断器、断路器等の開閉状態や変圧器巻
線数を切り替えるタップ装置の巻線比等を表示する操作
卓の表示器と、この操作卓からの指示により各遮断器、
断路器等の開閉状態や変圧器巻線数を切り替えるタップ
装置への操作信号を出力する操作信号出力手段とを有す
る電力系統監視制御装置において、前記データ取り込み
手段から入力した各遮断器、断路器の開閉状態と各遮断
器、断路器、変圧器の系統構成を定義した系統構成テー
ブルとから複数の変圧器が並列運転を行っているか否か
を判定する系統認識手段と、並列運転状態の各変圧器の
巻線数を切り替えるタップ装置を同時に操作する手段と
を設けたことを特徴とする電力系統監視制御装置。
1. A winding of a tap device which is applied to a substation in which a remote monitoring control device and a control panel are arranged in a distributed manner, and which switches the open / close state of each circuit breaker, disconnector, etc. constituting the power system and the number of transformer windings. Data capture means for capturing status information such as line ratio value, and a display on the console for displaying the open / closed state of each circuit breaker, disconnector, etc. and the winding ratio of the tap device for switching the number of transformer windings. Each circuit breaker according to instructions from the console
In a power system monitoring and control device having an operation signal output means for outputting an operation signal to a tap device for switching the open / closed state of a disconnector or the number of transformer windings, each breaker or disconnector input from the data capturing means A system recognition means for determining whether or not a plurality of transformers are operating in parallel from the switching state of each and the system configuration table that defines the system configuration of each circuit breaker, disconnector, and transformer, and each of the parallel operating states. An electric power system monitoring and controlling apparatus comprising: a means for simultaneously operating a tap device for switching the number of windings of a transformer.
【請求項2】 並列状態の各変圧器の巻線数を切り替え
るタップ装置を同時に操作する際、系統認識手段での変
圧器並列運転状態の有無の判定結果を前記操作卓の表示
器又は新たに設けた表示器へ表示する手段を設けたこと
を特徴とする請求項1に記載の電力系統監視制御装置。
2. When simultaneously operating the tap devices for switching the number of windings of each transformer in the parallel state, the result of the determination of the presence or absence of the transformer parallel operation state by the system recognition means is displayed on the operator console or newly. The power system monitoring and controlling apparatus according to claim 1, further comprising means for displaying on a display device provided.
【請求項3】 系統認識手段での判定結果を操作卓の表
示器又は新たに設けた表示器へ表示する際、並列運転状
態の各変圧器の巻線数を切り替えるタップ装置の巻線比
をチェックし、各巻線比が異なっているか否かについて
も表示することを特徴とする請求項1に記載の電力系統
監視制御装置。
3. The winding ratio of a tap device for switching the number of windings of each transformer in parallel operation when displaying the determination result by the system recognition means on a display of a console or a newly provided display. The electric power system monitoring and controlling apparatus according to claim 1, wherein the electric power system monitoring control device is also checked to display whether or not each winding ratio is different.
【請求項4】 系統認識手段での判定結果を常に操作卓
の表示器又は新たに設けた表示器へ表示することを特徴
とする請求項1に記載の電力系統監視制御装置。
4. The electric power system monitoring and controlling apparatus according to claim 1, wherein the determination result by the system recognizing means is always displayed on a display of a console or a newly provided display.
【請求項5】 系統認識手段での判定結果を操作卓の表
示器又は新たに設けた表示器へ表示する際、並列運転状
態の各変圧器の巻線数を切り替えるタップ装置の巻線比
をチェックし、各巻線比が異なっているか否かを表示す
ることを特徴とする請求項1に記載の電力系統監視制御
装置。
5. The winding ratio of a tap device for switching the number of windings of each transformer in parallel operation when displaying the determination result by the system recognition means on a display of a console or a newly provided display. The electric power system monitoring and controlling apparatus according to claim 1, wherein the checking is performed and whether or not each winding ratio is different is displayed.
JP5137126A 1993-06-08 1993-06-08 Power system monitoring control apparatus Pending JPH06351180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5137126A JPH06351180A (en) 1993-06-08 1993-06-08 Power system monitoring control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5137126A JPH06351180A (en) 1993-06-08 1993-06-08 Power system monitoring control apparatus

Publications (1)

Publication Number Publication Date
JPH06351180A true JPH06351180A (en) 1994-12-22

Family

ID=15191434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5137126A Pending JPH06351180A (en) 1993-06-08 1993-06-08 Power system monitoring control apparatus

Country Status (1)

Country Link
JP (1) JPH06351180A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009201177A (en) * 2008-02-19 2009-09-03 Meidensha Corp Tap switching controller of transformer in substation
CN102570601A (en) * 2011-11-09 2012-07-11 南方电网科学研究院有限责任公司 Transformer substation control cabin technology
CN103412536A (en) * 2013-08-02 2013-11-27 中科天工电气控股有限公司 Box-type transformer substation remote monitoring system based on ZigBee-GPRS technology
CN103944271A (en) * 2014-05-07 2014-07-23 青岛海汇德电气有限公司 Intelligent transformer substation system based on Internet of Things technology and control method thereof
JP2017070012A (en) * 2015-09-28 2017-04-06 株式会社東芝 Monitoring control system and operation monitoring terminal
CN109347207A (en) * 2018-11-23 2019-02-15 中国南方电网有限责任公司超高压输电公司南宁局 A kind of telecontrol device state monitoring apparatus and method based on substation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009201177A (en) * 2008-02-19 2009-09-03 Meidensha Corp Tap switching controller of transformer in substation
CN102570601A (en) * 2011-11-09 2012-07-11 南方电网科学研究院有限责任公司 Transformer substation control cabin technology
WO2013067745A1 (en) * 2011-11-09 2013-05-16 南方电网科学研究院有限公司 Substation control center technology
CN103412536A (en) * 2013-08-02 2013-11-27 中科天工电气控股有限公司 Box-type transformer substation remote monitoring system based on ZigBee-GPRS technology
CN103944271A (en) * 2014-05-07 2014-07-23 青岛海汇德电气有限公司 Intelligent transformer substation system based on Internet of Things technology and control method thereof
JP2017070012A (en) * 2015-09-28 2017-04-06 株式会社東芝 Monitoring control system and operation monitoring terminal
WO2017056961A1 (en) * 2015-09-28 2017-04-06 株式会社東芝 Monitoring and control system, and operation monitoring terminal
CN109347207A (en) * 2018-11-23 2019-02-15 中国南方电网有限责任公司超高压输电公司南宁局 A kind of telecontrol device state monitoring apparatus and method based on substation

Similar Documents

Publication Publication Date Title
US6985784B2 (en) Configuring a centrally controlled circuit breaker protection system
JPH06351180A (en) Power system monitoring control apparatus
JPH10164775A (en) Breaker in distribution board and remote monitoring control system
JP4738257B2 (en) Power system protection system
JP5153314B2 (en) Power system monitoring and control system
WO2012152829A1 (en) Point-on-wave controller with at least three monitoring inputs
JP2783673B2 (en) Load control device
JPH05328455A (en) Distributed control system
JPH0312595A (en) Nuclear reactor stopping device outside central control room
JPH08182186A (en) Current ground display
JPH05300615A (en) Controller of receiving/distributing equipment
JPS6353774B2 (en)
JP2971186B2 (en) Automatic check system for switch of distribution system
JPH03245735A (en) Power distribution system operating device
CA2054486C (en) Reservation and interlocking in the operation of electric switching devices
Bolam et al. Experience in the application of substation co-ordinated control and protection with development trends in the standard control system open architecture
JPH0759220A (en) Operating condition display for gas insulated switchgear
JP2778789B2 (en) Power system monitoring and control equipment
JPH07322500A (en) Loop power distribution system
JP2000259231A (en) Monitoring control system for electric facilities of railroad
JPH1070854A (en) Distribution control for receiving and distributing facilities
JPH0646528A (en) Automatic bus isolation system
JPH06296335A (en) Power system monitor control equipment
JPH1094172A (en) Power system monitor controller
JPH0898436A (en) Supervisory controller for system