JP2728422B2 - Abnormal location system for gas insulation equipment - Google Patents
Abnormal location system for gas insulation equipmentInfo
- Publication number
- JP2728422B2 JP2728422B2 JP63058319A JP5831988A JP2728422B2 JP 2728422 B2 JP2728422 B2 JP 2728422B2 JP 63058319 A JP63058319 A JP 63058319A JP 5831988 A JP5831988 A JP 5831988A JP 2728422 B2 JP2728422 B2 JP 2728422B2
- Authority
- JP
- Japan
- Prior art keywords
- detector
- detectors
- gas
- abnormality
- location system
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電力用ガス絶縁機器の異常位置標定システム
に係り、特に少ない検出器で広範囲の変電所内の異常部
位を標定可能にできる電力用ガス絶縁機器の異常位置標
定システムに関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abnormal position locating system for a gas insulating device for electric power, and particularly to an electric power gas capable of locating an abnormal part in a wide range of substations with a small number of detectors. The present invention relates to an abnormal position locating system for insulating equipment.
従来のガス絶縁機器の異常検出技術としては、特開昭
53-72143及び特開昭61-108976に記載のようにガス絶縁
機器の各区画（単位毎）に検出器を配置し位置標定を行
うもの（特開昭53-72143号公報及び特開昭61-108976号
公報参照）や複数の検出器からの信号の時間変化を利用
したり（特開昭61-227609号公報参照）、58-24084のよ
うに信号の大きさの違いにより位置標定するもの（実開
昭58-24084号公報参照）がある。また、特開昭57-40323
のように不良原因と考えられる近傍に検出端子を設けて
おく方式（特開昭57-40323号公報参照）も考えられてい
る。これらの技術において、各区画毎に検出器を用いる
場合に大きな変電所では検出器の数が多くなり経済性の
点から問題になつている。As a conventional technology for detecting anomalies of gas insulated equipment,
As described in 53-72143 and JP-A-61-108976, a detector is arranged in each section (for each unit) of gas-insulated equipment to perform position location (JP-A-53-72143 and JP-A-61-89143). U.S. Pat. No. -108976), or using a time change of signals from a plurality of detectors (see Japanese Patent Application Laid-Open No. 61-227609), or position locating by a difference in signal magnitude as in 58-24084. (See Japanese Utility Model Laid-Open No. 58-24084). In addition, JP-A-57-40323
A method of providing a detection terminal in the vicinity of the cause of the failure as described above (see Japanese Patent Application Laid-Open No. 57-40323) has also been considered. In these techniques, when a detector is used for each section, the number of detectors is increased at a large substation, which is problematic in terms of economy.
また、実際に異常が発生した場合に各検出器からどの
ような出力信号が発生するかを知ることができれば異常
診断上非常に有効となる。Further, if it is possible to know what output signal is generated from each detector when an abnormality actually occurs, it is very effective in abnormality diagnosis.
しかし、上記した従来の方式においては、位置標定を
短時間に精度良く行う場合には、多数の検出器を取り付
ける必要がある。また、複数の検出器の検出信号の時間
差及び大きさにより位置標定を行う方式もあるが、ガス
絶縁機器の構成が複雑になる場合には処理判断が難しく
なる。However, in the above-described conventional method, it is necessary to attach a large number of detectors in order to accurately perform position location in a short time. There is also a method of performing position location based on the time difference and the magnitude of detection signals of a plurality of detectors. However, when the configuration of the gas insulation device is complicated, it is difficult to determine the processing.
本発明の目的は、少ない検出器で広範囲のガス絶縁機
器の異常部位の標定をできるようにすることにある。SUMMARY OF THE INVENTION An object of the present invention is to make it possible to locate an abnormal portion of a wide range of gas-insulated equipment with a small number of detectors.
上記目的は、接地装置、断路器、遮断器並びにこれら
を連結する母線等から構成されるガス絶縁機器の各部に
複数個の検出器を設置するとともに、該複数の検出器と
接続された演算装置を備えたガス絶縁機器の異常標定シ
ステムであって、前記演算装置が、前記複数の検出器の
位置と検出器により検出された信号レベルから各検出器
位置と各検出器毎の信号レベルを示す検出パターンを作
成するものであって、前記記憶装置に予め記憶され、模
擬故障を発生させて得られる各検出器位置と各検出器毎
の信号レベルを示す標準パターンと比較して異常発生位
置を標定することにより達成できる。The object is to install a plurality of detectors in each part of a gas insulated device including a grounding device, a disconnector, a circuit breaker, and a bus connecting them, and the like, and an arithmetic unit connected to the plurality of detectors. An abnormality locating system for a gas insulated device, comprising: the arithmetic unit indicates a position of each of the plurality of detectors and a signal level of each of the detectors based on a signal level detected by the detector. A detection pattern is created, and the abnormality occurrence position is stored in advance in the storage device, and is compared with each detector position obtained by generating a simulated fault and a standard pattern indicating a signal level of each detector. This can be achieved by orientation.
変電所で運用される様々な回路条件において、各接点
部の異常時の標準パターンを予め認識しておくことによ
り、実際に運転状態において異常が発生した場合、その
検出パターンに近いものを選ぶことにより位置標定が比
較的簡単に精度良く行える。複数検出器の出力信号のパ
ターンにより判定するため、少ない検出器でも高精度が
得られる。Under various circuit conditions operated in the substation, by pre-recognizing the standard pattern at the time of abnormality at each contact point, if an abnormality actually occurs in the operating state, select one that is close to the detected pattern Thus, the position can be relatively easily and accurately determined. Since the determination is made based on the patterns of the output signals of the plurality of detectors, high accuracy can be obtained even with a small number of detectors.
以下、本発明の一実施例を第１図により説明する。第
１図は変電所の一例を示す単線結線図であるが、ここで
は説明を容易にするため単相の場合として説明する。Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a single-line diagram showing an example of a substation, but here, a single-phase case will be described for ease of explanation.
変圧器100で昇圧された電力は遮断器301〜304,断路器
201〜213,母線601〜606を経てブツシング200より送電線
に送られる。これらの各部所には遮断及び断路された部
分の電荷を放電するための接地装置101〜112が設けられ
ている。また、送電線からの雷等の異常電圧の侵入に対
し変電所内の機器を保護するため、避雷器401〜403,異
常電流を検出するための変流器501〜508等も設けられて
いる。このような変電所の異常監視のため、各母線601
〜606の端部に検出器Ｓ1〜Ｓ8が取り付けられている。
検出器Ｓ1〜Ｓ8の出力信号は一括して入力処理装置10に
取り込まれ、検出信号に異常が認められない場合には表
示装置50にその旨が表示される。一方、万一異常値を示
した場合には、検出パターン30が算出され、前もつて蓄
えられている標準パターン20と比較され、最も類似度の
大きい標準パターン20により異常発生位置及びその大き
さが表示装置50に表示される。The power boosted by transformer 100 is applied to circuit breakers 301-304, disconnector
It is sent to the transmission line from busing 200 via 201-213 and buses 601-606. Each of these parts is provided with grounding devices 101 to 112 for discharging the electric charges in the cut and disconnected portions. Further, lightning arresters 401 to 403, current transformers 501 to 508 for detecting abnormal current, and the like are provided to protect equipment in the substation against intrusion of abnormal voltage such as lightning from a transmission line. To monitor such substation abnormalities, each bus 601
Detectors S 1 to S 8 are attached to the ends of.
The output signals of the detectors S 1 to S 8 are collectively taken into the input processing device 10, and if no abnormality is found in the detection signals, the fact is displayed on the display device 50. On the other hand, if an abnormal value is detected, the detection pattern 30 is calculated and compared with the previously stored standard pattern 20, and the abnormality occurrence position and its size are determined by the standard pattern 20 having the highest similarity. Is displayed on the display device 50.
第２図は検出パターンの例について示したものであ
る。この検出パターンは、後述する標準パターンと同様
に作成されるものであって、複数の検出器の位置と検出
器により検出された信号レベルから各検出器位置と各検
出器毎の信号レベルを示すパターンである。ａは第１図
の接地装置101の近傍のＡ点で異常が発生した場合、ｂ
は接地装置104近傍のＢ点、Ｃは接地装置112近傍のＣ
点、ｄは母線602において接地装置106と断路器209の間
のＤ点でそれぞれ異常が発生した場合の検出パターンを
示している。８個の検出器Ｓ1〜Ｓ8からの検出パターン
はそれぞれ特有のパターンを示しており、予め求められ
ている標準パターン20と比較することにより容易に位置
標定を行うことができる。FIG. 2 shows an example of a detection pattern. This detection pattern is created in the same way as a standard pattern described later, and indicates the position of each detector and the signal level of each detector from the positions of the plurality of detectors and the signal levels detected by the detectors. It is a pattern. a indicates that an abnormality occurs at point A near the grounding device 101 in FIG.
Is a point B near the grounding device 104, and C is a C near the grounding device 112.
Points d indicate detection patterns when an abnormality occurs at point D between the grounding device 106 and the disconnector 209 on the bus 602, respectively. The detection patterns from the eight detectors S 1 to S 8 each indicate a unique pattern, and the position can be easily located by comparing with the standard pattern 20 obtained in advance.
前述した標準パターンを予め得るためのフローを第３
図に示している。機器の現地据付が完了すると、変電所
内で運用される可能性のある全ての回路構成において、
接地装置や断路器や遮断器等の開閉装置を用い模擬故障
を発生させ、それぞれのケースにおける標準パターンを
決定する。すなわち、模擬故障により得られる、複数の
検出器の位置と検出器により検出された信号レベルから
各検出器位置と各検出器毎の信号レベルを示すパターン
を作成する。このパターンは、記憶装置である標準パタ
ーン収納装置20に蓄えられる。The flow for obtaining the standard pattern described above is described in the third section.
It is shown in the figure. Once on-site installation of the equipment is completed, in all circuit configurations that may be operated in the substation,
A simulated fault is generated using a switching device such as a grounding device, a disconnector, or a circuit breaker, and a standard pattern in each case is determined. That is, a pattern indicating each detector position and the signal level of each detector is created from the positions of the plurality of detectors and the signal levels detected by the detectors obtained by the simulated fault. This pattern is stored in the standard pattern storage device 20 which is a storage device.
上述した模擬故障の発生方法について第４図に示して
いる。接地タンク１内に通電用の中心導体２を配置した
ガス絶縁機器の接地装置部a,b及び断路器部Ｃを示した
ものである。接地タンク１の接地線９には電流検出器８
が取付けられている。また、検出器７は音響的な信号を
検出するためのものである。このような現地据付けの完
了した機器に試験用の電源６を印加線600を介して接続
し、絶縁部４を貫通する接地線５にて接地する接地装置
３の接点を閉路状態に近づけることにより接点部に放電
60を発生させ模擬故障とするものである。この場合には
対地絶縁に対する地絡故障あるいは部分放電異常を模擬
することができ、検出器８及び７の出力を第１図に示す
入力処理装置10に送り込むことにより検出パターンを得
ることができる。ｂは電圧印加方法を変えた場合の例で
ある。ガス絶縁機器が変圧器に直結され、更に線路側に
気中ブツシングがなくケーブルに直結されるような場合
には、試験用電源６からの電圧印加がむずかしくなる。
このような場合には通常接地装置３が絶縁部４により接
地タンク１から電気的に絶縁されていることを利用し、
模擬故障を発生させることも可能である。Ｃは断路器70
の接点を閉路状態に近づけることにより放電60を発生さ
せ模擬故障とした場合である。この場合には接点の接触
不良状態などで発生する極間部分放電を模擬することに
なる。この場合においてもｂに示したように接地装置を
閉路状態とし、電圧を印加することも可能である。FIG. 4 shows a method of generating the simulated fault described above. FIG. 2 shows grounding devices a and b and a disconnector C of a gas-insulated device in which a current-carrying central conductor 2 is arranged in a grounding tank 1. A current detector 8 is connected to the ground line 9 of the ground tank 1.
Is installed. The detector 7 is for detecting an acoustic signal. A power supply 6 for testing is connected to such equipment that has been installed on site via an application wire 600, and the contact point of the grounding device 3 that is grounded by a grounding wire 5 that penetrates the insulating part 4 is brought close to a closed state. Discharge to contact
A simulated failure is generated by generating 60. In this case, a ground fault or partial discharge abnormality with respect to ground insulation can be simulated, and a detection pattern can be obtained by sending the outputs of the detectors 8 and 7 to the input processing device 10 shown in FIG. b is an example in the case where the voltage application method is changed. When the gas insulation device is directly connected to the transformer and further connected directly to the cable without air bushing on the line side, it becomes difficult to apply the voltage from the test power supply 6.
In such a case, usually, the fact that the grounding device 3 is electrically insulated from the grounding tank 1 by the insulating portion 4 is used,
Simulated faults can also be generated. C is disconnector 70
In this case, a simulated failure is caused by causing the discharge 60 to be generated by bringing the contact point closer to the closed state. In this case, a partial discharge between the poles generated in a contact failure state of the contact or the like is simulated. Also in this case, it is possible to close the grounding device and apply a voltage as shown in b.
なお、Ｃは断路器の場合であるが、遮断器においても
全く同様にして模擬故障を発生することができる。Note that C is the case of a disconnecting switch, but a simulated failure can be generated in the same manner in a circuit breaker.
上述の方法により、第３図に示した標準パターンが決
定される。The standard pattern shown in FIG. 3 is determined by the above method.
本発明のシステムの運用状態についての動作の詳細を
第５図のフローに示してある。入力処理装置10は各検出
器からのデータを収集し、まずそれらに異常値が含まれ
ているかを判定する。正常の場合にはその旨を表示装置
50で表示する。一方、異常値が含まれる場合には、デー
タを処理し検出パターン30を求める。検出パターン算出
装置30は第3,4図の方法により予め求められている標準
パターン20と演算装置40内で比較され、最も類似度が大
きい標準パターンから異常発生位置を標定し、更にその
度合の定量も行い、その結果を表示装置50に表示する。The details of the operation of the system of the present invention with respect to the operation state are shown in the flow chart of FIG. The input processing device 10 collects data from each of the detectors, and first determines whether or not the data includes an abnormal value. If it is normal, a display device
Display at 50. On the other hand, when an abnormal value is included, the data is processed and the detection pattern 30 is obtained. The detection pattern calculation device 30 is compared in the arithmetic device 40 with the standard pattern 20 obtained in advance by the method of FIGS. 3 and 4, and locates the abnormality occurrence position from the standard pattern having the highest similarity, and further determines the degree of the abnormality. The quantification is also performed, and the result is displayed on the display device 50.
このような検出方式を用いることにより、比較的少な
い検出器で高精度の異常位置の標定が可能となる。By using such a detection method, it is possible to accurately locate an abnormal position with a relatively small number of detectors.
本発明に用いる検出器Ｓ1〜Ｓ8としては、例えば異常
時の接地電流を検出する接地電流検出器や、部分放電を
検出する部分放電検出器、更には超音波或いはアコース
テツクエミツシヨン等の音響検出器が用いられ、これら
の１種のみまたは適宜組合せて使用することができる。The detectors S 1 to S 8 used in the present invention include, for example, a ground current detector for detecting a ground current at the time of an abnormality, a partial discharge detector for detecting a partial discharge, and an ultrasonic or acoustic emission detector. An acoustic detector is used, and these can be used alone or in an appropriate combination.
接地装置、断路器、遮断器等で構成されるガス絶縁機
器内の異常発生位置の標定を、従来の1/5〜1/10の検出
器数で行うことが可能となる。このため複雑で大規模の
変電所の異常監視システムへの適用の場合には経済的な
効果も一層大きくなる。また、運用状態に近い状態で模
擬故障を発生させていることから、検出の精度の大幅に
向上する。It is possible to locate an abnormality occurrence position in a gas insulated device including a grounding device, a disconnecting device, a circuit breaker, and the like with 1/5 to 1/10 of the number of conventional detectors. For this reason, when applied to a complicated and large-scale substation abnormality monitoring system, the economic effect is further increased. In addition, since the simulated fault is generated in a state close to the operation state, the detection accuracy is greatly improved.
第１図は本発明の一実施例であるガス絶縁機器の異常位
置標定システムを示す概略図、第２図は本発明の原理を
示す特性図、第３図及び第５図は本発明のシステムを示
すフロー図、第４図は本発明の原理を示す結線図であ
る。 １……接地タンク、２……中心導体、３……接地装置、
４……絶縁部、５……接地線、６……電源、7,8,S1〜Ｓ
8……検出器、９……接地線、101〜112……接地装置、2
01〜213……断路器、301〜304……遮断器、401〜403…
…避電器、501〜508……変流器、601〜606……母線、10
0……変圧器、200……ブツシング、10……入力処理装
置、20……標準パターン収納装置、30……検出パターン
算出装置、40……演算装置、50……表示装置。FIG. 1 is a schematic diagram showing an abnormal position locating system for gas insulated equipment according to an embodiment of the present invention, FIG. 2 is a characteristic diagram showing the principle of the present invention, and FIGS. 3 and 5 are systems according to the present invention. FIG. 4 is a connection diagram showing the principle of the present invention. 1 grounding tank 2 center conductor 3 grounding device
4 ... insulation part, 5 ... ground wire, 6 ... power supply, 7, 8, S 1 to S
8 Detector, 9 Ground wire, 101-112 Grounding device, 2
01-213 …… Disconnector, 301-304 …… Circuit breaker, 401-403…
... Electric surge breaker, 501-508 ... Current transformer, 601-606 ... Bus, 10
0: transformer, 200: bushing, 10: input processing device, 20: standard pattern storage device, 30: detection pattern calculation device, 40: arithmetic device, 50: display device.
フロントページの続き (72)発明者 小沢 淳 茨城県日立市久慈町4026番地 株式会社 日立製作所日立研究所内 (56)参考文献 特開 昭60−120268（ＪＰ，Ａ) 実開 昭61−135277（ＪＰ，Ｕ)Continuation of the front page (72) Inventor Atsushi Ozawa 4026 Kuji-cho, Hitachi City, Ibaraki Prefecture, Hitachi Research Laboratory, Hitachi, Ltd. (56) References , U)
Claims (4)
連結する母線等から構成されるガス絶縁機器の各部に複
数個の検出器を設置するとともに、該複数の検出器と接
続された演算装置を備えたガス絶縁機器の異常標定シス
テムであって、前記演算装置が、前記複数の検出器の位
置と検出器により検出された信号レベルから各検出器位
置と各検出器毎の信号レベルを示す検出パターンを作成
するものであって、前記記憶装置に予め記憶され、模擬
故障を発生させて得られる各検出器位置と各検出器毎の
信号レベルを示す標準パターンと比較して異常発生位置
を標定することを特徴とするガス絶縁機器の異常標定シ
ステム。1. A plurality of detectors are installed in each part of a gas insulating device including a grounding device, a disconnector, a circuit breaker, and a bus connecting them, and an arithmetic unit connected to the plurality of detectors. An abnormality locating system for a gas insulated device provided with a device, wherein the arithmetic unit determines a position of each detector and a signal level of each detector from positions of the plurality of detectors and signal levels detected by the detectors. A detection pattern which is stored in advance in the storage device and is compared with a standard pattern indicating a signal level of each detector obtained by generating a simulated fault and an abnormality occurrence position. An abnormal location system for gas-insulated equipment, characterized by the following:
器が、接地電流検出器、部分放電検出器、音響検出器の
うちの少なくとも１つ以上で構成されていることを特徴
とするガス絶縁機器の異常標定システム。2. The gas according to claim 1, wherein said detector comprises at least one of a ground current detector, a partial discharge detector, and an acoustic detector. Abnormal location system for insulation equipment.
装置に予め記憶された標準パターンが、前記ガス絶縁機
器の各部に模擬故障を発生させて前記検出器に検出され
た信号から作成されていることを特徴とするガス絶縁機
器の異常標定システム。3. The standard pattern according to claim 1, wherein the standard pattern stored in the storage device is created from a signal detected by the detector by causing a simulated failure in each part of the gas-insulated equipment. An abnormal location system for gas-insulated equipment, characterized in that:
発生位置及び大きさを表示装置に表示することを特徴と
するガス絶縁機器の異常標定システム。4. The system according to claim 1, wherein the position and size of the abnormality are displayed on a display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63058319A JP2728422B2 (en) | 1988-03-14 | 1988-03-14 | Abnormal location system for gas insulation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63058319A JP2728422B2 (en) | 1988-03-14 | 1988-03-14 | Abnormal location system for gas insulation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01234016A JPH01234016A (en) | 1989-09-19 |
| JP2728422B2 true JP2728422B2 (en) | 1998-03-18 |
Family
ID=13080953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63058319A Expired - Fee Related JP2728422B2 (en) | 1988-03-14 | 1988-03-14 | Abnormal location system for gas insulation equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2728422B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010224585A (en) * | 2009-03-19 | 2010-10-07 | Fuji Electric Fa Components & Systems Co Ltd | Energy saving support device, method of reporting energy consumption, program and program medium for energy saving support device, method of updating statistic of energy consumption, method of updating normal range of energy consumption, and energy saving support system |
| JP5530966B2 (en) * | 2011-03-10 | 2014-06-25 | 株式会社日立製作所 | Method and apparatus for testing insulation performance of gas insulation equipment |
| CN109142965A (en) * | 2018-06-29 | 2019-01-04 | 马瑞 | A kind of big data fusion distribution network failure is accurately positioned new method and its device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60120268A (en) * | 1983-12-05 | 1985-06-27 | Toshiba Corp | Corona discharge detecting apparatus |
| JPS61135277U (en) * | 1985-02-13 | 1986-08-23 |
-
1988
- 1988-03-14 JP JP63058319A patent/JP2728422B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01234016A (en) | 1989-09-19 |
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