JP3041632B2 - Distribution line accident section separation method - Google Patents
Distribution line accident section separation methodInfo
- Publication number
- JP3041632B2 JP3041632B2 JP2225410A JP22541090A JP3041632B2 JP 3041632 B2 JP3041632 B2 JP 3041632B2 JP 2225410 A JP2225410 A JP 2225410A JP 22541090 A JP22541090 A JP 22541090A JP 3041632 B2 JP3041632 B2 JP 3041632B2
- Authority
- JP
- Japan
- Prior art keywords
- section
- ground fault
- distribution line
- slave station
- load side
- 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
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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、高圧配電線地絡事故における事故区間の除
去及び健全区間の送電法に関する。Description: TECHNICAL FIELD The present invention relates to a method for removing an accident section in a high-voltage distribution line ground fault and transmitting power to a sound section.
（従来の技術） 第３図は従来の配電線保護システムの構成を示したも
のである。第３図において、31は変電所の主変圧器、32
は回路遮断器（CB）、33ないし36は区分開閉器（SW）、
37ないし40は開閉器の投入電圧を発生するまでにある遅
延時間を有する遅延投入動作機構（以下、DMと略記す
る）である。(Prior Art) FIG. 3 shows a configuration of a conventional distribution line protection system. In Fig. 3, 31 is the main transformer of the substation, 32
Is a circuit breaker (CB), 33 or 36 is a segment switch (SW),
Reference numerals 37 to 40 denote a delay closing operation mechanism (hereinafter abbreviated as DM) having a certain delay time until the closing voltage of the switch is generated.
次に、第３図の如く構成された配電線保護システムの
動作について説明する。各区分開閉器33,34,35,36はそ
れぞれ対応するDM37ないしDM40からの投入電圧により入
状態を保持している。今、＃３区間に地絡事故が発生し
た場合、変電所の保護リレー（図示せず）が地絡を検出
し回路遮断器32を動作させ回路を遮断する。と同時に、
各区分開閉器33〜36は配電線が無電圧になることでDM37
〜DM40からの投入電圧を失い、切状態となる。一定時間
後回路遮断器32は自動投入されるが、各DMには投入電圧
を発生するまでの遅延時間（×時間）が設定されてお
り、回路遮断器32の自動投入から＃３区間が再充電され
るまで（再度＃３区間の配電線地絡によって回路遮断器
が動作して回路が遮断されるまで）数十秒の時間差を伴
う。この時間により、操作員は＃３区間が事故区間であ
ることを認識することができる。Next, the operation of the distribution line protection system configured as shown in FIG. 3 will be described. Each of the sectional switches 33, 34, 35, and 36 holds the ON state by the applied voltage from the corresponding DM37 to DM40. If a ground fault occurs in the section # 3, a protection relay (not shown) of the substation detects the ground fault and operates the circuit breaker 32 to cut off the circuit. At the same time
Each section switch 33-36 is DM37 when the distribution line becomes no voltage.
The input voltage from DM40 is lost and the device is turned off. After a certain time, the circuit breaker 32 is automatically turned on. However, each DM has a delay time (× time) until the closing voltage is generated. There is a time difference of several tens of seconds until the battery is charged (until the circuit breaker operates and the circuit is cut off due to the ground fault in the # 3 section again). From this time, the operator can recognize that the # 3 section is an accident section.
その後回路遮断器32は再び投入されるが、前回回路遮
断器32の自動投入後＃1DM37及び＃2DM38は対応する区分
開閉器33及び34投入後、一定時間（Ｙ時間）内に回路遮
断器32が再遮断動作しなかったので投入機能がロック
（Ｙロック）されていないが、＃3DM39は区分開閉器35
が投入後一定時間（Ｙ時間）内に回路遮断器32が再遮断
動作したことを検出して投入機能がロック（Ｙロック）
されているため区分開閉器35は投入されず、結果的に事
故区間より電源側のみの送電が再開される。その後事故
区間より負荷側区間を送電するため、操作員が他回線と
の常開開閉器41を遠隔制御もしくは手動で投入する。ま
た、事故区間については、巡視点検により事故発生箇所
の発見と復旧を行う。Thereafter, the circuit breaker 32 is turned on again. However, after the previous automatic turning on of the circuit breaker 32, the # 1DM37 and # 2DM38 are turned on within a predetermined time (Y time) after the corresponding section switches 33 and 34 are turned on. Although the closing function was not locked (Y-lock) because of the re-cutoff operation, the # 3DM39 was a section switch 35
Detects that the circuit breaker 32 has been re-cut off within a certain time (Y time) after closing, and the closing function is locked (Y lock).
As a result, the section switch 35 is not turned on, and as a result, power transmission only on the power supply side from the accident section is restarted. Then, in order to transmit power from the accident section to the load side section, the operator remotely controls or manually turns on the normally open switch 41 with another line. For the accident section, the location where the accident occurred will be discovered and restored by patrol inspection.
上記従来の方式では、健全区間は最低２回停電し、事
故区間の負荷側については、操作員の判断により手動で
復旧されるので送電まで更に時間を要した。また、事故
箇所については、区分開閉器内の全ての電柱及び電柱間
について原因調査を行う必要があった。このような問題
点を解決するため、各電柱毎に設置された地絡センサに
よる事故検出機能により、事故箇所が事故箇所センサー
事故点標定用子局−親局を経由して通知され、事故箇所
が電柱単位で特定できるのみならず、制御用計算機が変
電所保護継電器の動作情報とセンサ情報との総合判定に
より、事故区間の切離し、かつ負荷側健全区間を逆送す
るため開閉器操作手順を瞬時に作成し、親局を介して、
開閉器制御指令を子局に対して行い、結果的に回路遮断
器による回路遮断に至らず事故区間を除去するようにし
た計算機を用いた事故区間切離しシステムがある。In the above-described conventional method, power is cut off at least twice in the healthy section, and the load side in the accident section is manually restored at the discretion of the operator. In addition, for the accident location, it was necessary to investigate the cause of all power poles in the switchgear and between the power poles. In order to solve such problems, an accident detection function is provided by a ground fault sensor installed for each telephone pole, and the accident location is notified via the accident location sensor Not only can be specified on a pole-by-pole basis, but the control computer can determine the switch operation procedure to separate the fault section and reverse the load-side healthy section based on the comprehensive judgment of the operation information of the substation protection relay and the sensor information. Create instantly and through the master station,
There is an accident section separation system using a computer that issues a switch control command to a slave station and eventually removes the accident section without circuit interruption by the circuit breaker.
（発明が解決しようとする課題） しかしながら、計算機を用いた事故区間切離しシステ
ムを構築するためには、配電線系の接続ルート情報や現
在状態、各区間に供給すべき電力や、各配電線の供給能
力を把握した大型制御用計算機が必要で、かつ、短時間
に変電所情報伝送装置、標定用子局と情報伝送を行うた
めの高速通信網が必要となる。また、手順作成には区間
開閉器の現在状態（入／切）を正確に把握する必要があ
り、開閉器が100％遠隔制御化されていない地域では情
報の欠落により正確な手順を作成する事が困難な場合も
ある。その他開閉器制御指令が計算機−親局−子局間で
伝送される為の通信時間により１事故当りの制御台数に
も制限がある。(Problems to be Solved by the Invention) However, in order to construct an accident section separation system using a computer, connection route information and the current state of the distribution line system, the power to be supplied to each section, and the distribution line A large-scale computer for controlling the supply capacity is required, and a high-speed communication network for transmitting information to the substation information transmission device and the positioning substation in a short time is required. In addition, it is necessary to accurately understand the current state (on / off) of the section switch in order to create the procedure. In areas where the switch is not 100% remote controlled, create an accurate procedure due to lack of information. Can be difficult. In addition, the number of switches controlled per accident is limited by the communication time for transmitting the switch control command between the computer, the master station, and the slave station.
本発明は、このような従来の問題を解決するものであ
り、大規模なシステムを構築することなく、切離し子局
を中心として簡単な原理で確実な配電線事故区間切離し
システムを提供することを目的とするものである。The present invention is to solve such a conventional problem and to provide a reliable distribution line accident section separation system based on a simple principle centering on a separation slave station without constructing a large-scale system. It is the purpose.
（課題を解決するための手段） 本発明は、上記目的を達成するために、配電線事故区
間切離しシステムは、 地路センサ、 標定機能・切離し機能、及び停電監視機能・融通機
能を有する事故点標定用遠隔制御子局、 ポーリング監視、制御の他に、地絡情報伝送装置か
らのフィーダ地絡情報を全子局に通報する機能を有する
親局、 変電所に配置され、地絡継電器の条件でフィーダ単
位地絡情報を親局装置へ伝送する地絡情報伝送装置、 より構成され、事故点標定用遠隔制御子局は、隣接する
区間内の地絡センサの検出情報により区分開閉器を即座
に開放し、常開開閉点子局は開放に伴う停電を検出し、
常開開閉器を即座に投入することで、事故区間の切離し
と、負荷側健全区間の自動逆送処理を行うことができる
ようにしたものである。(Means for Solving the Problems) According to the present invention, in order to achieve the above object, a distribution line fault section separation system includes a fault sensor having a ground sensor, a location function / disconnection function, and a power failure monitoring function / flexibility function. Remote control slave station for location, polling monitoring and control, master station with a function to report feeder ground fault information from the ground fault information transmission device to all slave stations, located at substations, and conditions for ground fault relay The ground fault information transmission device, which transmits the feeder unit ground fault information to the master station device, and the remote control slave station for fault point localization immediately activates the segment switch based on the detection information of the ground fault sensor in the adjacent section. And the normally open switching point slave station detects a power failure accompanying the opening,
By immediately turning on the normally open switch, disconnection of the accident section and automatic reverse feed processing of the load-side healthy section can be performed.
（作用） したがって本発明によって、制御用計算機及び高速伝
送路を用いることなく、従来の計算機を用いたシステム
とほぼ同等の機能を果す事故区間切離しシステムが構築
出来る。(Operation) Therefore, according to the present invention, it is possible to construct an accident section separation system having almost the same function as a system using a conventional computer without using a control computer and a high-speed transmission line.
（実施例） 第１図は本発明の一実施例の構成を示すものである。
第１図において、１は変電所であり、内部に配電線に供
給する電力を遮断する回路遮断器１−１と、地絡電流を
検出する零相電流変流器１−２と、接地用変圧器１−３
と、地絡方向検出リレー１−４を備えている。２は区間
対応に区分開閉器３と対応して設けられた各柱地絡検出
システムであり、対応する区間の電柱対応の地絡検出用
センサと、親局11及び対応する区分開閉器３との間で情
報をやりとりする子局を有する。３は各柱地絡検出シス
テム２と対応して設けられ、フィーダを開閉する区分開
閉器、４は他のフィーダとの間を連絡する常時開放の連
絡用区分開閉器、５は連絡用区分開閉器４を制御する子
局、６は情報伝送路（CL）、７は電柱、８は各電柱７に
対応する接地線、９は配電線である。(Embodiment) FIG. 1 shows a configuration of an embodiment of the present invention.
In FIG. 1, reference numeral 1 denotes a substation, which includes a circuit breaker 1-1 for interrupting power supplied to a distribution line, a zero-phase current transformer 1-2 for detecting a ground fault current, and a grounding substation. Transformer 1-3
And a ground fault direction detection relay 1-4. Reference numeral 2 denotes a pole ground fault detection system provided in correspondence with the section and the section switch 3, and includes a ground fault detection sensor corresponding to a power pole in the corresponding section, the master station 11 and the corresponding section switch 3 It has slave stations that exchange information between Reference numeral 3 is provided in correspondence with each column ground fault detection system 2, and a section switch for opening and closing a feeder, 4 is a normally-open communication section switch for communicating with another feeder, and 5 is a section switch for communication. 6 is an information transmission line (CL), 7 is a telephone pole, 8 is a ground wire corresponding to each telephone pole 7, and 9 is a distribution line.
第２図は第１図の実施例における地絡発生時のフロー
チャートを示したものである。FIG. 2 is a flow chart when a ground fault occurs in the embodiment of FIG.
次に上記実施例の動作について、第１図および第２図
を参照して説明する。Next, the operation of the above embodiment will be described with reference to FIG. 1 and FIG.
通常の配電系統では、変電所１の母線（BUS）から回
路遮断機１−１を通して配電線９に電力を供給してい
る。この配電線９には区分開閉器３−１（SW1）,3−２
（SW2）,3−３（SW3）,3−４（SW4）が設置されており
＃１区間，＃２区間，＃３区間，＃４区間に区分されて
いる。健全な送電状態では区分開閉器３−１〜３−４は
全部投入されており配電線９の全区間に電力が供給され
ている。また、連絡用区分開閉器４は開放されている。In a normal distribution system, power is supplied from the bus (BUS) of the substation 1 to the distribution line 9 through the circuit breaker 1-1. The distribution line 9 includes a sectional switch 3-1 (SW1), 3-2.
(SW2), 3-3 (SW3), and 3-4 (SW4) are provided and are divided into # 1, # 2, # 3, and # 4 sections. In a normal power transmission state, the sectional switches 3-1 to 3-4 are all turned on, and electric power is supplied to all sections of the distribution line 9. The communication section switch 4 is open.
今、＃２区間のセンサ２−22が接続されている電柱７
に地絡事故が発生（S1）すると、変電所１の地絡方向検
出リレー１−４は、この配電線９に地絡事故が発生した
ことを検出し、回路遮断器１−１を遮断させるべく指令
を出す動作を開始する。Now, the utility pole 7 to which the sensor 2-22 in the # 2 section is connected
When a ground fault has occurred (S1), the ground fault direction detection relay 1-4 of the substation 1 detects that a ground fault has occurred in the distribution line 9, and shuts off the circuit breaker 1-1. The operation to issue a command is started.
一方、地絡方向検出リレー１−４の動作の情報は親局
11を経由して配電線内子局に一斉通報される（S2,S
3）。またセンサ２−22は、地絡を検出し＃２区間を挾
む＃２子局２−20,＃３子局２−30へ通知する（S4）。
＃２子局２−20,＃３子局２−30は、前記地絡方向検出
リレー１−４動作の一斉通報受信と、センサ２−22から
の検出情報により、確実に＃２区間内で地絡が発生した
事を認識し区分開閉器３−２（SW2）,3−３（SW3）を直
ちに開放する（S5）。＃３区間，＃４区間はこれにより
停電する事になるが連絡用区分開閉器（SWT）４に接続
される子局５は事故配電線側が無電圧になることと、前
記地絡方向検出リレー１−４の１斉通報受信により直ち
に連絡用区分開閉器４を投入する（S6）。On the other hand, the operation information of the ground fault direction detection relays 1-4 is transmitted to the master station.
Broadcast to the substations in the distribution line via 11 (S2, S
3). The sensor 2-22 detects a ground fault and notifies the # 2 slave station 2-20 and # 3 slave station 2-30 sandwiching the section # 2 (S4).
The # 2 slave station 2-20 and the # 3 slave station 2-30 can reliably perform the # 2 section based on the simultaneous notification reception of the operation of the ground fault direction detection relay 1-4 and the detection information from the sensor 2-22. Recognizing that a ground fault has occurred, the section switches 3-2 (SW2) and 3-3 (SW3) are immediately opened (S5). The # 3 section and the # 4 section cause a power failure. However, the slave station 5 connected to the communication section switch (SWT) 4 has no voltage on the fault distribution line side and the ground fault direction detection relay. Upon receipt of the broadcast message 1-4, the communication section switch 4 is immediately turned on (S6).
（発明の効果） 本発明は、上記実施例から明らかなように、地絡が発
生した区間をそれを挾む区分開閉器が切離し、また、そ
れにより発生した停電区間に対しては、開放中でかつ片
方向側は充電されている開閉器が自ら投入して送電を行
うという極めてシステムの目的に原理的に適応した方法
で切離しを行うので論理に矛盾がなく信頼性が高いシス
テムが構築できる。また、制御用計算機及び高速伝送路
を使用しないため、従来に比べてシステムは安価に構成
でき設置スペースも問題にならない。(Effects of the Invention) According to the present invention, as is apparent from the above-described embodiment, a section switch that sandwiches a section where a ground fault occurs is cut off, and the section where a power failure occurs due to the section is open. On the one side, the switch is charged by itself and the power is switched on by itself, and the power is transmitted in a manner that is in principle adapted to the purpose of the system, so that a highly reliable system without inconsistencies in logic can be constructed. . In addition, since a control computer and a high-speed transmission line are not used, the system can be configured at a lower cost than before, and the installation space does not matter.
第１図は本発明の一実施例における配電線事故区間切離
しシステム構成図、第２図は第１図の実施例における地
絡発生時の動作フローチャート、第３図は従来の配電保
護方式のシステム構成図である。 １…変電所、１−１…回路遮断器、１−２…零相電流変
流器、１−３…接地用変圧器、１−４…地絡方向検出リ
レー、２（２−1,2−2,2−3,2−４）…各柱地絡検出シ
ステム、２−10…＃１子局、２−20…＃２子局、２−30
…＃３子局、２−40…＃４子局、２−11,2−12,2−13,2
−21,2−22,2−23,2−31,2−32,2−33,2−41,2−42,2−
43…地絡検出センサ、３（３−1,3−2,3−3,3−４）…
区分開閉器、４…連絡用区分開閉器、５…子局Ｔ、６…
情報伝送路、７…電柱、８…接地線、９…配電線、11…
親局、31…主変圧器、32…回路遮断器、33,34,35,36…
区分開閉器、37,38,39,40…遅延投入動作機構、41…常
開開閉器。FIG. 1 is a configuration diagram of a system for disconnecting a distribution line fault section in one embodiment of the present invention, FIG. 2 is an operation flowchart when a ground fault occurs in the embodiment of FIG. 1, and FIG. 3 is a system of a conventional distribution protection system. It is a block diagram. DESCRIPTION OF SYMBOLS 1: Substation, 1-1: Circuit breaker, 1-2: Zero-phase current transformer, 1-3: Grounding transformer, 1-4: Ground fault direction detection relay, 2 (2-1,2) -2,2-3,2-4) ... Pole ground fault detection system, 2-10 ... # 1 slave station, 2-20 ... # 2 slave station, 2-30
… # 3 slave station, 2-40… # 4 slave station, 2-11,2-12,2-13,2
−21,2−22,2−23,2−31,2−32,2−33,2−41,2−42,2−
43: Ground fault detection sensor, 3 (3-1, 3-2, 3-3, 3-4)
Section switch, 4 ... Section switch for communication, 5 ... Slave station T, 6 ...
Information transmission line, 7 ... telephone pole, 8 ... ground line, 9 ... distribution line, 11 ...
Master station, 31… Main transformer, 32… Circuit breaker, 33,34,35,36…
Sectional switches, 37, 38, 39, 40: delay closing operation mechanism, 41: normally open switch.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−287321（ＪＰ，Ａ) 特開 平２−106131（ＪＰ，Ａ) 特開 昭64−64535（ＪＰ，Ａ) 特開 昭61−286767（ＪＰ，Ａ) 東洋通信機技報，1988，Ｎｏ．42 （「配電系統における健全区間無停電型 故障区間検出システム」) 中国電力株式会社技研時報，1987，Ｎ ｏ．71（「配電線事故区間新検出方式の 開発」) (58)調査した分野(Int.Cl.7，ＤＢ名) H02H 3/00 - 3/06 H02H 7/26 H02J 13/00 G01R 31/08 ＪＩＣＳＴファイル（ＪＯＩＳ)──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-287321 (JP, A) JP-A-2-106131 (JP, A) JP-A 64-64535 (JP, A) JP-A 61-287 286767 (JP, A) Toyo Tsushinki Giho, 1988, No. 42 (“Soundless section uninterruptible failure section detection system in distribution system”) Chugoku Electric Power Co., Inc. Giken Time Report, 1987, No. 71 (“Development of new detection method for distribution line fault section”) (58) Field surveyed (Int. Cl. 7 , DB name) H02H 3/00-3/06 H02H 7/26 H02J 13/00 G01R 31/08 JICST file (JOIS)
Claims (1)
給する第１の高圧配電線路は、地絡センサを個別に設置
した各電柱に装架され、且つ、子局によって開閉制御さ
れる区分開閉器を複数の前記電柱置きに順次設置して複
数の区間に区分されると共に、各区間の複数の前記地絡
センサはそれぞれ当該区間において電源側及び負荷側に
位置する前記区分開閉器の子局に区間毎に接続されてお
り、又、前記第１の高圧配電線路の負荷側は、第２の変
電所から電力を供給する第２の高圧配電線路の負荷側と
子局によって開閉制御される常開の開閉器を介して接続
されており、 前記第１の変電所が前記第１の高圧配電線路に地絡が発
生したことを検出して、前記親局が地絡検出情報を複数
の前記区分開閉器の子局と１つの前記常開の開閉器の子
局とに一斉通報したときに、地絡が発生した区間の前記
地絡センサが地絡を検出して、地絡発生区間の電源側及
び負荷側の前記区分開閉器の子局にそれぞれ地絡発生情
報を通知すると、前記子局が地絡発生区間の電源側及び
負荷側の前記区分開閉器を開放して、地絡発生区間を切
り離すと共に、地絡発生区間から負荷側の区間を停電さ
せた上、第１の高圧配電線路側が停電したことを常開の
開閉器の子局が検出すると、常開の開閉器を閉じて、第
１の高圧配電線路の地絡発生区間から負荷側の区間に電
力を供給することを特徴とする配電線事故区間切離方
法。A first high-voltage distribution line for supplying electric power from a first substation in which a master station is installed is mounted on each electric pole in which a ground fault sensor is individually installed, and is controlled to be opened and closed by a slave station. And the plurality of ground fault sensors in each section are respectively located on the power supply side and the load side in the section, and the divided switchgears are sequentially installed on the plurality of telephone pole holders. The load side of the first high-voltage distribution line is connected to the load side of the second high-voltage distribution line that supplies power from the second substation and the slave station. The first substation detects that a ground fault has occurred in the first high-voltage distribution line, and the master station detects the ground fault. Information is transmitted to a plurality of slave stations of the switchgear and one slave station of the normally open switchgear. The ground fault sensor detects the ground fault in the section where the ground fault has occurred, and outputs the ground fault occurrence information to the slave stations of the segmented switches on the power supply side and the load side in the ground fault occurrence section. When the slave station notifies the slave station, the section switches on the power supply side and the load side of the ground fault occurrence section are opened to disconnect the ground fault occurrence section, and the power failure is performed from the ground fault occurrence section to the load side section. When the slave station of the normally open switch detects that the first high-voltage distribution line side is out of power, the normally-open switch is closed and the first high-voltage distribution line is switched from the ground fault occurrence section to the load side section. A method for disconnecting a distribution line accident section, comprising supplying electric power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2225410A JP3041632B2 (en) | 1990-08-29 | 1990-08-29 | Distribution line accident section separation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2225410A JP3041632B2 (en) | 1990-08-29 | 1990-08-29 | Distribution line accident section separation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04109821A JPH04109821A (en) | 1992-04-10 |
| JP3041632B2 true JP3041632B2 (en) | 2000-05-15 |
Family
ID=16828937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2225410A Expired - Lifetime JP3041632B2 (en) | 1990-08-29 | 1990-08-29 | Distribution line accident section separation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3041632B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0815373B2 (en) * | 1987-09-03 | 1996-02-14 | 中部電力株式会社 | Distribution line automation device |
| JPH0227272A (en) * | 1988-07-18 | 1990-01-30 | Kyushu Electric Power Co Inc | Apparatus for detecting earth of transmission/ distribution line |
| JPH02106131A (en) * | 1988-10-13 | 1990-04-18 | Energy Support Corp | Protection and coordination system for distribution line |
-
1990
- 1990-08-29 JP JP2225410A patent/JP3041632B2/en not_active Expired - Lifetime
Non-Patent Citations (2)
| Title |
|---|
| 中国電力株式会社技研時報，１９８７，Ｎｏ．７１（「配電線事故区間新検出方式の開発」） |
| 東洋通信機技報，１９８８，Ｎｏ．４２（「配電系統における健全区間無停電型故障区間検出システム」） |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04109821A (en) | 1992-04-10 |
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