JPH0487284A - Lightning arrester separator - Google Patents
Lightning arrester separatorInfo
- Publication number
- JPH0487284A JPH0487284A JP20411590A JP20411590A JPH0487284A JP H0487284 A JPH0487284 A JP H0487284A JP 20411590 A JP20411590 A JP 20411590A JP 20411590 A JP20411590 A JP 20411590A JP H0487284 A JPH0487284 A JP H0487284A
- Authority
- JP
- Japan
- Prior art keywords
- transmission line
- lightning arrester
- power transmission
- voltage
- circuit breaker
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 230000002159 abnormal effect Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 20
- 238000010248 power generation Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野〕
この発明は送電線の引込部に設けられる避雷器の切離し
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disconnecting device for a lightning arrester provided at a lead-in portion of a power transmission line.
［従来の技術］
第２図は電気協同研究（社団法人電気協同研究会発行）
の第４４巻第３号の第５８、及び５９頁に示された送電
線の系統図である。図において、発電機７と負荷９は例
えば数１０Ｋｍ離れたそれぞれの位置に設置されており
、その間を２本の送電線である発電母線４により接続し
ている。それぞれの発電母線４と負荷９間には負荷９を
発電母線４に接離するだめの遮断器２が負荷の近傍に設
けられている。またそれぞれの発電母線４には遮断器２
の近傍において避雷器ｌが設けられている。[Conventional technology] Figure 2 is Electric Cooperative Research (published by Electric Cooperative Research Association)
It is a system diagram of the power transmission line shown in the 58th and 59th pages of Volume 44, No. 3. In the figure, a generator 7 and a load 9 are installed at respective positions separated by, for example, several tens of kilometers, and are connected by a power generation bus 4, which is two power transmission lines. Between each power generation bus 4 and the load 9, a circuit breaker 2 for connecting and separating the load 9 from the power generation bus 4 is provided near the load. In addition, each power generation bus 4 has a circuit breaker 2.
A lightning arrester l is provided near the.
［発明が解決しようとする課題］
このような送電線において、発電機７の運転中に遮断器
２を開にして負荷９を発電母線から切り離すと、長距離
送電線において無負荷になったときその端子電圧が上昇
する公知のフエランチ効果や、無負荷になったことによ
る発電機の回転数増加によって生じる発電電圧の上昇に
よって発電母線４に交流の過電圧が発生する。この過電
圧は遮断器を開にしてから０．８秒後に上昇し始め数秒
間持続する。この過電圧は定格電圧の１３倍近くに達す
る場合もあり、その過電圧が発電母線に接続された避雷
器１に印加される。その結果避雷器１の電流が増加し、
内部で消費されるエネルギーである処理エネルギーが増
加する。この処理エネルギーがあらかじめ定めらた避雷
器１の定格値を超えると避雷器ｌは損傷をうける。[Problems to be Solved by the Invention] In such a power transmission line, if the circuit breaker 2 is opened to disconnect the load 9 from the generation bus while the generator 7 is in operation, when the long-distance transmission line becomes no-load. An alternating current overvoltage is generated in the power generation bus 4 due to the well-known Ferranti effect in which the terminal voltage increases, and the increase in the generated voltage caused by the increase in the rotational speed of the generator due to no load. This overvoltage begins to rise 0.8 seconds after opening the circuit breaker and continues for several seconds. This overvoltage may reach nearly 13 times the rated voltage, and is applied to the lightning arrester 1 connected to the power generation bus. As a result, the current in lightning arrester 1 increases,
Processing energy, which is energy consumed internally, increases. If this processing energy exceeds a predetermined rated value of the surge arrester 1, the surge arrester 1 will be damaged.
［課題を解決するための手段］
この発明の避雷器切離し装置は、発電機から負荷へ送電
する送電線に設けられた負荷と送電線を接離する遮断器
の開成を検出する検出手段の検出出力、及び送電線の電
圧の異常な上昇を検出したとき検出出力を発生する電圧
検出手段の検出出力の両方の検出出力によって前記送電
線に設けられた避雷器を前記送電線から切り離す開閉手
段を開成するように構成している。[Means for Solving the Problems] The lightning arrester disconnection device of the present invention has a detection output of a detection means for detecting the opening of a circuit breaker that connects or disconnects the load and the transmission line, which is provided on the transmission line that transmits power from the generator to the load. , and a detection output of a voltage detection means that generates a detection output when an abnormal increase in the voltage of the power transmission line is detected. It is configured as follows.
［作用コ
遮断器の開成又は送電線の電圧の異常な上昇を検出する
と避雷器は送電線から切り離される。[The arrester is disconnected from the power line when the circuit breaker is opened or an abnormal rise in the voltage of the power line is detected.
［実施例］
第１図にこの発明の実施例の構成を示す。図において、
発電機７に接続された発電母線４は遮断器２を経て負荷
９に接続されている。発電母線４には遮断器２の近傍に
おいて避雷器１が開閉器１０を介して接続されている。[Embodiment] FIG. 1 shows the configuration of an embodiment of the present invention. In the figure,
A power generation bus 4 connected to a generator 7 is connected to a load 9 via a circuit breaker 2. A lightning arrester 1 is connected to the power generation bus 4 via a switch 10 in the vicinity of the circuit breaker 2 .
第１図においては避雷器２は一方の発電母線４のみに設
けられているが、両方の発電母線４に設けてもよい。開
閉器１０には開閉器１０の開閉を制御する開閉器制御装
置１２が設けられている。発電母線４にはさらに発電母
線４の電圧を検出する例えばコンデンサを用いる公知の
ポテンシャルデバイダによる電圧検出器１４が設けられ
ており、発電母線４の電圧が所定の設定値を超えると検
出出力を発生する。その検出出力は開閉器制御装置１２
に入力されている。In FIG. 1, the lightning arrester 2 is provided only on one power generation bus 4, but it may be provided on both power generation buses 4. The switch 10 is provided with a switch control device 12 that controls opening and closing of the switch 10. The power generation bus 4 is further provided with a voltage detector 14 using a known potential divider using a capacitor, for example, to detect the voltage of the power generation bus 4, and generates a detection output when the voltage of the power generation bus 4 exceeds a predetermined set value. do. The detection output is the switch control device 12
has been entered.
遮断器２には遮断器２の開閉状態を検出するための状態
検出器１１が設けられている。状態検出器１１は例えば
、遮断器の動作により駆動されるリミットスイッチであ
る。The circuit breaker 2 is provided with a state detector 11 for detecting whether the circuit breaker 2 is open or closed. The state detector 11 is, for example, a limit switch driven by the operation of a circuit breaker.
上記の構成において、発電機７の運転中に遮断器２が開
成されると、その状態は状態検出器１１により検出され
、検出出力が開閉器制御装置１２に入力される。この状
態で、送電母線４の電圧が電圧検出器１４の前記所定の
設定値を超えると電圧検出器１４は検出出力を生じ、そ
の検出出力も開閉器制御装置１２に印加される。その結
果開閉器制御装置１２は開閉器ｌＯを開成させ、避雷器
１は発電母線４から切り離される。開閉器１０は一旦開
成されるとその状態を保っている。In the above configuration, when the circuit breaker 2 is opened while the generator 7 is in operation, its state is detected by the state detector 11 and the detection output is input to the switch control device 12 . In this state, when the voltage of the power transmission bus 4 exceeds the predetermined setting value of the voltage detector 14, the voltage detector 14 generates a detection output, and the detection output is also applied to the switch control device 12. As a result, the switch control device 12 opens the switch IO, and the lightning arrester 1 is disconnected from the power generation bus 4. Once the switch 10 is opened, it remains in that state.
開閉器１０を閉成する場合は、操作員による安全確認の
後、手動操作により閉成される。When closing the switch 10, the operator performs a safety check and then manually closes the switch 10.
［発明の効果］
この発明によれば、遮断器２が開成されかつ発電母線４
の電圧が異常上昇したとき開閉器ｌＯが開成されて避雷
器１が発電母線４から切離される。[Effect of the invention] According to the invention, the circuit breaker 2 is opened and the power generation bus 4 is opened.
When the voltage of the surge arrester 1 increases abnormally, the switch lO is opened and the lightning arrester 1 is disconnected from the power generation bus 4.
従って避雷器ｌに過大な電圧が印加されることはない。Therefore, an excessive voltage is not applied to the lightning arrester l.
第１図はこの発明の避雷器の切離し装置の実施例のブロ
ック図、第２図は従来の技術の送電線の構成図である。
図中、１は避雷器、２は遮断器、４は送電線、７は発電
機、９は負荷、１０は開閉器、１１は状態検出器、１４
は電圧検出器である。FIG. 1 is a block diagram of an embodiment of the lightning arrester disconnection device of the present invention, and FIG. 2 is a block diagram of a conventional power transmission line. In the figure, 1 is a lightning arrester, 2 is a circuit breaker, 4 is a transmission line, 7 is a generator, 9 is a load, 10 is a switch, 11 is a status detector, 14
is a voltage detector.
Claims (1)
れ、負荷を送電線に接離する遮断器、 遮断器の開成を検出する検出手段、 送電線の電圧の所定の異常な上昇を検出したとき検出出
力を発生する電圧検出手段、 前記送電線に設けられた避雷器、及び 送電線と避雷器間に設けられ、前記検出手段の検出出力
及び電圧検出手段の検出出力の両方の検出出力が入力さ
れたとき避雷器を送電線から切り離す開閉手段、 を有する避雷器切離し装置。(1) A circuit breaker installed on the transmission line that transmits power from the generator to the load, which connects and disconnects the load to the transmission line, a detection means that detects opening of the circuit breaker, and a detection means that detects a predetermined abnormal rise in the voltage of the transmission line. A voltage detection means that generates a detection output when detected, a lightning arrester provided on the power transmission line, and a voltage detection means provided between the power transmission line and the lightning arrester, the detection output of both the detection output of the detection means and the detection output of the voltage detection means being A lightning arrester disconnecting device comprising: opening/closing means for disconnecting the lightning arrester from a power transmission line when a surge arrester is input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20411590A JPH0487284A (en) | 1990-07-30 | 1990-07-30 | Lightning arrester separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20411590A JPH0487284A (en) | 1990-07-30 | 1990-07-30 | Lightning arrester separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0487284A true JPH0487284A (en) | 1992-03-19 |
Family
ID=16485064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20411590A Pending JPH0487284A (en) | 1990-07-30 | 1990-07-30 | Lightning arrester separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0487284A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670454A (en) * | 1992-08-18 | 1994-03-11 | Mitsubishi Electric Corp | Switch |
| US9260369B1 (en) | 2014-11-14 | 2016-02-16 | Celanese International Corporation | Processes for producing acetic acid product having low butyl acetate content |
-
1990
- 1990-07-30 JP JP20411590A patent/JPH0487284A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670454A (en) * | 1992-08-18 | 1994-03-11 | Mitsubishi Electric Corp | Switch |
| US9260369B1 (en) | 2014-11-14 | 2016-02-16 | Celanese International Corporation | Processes for producing acetic acid product having low butyl acetate content |
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