JPS61162249U - - Google Patents
Info
- Publication number
- JPS61162249U JPS61162249U JP4381285U JP4381285U JPS61162249U JP S61162249 U JPS61162249 U JP S61162249U JP 4381285 U JP4381285 U JP 4381285U JP 4381285 U JP4381285 U JP 4381285U JP S61162249 U JPS61162249 U JP S61162249U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- output
- voltage
- tripping
- distance
- 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 description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例の回路図、第２図は
従来例の回路図、第３図、第４図は電圧平衡継電
器の動作特性図である。
１……母線、２……送電線、３……しや断器、
４Ａ，４Ｂ……計器用変圧器、５……距離継電器
、６……電圧平衡継電器、７……ＣＢ３相閉信号
検出手段、８，９……アンドゲート、１０……ノ
ツトゲート、１１……トリツプ信号。
FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram of a conventional example, and FIGS. 3 and 4 are operational characteristic diagrams of a voltage balancing relay. 1...Bus bar, 2...Transmission line, 3...Shin breaker,
4A, 4B...Instrument transformer, 5...Distance relay, 6...Voltage balance relay, 7...CB3 phase closed signal detection means, 8, 9...And gate, 10...Not gate, 11...Trip signal.
Claims (1)
計器用変圧器の２次電圧を入力とする電圧平衡継
電器の出力により距離継電器による引外しを阻止
する送電線の保護継電装置において、しや断器が
３相とも閉路であることを検出する手段を設け、
この検出手段の出力が３相閉路に対応するもので
ないとき電圧平衡継電器出力により距離継電器に
よる引外し阻止を無効とすることを特徴とする保
護継電装置。 In a protection relay device for a power transmission line that prevents tripping by a distance relay by using the output of a voltage balancing relay that receives the secondary voltage of a voltage transformer installed on the line side of the busbar and edge disconnector, A means is provided to detect that all three phases are closed.
A protective relay device characterized in that when the output of the detection means does not correspond to a three-phase closed circuit, the output of the voltage balance relay nullifies tripping prevention by the distance relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4381285U JPS61162249U (en) | 1985-03-28 | 1985-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4381285U JPS61162249U (en) | 1985-03-28 | 1985-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61162249U true JPS61162249U (en) | 1986-10-07 |
Family
ID=30555820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4381285U Pending JPS61162249U (en) | 1985-03-28 | 1985-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61162249U (en) |
-
1985
- 1985-03-28 JP JP4381285U patent/JPS61162249U/ja active Pending
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