JPS5878734U - phase comparison relay - Google Patents
phase comparison relayInfo
- Publication number
- JPS5878734U JPS5878734U JP17387481U JP17387481U JPS5878734U JP S5878734 U JPS5878734 U JP S5878734U JP 17387481 U JP17387481 U JP 17387481U JP 17387481 U JP17387481 U JP 17387481U JP S5878734 U JPS5878734 U JP S5878734U
- Authority
- JP
- Japan
- Prior art keywords
- output
- waveform conversion
- circuit
- selects
- switch
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の位相比較継電器の回路図、第２図は電力
系統の構成図、第３図及び第４図は第１ 図に示す位
相比較継電器の動作の波形図、第５図は電力系の構成図
、第６図及び第７図は第１図に示す位相比較継電器の動
作の波形図、第８図はこの考案の一実施例による位相比
較継電器の回路図、第９図及び第１０図は第８図に示す
位相比較継電器の動作の波形図である。
図中、同一符号は同一部分を示す。Figure 1 is a circuit diagram of a conventional phase comparison relay, Figure 2 is a power system configuration diagram, Figures 3 and 4 are waveform diagrams of the operation of the phase comparison relay shown in Figure 1, and Figure 5 is a power system diagram. A system configuration diagram, FIGS. 6 and 7 are waveform diagrams of the operation of the phase comparison relay shown in FIG. 1, FIG. 8 is a circuit diagram of the phase comparison relay according to an embodiment of this invention, and FIGS. FIG. 10 is a waveform diagram of the operation of the phase comparison relay shown in FIG. 8. In the figures, the same reference numerals indicate the same parts.
Claims (1)
出レベルで検出して矩形波に変換する第１及び第２の波
形変換回路と、上記送電線の自端側に電源を有するとき
は上記第１の波形変換回路の出力を選択し、上記電源を
有しないときは上記第２の波形変換回路の出力を選択す
る第１のスイッチと、上記電源を有するときは上記第２
の波形変換回路の出力を選択し、上記電源を有しないと
きは上記第１の波形変換回路の出力を選択する第２のス
イッチと、上記第１のスイッチの出力を上記他端へ送出
する送信回路と、上記他端における上記送信回路の出力
番受信する受信回路と、上記第２のスイッチの出力と上
記受信回路の出力とが所定時限以上一致したときはトリ
ップを発生する回路とを備えたことを特徴とする位相比
較継電器。first and second waveform conversion circuits that detect a current signal detected at the end of the power transmission line at first and second detection levels and convert it into a rectangular wave; and a power supply at the end of the power transmission line. a first switch that selects the output of the first waveform conversion circuit when the power supply is provided, and selects the output of the second waveform conversion circuit when the power supply is not provided;
a second switch that selects the output of the waveform conversion circuit and selects the output of the first waveform conversion circuit when the power supply is not provided; and a transmission that sends the output of the first switch to the other end. a receiving circuit that receives the output number of the transmitting circuit at the other end, and a circuit that generates a trip when the output of the second switch and the output of the receiving circuit match for a predetermined time period or more. A phase comparison relay characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17387481U JPS5878734U (en) | 1981-11-19 | 1981-11-19 | phase comparison relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17387481U JPS5878734U (en) | 1981-11-19 | 1981-11-19 | phase comparison relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5878734U true JPS5878734U (en) | 1983-05-27 |
Family
ID=29965779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17387481U Pending JPS5878734U (en) | 1981-11-19 | 1981-11-19 | phase comparison relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5878734U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5386449A (en) * | 1977-01-11 | 1978-07-29 | Toshiba Corp | Relay for phase comparison |
| JPS53141444A (en) * | 1977-05-16 | 1978-12-09 | Toshiba Corp | Phase comparison protective relay |
-
1981
- 1981-11-19 JP JP17387481U patent/JPS5878734U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5386449A (en) * | 1977-01-11 | 1978-07-29 | Toshiba Corp | Relay for phase comparison |
| JPS53141444A (en) * | 1977-05-16 | 1978-12-09 | Toshiba Corp | Phase comparison protective relay |
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