JPS60128434U - Earth fault directional relay - Google Patents
Earth fault directional relayInfo
- Publication number
- JPS60128434U JPS60128434U JP5289683U JP5289683U JPS60128434U JP S60128434 U JPS60128434 U JP S60128434U JP 5289683 U JP5289683 U JP 5289683U JP 5289683 U JP5289683 U JP 5289683U JP S60128434 U JPS60128434 U JP S60128434U
- Authority
- JP
- Japan
- Prior art keywords
- zero
- earth fault
- sequence
- directional relay
- sequence current
- 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は通常の地絡方向継電器の特性図、第２図はこの
考案による地絡方向継電器の原理図であり、図中の符号
は、Ｖｏとしはそれぞれ系統の零相電圧と電流、１は増
巾器、２は故障検出器、３は継電器である。なお各図中
の同一符号は、同一または相当部分を示すものとする。Fig. 1 is a characteristic diagram of a normal ground fault directional relay, and Fig. 2 is a principle diagram of a ground fault directional relay based on this invention. is an amplifier, 2 is a fault detector, and 3 is a relay. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
置、前記零相電圧■。を増巾する増巾器、該増巾器の故
障を検出する故障検出器を備え、この故障検出器が不動
作のときには前記増巾器の出力電圧と前記零相電流Ｉ。 との位相関係により、前記故障検出器が動作のときには
前記零相電圧Ｖ。と零相電流ちとの位相関係により地絡
事故の方向を判定させるようにしたことを特徴とする地
絡方向継電器。[Scope of claim for utility model registration] Zero-sequence voltage from the power system■. and zero-sequence current I. A device for deriving the zero-sequence voltage ■. and a failure detector for detecting a failure of the amplifier, and when the failure detector is inoperative, the output voltage of the amplifier and the zero-sequence current I. Due to the phase relationship with the zero-sequence voltage V when the fault detector is in operation. A ground fault direction relay characterized in that the direction of a ground fault fault is determined based on the phase relationship between the zero-sequence current and the zero-sequence current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5289683U JPS60128434U (en) | 1983-04-07 | 1983-04-07 | Earth fault directional relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5289683U JPS60128434U (en) | 1983-04-07 | 1983-04-07 | Earth fault directional relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60128434U true JPS60128434U (en) | 1985-08-29 |
Family
ID=30573251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5289683U Pending JPS60128434U (en) | 1983-04-07 | 1983-04-07 | Earth fault directional relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60128434U (en) |
-
1983
- 1983-04-07 JP JP5289683U patent/JPS60128434U/en active Pending
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