JPH0425435U - - Google Patents
Info
- Publication number
- JPH0425435U JPH0425435U JP6733190U JP6733190U JPH0425435U JP H0425435 U JPH0425435 U JP H0425435U JP 6733190 U JP6733190 U JP 6733190U JP 6733190 U JP6733190 U JP 6733190U JP H0425435 U JPH0425435 U JP H0425435U
- Authority
- JP
- Japan
- Prior art keywords
- zero
- distribution line
- ground fault
- master station
- detecting
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 4
- 238000005070 sampling Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図ないし第５図は本考案による配電線の地
絡区間検出装置の１実施例を示し、第１図は配電
線の全体構成図、第２図は零相電流の特性図、第
３図及び第４図はそれぞれ親局及び子局の内部ブ
ロツク図、第５図は動作説明用フローチヤート、
第６図は従来例を示す配電線の全体構成図である
。
１……母線、３……配電線、４ａ，４ｂ，４ｃ
，４ｄ……区分開閉器、６……零相変圧器、９…
…親局、１０ａ，１０ｂ，１０ｃ，１０ｄ……零
相変流器、１１ａ，１１ｂ，１１ｃ，１１ｄ……
子局、１３……ＣＰＵ。
1 to 5 show one embodiment of the ground fault section detection device of a distribution line according to the present invention, in which FIG. 1 is an overall configuration diagram of a distribution line, FIG. 2 is a zero-sequence current characteristic diagram, and FIG. 4 and 4 are internal block diagrams of the master station and slave station, respectively, and FIG. 5 is a flowchart for explaining the operation.
FIG. 6 is an overall configuration diagram of a conventional power distribution line. 1...Bus bar, 3...Distribution line, 4a, 4b, 4c
, 4d... Sectional switch, 6... Zero-phase transformer, 9...
...Main station, 10a, 10b, 10c, 10d...Zero-phase current transformer, 11a, 11b, 11c, 11d...
Slave station, 13...CPU.
Claims (1)
零相電圧により地絡事故を検出する手段と、前記
地絡事故の検出により零相電流のサンプリング指
令を送信する伝送装置親局とを設け、 前記配電線に縦列接続された複数の区分開閉器
毎に、前記配電線の零相電流を検出する手段と、
前記親局からのサンプリング指令により零相電流
一定周期サンプリングして前記親局に送信する伝
送装置子局とを設け、 かつ、前記親局に、前記各子局から受信したそ
れぞれのサンプリングデータの位相を比較して位
相変化区間を地絡事故区間として判定する判定手
段を設けた配電線の地絡区間検出装置。[Scope of Claim for Utility Model Registration] Means for detecting a ground fault by the zero-sequence voltage at the power transmission start end to a substation at the power transmission start end of a distribution line, and transmitting a zero-sequence current sampling command upon detection of the ground fault fault. a transmission device master station, and means for detecting a zero-sequence current of the distribution line for each of a plurality of sectional switches connected in series to the distribution line;
a transmission device slave station that samples a zero-phase current at a constant period and transmits it to the master station according to a sampling command from the master station; A ground fault section detection device for a power distribution line, comprising a determination means for comparing the phase change sections and determining the phase change section as a ground fault section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6733190U JPH0425435U (en) | 1990-06-25 | 1990-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6733190U JPH0425435U (en) | 1990-06-25 | 1990-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0425435U true JPH0425435U (en) | 1992-02-28 |
Family
ID=31600811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6733190U Pending JPH0425435U (en) | 1990-06-25 | 1990-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425435U (en) |
-
1990
- 1990-06-25 JP JP6733190U patent/JPH0425435U/ja active Pending