JPS5897939U - Ungrounded system high voltage distribution line ground fault fault feeder discrimination device - Google Patents
Ungrounded system high voltage distribution line ground fault fault feeder discrimination deviceInfo
- Publication number
- JPS5897939U JPS5897939U JP19267381U JP19267381U JPS5897939U JP S5897939 U JPS5897939 U JP S5897939U JP 19267381 U JP19267381 U JP 19267381U JP 19267381 U JP19267381 U JP 19267381U JP S5897939 U JPS5897939 U JP S5897939U
- Authority
- JP
- Japan
- Prior art keywords
- distribution line
- voltage distribution
- system high
- fault
- high voltage
- 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.)
- Granted
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
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図は現行配電用変電所の非接地式配電線路の地絡事
故保護方式の概要図、第２図は本考案装置の一実施例を
示す概要図、第３図は高圧フィーダ１線地絡事故時の時
放電流の大きさを示す概念図、第４図は本考案の判別過
程を示すブロック図、第５図は警報接点および各フィー
ダの零相変流器の出力値のみを表示する場合の概念図、
第６図はバンド幅表示をする１フィーダ当りの表示器の
略 □図、第７図は同表示器の内部接続図、第８
図は上記表示器を数フィーダ分一括して成る表示器の略
図である。
７・・・フィーダ、９・・・零相変流器、１０・・・比
較器、１１・・・表示器。
目
２θ 第７図゛
＼
５８図Figure 1 is a schematic diagram of the ground fault protection method for ungrounded distribution lines in current distribution substations, Figure 2 is a schematic diagram showing one embodiment of the device of the present invention, and Figure 3 is a high-voltage feeder single line ground fault protection system. A conceptual diagram showing the magnitude of the discharge current in the event of a fault, Figure 4 is a block diagram showing the determination process of the present invention, and Figure 5 shows only the output values of the alarm contact and the zero-phase current transformer of each feeder. Conceptual diagram when
Figure 6 is an abbreviation of the display per feeder that displays the bandwidth. Figure 7 is an internal connection diagram of the same display.
The figure is a schematic diagram of a display device made up of several feeders of the above-mentioned display devices. 7... Feeder, 9... Zero-phase current transformer, 10... Comparator, 11... Display. Eye 2θ Figure 7゛＼ Figure 58
Claims (1)
フィーダに設置する高感度、高性能零相変流器と、各零
相変流器によって検出された零相電流を入力して定レベ
ル以上の絶縁値を比較する比較器と、比較器の出力を表
示する表示器とから成る非接地系統高圧配電線地絡事故
フィーダ判別装置。In an ungrounded system high-voltage distribution line, high-sensitivity, high-performance zero-sequence current transformers installed in all feeders belonging to the same bank and the zero-sequence current detected by each zero-sequence current transformer are input to A ground fault feeder determination device for an ungrounded system high voltage distribution line, consisting of a comparator that compares insulation values and a display that displays the output of the comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19267381U JPS5897939U (en) | 1981-12-25 | 1981-12-25 | Ungrounded system high voltage distribution line ground fault fault feeder discrimination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19267381U JPS5897939U (en) | 1981-12-25 | 1981-12-25 | Ungrounded system high voltage distribution line ground fault fault feeder discrimination device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5897939U true JPS5897939U (en) | 1983-07-04 |
| JPH0237235Y2 JPH0237235Y2 (en) | 1990-10-09 |
Family
ID=30106067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19267381U Granted JPS5897939U (en) | 1981-12-25 | 1981-12-25 | Ungrounded system high voltage distribution line ground fault fault feeder discrimination device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5897939U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115130A (en) * | 1980-02-16 | 1981-09-10 | Takamatsu Electric Works Ltd | Grounddfault trouble discriminating and indicating device |
-
1981
- 1981-12-25 JP JP19267381U patent/JPS5897939U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115130A (en) * | 1980-02-16 | 1981-09-10 | Takamatsu Electric Works Ltd | Grounddfault trouble discriminating and indicating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0237235Y2 (en) | 1990-10-09 |
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