JPS6372562U - - Google Patents
Info
- Publication number
- JPS6372562U JPS6372562U JP16615686U JP16615686U JPS6372562U JP S6372562 U JPS6372562 U JP S6372562U JP 16615686 U JP16615686 U JP 16615686U JP 16615686 U JP16615686 U JP 16615686U JP S6372562 U JPS6372562 U JP S6372562U
- Authority
- JP
- Japan
- Prior art keywords
- line
- branch
- ground fault
- current detection
- circuit
- 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
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000004397 blinking Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Description
第１図は本考案の一実施例、及びその地絡表示
装置の適用例を示す説明図。第２図はπ型分岐回
路に対する電源の接続の態様を分類整理して示す
説明図。第３図ａ〜ｃは配電線と直列に挿入され
たπ型分岐回路と、地絡時の地絡表示装置の動作
状態を示す説明図であり、ａは正常の状態。ｂ，
ｃは地絡時の状態。このうちｂは電源が本線左側
にある場合、ｃは同右側にある場合を夫々示す。
第４図は従来の地絡表示装置の構成を示す説明図
。第５図は送電方向判別構能を有する地絡表示装
置として既に提案されているものを示す説明図。
第６図は第５図の装置の動作状態を示す説明図。
符号の説明、１……本線、１ｕ，１ｖ，１ｗ…
…各相の線路導体、３ｕ，３ｖ，３ｗ……π型分
岐回路、４―１，４―１′，４―２，４―２′…
…負荷、５―１，５―２……地絡表示装置、６…
…地絡点、７，７ｕ，７ｖ，７ｗ……電圧検出用
電極、８……絶縁体、９……接続点、１０，１０
１，１０２，１０３，１０ｕ，１０ｖ，１０ｗ…
…電流変成器、１１……加算器、１２……位相比
較回路、１３……表示灯点滅回路、１４，１４―
１，１４―２……表示灯、１５……差動増幅器、
１８……送電方向判別回路（３入力端子のもの）
、２０……電力伝送方向判別装置。
FIG. 1 is an explanatory diagram showing an embodiment of the present invention and an example of its application to a ground fault display device. FIG. 2 is an explanatory diagram categorizing and illustrating the manner of connecting the power supply to the π-type branch circuit. FIGS. 3a to 3c are explanatory diagrams showing operating states of a π-type branch circuit inserted in series with a distribution line and a ground fault display device at the time of a ground fault, and FIG. 3a shows a normal state. b,
c is the state at the time of ground fault. Of these, b indicates the case where the power source is on the left side of the main line, and c indicates the case where the power source is on the right side.
FIG. 4 is an explanatory diagram showing the configuration of a conventional ground fault display device. FIG. 5 is an explanatory diagram showing a ground fault display device that has already been proposed as having a power transmission direction determination function.
FIG. 6 is an explanatory diagram showing the operating state of the apparatus shown in FIG. 5. Explanation of symbols, 1...Main line, 1u, 1v, 1w...
...Line conductor of each phase, 3u, 3v, 3w...π type branch circuit, 4-1, 4-1', 4-2, 4-2'...
...Load, 5-1, 5-2...Ground fault display device, 6...
...Ground point, 7, 7u, 7v, 7w... Voltage detection electrode, 8... Insulator, 9... Connection point, 10, 10
1 , 10 2 , 10 3 , 10u, 10v, 10w...
... Current transformer, 11 ... Adder, 12 ... Phase comparison circuit, 13 ... Indicator light blinking circuit, 14, 14-
1, 14-2... Indicator light, 15... Differential amplifier,
18...Power transmission direction determination circuit (3 input terminals)
, 20...Power transmission direction determination device.
Claims (1)
型分岐回路の左右に夫々１箇づつ配置された本線
電流検出手段と、 該分岐回路分岐線上に配置された分岐線電流検
出手段と、 前記各電流検出手段の検出値の位相比較に基づ
いて本線上の電力伝送方向を判別する電子回路手
段とを有することを特徴とする配電線地絡表示用
の電力伝送方向判別装置。[Scope of claim for utility model registration] T-shaped or π inserted in series in the main line conductor
main line current detection means arranged one each on the left and right sides of the branch circuit, branch line current detection means arranged on the branch line of the branch circuit, and main line current detection means arranged on the branch line of the branch circuit; 1. A power transmission direction determining device for indicating a ground fault in a distribution line, comprising electronic circuit means for determining a power transmission direction on the line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986166156U JPH0545985Y2 (en) | 1986-10-29 | 1986-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986166156U JPH0545985Y2 (en) | 1986-10-29 | 1986-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6372562U true JPS6372562U (en) | 1988-05-14 |
| JPH0545985Y2 JPH0545985Y2 (en) | 1993-11-30 |
Family
ID=31096854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986166156U Expired - Lifetime JPH0545985Y2 (en) | 1986-10-29 | 1986-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545985Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011242195A (en) * | 2010-05-17 | 2011-12-01 | Hokkaido Electric Power Co Inc:The | Phase discrimination method and phase discrimination apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4865609A (en) * | 1971-12-14 | 1973-09-10 | ||
| JPS58219463A (en) * | 1982-06-15 | 1983-12-20 | Fuji Facom Corp | Fault point location system for 4 terminal transmission line |
| JPS6145977A (en) * | 1984-08-09 | 1986-03-06 | Takamatsu Electric Works Ltd | Detecting and displaying method of earth point of distribution line |
-
1986
- 1986-10-29 JP JP1986166156U patent/JPH0545985Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4865609A (en) * | 1971-12-14 | 1973-09-10 | ||
| JPS58219463A (en) * | 1982-06-15 | 1983-12-20 | Fuji Facom Corp | Fault point location system for 4 terminal transmission line |
| JPS6145977A (en) * | 1984-08-09 | 1986-03-06 | Takamatsu Electric Works Ltd | Detecting and displaying method of earth point of distribution line |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011242195A (en) * | 2010-05-17 | 2011-12-01 | Hokkaido Electric Power Co Inc:The | Phase discrimination method and phase discrimination apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0545985Y2 (en) | 1993-11-30 |
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