JPS5526465A - Faulty point marking system - Google Patents
Faulty point marking systemInfo
- Publication number
- JPS5526465A JPS5526465A JP9967378A JP9967378A JPS5526465A JP S5526465 A JPS5526465 A JP S5526465A JP 9967378 A JP9967378 A JP 9967378A JP 9967378 A JP9967378 A JP 9967378A JP S5526465 A JPS5526465 A JP S5526465A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- distance
- voltage
- point
- faulty
- 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
- Locating Faults (AREA)
Abstract
PURPOSE: To obtain a high-precision faulty point marking system which can be applied for a wide range, by using measured accident current and voltage quantities to mark the accident generation point of a transmission line.
CONSTITUTION: In case that a fault occurs at point F of distance X from electric place A in a specific phase of the n-phase transmission line, specific frequency components are extractef from the voltage and the current which are measured in electric place A; and by applying the characteristic of the transmission line as a distribution constant circuit for a high-degree expansion concerning distance which is expressed by using a line constant, VFK=0 and VFi=VFj are true for K-phase ground-fault and j-phase short-circuit respectively in respect to faulty phase voltage VF indicated as the high-degree expression of distance X, and then, the faulty point is marked by solving this equation for distance X. Concretely, voltage and current information obtained through n-number sets of transformers 2 in electric place A are converted to a digital quantity by A/D converter 3, and the faulty point is marked by digital computer 4 which stores previously the expansion above and is displayed on display equipment 5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53099673A JPS592353B2 (en) | 1978-08-15 | 1978-08-15 | Fault point location method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53099673A JPS592353B2 (en) | 1978-08-15 | 1978-08-15 | Fault point location method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5526465A true JPS5526465A (en) | 1980-02-25 |
| JPS592353B2 JPS592353B2 (en) | 1984-01-18 |
Family
ID=14253541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53099673A Expired JPS592353B2 (en) | 1978-08-15 | 1978-08-15 | Fault point location method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592353B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4559491A (en) * | 1982-09-14 | 1985-12-17 | Asea Aktiebolag | Method and device for locating a fault point on a three-phase power transmission line |
| KR100709616B1 (en) * | 2005-11-15 | 2007-04-19 | 최면송 | Expression method of 1-line ground fault in underground cable system using distributed constant circuit analysis |
| CN100397089C (en) * | 2002-06-20 | 2008-06-25 | Abb股份有限公司 | Fault location using current and voltage measurements at one end of a line |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130944A (en) * | 1974-07-08 | 1976-03-16 | Bbc Brown Boveri & Cie |
-
1978
- 1978-08-15 JP JP53099673A patent/JPS592353B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130944A (en) * | 1974-07-08 | 1976-03-16 | Bbc Brown Boveri & Cie |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4559491A (en) * | 1982-09-14 | 1985-12-17 | Asea Aktiebolag | Method and device for locating a fault point on a three-phase power transmission line |
| CN100397089C (en) * | 2002-06-20 | 2008-06-25 | Abb股份有限公司 | Fault location using current and voltage measurements at one end of a line |
| KR100709616B1 (en) * | 2005-11-15 | 2007-04-19 | 최면송 | Expression method of 1-line ground fault in underground cable system using distributed constant circuit analysis |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS592353B2 (en) | 1984-01-18 |
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