CA2637487A1 - Methode de diagnostic des cables electriques faisant appel a la technique de stratigraphie - Google Patents
Methode de diagnostic des cables electriques faisant appel a la technique de stratigraphie Download PDFInfo
- Publication number
- CA2637487A1 CA2637487A1 CA 2637487 CA2637487A CA2637487A1 CA 2637487 A1 CA2637487 A1 CA 2637487A1 CA 2637487 CA2637487 CA 2637487 CA 2637487 A CA2637487 A CA 2637487A CA 2637487 A1 CA2637487 A1 CA 2637487A1
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- Prior art keywords
- cable
- voltage
- frequency
- impedance
- dissipation factor
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/11—Locating faults in cables, transmission lines, or networks using pulse reflection methods
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Méthodes, systèmes et appareil dessai de diagnostic de câbles qui utilisent les principes « donde stationnaire » pour faciliter lidentification et la situation de défauts disolation. Les méthodes mesurent les facteurs de dissipation et les constantes diélectriques associées à lisolation et à limpédance du câble conducteur à des endroits ou sur des sections le long du câble. La méthode présentée comprend ceci : i) connecter une source de tension alternative à un câble à une « extrémité émettrice »; ii) appliquer une tension sur le câble selon une première fréquence pour établir une onde en déplacement qui se reflète à « lextrémité réceptrice » du câble; iii) permettre détablir un motif donde stationnaire le long du câble; iv) mesurer la perte de puissance complexe totale (S in) à lextrémité émettrice; v) calculer la tension de londe stationnaire à un point ou sur une section du câble en se fondant sur limpédance de charge (Z L) connectée à lextrémité réceptrice et limpédance caractéristique (Z o) du câble ou encore les paramètres de câble mesurés ou calculés pour la première fréquence de la source de tension; et vi) répéter les étapes précédentes dans différentes conditions ou selon différents paramètres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2637487A CA2637487C (fr) | 2008-07-09 | 2008-07-09 | Methode de diagnostic des cables electriques faisant appel a la technique de stratigraphie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2637487A CA2637487C (fr) | 2008-07-09 | 2008-07-09 | Methode de diagnostic des cables electriques faisant appel a la technique de stratigraphie |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2637487A1 true CA2637487A1 (fr) | 2010-01-09 |
| CA2637487C CA2637487C (fr) | 2016-10-04 |
Family
ID=41508477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2637487A Active CA2637487C (fr) | 2008-07-09 | 2008-07-09 | Methode de diagnostic des cables electriques faisant appel a la technique de stratigraphie |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2637487C (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526412A (zh) * | 2016-10-11 | 2017-03-22 | 许继集团有限公司 | 一种适用于光伏场直流电缆接地故障定位的方法和装置 |
| CN116953569A (zh) * | 2022-04-17 | 2023-10-27 | 华北电力大学（保定） | 一种基于输入阻抗谱的10kV三芯电缆故障类型识别方法 |
-
2008
- 2008-07-09 CA CA2637487A patent/CA2637487C/fr active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526412A (zh) * | 2016-10-11 | 2017-03-22 | 许继集团有限公司 | 一种适用于光伏场直流电缆接地故障定位的方法和装置 |
| CN106526412B (zh) * | 2016-10-11 | 2019-02-05 | 许继集团有限公司 | 一种适用于光伏场直流电缆接地故障定位的方法和装置 |
| CN116953569A (zh) * | 2022-04-17 | 2023-10-27 | 华北电力大学（保定） | 一种基于输入阻抗谱的10kV三芯电缆故障类型识别方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2637487C (fr) | 2016-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20130111 |