CN102109568A - Cable fault diagnosis device for direct current (DC) impulse voltage generator - Google Patents
Cable fault diagnosis device for direct current (DC) impulse voltage generator Download PDFInfo
- Publication number
- CN102109568A CN102109568A CN2009103124486A CN200910312448A CN102109568A CN 102109568 A CN102109568 A CN 102109568A CN 2009103124486 A CN2009103124486 A CN 2009103124486A CN 200910312448 A CN200910312448 A CN 200910312448A CN 102109568 A CN102109568 A CN 102109568A
- Authority
- CN
- China
- Prior art keywords
- voltage
- generator
- gap
- cable fault
- discharge ball
- 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
- 238000003745 diagnosis Methods 0.000 title abstract 2
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The invention discloses a cable fault diagnosis device for a direct current (DC) impulse voltage generator. The device consists of a high-voltage DC generator, a charging capacitor (2) and a discharge ball-gap (3), wherein, the high-voltage DC generator is the existing DC withstand voltage generator; the charging capacitor (2) and the discharge ball-gap (3) are switched in the charging capacitor (2) and the discharge ball-gap (3); and charging capacitance is 10-20mu F. The device is simply manufactured, and a fault can be found and judged only by connecting the capacitor and the discharge ball-gap on the existing high-voltage DC generator, thus being simple, economical and efficient; and meanwhile application functions of the high-voltage DC generator are expanded without affecting functions of the original equipment. The device works stably, accurately and reliably, thus meeting the technical requirements for production.
Description
Technical field
The present invention relates to a kind of DC voltage surge generator cable fault diagnostic device, belong to 6kV electric system detection technique field.
Background technology
At present, 6KV system of domestic aluminium manufacturer generally uses cross-inked polyethylene power cable, this cable in operational process because defective or insulation course outer damage that exist to make all can cause the cable grounding fault.When breaking down, present high resistive earth fault mostly, add aluminium manufacturer's production environment complexity, many high-tech checkout equipments all can't accurately discern and judge this type fault, even use high-tech computer test system also can't accurately judge the trouble spot.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of DC voltage surge generator cable fault diagnostic device is provided, this device can make things convenient for the maintainer that the power cable fault point is accurately judged, with overcome cable that prior art exists in operational process because the fault that defective on making or insulation course outer damage produce such as can't detect at deficiency.
The present invention takes following technical scheme: it comprises high-voltage D.C. generator, inserts charging capacitor, ball discharge gap in the circuit of high-voltage D.C. generator.
Charging capacitor is 10～20 μ F.
When earth fault takes place owing to the defective on making or insulation course outer damage in the 6KV power cable, the intermittence direct current surge voltage that DC voltage surge generator cable fault diagnostic device produces is added on the power cable earth fault equably, send discharging sound in the power cable earth fault, make things convenient for the maintainer that the power cable fault point is accurately judged.Avoided existing equipment output dc high voltage can not be effectively to the differentiation of power cable earth fault.
The present invention makes simply, only need connect a capacitor and a ball discharge gap on existing high-voltage D.C. generator, just can realize the troubleshooting judgement, and is simple, economical, efficient.On the basis of the function that does not influence original equipment, expanded the functions of use of high-voltage D.C. generator, this device working stability, accurate, reliable can satisfy manufacturing requirements.
Description of drawings:
Fig. 1 is the circuit diagram of prior art;
Fig. 2 is a circuit diagram of the present invention.
Embodiment
Embodiments of the invention: the present invention forms and comprises high-voltage D.C. generator 1, charging capacitor 2, ball discharge gap 3.High-voltage D.C. generator 1 is existing DC break down voltage generator, and model KGF-60 carries out secondary development to this DC break down voltage equipment, as schematically shown in Figure 2, installs charging capacitor 2, ball discharge gap 3 additional on the circuit of this high-voltage D.C. generator.For obtaining enough sparking voltages, in the loop, seal in sphere gap 2, and connect the capacitor of 10～20 μ F.(20～30KV), capacitor C is charging earlier, again to gap discharge before voltage rises to gap discharge voltage.Send discharging sound at the power cable fault point.The maintainer promptly judges the power cable fault point by this discharging sound, and accurately and timely handles.
Joining I II section inlet wire (about 1100 meters of total lengths, twisted polyethylene cable and oil compression cable hybrid junction) in aluminium manufacturer old six takes place to use this device that the power cable fault point is accurately judged in the high resistive earth fault.
Claims (2)
1. DC voltage surge generator cable fault diagnostic device, it comprises high-voltage D.C. generator (1), it is characterized in that: insert charging capacitor (2), ball discharge gap (3) in the circuit of high-voltage D.C. generator (1).
2. DC voltage surge generator cable fault diagnostic device according to claim 1 is characterized in that: charging capacitor (2) is 10～20 μ F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103124486A CN102109568A (en) | 2009-12-28 | 2009-12-28 | Cable fault diagnosis device for direct current (DC) impulse voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103124486A CN102109568A (en) | 2009-12-28 | 2009-12-28 | Cable fault diagnosis device for direct current (DC) impulse voltage generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102109568A true CN102109568A (en) | 2011-06-29 |
Family
ID=44173779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103124486A Pending CN102109568A (en) | 2009-12-28 | 2009-12-28 | Cable fault diagnosis device for direct current (DC) impulse voltage generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102109568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200251A (en) * | 2021-12-20 | 2022-03-18 | 云南德胜钢铁有限公司 | Power grid fault detection and early warning device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874521Y (en) * | 2005-07-01 | 2007-02-28 | 淄博威特电气有限公司 | Cable fault pre-determined spot detector |
| CN201352250Y (en) * | 2008-12-26 | 2009-11-25 | 西安四方机电有限责任公司 | Discharge device for detecting cable fault based on secondary pulse process |
-
2009
- 2009-12-28 CN CN2009103124486A patent/CN102109568A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874521Y (en) * | 2005-07-01 | 2007-02-28 | 淄博威特电气有限公司 | Cable fault pre-determined spot detector |
| CN201352250Y (en) * | 2008-12-26 | 2009-11-25 | 西安四方机电有限责任公司 | Discharge device for detecting cable fault based on secondary pulse process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200251A (en) * | 2021-12-20 | 2022-03-18 | 云南德胜钢铁有限公司 | Power grid fault detection and early warning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110629 |