CN105759181A - Cross-linked polyethylene cable detecting device - Google Patents
Cross-linked polyethylene cable detecting device Download PDFInfo
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- CN105759181A CN105759181A CN201410799141.4A CN201410799141A CN105759181A CN 105759181 A CN105759181 A CN 105759181A CN 201410799141 A CN201410799141 A CN 201410799141A CN 105759181 A CN105759181 A CN 105759181A
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- circuit
- collecting card
- data collecting
- signal conditioning
- detecting device
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- Testing Relating To Insulation (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention provides a cross-linked polyethylene cable detecting device including a sound emitting sensor, a gating circuit, a trigger signal modulating circuit, an analog signal processing circuit, a data collecting card and an upper computer. The sound emitting sensor is disposed on a cable terminal and is a PVDF piezoelectric film paster. The specification of the gating circuit is SCR2N4200. The trigger signal modulating circuit is an AD592 constant current compensation circuit. The data collecting card is an NET2801 single-channel Ethernet data collecting card. According to the invention, an ultrasonic wave method is adopted for performing local discharge point detection on cable accessories. Novel high polymer materials are adopted for applying to a paster type ultrasonic transducing element, so that a shortcoming of low flexibility of traditional piezoelectric ceramic material is overcome. A high speed collection module and a network data transmission method are adopted for suiting requirements for installation, arrangement and data transmission of an electric industrial field. The device provided by the invention can realize positioning and judgment of inner discharge points appearing due to insulation defects.
Description
Technical field
The invention belongs to power equipment field of auxiliary, especially relates to a kind of twisted polyethylene cable detecting device.
Background technology
Crosslinked polyethylene has been widely used in transmission line of electricity and the power distribution network of each electric pressure of power system.But it is as cable accessory to increase year by year, owing to the fault of construction of cable accessory own, making and mounting process are not in place, and the complexity of running environment, actual motion can occur insulation fault unavoidably.Along with the accumulative effect that cable accessory working voltage increases and meets for a long time, various insulation defects are easily caused shelf depreciation, and the cable fault caused mostly occurs in cable accessory and termination.
Summary of the invention
The invention to solve above technical problem, it is provided that a kind of twisted polyethylene cable detecting device.
For solving above-mentioned technical problem, the invention the technical scheme is that twisted polyethylene cable detecting device, including acoustic emission sensor, gating circuit, trigger signal conditioning circuit, analog signal processing circuit, data collecting card and host computer, described acoustic emission sensor is positioned at cable termination, described acoustic emission sensor, gating circuit, trigger signal conditioning circuit, analog signal processing circuit, data collecting card and host computer are sequentially connected, described acoustic emission sensor is PVDF piezoelectric membrane paster, described gating circuit is SCR2N4200, the constant current that described triggering signal conditioning circuit is AD592 compensates circuit, described data collecting card is NET2801 single channel Ethernet data capture card.
Further, also include power supply and display device, described display device includes Waveform display apparatus and discharge display, described power supply is connected with described triggering signal conditioning circuit and described data acquisition respectively, described Waveform display apparatus is connected with described triggering signal conditioning circuit, and described discharge display is connected with described data collecting card.
The invention has the advantage that and has the benefit effect that twisted polyethylene cable detecting device, based on supercritical ultrasonics technology, cable accessory is carried out local and put a detection, adopt novel high polymer material to be applied to SMD ultrasonic transduction element, overcome the shortcoming that conventional piezoelectric ceramic material sensitivity is low；Adopt high speed acquisition module and network data transmission mode, to adapt to the requirement of the on-the-spot installation of power industry, layout and data transmission.The invention can realize the location to insulation defect internal discharge and judge.
Accompanying drawing explanation
Fig. 1 is the invention structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is elaborated.
As shown in Figure 1, twisted polyethylene cable detecting device, including acoustic emission sensor, gating circuit, trigger signal conditioning circuit, analog signal processing circuit, data collecting card and host computer, described acoustic emission sensor is positioned at cable termination, described acoustic emission sensor, gating circuit, trigger signal conditioning circuit, analog signal processing circuit, data collecting card and host computer are sequentially connected, described acoustic emission sensor is PVDF piezoelectric membrane paster, described gating circuit is SCR2N4200, the constant current that described triggering signal conditioning circuit is AD592 compensates circuit, described data collecting card is NET2801 single channel Ethernet data capture card.
Also include power supply and display device, described display device includes Waveform display apparatus and discharge display, described power supply is connected with described triggering signal conditioning circuit and described data acquisition respectively, described Waveform display apparatus is connected with described triggering signal conditioning circuit, and described discharge display is connected with described data collecting card.
Twisted polyethylene cable detecting device, carries out local based on supercritical ultrasonics technology to cable accessory and puts a detection, adopt novel high polymer material to be applied to SMD ultrasonic transduction element, overcome the shortcoming that conventional piezoelectric ceramic material sensitivity is low；Adopt high speed acquisition module and network data transmission mode, to adapt to the requirement of the on-the-spot installation of power industry, layout and data transmission.The invention can realize the location to insulation defect internal discharge and judge.
Above an embodiment of the invention is described in detail, but described content has been only the preferred embodiment of the invention, it is impossible to be considered the practical range for limiting the invention.All equalizations made according to the invention application range change and improvement etc., all should still belong within the patent covering scope of the invention.
Claims (2)
1. twisted polyethylene cable detecting device, it is characterized in that: include acoustic emission sensor, gating circuit, trigger signal conditioning circuit, analog signal processing circuit, data collecting card and host computer, described acoustic emission sensor is positioned at cable termination, described acoustic emission sensor, gating circuit, trigger signal conditioning circuit, analog signal processing circuit, data collecting card and host computer are sequentially connected, described acoustic emission sensor is PVDF piezoelectric membrane paster, described gating circuit is SCR2N4200, the constant current that described triggering signal conditioning circuit is AD592 compensates circuit, described data collecting card is NET2801 single channel Ethernet data capture card.
2. twisted polyethylene cable detecting device according to claim 1, it is characterized in that: also include power supply and display device, described display device includes Waveform display apparatus and discharge display, described power supply is connected with described triggering signal conditioning circuit and described data acquisition respectively, described Waveform display apparatus is connected with described triggering signal conditioning circuit, and described discharge display is connected with described data collecting card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799141.4A CN105759181A (en) | 2014-12-19 | 2014-12-19 | Cross-linked polyethylene cable detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799141.4A CN105759181A (en) | 2014-12-19 | 2014-12-19 | Cross-linked polyethylene cable detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105759181A true CN105759181A (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410799141.4A Pending CN105759181A (en) | 2014-12-19 | 2014-12-19 | Cross-linked polyethylene cable detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105759181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830381A (en) * | 2020-08-28 | 2020-10-27 | 重庆大学 | Watchband-adjustable full-laminated cable partial discharge ultrasonic sensor and online monitoring method |
-
2014
- 2014-12-19 CN CN201410799141.4A patent/CN105759181A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830381A (en) * | 2020-08-28 | 2020-10-27 | 重庆大学 | Watchband-adjustable full-laminated cable partial discharge ultrasonic sensor and online monitoring method |
| CN111830381B (en) * | 2020-08-28 | 2023-08-15 | 重庆大学 | Watchband-adjustable full-attached cable partial discharge ultrasonic sensor and online monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160713 |
|
| WD01 | Invention patent application deemed withdrawn after publication |