CN207908624U - A kind of cable exchange oscillation wave partial discharge detection equipment - Google Patents
A kind of cable exchange oscillation wave partial discharge detection equipment Download PDFInfo
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- CN207908624U CN207908624U CN201820394582.XU CN201820394582U CN207908624U CN 207908624 U CN207908624 U CN 207908624U CN 201820394582 U CN201820394582 U CN 201820394582U CN 207908624 U CN207908624 U CN 207908624U
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- partial discharge
- cable
- oscillation wave
- detection equipment
- electronic switch
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Abstract
The utility model discloses a kind of cables to exchange oscillation wave partial discharge detection equipment, belong to power cable technical field, including variable-frequency power sources, high-pressure electronic switch K1, high-pressure electronic switch K2, resonance reactor L1, exciting transformer T1, divider and partial discharge collector, further include two change-over panels, optical fiber network interface card and industrial personal computer, it solves the technical issues of being detected to cable oscillation wave partial discharge using fiber optic communication, the utility model uses exchange oscillation wave of the alternating current source as driving source, 10kV and 35kV cables can not only be applicable in, apply also for 110kV and 220kV cables.
Description
Technical field
The utility model belongs to power cable technical field more particularly to a kind of cable exchange oscillation wave partial discharge detection is set
It is standby.
Background technology
The preceding oscillation wave of cable in the market partial discharge detection mainly based on import equipment, substantially uses DC source as sharp
Source is encouraged, direct current oscillation wave is commonly called as.Direct current oscillation wave is to cut off direct current after completing charging using DC high-voltage source as charge power supply
Source, and resonance reactor is shorted to by ground by high-voltage switch gear, so that resonance reactor (inductance L) is formed with cable (capacitance C)
The damped oscillation of decaying, by signal in Detection and Extraction waveform, analysis cable partial discharge is with the presence or absence of exceeded, and to partial discharge
The location of pulse carries out positioning measurement, and construction personnel is reminded to go to overhaul, and investigates.Direct current oscillation wave feature be it is small, easily
In carrying, but it is relatively high for high-voltage switch gear requirement, or even its use in voltage levels cable is therefore limited, make it only
It is applied in 10kV, 35kV grade cables.
Utility model content
The purpose of this utility model is to provide a kind of cable exchange oscillation wave partial discharge detection equipment, solves using optical fiber
The technical issues of communication is detected cable oscillation wave partial discharge.
To achieve the above object, the utility model adopts the following technical solution：
A kind of cable exchange oscillation wave partial discharge detection equipment, including variable-frequency power sources, high-pressure electronic switch K1, high-pressure electronic are opened
Close K2, resonance reactor L1, exciting transformer T1, divider and partial discharge collector, further include two change-over panels, optical fiber network interface card and
The input terminal of industrial personal computer, exciting transformer T1 connects variable-frequency power sources, and high-pressure electronic switch K1 is connected on exciting transformer T1 and becomes
In the link circuit of frequency power, the output end of exciting transformer T1 is separately connected high-pressure electronic switch K2 and resonance reactor L1,
Resonance reactor L1 is linked in sequence divider and test cable successively, and divider connects partial discharge collector, high-pressure electronic switch K1
It is separately connected a change-over panel with high-pressure electronic switch K2, all change-over panels connect optical fiber network interface card, optical fiber network interface card by optical fiber
It is communicated with industrial personal computer；Partial discharge collector is communicated with industrial personal computer；
The change-over panel includes optic module, ARM controller, optical coupling isolator and I/O interface, and optic module is controlled with ARM
The serial ports of device connects, and the input terminal of optical coupling isolator and the I/O port of ARM controller connect, and the output end of optical coupling isolator connects IO
Interface.
The optic module is SFP-GE-T gigabit power port opto-electronic conversion optic modules；The I/O interface is switching value wiring
Terminal.
The variable-frequency power sources is AC frequency conversion power supply.
The partial discharge collector is Partial discharge detector.
The resonance reactor L1 constitutes series resonant tank with tested cable.
A kind of cable described in the utility model exchanges oscillation wave partial discharge detection equipment, solves and is using fiber optic communication pair
The technical issues of cable oscillation wave partial discharge is detected, the utility model use exchange oscillation wave of the alternating current source as driving source,
10kV and 35kV cables can not only be applicable in, 110kV and 220kV cables are applied also for.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram block diagram of change-over panel.
Specific implementation mode
By Fig. 1 oscillation wave partial discharge detection equipment, including variable-frequency power sources, high-pressure electronic are exchanged with a kind of cable shown in Fig. 2
Switch K1, high-pressure electronic switch K2, resonance reactor L1, exciting transformer T1, divider and partial discharge collector, further include two
The input terminal of change-over panel, optical fiber network interface card and industrial personal computer, exciting transformer T1 connects variable-frequency power sources, and high-pressure electronic switch K1 is connected on
In exciting transformer T1 and the link circuit of variable-frequency power sources, the output end of exciting transformer T1 is separately connected high-pressure electronic switch K2
It being linked in sequence successively divider and test cable with resonance reactor L1, resonance reactor L1, divider connects partial discharge collector,
High-pressure electronic switch K1 and high-pressure electronic switch K2 are separately connected a change-over panel, and all change-over panels connect optical fiber by optical fiber
Network interface card, optical fiber network interface card are communicated with industrial personal computer；Partial discharge collector is communicated with industrial personal computer；
The change-over panel includes optic module, ARM controller, optical coupling isolator and I/O interface, and optic module is controlled with ARM
The serial ports of device connects, and the input terminal of optical coupling isolator and the I/O port of ARM controller connect, and the output end of optical coupling isolator connects IO
Interface.
The optic module is SFP-GE-T gigabit power port opto-electronic conversion optic modules；The I/O interface is switching value wiring
Terminal.
The ARM controller is ARM9 controllers (the ARM9 controllers are the prior art, therefore are not described in detail).
The variable-frequency power sources is AC frequency conversion power supply.
The partial discharge collector is that (Partial discharge detector is the prior art, therefore not detailed for Partial discharge detector
Narration).
The resonance reactor L1 constitutes series resonant tank with tested cable.
The utility model provides alternating voltage using variable-frequency power sources, in resonance reactor L1 and tested cable high pressure resonance
In the case of, it is disconnected using industrial personal computer control high-pressure electronic switch K1, cut-out variable-frequency power sources output, while industrial personal computer control excitation
The high-pressure electronic switch K2 of the sides transformer T1 is closed, and so that resonance reactor L1 is formed decaying damped oscillation with tested cable, together
When the waveform of damp oscillatory wave is detected by divider and partial discharge collector, last industrial personal computer carries out the waveform of damp oscillatory wave
Analysis, calculates the partial discharge amount of subject cable, and by pulse reflection method principle, positions the distance of exceeded partial discharge distribution of pulses.
Industrial personal computer controls the action of high-pressure electronic switch K1 and high-pressure electronic switch K2 by optical fiber, and reduction is produced because of interference
Raw malfunction.
A kind of cable described in the utility model exchanges oscillation wave partial discharge detection equipment, solves and is using fiber optic communication pair
The technical issues of cable oscillation wave partial discharge is detected, the utility model use exchange oscillation wave of the alternating current source as driving source,
10kV and 35kV cables can not only be applicable in, 110kV and 220kV cables are applied also for, the utility model uses alternating current source as sharp
Source is encouraged, cable voltage class is unrestricted, and alternating current source is also closer to cable actual motion state.
Claims (5)
1. a kind of cable exchanges oscillation wave partial discharge detection equipment, including variable-frequency power sources, high-pressure electronic switch K1, high-pressure electronic switch
K2, resonance reactor L1, exciting transformer T1, divider and partial discharge collector, it is characterised in that：Further include two change-over panels,
The input terminal of optical fiber network interface card and industrial personal computer, exciting transformer T1 connects variable-frequency power sources, and high-pressure electronic switch K1 is connected on excitation-transformation variable
In depressor T1 and the link circuit of variable-frequency power sources, the output end of exciting transformer T1 is separately connected high-pressure electronic switch K2 and resonance
Reactor L1, resonance reactor L1 are linked in sequence divider and test cable successively, and divider connects partial discharge collector, high-voltage electricity
Sub switch K1 and high-pressure electronic switch K2 is separately connected a change-over panel, and all change-over panels connect optical fiber network interface card by optical fiber,
Optical fiber network interface card is communicated with industrial personal computer；Partial discharge collector is communicated with industrial personal computer；
The change-over panel includes optic module, ARM controller, optical coupling isolator and I/O interface, optic module and ARM controller
Serial ports connects, and the input terminal of optical coupling isolator and the I/O port of ARM controller connect, and the output end connection IO of optical coupling isolator connects
Mouthful.
2. a kind of cable as described in claim 1 exchanges oscillation wave partial discharge detection equipment, it is characterised in that：The optic module
For SFP-GE-T gigabit power port opto-electronic conversion optic modules；The I/O interface is switching value connecting terminal.
3. a kind of cable as described in claim 1 exchanges oscillation wave partial discharge detection equipment, it is characterised in that：The variable-frequency power sources
For AC frequency conversion power supply.
4. a kind of cable as described in claim 1 exchanges oscillation wave partial discharge detection equipment, it is characterised in that：The partial discharge acquisition
Device is Partial discharge detector.
5. a kind of cable as described in claim 1 exchanges oscillation wave partial discharge detection equipment, it is characterised in that：The resonance reactance
Device L1 constitutes series resonant tank with tested cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820394582.XU CN207908624U (en) | 2018-03-22 | 2018-03-22 | A kind of cable exchange oscillation wave partial discharge detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820394582.XU CN207908624U (en) | 2018-03-22 | 2018-03-22 | A kind of cable exchange oscillation wave partial discharge detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207908624U true CN207908624U (en) | 2018-09-25 |
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ID=63559304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820394582.XU Active CN207908624U (en) | 2018-03-22 | 2018-03-22 | A kind of cable exchange oscillation wave partial discharge detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207908624U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109581161A (en) * | 2018-12-18 | 2019-04-05 | 西安交通大学 | A kind of 10kV transformer Portable PD On-Line detection system based on oscillation wave |
| CN112034316A (en) * | 2020-08-31 | 2020-12-04 | 国网山东省电力公司电力科学研究院 | Optical isolator for detecting partial discharge of oscillation wave and partial discharge detection device |
-
2018
- 2018-03-22 CN CN201820394582.XU patent/CN207908624U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109581161A (en) * | 2018-12-18 | 2019-04-05 | 西安交通大学 | A kind of 10kV transformer Portable PD On-Line detection system based on oscillation wave |
| CN112034316A (en) * | 2020-08-31 | 2020-12-04 | 国网山东省电力公司电力科学研究院 | Optical isolator for detecting partial discharge of oscillation wave and partial discharge detection device |
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