CN104714157B - A kind of capacitive coupled sensors and installation method of high sensitivity helical form arrangement - Google Patents
A kind of capacitive coupled sensors and installation method of high sensitivity helical form arrangement Download PDFInfo
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- CN104714157B CN104714157B CN201510056245.0A CN201510056245A CN104714157B CN 104714157 B CN104714157 B CN 104714157B CN 201510056245 A CN201510056245 A CN 201510056245A CN 104714157 B CN104714157 B CN 104714157B
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- coupled sensors
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- 238000009434 installation Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000035945 sensitivity Effects 0.000 title claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052802 copper Inorganic materials 0.000 claims abstract description 28
- 239000010949 copper Substances 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 238000009413 insulation Methods 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims abstract description 18
- 230000004044 response Effects 0.000 claims abstract description 16
- 238000001228 spectrum Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 10
- 230000003595 spectral effect Effects 0.000 abstract description 8
- 238000004804 winding Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses a kind of capacitive coupled sensors and installation method of highly sensitive helical form arrangement, the capacitive coupled sensors of high sensitivity helical form arrangement include：Metal copper plate electrode, insulation spacer, ground electrode, sensor；Installation method includes the following steps：Metal copper plate electrode is pasted onto on insulation spacer, capacitive coupled sensors are constituted；Capacitive coupled sensors are made according to clockwise direction winding on cable external shielding layer, it is ensured that insulation spacer and external shielding layer excellent bonds；The wide selection 44mm of metal copper plate electrode, spacing P choose 45mm, and spiral wound 3 is drawn after enclosing by sensor lead-out wire.Spectral response peak value of the present invention reaches 1400mV, centre frequency 17MHz, bandwidth 10MHz；It can effectively improve the amplitude and bandwidth of frequency response, improve the sensitivity of capacitive coupled sensors Partial Discharge Detection, overcome existing capacitive coupled sensors and there are problems that frequency response amplitude is small, narrow bandwidth.
Description
Technical field
The invention belongs to Voltage Cable Lines Construction Partial Discharge Detecting Technology field more particularly to a kind of highly sensitive helical forms
The capacitive coupled sensors and installation method of arrangement.
Background technology
Voltage Cable Lines Construction is different from other primary equipments (transformer, switch), and cable body makes in factory, and cable
Attachment will be installed at the scene, and site operation quality is influenced by artificial technique, installation environment, and the quality in factory may be not achieved
Control requires, so cable accessory often becomes the weak spot of cable run.According to statistics, 95% or more of cable line fault is
Caused by cable accessory.For the Voltage Cable Lines Construction of operation.Voltage Cable Lines Construction Partial Discharge Detection is to find cable
The effective means of attachment insulation hidden danger, existing technology include High Frequency Current Sensor Partial Discharge Detection, capacitive coupling sensing
Device Partial Discharge Detection, ultrasonic wave Partial Discharge Detection and ultra high frequency PD detection.Relative to other several shelf depreciations
Detection method, capacitive coupled sensors Partial Discharge Detection can be shielded effectively outer since sensor is mounted on inside cable accessory
The interference of portion's electromagnetic signal, therefore can effectively detect the insulation hidden danger inside cable accessory.
But existing capacitive coupled sensors the shortcomings that there are frequency response amplitudes is small, narrow bandwidth.
Invention content
The embodiment of the present invention is designed to provide a kind of capacitive coupled sensors and peace of highly sensitive helical form arrangement
Dress method, it is intended to solve the problems, such as existing capacitive coupled sensors there are frequency response amplitudes small, narrow bandwidth.
The embodiment of the present invention is achieved in that a kind of capacitive coupled sensors of highly sensitive helical form arrangement, the height
Sensitivity helical form arrangement capacitive coupled sensors include：Metal copper plate electrode, insulation spacer, ground electrode, sensor；
Metal copper plate electrode is arranged on insulation spacer, and insulation spacer is arranged on ground electrode, and sensor connects metallic copper
Plate electrode, the wide 44mm of metal copper plate electrode, metal copper sheet spacing are equal to 45mm.
Further, by capacitive coupled sensors according to being spirally arranged in cable external shield clockwise, helical form
It is drawn by the lead-out wire of sensor after winding circle.
Further, when metal copper sheet spacing is equal to 45mm, capacitive coupled sensors spectral response peak value reaches 1400mV,
Centre frequency is 17MHz, bandwidth 10MHz.
The another object of the embodiment of the present invention is to provide a kind of capacitive coupled sensors of highly sensitive helical form arrangement
Installation method, the installation method of capacitive coupled sensors of high sensitivity helical form arrangement includes the following steps：
Metal copper plate electrode is pasted onto on insulation spacer by step 1, constitutes capacitive coupled sensors；
Step 2 is made capacitive coupled sensors on cable external shielding layer according to clockwise direction winding, it is ensured that felt pad
Piece and external shielding layer excellent bonds；
Step 3, the wide selection 44mm of metal copper plate electrode, spacing P choose 45mm, and spiral wound 3 passes through sensor after enclosing
Lead-out wire is drawn.
The capacitive coupled sensors and installation method of high sensitivity helical form arrangement provided by the invention, capacitive coupling sensing
Device according to being spirally arranged in cable external shield clockwise, metal copper plate electrode wide 44mm, spacing P=45mm, spiral
The capacitive coupled sensors of shape arrangement, spectral response peak value reach 1400mV, centre frequency 17MHz, bandwidth 10MHz；Energy
The amplitude and bandwidth of frequency response are effectively improved, the sensitivity of capacitive coupled sensors Partial Discharge Detection is improved, is overcome existing
With the presence of the problem of capacitive coupled sensors frequency response amplitude is small, narrow bandwidth.
Description of the drawings
Fig. 1 is the capacitive coupled sensors structural schematic diagram of highly sensitive helical form arrangement provided in an embodiment of the present invention；
Fig. 2 is the installation method stream of the capacitive coupled sensors of highly sensitive helical form arrangement provided in an embodiment of the present invention
Cheng Tu；
Fig. 3 is that the installation condition of the capacitive coupled sensors of highly sensitive helical form arrangement provided in an embodiment of the present invention is shown
It is intended to；
In figure：1, metal copper plate electrode；2, insulation spacer；3, ground electrode；4, sensor.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Below in conjunction with the accompanying drawings and specific embodiment is further described the application principle of the present invention.
As shown in Figure 1, the embodiment of the present invention highly sensitive helical form arrangement capacitive coupled sensors mainly by：Metal
Copper plate electrode 1, insulation spacer 2, ground electrode 3；
Metal copper plate electrode 1 is arranged on insulation spacer 2, and insulation spacer 2 is arranged on ground electrode 3；
As shown in Fig. 2, the invention also includes sensors 4；By capacitive coupled sensors shown in FIG. 1 according to clockwise
It is spirally arranged in cable external shield, 1 width 44mm of metal copper plate electrode is taken as respectively shown in spacing P Fig. 3 spectral response figures
23mm, 45mm and 68mm, spiral wound 3 are drawn after enclosing by the lead-out wire of sensor 4.
As shown in figure 3, the installation method of the capacitive coupled sensors of the highly sensitive helical form arrangement of the embodiment of the present invention
Include the following steps：
S101：Metal copper plate electrode is pasted onto on insulation spacer, capacitive coupled sensors are constituted；
S102：Capacitive coupled sensors are made according to clockwise direction winding on cable external shielding layer, it is ensured that insulation spacer
With external shielding layer excellent bonds；
S103：The wide selection 44mm of metal copper plate electrode, spacing P choose 45mm, and spiral wound 3 is drawn after enclosing by sensor
Outlet is drawn.
By capacitive coupled sensors spectral response, when spacing P is equal to 45mm, capacitive coupled sensors spectral response is special
Property is best, and spectral response peak value reaches 1400mV, centre frequency 17MHz, bandwidth 10MHz.Traditional capacitive coupling sensing
The spectral response peak value of device is usually less than 1000mV, and bandwidth also only has 5MHz or so；The capacitive coupled sensors can effectively improve
The amplitude and bandwidth of frequency response, improve the sensitivity of capacitive coupled sensors Partial Discharge Detection.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (1)
1. a kind of capacitive coupled sensors system of high sensitivity helical form arrangement, which is characterized in that the high sensitivity helical form
The capacitive coupled sensors system of arrangement includes：Metal copper plate electrode, insulation spacer, ground electrode, sensor lead-out wire；
Metal copper plate electrode is arranged on insulation spacer, and insulation spacer is arranged on ground electrode, and sensor lead-out wire connects metal
Copper plate electrode, the wide 44mm of metal copper plate electrode, metal copper sheet spacing are equal to 45mm；
By capacitive coupled sensors system according to being spirally arranged in cable external shield clockwise, spiral wound 3 encloses
It is drawn afterwards by sensor lead-out wire；
When metal copper sheet spacing is equal to 45mm, capacitive coupled sensors system spectrum peak value of response reaches 1400mV, center frequency
Rate is 17MHz, bandwidth 10MHz；
The installation method of the capacitive coupled sensors system of high sensitivity helical form arrangement includes the following steps：
Metal copper plate electrode is pasted onto on insulation spacer by step 1, and insulation spacer is arranged on ground electrode, sensor lead-out wire
Metal copper plate electrode is connected, capacitive coupled sensors system is constituted；
Step 2, by capacitive coupled sensors system according to being wrapped in clockwise on cable external shielding layer, it is ensured that felt pad
Piece and external shielding layer excellent bonds；
Step 3, the wide selection 44mm of metal copper plate electrode, metal copper sheet spacing choose 45mm, and spiral wound 3 passes through biography after enclosing
Sensor lead-out wire is drawn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510056245.0A CN104714157B (en) | 2015-02-04 | 2015-02-04 | A kind of capacitive coupled sensors and installation method of high sensitivity helical form arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510056245.0A CN104714157B (en) | 2015-02-04 | 2015-02-04 | A kind of capacitive coupled sensors and installation method of high sensitivity helical form arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN104714157A CN104714157A (en) | 2015-06-17 |
| CN104714157B true CN104714157B (en) | 2018-11-06 |
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| CN201510056245.0A Active CN104714157B (en) | 2015-02-04 | 2015-02-04 | A kind of capacitive coupled sensors and installation method of high sensitivity helical form arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112630696B (en) * | 2020-12-07 | 2022-09-09 | 广西电网有限责任公司电力科学研究院 | Capacitive screen coupling simulation testing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097399U (en) * | 1991-08-06 | 1992-02-26 | 密山市智能仪表厂 | Capacity sensor |
| CN101324186A (en) * | 2008-07-04 | 2008-12-17 | 西安交通大学 | Device for measuring oil, gas, water three phase flow containing rate |
| CN202649374U (en) * | 2012-07-10 | 2013-01-02 | 浙江图维电力科技有限公司 | Inputting or detecting device based on capacitive sensing non-contact signals |
| CN202947989U (en) * | 2012-11-21 | 2013-05-22 | 内蒙古科技大学 | Spiral electrode capacitive sensor |
| CN103197210A (en) * | 2013-03-28 | 2013-07-10 | 国家电网公司 | Integrated sensor used for partial discharge detection of switch cabinet |
| CN203054162U (en) * | 2012-12-10 | 2013-07-10 | 铜仁供电局 | Comprehensive tester for partial discharge of high-voltage cable |
| CN204028288U (en) * | 2014-08-08 | 2014-12-17 | 国家电网公司 | The checkout equipment of cable local discharge and capacitive coupled sensors |
-
2015
- 2015-02-04 CN CN201510056245.0A patent/CN104714157B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097399U (en) * | 1991-08-06 | 1992-02-26 | 密山市智能仪表厂 | Capacity sensor |
| CN101324186A (en) * | 2008-07-04 | 2008-12-17 | 西安交通大学 | Device for measuring oil, gas, water three phase flow containing rate |
| CN202649374U (en) * | 2012-07-10 | 2013-01-02 | 浙江图维电力科技有限公司 | Inputting or detecting device based on capacitive sensing non-contact signals |
| CN202947989U (en) * | 2012-11-21 | 2013-05-22 | 内蒙古科技大学 | Spiral electrode capacitive sensor |
| CN203054162U (en) * | 2012-12-10 | 2013-07-10 | 铜仁供电局 | Comprehensive tester for partial discharge of high-voltage cable |
| CN103197210A (en) * | 2013-03-28 | 2013-07-10 | 国家电网公司 | Integrated sensor used for partial discharge detection of switch cabinet |
| CN204028288U (en) * | 2014-08-08 | 2014-12-17 | 国家电网公司 | The checkout equipment of cable local discharge and capacitive coupled sensors |
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| CN104714157A (en) | 2015-06-17 |
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