CN106885936B - Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation - Google Patents
Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation Download PDFInfo
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- CN106885936B CN106885936B CN201710048784.9A CN201710048784A CN106885936B CN 106885936 B CN106885936 B CN 106885936B CN 201710048784 A CN201710048784 A CN 201710048784A CN 106885936 B CN106885936 B CN 106885936B
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- current
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- discharge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a kind of hardened structure discharge current measuring devices of stick-based on insulation point domain combined method for belonging to corona discharge field of measuring technique.Multiple concentric circular regions are divided on anode plate, each region is separated with insulating materials；It is grounded below each insulation domain by noninductive resistance, ohmically voltage passes through the coaxial cable matched and connect with oscillograph.The present invention can analyze space corona current distribution character, and can explain the situation that emulation and experimental waveform cannot coincide well.
Description
Technical field
The invention belongs to corona discharge field of measuring technique, in particular to a kind of stick-plate for dividing domain combined method based on insulation
Structure discharge current measuring device.
Background technique
The form of gas discharge be it is diversified, when wherein corona discharge is that extra electric field reaches certain intensity, gas
Medium specific local self-maintained discharge phenomenon in the field, also referred to as Townsend discharge.In this region, the gas that is ionized
Body molecule can be considered as free-moving charged particle, then the aggregate of charged particle just can be described as plasma.It is just flat
For equal effect, it is macroscopically being in electroneutral, but has complicated physical-chemical reaction process inside it, wherein most important
It is the collision between charged particle and neutral gas molecule.Due to stick-plate electric field inhomogeneities, ionization process is limited in
For small curvature electrode nearby in the region of very little, which can be referred to as " bloom region ".And other lower regions of electric field strength
It is main happens is that absorption, compound phenomenon based on electron transfer, which is then referred to as peripheral region.Negative corona is put
Electricity, when application voltage gradually rises, first it can be observed that a series of current impulse of continuous regulars, also referred to as trie
Qie Er pulse；Continue to increase with voltage, pulse fades away, and electric discharge is transferred to the no pulse corona stage at this time；If voltage is held
Height of continuing rising generates spark discharge then entire discharging gap will be breakdown.It therefore can be by analysis corona discharge waveform (i.e.
Trichel pulse) the parameters such as amplitude, frequency analyze the PARTICLE TRANSPORT FROM process inside plasma.
Current many scholars determine Trichel pulse using the plate current in measuring stick-Slab, this kind of method
The discharge current in overall region can be relatively accurately measured, and the electronic current in different electric discharge domains cannot be obtained.
Summary of the invention
It is special the purpose of the present invention is to propose to a kind of stick-plate discharge current measuring device for dividing domain combined method based on insulation
Sign is that the stick-plate discharge current measuring device is that multiple concentric circular regions are divided on anode plate 2, and each region is with absolutely
Edge material 1 separates, and high pressure bar 4 is placed in center circle region, in each concentric circular regions internal fixation plate electrode 3；It is gone here and there on each plate electrode 3
A noninductive resistance is connect, and is grounded.
Specific step is as follows for the measurement of plate discharge current for the stick-:
1) multiple concentric circular regions are divided on anode plate, each region is separated with insulating materials；Below each insulation domain
It being grounded by noninductive resistance, ohmically voltage passes through the coaxial cable matched and connect with oscillograph,
2) apply high voltage on high pressure bar 4, until it reaches discharge inception voltage, corona discharge takes place at this time；
To measure the corona current of each position.
3) step 2) obtains the ionic current and displacement current on each insulation domain, while the sum of these electric currents are total electricity
Corona current value.Then the discharge current in different zones is measured, wherein total current divides electric current to be added to obtain by these.
4) in order to simplify measurement, a conducting wire is connected at the center in each region of anode plate, and connect by current-limiting resistance
Ground then each divides the voltage that current-limiting resistance is connected on domain, then find out the voltage and the ratio of resistance to obtain by measurement
Pass through the discharge current in the region.
The beneficial effects of the invention are as follows application this method can analyze space corona current distribution character, and can be well
Explain the situation that emulation and experimental waveform cannot coincide.
Detailed description of the invention
Fig. 1 is to divide multiple concentric circular regions schematic diagrames on anode plate.
Fig. 2 is discharge current measuring device schematic diagram.
Fig. 3 is discharge current graph of measured results.
Specific embodiment
The present invention proposes a kind of stick-plate discharge current measuring device based on insulation point domain combined method, with reference to the accompanying drawing
It is explained.
Fig. 1, which is shown on anode plate, divides multiple concentric circular regions schematic diagrames.Fig. 2 show discharge current measuring device and shows
It is intended to.
Fig. 1, stick shown in Fig. 2-plate discharge current measuring device are that multiple concentric circular regions are divided on anode plate 2, respectively
A region insulating materials 1 separates, and high pressure bar 4 is placed in center circle region, in each concentric circular regions internal fixation plate electrode 3；Respectively
A noninductive resistance is concatenated on plate electrode 3, and is grounded；Voltage on noninductive resistance passes through the coaxial cable and oscillograph matched
Connection.
Specific step is as follows for the measurement of plate discharge current for the stick-:
1) multiple concentric circular regions are divided on anode plate, each region is separated with insulating materials；Below each insulation domain
It being grounded by noninductive resistance, ohmically voltage passes through the coaxial cable matched and connect with oscillograph,
2) apply high voltage on high pressure bar 4, until it reaches discharge inception voltage, corona discharge takes place at this time；
To measure the corona current of each position.
3) step 2) obtains the ionic current and displacement current on each insulation domain, while the sum of these electric currents are total electricity
Corona current value.Then the discharge current (as shown in Figure 3) in different zones is measured, wherein total current divides electric current to be added by these
It arrives.
4) in order to simplify measurement, a conducting wire is connected at the center in each region of anode plate, and connect by current-limiting resistance
Ground then each divides the voltage that current-limiting resistance is connected on domain, then find out the voltage and the ratio of resistance to obtain by measurement
Pass through the discharge current in the region.
Claims (1)
1. a kind of stick-plate discharge current measuring device measurement method for dividing domain combined method based on insulation, the stick-plate electric discharge electricity
Flow measuring apparatus is that multiple concentric circular regions are divided on anode plate (2), and each region is separated with insulating materials (1), at center
High pressure bar (4) is placed in circle region, in each concentric circular regions internal fixation plate electrode (3)；One is concatenated on each plate electrode (3) without electrification
It hinders (5), and is grounded；It is characterized in that, specific step is as follows for the measurement of plate discharge current for the stick-:
1) multiple concentric circular regions are divided on anode plate, each region is separated with insulating materials；Pass through below each insulation domain
Noninductive resistance ground connection, ohmically voltage pass through the coaxial cable matched and connect with oscillograph,
2) apply high voltage on high pressure bar (4), until it reaches discharge inception voltage, corona discharge takes place at this time；From
And measure the corona current of each position；
3) step 2) obtains the ionic current and displacement current on each insulation domain, while the sum of these electric currents are total corona electricity
Flow valuve；Then the discharge current in different zones is measured, wherein total current divides electric current to be added to obtain by these；It is surveyed to simplify
Amount connects a conducting wire at the center in each region of anode plate, and is grounded by current-limiting resistance, then each divides domain by measurement
The voltage of upper connection current-limiting resistance, then find out the ratio of the voltage and current-limiting resistance and can obtain electric discharge electricity by the region
Stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048784.9A CN106885936B (en) | 2017-01-22 | 2017-01-22 | Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048784.9A CN106885936B (en) | 2017-01-22 | 2017-01-22 | Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106885936A CN106885936A (en) | 2017-06-23 |
| CN106885936B true CN106885936B (en) | 2019-10-01 |
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ID=59176691
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710048784.9A Expired - Fee Related CN106885936B (en) | 2017-01-22 | 2017-01-22 | Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2749986A1 (en) * | 1996-06-14 | 1997-12-19 | Electricite De France | APPARATUS FOR DETECTING INSULATION FAILURE OF A CONNECTED DEVICE IN AN ELECTRICAL POWER DISTRIBUTION OR TRANSPORT NETWORK AND CORRESPONDING DETECTION METHOD |
| CN201096875Y (en) * | 2007-09-18 | 2008-08-06 | 比亚迪股份有限公司 | Fuel cell current measuring circuit |
| CN202840243U (en) * | 2012-09-18 | 2013-03-27 | 杭州天明环保工程有限公司 | Ionic wind air flow accelerating device and electric current density testing device thereof |
| CN103823098A (en) * | 2014-03-19 | 2014-05-28 | 上海电力学院 | Pre-discharge current detection device |
| CN104166043A (en) * | 2014-08-12 | 2014-11-26 | 国网上海市电力公司 | Non-inductive pulse current detection device |
| CN106093537A (en) * | 2016-07-26 | 2016-11-09 | 河北大学 | High pressure electrostatic separator roll surface real-time current density measuring equipment and measuring method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839938A (en) * | 2010-04-15 | 2010-09-22 | 西安爱邦电磁技术有限责任公司 | Method for testing airplane model lightning current distribution by utilizing thermal infrared imager |
| US20150098161A1 (en) * | 2013-10-09 | 2015-04-09 | Hamilton Sundstrand Corporation | Integrated corona fault detection |
-
2017
- 2017-01-22 CN CN201710048784.9A patent/CN106885936B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2749986A1 (en) * | 1996-06-14 | 1997-12-19 | Electricite De France | APPARATUS FOR DETECTING INSULATION FAILURE OF A CONNECTED DEVICE IN AN ELECTRICAL POWER DISTRIBUTION OR TRANSPORT NETWORK AND CORRESPONDING DETECTION METHOD |
| CN201096875Y (en) * | 2007-09-18 | 2008-08-06 | 比亚迪股份有限公司 | Fuel cell current measuring circuit |
| CN202840243U (en) * | 2012-09-18 | 2013-03-27 | 杭州天明环保工程有限公司 | Ionic wind air flow accelerating device and electric current density testing device thereof |
| CN103823098A (en) * | 2014-03-19 | 2014-05-28 | 上海电力学院 | Pre-discharge current detection device |
| CN104166043A (en) * | 2014-08-12 | 2014-11-26 | 国网上海市电力公司 | Non-inductive pulse current detection device |
| CN106093537A (en) * | 2016-07-26 | 2016-11-09 | 河北大学 | High pressure electrostatic separator roll surface real-time current density measuring equipment and measuring method |
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| Publication number | Publication date |
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| CN106885936A (en) | 2017-06-23 |
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Granted publication date: 20191001 Termination date: 20210122 |