CN106872862A - A kind of apparatus and method of the alternating current-direct current composite voltage flashover test for optical fiber - Google Patents
A kind of apparatus and method of the alternating current-direct current composite voltage flashover test for optical fiber Download PDFInfo
- Publication number
- CN106872862A CN106872862A CN201710007380.5A CN201710007380A CN106872862A CN 106872862 A CN106872862 A CN 106872862A CN 201710007380 A CN201710007380 A CN 201710007380A CN 106872862 A CN106872862 A CN 106872862A
- Authority
- CN
- China
- Prior art keywords
- voltage
- optical fiber
- flashover
- test
- test optical
- 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
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to a kind of apparatus and method of the alternating current-direct current composite voltage flashover test for optical fiber, described device includes：Ac high-voltage module, it is used to measure the alternating voltage for putting on test optical fiber, and the ac high-voltage module includes AC power, harmonics resistance, capacitive divider and ac voltage measurement unit；High direct voltage module, it is used to measure the DC voltage for putting on test optical fiber, and the high direct voltage module includes dc source, direct current protecting resistance, resitstance voltage divider and DC voltage measurement unit.
Description
Technical field
The present invention relates to high-tension transmission field, and more particularly, to a kind of alternating current-direct current compound electric for optical fiber
The apparatus and method for pressing flashover test.
Background technology
In high-voltage direct-current transmission of electricity (High Voltage Direct Current, HVDC) system, optical fiber is usually used in passing
Defeated control and measurement signal.Optical fiber is typically subjected to as electrical equipment of connection and the passage of double measurement control device
High-voltage value.With the continuous improvement of transmission system voltage class, the flashover of optical fiber is pressure-resistant increasingly to attract attention.In straightening high
In stream transmission system, optical fiber subjects high direct voltage and the superimposed effect of ac high-voltage simultaneously, it is therefore desirable to which clear and definite optical fiber exists
There is the DC voltage and alternating voltage during flashover, to ensure optical fiber normal work in HVDC transmission system.
The content of the invention
In order to solve the above mentioned problem of background technology presence, the present invention provides a kind of alternating current-direct current composite voltage for optical fiber
The device of flashover test, described device includes：
Ac high-voltage module, it is used to measure the alternating voltage for putting on test optical fiber, and the ac high-voltage module includes
AC power, harmonics resistance, capacitive divider and ac voltage measurement unit.The AC power is connected through protective resistance
To test optical fiber one end, alternating voltage is put between optical fiber exchange receiving end and ground.Between the receiving end and ground of test optical fiber
Capacitive divider is connected with, alternating voltage, wherein electric capacity point are measured by the AC measurment unit being connected on capacitive divider
Depressor includes high-voltage arm and low-voltage arm.
High direct voltage module, it is used to measure the DC voltage for putting on test optical fiber, and the high direct voltage module includes
Dc source, direct current protecting resistance, resitstance voltage divider.The dc source is connected to test optical fiber one end through protective resistance, will
DC voltage is put between test optical fiber DC receiving end and ground.Electric resistance partial pressure is connected between the receiving end and ground of test optical fiber
Device, DC voltage is measured by the DC measurement being connected on resitstance voltage divider, and wherein resitstance voltage divider includes high-voltage arm
And low-voltage arm.
Wherein, ac voltage measurement unit and DC voltage measurement unit can directly read voltage number using universal meter
Word, it is also possible to connect high-voltage probe measurement alternating voltage and DC voltage respectively on capacitive divider and resitstance voltage divider, and
By oscilloscope display flashover voltage waveform.
Further, described device also includes Rogowski coil, its flashover current for being used for measurement stream optical fiber after tested.Roche
Coil can realize high-low pressure signal isolation, while removing low frequency and flip-flop in electric current, transient state more clearly visible be presented
Electric current.
Further, using mode altogether, test optical fiber is using outstanding ground mode for the AC power and dc source.
Further, it is by testing optical fiber one with composite voltage is exchanged that described device applies direct current at test optical fiber two ends
End connection high direct voltage module, one end connection ac high-voltage module is realized.
Further, the AC power use high pressure Harmonic Current, its superposition that can simultaneously export various harmonic waves, and
Each harmonic voltage magnitude can be respectively controlled, actual condition that can be preferably in analog DC power transmission engineering.
According to another aspect of the present invention, the present invention provides a kind of alternating current-direct current composite voltage flashover test for optical fiber
Method, it is characterised in that methods described includes：
Step 1, the DC voltage for applying not make test optical fiber that flashover occurs on test optical fiber by high direct voltage module；
Or the alternating voltage for applying not making test optical fiber that flashover occurs by ac high-voltage module；
Step 2, when step 1 apply voltage be DC voltage when, by ac high-voltage module test optical fiber on apply
Alternating voltage, wherein alternating voltage are started from scratch increase, and flashover occurs to test optical fiber terminates, or the electricity applied when step 1
Press during for alternating voltage, DC voltage is applied on test optical fiber by high direct voltage module, wherein DC voltage is started from scratch
Increase, terminate when there is flashover to test optical fiber；And
Step 3, test optical fiber flashover voltage waveform is recorded by ac high-voltage module and high direct voltage module, it is determined that test
There is the alternating voltage and DC voltage that are born during flashover in optical fiber.
Further, the direct current that the test optical fiber two ends in methods described apply is by test with composite voltage is exchanged
Optical fiber one end connects high direct voltage module, and one end connection ac high-voltage module is realized.
Further, it is characterised in that the alternating voltage module uses high-voltage harmonic source.
Provided by the present invention for the apparatus and method of the alternating current-direct current composite voltage flashover test of optical fiber, preferably realize
Optical fiber tolerates the situation of ac high-voltage and DC voltage simultaneously, and determine optical fiber occur the DC voltage tolerated during flashover and
Alternating voltage, so as to optical fiber normal work in HVDC transmission system has been effectively ensured.
Brief description of the drawings
By reference to the following drawings, illustrative embodiments of the invention can be more fully understood by：
Fig. 1 is the structure of the device of the alternating current-direct current composite voltage flashover test for optical fiber of the specific embodiment of the invention
Figure；
Fig. 2 is the flow of the method for the alternating current-direct current composite voltage flashover test for optical fiber of the specific embodiment of the invention
Figure；And
Fig. 3 is the test optical fiber of the alternating current-direct current composite voltage flashover test for optical fiber of the specific embodiment of the invention
Flashover voltage waveform.
Specific embodiment
With reference now to accompanying drawing, illustrative embodiments of the invention are introduced, however, the present invention can use many different shapes
Formula is implemented, and is not limited to embodiment described herein, there is provided these embodiments are to disclose at large and fully
The present invention, and fully pass on the scope of the present invention to person of ordinary skill in the field.For showing for being illustrated in the accompanying drawings
Term in example property implementation method is not limitation of the invention.In the accompanying drawings, identical cells/elements are attached using identical
Icon is remembered.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, is appreciated that and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or excessively formal meaning.
Fig. 1 is the structure of the device of the alternating current-direct current composite voltage flashover test for optical fiber of the specific embodiment of the invention
Figure.As shown in figure 1, the device 100 of the alternating current-direct current composite voltage flashover test for optical fiber in present embodiment includes exchange
High-pressure modular 101, high direct voltage module 102, test optical fiber 103 and Rogowski coil 104.
Ac high-voltage module 101, it is used to measure the alternating voltage for putting on test optical fiber 103, the ac high-voltage mould
Block 101 includes AC power 111, harmonics resistance 112, capacitive divider 113 and ac voltage measurement unit 114.It is described
AC power 111 is connected to test optical fiber 103 one end through protective resistance 112, by alternating voltage put on optical fiber exchange receiving end with
Between ground.Capacitive divider 113 is connected between the receiving end and ground of test optical fiber, is surveyed by ac voltage measurement unit 114
Amount alternating voltage, wherein capacitive divider include high-voltage arm 131 and low-voltage arm 132, and ac voltage measurement unit 114 includes high pressure
Probe 141 and oscillograph 142.
High direct voltage module 102, it is used to measure the DC voltage for putting on test optical fiber 103, the high direct voltage mould
Block 102 includes dc source 121, direct current protecting resistance 122, resitstance voltage divider 123 and DC voltage measurement unit 124.It is described
Dc source 121 is connected to test optical fiber 103 one end through protective resistance 122, and DC voltage is put on into the straight of test optical fiber 103
Between stream receiving end and ground.Resitstance voltage divider 123 is connected between the receiving end and ground of test optical fiber, by DC voltage measurement list
Unit 124 measures DC voltage, and wherein resitstance voltage divider includes high-voltage arm 231 and low-voltage arm 232, DC voltage measurement unit 124
Including high-voltage probe 241 and oscillograph 242.
Preferably, described device also includes Rogowski coil 104, its flashover current for being used for measurement stream optical fiber 103 after tested.
Rogowski coil 104 can realize high-low pressure signal isolation, while removing low frequency and flip-flop in electric current, be in more clearly visible
Existing transient current.
Preferably, using mode altogether, test optical fiber 103 is using outstanding place for the AC power 111 and dc source 121
Formula.
Preferably, it is by testing optical fiber with composite voltage is exchanged that described device applies direct current at test optical fiber 103 two ends
One end connects high direct voltage module, and one end connection ac high-voltage module is realized.
Preferably, the use of the AC power 111 high pressure Harmonic Current, its superposition that can simultaneously export various harmonic waves,
And can respectively control each harmonic voltage magnitude, actual condition that can be preferably in analog DC power transmission engineering.
Fig. 2 is the flow of the method for the alternating current-direct current composite voltage flashover test for optical fiber of the specific embodiment of the invention
Figure.As shown in Fig. 2 in the present embodiment, for the flow chart of the method 200 of the alternating current-direct current composite voltage flashover test of optical fiber
Since step S201.
In step S201, the direct current for applying not make test optical fiber that flashover occurs on test optical fiber by high direct voltage module
Voltage.In the present embodiment, the DC voltage of applying is -7.5kV.
In step S202, alternating voltage is applied on test optical fiber by ac high-voltage module, wherein alternating voltage is from zero
Start to increase, flashover occurs to test optical fiber terminates.In the present embodiment, the frequency of alternating voltage is 600Hz.
In step S203, test optical fiber flashover voltage waveform is recorded by ac high-voltage module and high direct voltage module, really
There is the alternating voltage and DC voltage that are born during flashover in location survey examination optical fiber.
Fig. 3 is the test optical fiber of the alternating current-direct current composite voltage flashover test for optical fiber of the specific embodiment of the invention
Flashover voltage waveform.As shown in figure 3, during -7.5kV DC voltages superposition 600Hz alternating voltages, flashover moment alternating voltage peak
About 9.4kV, flashover occurs at alternating voltage negative peak, and voltage is gradually vibrated to 0 current potential after flashover.
Preferably, the direct current that the test optical fiber two ends in methods described apply is by test light with composite voltage is exchanged
Fine one end connects high direct voltage module, and one end connection ac high-voltage module is realized.
Preferably, it is characterised in that the alternating voltage module uses high-voltage harmonic source.
By above embodiments describing the present invention.However, it is known in those skilled in the art, as subsidiary
Patent right requirement limited, except the present invention other embodiments disclosed above equally fall in the scope of the present invention
It is interior.
Normally, all terms for using in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly defined in addition wherein.All of reference " one/described/be somebody's turn to do【Device, component etc.】" all it is opened ground
At least one of described device, component etc. example is construed to, unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate order, unless explicitly stated otherwise.
Claims (8)
1. the device of a kind of alternating current-direct current composite voltage flashover test for optical fiber, it is characterised in that described device includes：
Ac high-voltage module, it is used to measure the alternating voltage for putting on test optical fiber, and the ac high-voltage module includes exchange
Power supply, harmonics resistance, capacitive divider and ac voltage measurement unit；
High direct voltage module, it is used to measure the DC voltage for putting on test optical fiber, and the high direct voltage module includes direct current
Power supply, direct current protecting resistance, resitstance voltage divider and DC voltage measurement unit.
2. device according to claim 1, it is characterised in that described device also includes Rogowski coil, and it is used for measurement stream
The flashover current of optical fiber after tested.
3. device according to claim 1, it is characterised in that the AC power and dc source using mode altogether,
Test optical fiber is using outstanding ground mode.
4. device according to claim 1, it is characterised in that described device applies direct current and exchanges at test optical fiber two ends
Composite voltage is to connect high direct voltage module by testing optical fiber one end, and one end connection ac high-voltage module is realized.
5. device according to claim 1, it is characterised in that the AC power uses high pressure Harmonic Current.
6. a kind of method of alternating current-direct current composite voltage flashover test for optical fiber, it is characterised in that methods described includes：
Step 1, the DC voltage for applying not make test optical fiber that flashover occurs on test optical fiber by high direct voltage module, or
The alternating voltage for applying not making test optical fiber that flashover occurs by ac high-voltage module；
Step 2, when step 1 apply voltage be DC voltage when, by ac high-voltage module test optical fiber on apply exchange
Voltage, wherein alternating voltage are started from scratch increase, and flashover occurs to optical fiber terminates, or when the voltage that step 1 applies is exchange
During voltage, DC voltage is applied on test optical fiber by high direct voltage module, wherein DC voltage is started from scratch increases, to survey
Examination optical fiber occurs to terminate during flashover；And
Step 3, test optical fiber flashover voltage waveform is recorded by ac high-voltage module and high direct voltage module, it is determined that test optical fiber
There is the alternating voltage and DC voltage that are born during flashover.
7. method according to claim 6, it is characterised in that the direct current that the test optical fiber two ends in methods described apply with
Exchange composite voltage is to connect high direct voltage module by test optical fiber one end, and one end connection ac high-voltage module is realized.
8. method according to claim 6, it is characterised in that the alternating voltage module uses high-voltage harmonic source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007380.5A CN106872862A (en) | 2017-01-05 | 2017-01-05 | A kind of apparatus and method of the alternating current-direct current composite voltage flashover test for optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007380.5A CN106872862A (en) | 2017-01-05 | 2017-01-05 | A kind of apparatus and method of the alternating current-direct current composite voltage flashover test for optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106872862A true CN106872862A (en) | 2017-06-20 |
Family
ID=59165570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710007380.5A Pending CN106872862A (en) | 2017-01-05 | 2017-01-05 | A kind of apparatus and method of the alternating current-direct current composite voltage flashover test for optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106872862A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169640A (en) * | 2017-12-29 | 2018-06-15 | 中国电力科学研究院有限公司 | One kind is based on gas isolated combined high-voltage generating means and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62126361A (en) * | 1985-11-27 | 1987-06-08 | Sumitomo Electric Ind Ltd | Method and apparatus for detecting trouble of transmission/distribution line |
| JPH04121035A (en) * | 1990-09-12 | 1992-04-22 | Ngk Insulators Ltd | Accident point spotting device |
| CN102253317A (en) * | 2011-04-28 | 2011-11-23 | 南方电网科学研究院有限责任公司 | High-altitude power transmission grade alternating current, direct current and impact combined superimposed voltage test method |
| CN202770953U (en) * | 2012-07-24 | 2013-03-06 | 江苏省电力公司电力科学研究院 | Partial discharge detector for oscillating wave of crosslinked cable |
-
2017
- 2017-01-05 CN CN201710007380.5A patent/CN106872862A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62126361A (en) * | 1985-11-27 | 1987-06-08 | Sumitomo Electric Ind Ltd | Method and apparatus for detecting trouble of transmission/distribution line |
| JPH04121035A (en) * | 1990-09-12 | 1992-04-22 | Ngk Insulators Ltd | Accident point spotting device |
| CN102253317A (en) * | 2011-04-28 | 2011-11-23 | 南方电网科学研究院有限责任公司 | High-altitude power transmission grade alternating current, direct current and impact combined superimposed voltage test method |
| CN202770953U (en) * | 2012-07-24 | 2013-03-06 | 江苏省电力公司电力科学研究院 | Partial discharge detector for oscillating wave of crosslinked cable |
Non-Patent Citations (3)
| Title |
|---|
| 余涛等: "基于光纤传输的覆冰绝缘子泄漏电流测量系统", 《高压电器》 * |
| 金福宝等: "交直流复合电场下油纸绝缘沿面放电过程特性", 《高电压技术》 * |
| 齐波等: "不同比例交直流复合电场作用下油纸绝缘内部气隙放电的特征", 《中国电机工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169640A (en) * | 2017-12-29 | 2018-06-15 | 中国电力科学研究院有限公司 | One kind is based on gas isolated combined high-voltage generating means and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103091609A (en) | Performance detecting system and method thereof of gas insulated substation (GIS) partial discharge on-line monitoring device | |
| CN103336186A (en) | Method for testing transformer equipment without disassembling lead | |
| WO2021008336A1 (en) | Method and system for measuring power frequency and superimposed impulse voltage waveforms | |
| CN104297532B (en) | Voltage transformer calibrating termination | |
| CN104330662A (en) | Testing device and testing method for direct-current magnetic bias of converter transformer | |
| CN107807282A (en) | The method of tested media loss factor and capacitance under transformer non-dismantle high voltages fuse | |
| CN108037430A (en) | A kind of 10kV distribution transformers three-phase partial discharge test system | |
| EP3798650A1 (en) | Insulation diagnosis and positioning method for insulated tube-type bus bar | |
| CN103592518A (en) | Method for measuring capacitor dielectric loss and capacitance of capacitor voltage transformer | |
| Suwanasi et al. | Investigation on partial discharge of power cable termination defects using high frequency current transformer | |
| CN202948129U (en) | Tester for voltage withstanding test apparatus of electric energy meter | |
| CN106872862A (en) | A kind of apparatus and method of the alternating current-direct current composite voltage flashover test for optical fiber | |
| CN206002564U (en) | A kind of dielectric loss and insulation resistance test conversion equipment and pilot system | |
| CN107643502A (en) | A kind of high-voltage electrical apparatus detecting instrument check device | |
| CN218546873U (en) | Insulation resistance tester based on capacitance partial pressure restraines induced voltage | |
| CN102096033A (en) | Test device for sudden short circuit of voltage transformer | |
| CN107449987B (en) | Based on the test method of transferring the files for not tearing 750 kv transformer high pressure lead technologies open | |
| CN107024613A (en) | High-voltage feedback power cable square wave on-line overvoltage monitor | |
| JP3869283B2 (en) | Method for removing inductive noise in power cable deterioration diagnosis and power cable test apparatus | |
| CN107271775B (en) | electric power overhead line phase detection method | |
| CN109541517A (en) | A kind of high-tension current inductor leakage current and error measurement method and system | |
| CN107091960B (en) | A kind of extra-high voltage π type DC filter is taken out stitches and preventive trial method | |
| Zou et al. | Reconstructing Primary Voltage Across Inductive VTs—Part II: Validation, Application, and Analysis | |
| CN106771514A (en) | A kind of device and method of quick lookup voltage transformer failure | |
| CN102539960A (en) | Method for measuring variable ratio nonlinear primary current threshold value of current transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
|
| RJ01 | Rejection of invention patent application after publication |