CN107861057A - A kind of determination method of the key parameter of separator used for lightning protector - Google Patents
A kind of determination method of the key parameter of separator used for lightning protector Download PDFInfo
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- CN107861057A CN107861057A CN201710929957.8A CN201710929957A CN107861057A CN 107861057 A CN107861057 A CN 107861057A CN 201710929957 A CN201710929957 A CN 201710929957A CN 107861057 A CN107861057 A CN 107861057A
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- Prior art keywords
- arrester
- separator used
- electric current
- lightning
- current
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- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- 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
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
A kind of determination method of the key parameter of separator used for lightning protector, step are as follows：（1）Arrester outer surface leakage current under extreme case is obtained by artificial pollution test, to determine the longtime running electric current of separator used for lightning protector；（2）Internal leakage electric current after arrester aging is obtained by lightning impulse degradation；The minimum working current I of separator used for lightning protector is determined with reference to the External leakage electric current that artificial pollution test obtains；I=k（IOuter MAX+IIt is interior）Wherein, IOuter MAXFor the continuous service electric current of separator used for lightning protector；IIt is interiorFor the internal leakage electric current after arrester aging.The leakage current of arrester confirms the continuous service electric current of separator used for lightning protector when the present invention utilizes artificial pollution test, confirms the minimum working current of separator used for lightning protector with reference to the leakage current of arrester after lightning impulse degradation.It can effectively and exactly confirm the key parameter of separator used for lightning protector.
Description
Technical field
The present invention relates to a kind of determination method of the key parameter of separator used for lightning protector, belongs to arrester technical field.
Background technology
Distribution arrester generally selects composite insulating material overcoat, is not easy to find from the appearance after failure, and difficulty is searched in trouble point,
On-call maintenance is unable to, forms continuation earth fault, is unfavorable for the operation of power system economic and reliable.Disconnector is matched somebody with somebody for arrester
Complete equipment, it is used in series with arrester.When arrester is faulty, it will be spun off with arrester from system, make arrester
It is out of service, prevent power network continuation earth fault.And obvious disconnect should be left after disconnector action and is identified, it is easy to look into rapidly
Trouble point is looked for, alleviates the maintenance work of operations staff.But the special technology standard on disconnector is still far from perfect at present.
National standard GB11032-2010 and DL/T1294-2013 AC electric power systems metal oxide arrester uses directive/guide etc. with disconnector
Relevant criterion also simply incidentally proposes some technological requirements of some disconnectors.And to separator used for lightning protector it is mostly important two
Individual critical technical parameter（Longtime running electric current, minimum working current）A simplest definition has only been given, has not determined it
Value, illustrated even for how to determine that the two parameters all do not provide.
The content of the invention
The object of the present invention is in order to solve the problems of value of the key parameter of separator used for lightning protector, the present invention discloses one kind
The determination method of the key parameter of separator used for lightning protector.
Technical scheme is as follows, a kind of determination method of the key parameter of separator used for lightning protector, and step is as follows：
（1）The External leakage electric current of arrester under extreme case is obtained by artificial pollution test, to determine that arrester departs from
The longtime running electric current of device；
（2）Internal leakage electric current after arrester aging is obtained by lightning impulse degradation, and combines artificial pollution and tries
The External leakage electric current for testing acquisition determines the minimum working current I of separator used for lightning protector：
I=k（IOuter MAX+IIt is interior）
Wherein, IOuter MAXFor the continuous service electric current of separator used for lightning protector；IIt is interiorFor the internal leakage electric current after arrester aging；k
For the margin of safety of minimum working current electric current, the permissible value of as total leakage current uncertainty, mainly with the fortune of arrester
Row environment is relevant；K values are taken 1.5 during analysis of experiments.
The continuous service electric current of the separator used for lightning protector is the maximum of arrester outer surface leakage current.
The artificial pollution test comprises the following steps：
（1）Test product pre-processes：Test product is rinsed with deionized water, is placed in dust-proof container and dries；
（2）Test product is defiled：Using quantitative brushing method；
（3）The close close repetition measurement of ash of salt：Randomly select a test product test applies whether the close ash of salt is close meets the requirements；
（4）Applied voltage test：Test product is humidified using artificial fog chamber, pressurizeed using constant-voltage method；
（5）Leakage current measurement：Leakage Current is detected using universal meter and oscillograph.
Described lightning impulse degradation refers to GB11032-2010, often impacts 1 minor tick 1min, test and record oxygen
Change the residual voltage value of zinc arrester lightning current impact, and be spaced in the case that measurement Zinc-Oxide Arrester after certain number is in normal temperature
Leakage current of an arrester value.
The invention has the advantages that the leakage current of arrester confirms arrester when the present invention utilizes artificial pollution test
With the continuous service electric current of disconnector, confirm that arrester departs from reference to the leakage current of arrester after lightning impulse degradation
The minimum working current of device.It can effectively and exactly confirm the key parameter of separator used for lightning protector, be used for arrester de-
Specification production and use from device provide reference, the suitably promotion and application in power system.
Brief description of the drawings
Fig. 1 is the inventive method implementing procedure figure.
Embodiment
The embodiment of the present invention is as shown in Figure 1.
A kind of determination method of the key parameter of separator used for lightning protector of the present embodiment, utilizes artificial pollution test and thunder and lightning
Impact aging is tested, and according to the leakage current of arrester, determines continuous service electric current and the minimum movements of separator used for lightning protector
Electric current.
As shown in figure 1, artificial pollution test's concrete operation step is as follows：
（1）Test product pre-processes：Lightning arrester insulation surface is rinsed with deionization to remove the dunghill on arrester, is placed after cleaning
It is dry etc. to be used in dust-proof container.
（2）Test product is defiled：With reference to quantitative brushing method, according to arrester test product insulating surface surface area and ready-portioned filth
Grade, the dosage required for the NaCl and kaolin needed for every arrester test product is calculated, and NaCl is weighed up with electronic balance
With kaolinic amount, packaged respectively with the test paper of cleaning after weighing up.The NaCl wrapped with test paper is poured into kaolin and spent
In the glass that ionized water cleans up, add appropriate deionized water dissolving, and stirred and all brushed lightning-arrest with fine, soft fur brush
On device test product surface.Hang in arrester test product frame place 24 hours etc. it is to be dried, preparation be put into artificial fog chamber carry out it is filthy
Experiment.
（3）The repetition measurement that salt is close, ash is close：Randomly select whether completely after being defiled arrester test product measures its pollution degree
Estimated requirement enough.
（4）Pressurization：Pollution test room is humidified with steam generator, place humiture is recorded, when humidity reaches
After 100%, the treated arrester test product of filth is put into artificial fog chamber and applies constant voltage.
（5）The measurement of leakage current：While voltage is applied to arrester test product, kept away with oscillograph and universal meter record
The instantaneous value at thunder device leakage current each moment.
Lightning impulse degradation refers to GB11032-2010, can be selected any suitable in the range of 0.01 times ~ 2 times nominal currents
When lightning impulse current, its apparent wave head time should be between the μ s of 7 μ s ~ 9, and half time to peak（Without strict demand）Can have and appoint
Meaning deviation.During experiment, 1 minor tick 1min, test and the lightning current impact of record Zinc-Oxide Arrester residual voltage value are often impacted,
And it is spaced the leakage current of an arrester value in the case that measurement Zinc-Oxide Arrester is in normal temperature after certain number.
The flow chart implemented as shown in Figure 1 for the present embodiment method.Obtained by artificial pollution test under different pollution degrees
The Leakage Current I of arresterOutside, and with wherein maximum IOuter MAXContinuous service electric current as separator used for lightning protector；Pass through thunder
Surge degradation obtains the leakage current I of arrester after agingIt is interior, and be added with leakage current under filth, eligible result is just
For the minimum working current I of separator used for lightning protector.
Claims (4)
- A kind of 1. determination method of the key parameter of separator used for lightning protector, it is characterised in that be the step of methods described：（1）Arrester outer surface leakage current under extreme case is obtained by artificial pollution test, to determine that arrester departs from The longtime running electric current of device；（2）Internal leakage electric current after arrester aging is obtained by lightning impulse degradation；With reference to artificial pollution test The External leakage electric current of acquisition determines the minimum working current I of separator used for lightning protector；I=k（IOuter MAX+IIt is interior）Wherein, IOuter MAXFor the continuous service electric current of separator used for lightning protector；IIt is interiorFor the internal leakage electric current after arrester aging；k For the margin of safety of minimum working current electric current, the permissible value of as total leakage current uncertainty.
- A kind of 2. determination method of the key parameter of separator used for lightning protector according to claim 1, it is characterised in that institute State artificial pollution test include test product pretreatment, test product defile, the close ash of salt close repetition measurement, applied voltage test and leakage current measurement.
- A kind of 3. determination method of the key parameter of separator used for lightning protector according to claim 1, it is characterised in that institute Lightning impulse degradation is stated, often impacts 1 minor tick 1min, test and the lightning current impact of record Zinc-Oxide Arrester residual voltage Value；And it is spaced the leakage current of an arrester value in the case that measurement Zinc-Oxide Arrester is in normal temperature after certain number.
- A kind of 4. determination method of the key parameter of separator used for lightning protector according to claim 1, it is characterised in that institute The continuous service electric current for stating separator used for lightning protector is the maximum of arrester outer surface leakage current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710929957.8A CN107861057B (en) | 2017-10-09 | 2017-10-09 | Method for determining key parameters of disconnector for lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710929957.8A CN107861057B (en) | 2017-10-09 | 2017-10-09 | Method for determining key parameters of disconnector for lightning arrester |
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| Publication Number | Publication Date |
|---|---|
| CN107861057A true CN107861057A (en) | 2018-03-30 |
| CN107861057B CN107861057B (en) | 2020-08-11 |
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| CN201710929957.8A Active CN107861057B (en) | 2017-10-09 | 2017-10-09 | Method for determining key parameters of disconnector for lightning arrester |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0911937A2 (en) * | 1997-10-21 | 1999-04-28 | ABBPATENT GmbH | Test device for a fault current circuit breaker |
| CN2785118Y (en) * | 2005-04-12 | 2006-05-31 | 西安电瓷研究所 | Failure indicator for circuit lightning arrester |
| CN2852338Y (en) * | 2005-10-24 | 2006-12-27 | 董立新 | Composite casing zinc oxide lightning arrester |
| US7199587B2 (en) * | 2001-11-13 | 2007-04-03 | Hurwicz Maxim D | Portable circuit interrupter tester and method |
| CN200979828Y (en) * | 2006-09-25 | 2007-11-21 | 深圳市银星电力电子有限公司 | An extra high voltage and maintenance-free arrester for a transmission line |
| WO2008135019A2 (en) * | 2007-05-05 | 2008-11-13 | Obo Bettermann Gmbh & Co. Kg | Device for protecting data lines against overvoltages |
| CN201207564Y (en) * | 2008-04-23 | 2009-03-11 | 西安安捷迅电气有限公司 | Protection device for transformer earthing |
| CN201877234U (en) * | 2010-12-12 | 2011-06-22 | 虞城县供电有限责任公司 | Detachable lightning arrester |
| CN202678726U (en) * | 2012-06-29 | 2013-01-16 | 江苏正佰电气股份有限公司 | Intelligent lightning protection power distribution cabinet |
-
2017
- 2017-10-09 CN CN201710929957.8A patent/CN107861057B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0911937A2 (en) * | 1997-10-21 | 1999-04-28 | ABBPATENT GmbH | Test device for a fault current circuit breaker |
| US7199587B2 (en) * | 2001-11-13 | 2007-04-03 | Hurwicz Maxim D | Portable circuit interrupter tester and method |
| CN2785118Y (en) * | 2005-04-12 | 2006-05-31 | 西安电瓷研究所 | Failure indicator for circuit lightning arrester |
| CN2852338Y (en) * | 2005-10-24 | 2006-12-27 | 董立新 | Composite casing zinc oxide lightning arrester |
| CN200979828Y (en) * | 2006-09-25 | 2007-11-21 | 深圳市银星电力电子有限公司 | An extra high voltage and maintenance-free arrester for a transmission line |
| WO2008135019A2 (en) * | 2007-05-05 | 2008-11-13 | Obo Bettermann Gmbh & Co. Kg | Device for protecting data lines against overvoltages |
| CN201207564Y (en) * | 2008-04-23 | 2009-03-11 | 西安安捷迅电气有限公司 | Protection device for transformer earthing |
| CN201877234U (en) * | 2010-12-12 | 2011-06-22 | 虞城县供电有限责任公司 | Detachable lightning arrester |
| CN202678726U (en) * | 2012-06-29 | 2013-01-16 | 江苏正佰电气股份有限公司 | Intelligent lightning protection power distribution cabinet |
Non-Patent Citations (3)
| Title |
|---|
| 严增容 等: "避雷器脱离器的研究与试制", 《电网技术》 * |
| 林楚标 等: "110kV整只氧化锌避雷器雷电冲击老化特性研究", 《南方电网技术》 * |
| 闫文奕 等: "热爆式脱离器性能及试验方法研究", 《电瓷避雷器》 * |
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| CN107861057B (en) | 2020-08-11 |
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