CN107219419A - One kind is super, ultra-high voltage lightning arrester rapid degradation method and system - Google Patents
One kind is super, ultra-high voltage lightning arrester rapid degradation method and system Download PDFInfo
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- CN107219419A CN107219419A CN201710383443.7A CN201710383443A CN107219419A CN 107219419 A CN107219419 A CN 107219419A CN 201710383443 A CN201710383443 A CN 201710383443A CN 107219419 A CN107219419 A CN 107219419A
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R31/003—Environmental or reliability tests
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Abstract
One kind is super, ultra-high voltage lightning arrester rapid degradation method and system, steps of the method are：S1：Arrester is first disassembled, needs selection to puncture valve block quantity according to arrester degradation；S2：Valve block is sealed in into impulse current generator as resistance one by one, makes impulse current generator output current ripple, is carried out continuously impact test several times；S3：Electrolyte solution is configured, valve block is put into electrolyte solution and is heated to after certain temperature, keeps constant temperature to stand after a period of time, is assembled after taking-up, and a certain amount of electrolyte solution is poured into porcelain vase, is encapsulated.The system is used for implementing the above method.The present invention has the advantages that easy to operate, principle is simple, be capable of the acting characteristic of rapid degradation arrester valve piece and make overall inside arrester make moist.
Description
Technical field
Present invention relates generally to arrester field, a kind of super, ultra-high voltage lightning arrester rapid degradation method and system are refered in particular to.
Background technology
There are two main causes in the performance degradation of existing super, ultra-high voltage lightning arrester：1）Arrester poor sealing, valve block
Drying is not thorough, is made the reasons such as internal china bowl is ruptured or outer insulator is damaged by impact shock in transit, long-term in arrester
Moisture in the environment that exposes to the sun and rain, air penetrates into and accumulated, and makes its internal wetted.2）The power frequency in long-term running
Electric current flows continuously through Zinc-Oxide Arrester resistor valve sheet, and because indivedual valve block aging characteristics are bad, the homogeneity of valve block is poor, makes electricity
Bit distribution is uneven, the aging first of part valve block, causes arrester reference voltage to decline, current in resistance property and power attenuation increase,
Vicious circle is formed, the overall aging of arrester is ultimately resulted in.
From the foregoing, it will be observed that arrester performance degradation is long-term, the slow process of equipment in the process of running in itself, it is few
Then some months, at most reach the several years, and laboratory carries out arrester research and generally requires to obtain in a short time after deterioration in various degree
Arrester.Accordingly, it would be desirable to which short-term carry out rapid degradation, it is necessary to which a set of system for being capable of rapid degradation arrester is filled to arrester
Put.Arrester rapid degradation is realized, is quickly to make arrester valve piece aging and make arrester internal wetted, it is necessary to increase valve
Contact of the voltage and increase arrester that piece is born with electrolyte solution.
The content of the invention
The technical problem to be solved in the present invention is that：The technical problem existed for prior art, the present invention provides one
Kind is easy to operate, principle is simple, be capable of the acting characteristic of rapid degradation arrester valve piece and make what is integrally made moist inside arrester
Super, ultra-high voltage lightning arrester rapid degradation method and system.
In order to solve the above technical problems, the present invention uses following technical scheme：
One kind is super, ultra-high voltage lightning arrester rapid degradation method, and its step is：
S1：Arrester is first disassembled, needs selection to puncture valve block quantity according to arrester degradation；
S2：Valve block is sealed in into impulse current generator as resistance one by one, it is 8/ to make impulse current generator output current wave
20 μ s current wave, is carried out continuously impact test several times；
S3：Electrolyte solution is configured, valve block is put into electrolyte solution and is heated to after certain temperature, when holding constant temperature stands one section
Between after, assembled after taking-up, and pour into a certain amount of electrolyte solution into porcelain vase, encapsulated.
It is used as the further improvement of above-mentioned technical proposal：
It is used as the further improvement of the inventive method：The amplitude of the current wave is set as valve block rush of current tolerance electric current
1.5 times of values.
It is used as the further improvement of the inventive method：The impact test number of times is 15~25 times.
It is used as the further improvement of the inventive method：Electrolyte solution is heated to 75~82 DEG C in the step S3.
It is used as the further improvement of the inventive method：In the step S1, during selection valve block quantity, minor degradation is being carried out
When choose 6~15, carry out typically deteriorate when choose 16~25, carry out serious deterioration when choose 26~35, entering
35~45 are chosen when row severe is deteriorated.
The present invention further provides one kind is super, ultra-high voltage lightning arrester rapid degradation system, including impulse current generator and
Electrolyte solution is filled with insulating box, the insulating box, the impulse current generator includes step-up transformer, rectification silicon
Heap, protective resistance, capacitor bank, discharging gap, loop inductance, current divider, wave regulating resistor, divider and oscillograph, it is described to keep away
The arrester valve piece of thunder device is sealed in after impulse current generator as load, and adjusting the wave regulating resistor makes impulse current generator
Dash current ripple is exported, impact test several times is carried out continuously；The arrester valve piece after impact test is completed to be placed in insulating box.
It is used as the further improvement of present system：The impulse current generator output waveform is electric for 8/20 μ s impact
Flow ripple.
It is used as the further improvement of present system：The electrical conductivity of the electrolyte solution is 10~200 μ s/cm,
It is used as the further improvement of present system：The insulating box is used for containing 20~50L of volume electrolyte solution and guarantor
Temperature is held at 80 DEG C.
Compared with prior art, the advantage of the invention is that：The super of the present invention, ultra-high voltage lightning arrester rapid degradation method and
System, easy to operate, principle is simple, is capable of the acting characteristic of rapid degradation arrester valve piece, makes overall inside arrester make moist.
Brief description of the drawings
Fig. 1 is the super of the present invention, the schematic flow sheet of ultra-high voltage lightning arrester rapid degradation method.
Fig. 2 is that the structural principle of impulse current generator in the super of the present invention, ultra-high voltage lightning arrester rapid degradation system shows
It is intended to.
Fig. 3 is the principle schematic diagram of insulating box in the super of the present invention, ultra-high voltage lightning arrester rapid degradation system.
Marginal data：
1st, step-up transformer；2nd, rectification silicon stack；3rd, protective resistance；4th, capacitor bank；5th, discharging gap；6th, loop inductance；7th, divide
Flow device；8th, wave regulating resistor；9th, arrester valve piece；10th, divider；11st, oscillograph；12nd, electrolyte solution；13rd, insulating box.
Embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
As shown in figure 1, one kind of the present invention is super, ultra-high voltage lightning arrester rapid degradation method, its step is：
S1：Arrester is first disassembled, needs selection to puncture valve block quantity according to arrester degradation；
In specific use example, it can select according to actual needs, such as certain 500kV arrester single-unit is by 45 zinc oxide
Valve block is constituted, and 6~15 can be chosen when carrying out minor degradation, and 16~25 can be chosen when carrying out and typically deteriorating,
Carry out that during serious deterioration 26~35 can be chosen, 35~45 can be chosen when carrying out severe deterioration.
S2：Valve block is sealed in into impulse current generator as resistance one by one, regulation wave regulating resistor makes impulse current generator
Output current wave is 8/20 μ s current wave, and amplitude is set as that valve block heavy current impact is resistant to 1.5 times of values of electric current, continuously entered
Capable impact test several times.
In concrete application example, 15~25 experiments can be selected according to actual needs, such as using 20 experiments.
S3：Electrolyte solution 12 is configured, valve block is put into electrolyte solution 12 and is heated to after certain temperature, keeps constant temperature quiet
Put after a period of time, assembled after taking-up, and a certain amount of electrolyte solution 12 is poured into porcelain vase, after encapsulation.
In concrete application example, 75~82 DEG C of electrolyte solution 12 can be selected according to actual needs, such as choose 80
DEG C electrolyte solution 12, keep constant temperature stand 24 hours.
As shown in Figures 2 and 3, the present invention further discloses a kind of super, ultra-high voltage lightning arrester rapid degradation system, including
Electrolyte solution 12 is filled with impulse current generator and insulating box 13, insulating box 13, impulse current generator includes boosting
Transformer 1, rectification silicon stack 2, protective resistance 3, capacitor bank 4, discharging gap 5, loop inductance 6, current divider 7, wave regulating resistor 8,
Divider 10 and oscillograph 11, the arrester valve piece 9 of arrester are sealed in after impulse current generator as load, regulation harmonic electricity
Resistance 8 makes impulse current generator export dash current ripple, is carried out continuously impact test several times；Complete lightning-arrest after impact test
Device valve block 9 is placed in insulating box 13.
In concrete application example, impulse current generator output waveform is 8/20 μ s dash current ripple.
In concrete application example, the electrical conductivity of electrolyte solution 12 is 10~200 μ s/cm, and insulating box 13 can be for
Contain 20~50L of volume solution.
In concrete application example, insulating box 13 can accommodate electrolyte solution 12 and maintain the temperature at 80 DEG C.
It the above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention
Scope.
Claims (10)
1. one kind is super, ultra-high voltage lightning arrester rapid degradation method, it is characterised in that step is：
S1：Arrester is first disassembled, needs selection to puncture valve block quantity according to arrester degradation；
S2：Valve block is sealed in into impulse current generator as resistance one by one, makes impulse current generator output current ripple, continuously enters
Capable impact test several times；
S3：Electrolyte solution is configured, valve block is put into electrolyte solution and is heated to after certain temperature, when holding constant temperature stands one section
Between after, assembled after taking-up, and pour into a certain amount of electrolyte solution into porcelain vase, encapsulated.
2. super, ultra-high voltage lightning arrester rapid degradation method according to claim 1, it is characterised in that the current wave
Amplitude is set as that valve block rush of current is resistant to 1.5 times of values of electric current.
3. super, ultra-high voltage lightning arrester rapid degradation method according to claim 1, it is characterised in that the impact test
Number of times is 15~25 times.
4. super, ultra-high voltage lightning arrester rapid degradation method according to claim 1, it is characterised in that in the step S3
Electrolyte solution is heated to 75~82 DEG C.
5. super, the ultra-high voltage lightning arrester rapid degradation method according to any one in Claims 1 to 4, it is characterised in that
In the step S1, during selection valve block quantity, 6~15 are chosen when carrying out minor degradation, is chosen when carrying out and typically deteriorating
16~25,26~35 are chosen when carrying out serious deterioration, 35~45 are chosen when carrying out severe deterioration.
6. one kind is super, ultra-high voltage lightning arrester rapid degradation system, it is characterised in that including impulse current generator and insulating box
（13）, the insulating box（13）It is interior to be filled with electrolyte solution（12）, the impulse current generator include step-up transformer
（1）, rectification silicon stack（2）, protective resistance（3）, capacitor bank（4）, discharging gap（5）, loop inductance（6）, current divider（7）, adjust
Ripple resistance（8）, divider（10）And oscillograph（11）, the arrester valve piece of the arrester（9）Impact electricity is sealed in as load
After flow-generator, the wave regulating resistor is adjusted（8）Impulse current generator is exported dash current ripple, be carried out continuously and rush several times
Hit experiment；Complete the arrester valve piece after impact test（9）It is placed in insulating box（13）It is interior.
7. super, ultra-high voltage lightning arrester rapid degradation system according to claim 6, it is characterised in that the dash current
Generator output waveform is 8/20 μ s dash current ripple.
8. super, ultra-high voltage lightning arrester rapid degradation system according to claim 6, it is characterised in that the electrolyte is molten
Liquid（12）Electrical conductivity be 10~200 μ s/cm.
9. super, ultra-high voltage lightning arrester rapid degradation system according to claim 6, it is characterised in that the insulating box
（13）For containing 20~50L of volume electrolyte solution（12）.
10. super, ultra-high voltage lightning arrester rapid degradation system according to claim 6, it is characterised in that the insulating box
（13）Interior electrolyte solution（12）It is maintained at 80 DEG C of temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710383443.7A CN107219419B (en) | 2017-05-26 | 2017-05-26 | Rapid degradation method and system for ultra-high voltage and extra-high voltage lightning arrester |
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| CN201710383443.7A CN107219419B (en) | 2017-05-26 | 2017-05-26 | Rapid degradation method and system for ultra-high voltage and extra-high voltage lightning arrester |
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| CN107219419A true CN107219419A (en) | 2017-09-29 |
| CN107219419B CN107219419B (en) | 2023-08-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109298263A (en) * | 2018-10-22 | 2019-02-01 | 西安交通大学 | Arrester valve piece accelerated aging tester based on dc-couple impact power supply |
| CN114441872A (en) * | 2022-01-14 | 2022-05-06 | 西南交通大学 | ZnO varistor aging state evaluation method based on temperature influence |
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| CN104502819A (en) * | 2014-12-25 | 2015-04-08 | 中国西电电气股份有限公司 | Arrester impact characteristics testing device and method |
| CN205374569U (en) * | 2015-12-22 | 2016-07-06 | 海南电力技术研究院 | Impact current testing device |
| CN106680652A (en) * | 2017-01-20 | 2017-05-17 | 国网河南省电力公司电力科学研究院 | Metal oxide arrester electrification test experiment research system |
| CN206960567U (en) * | 2017-05-26 | 2018-02-02 | 国家电网公司 | One kind is super, ultra-high voltage lightning arrester rapid degradation system |
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- 2017-05-26 CN CN201710383443.7A patent/CN107219419B/en active Active
Patent Citations (6)
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| JP2005292107A (en) * | 2004-03-31 | 2005-10-20 | Takemitsu Higuchi | Deterioration diagnostic system based on resonance point and impedance extreme value point |
| CN102298108A (en) * | 2011-05-25 | 2011-12-28 | 重庆大学 | Impact characteristic simulation test apparatus of earthing device and method thereof |
| CN104502819A (en) * | 2014-12-25 | 2015-04-08 | 中国西电电气股份有限公司 | Arrester impact characteristics testing device and method |
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| CN109298263A (en) * | 2018-10-22 | 2019-02-01 | 西安交通大学 | Arrester valve piece accelerated aging tester based on dc-couple impact power supply |
| CN114441872A (en) * | 2022-01-14 | 2022-05-06 | 西南交通大学 | ZnO varistor aging state evaluation method based on temperature influence |
| CN114441872B (en) * | 2022-01-14 | 2023-03-10 | 西南交通大学 | ZnO varistor aging state evaluation method based on temperature influence |
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| CN107219419B (en) | 2023-08-29 |
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