CN110308373B - Impact action characteristic test platform with series gap lightning arrester - Google Patents
Impact action characteristic test platform with series gap lightning arrester Download PDFInfo
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- CN110308373B CN110308373B CN201910423368.1A CN201910423368A CN110308373B CN 110308373 B CN110308373 B CN 110308373B CN 201910423368 A CN201910423368 A CN 201910423368A CN 110308373 B CN110308373 B CN 110308373B
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 239000012212 insulator Substances 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 230000002238 attenuated effect Effects 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
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- 238000013016 damping Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 238000011056 performance test Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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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
- G01R31/12—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
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Abstract
The invention discloses a surge action characteristic test platform for a lightning arrester with a series gap, which relates to the technical field of lightning protection and comprises a control room 1, a surge voltage divider 2, a surge voltage generator 3, a lifting device 4, a composite insulator 5, a lightning arrester with a series gap 6, a steel pipe 7, a post insulator 8 and a post insulator 9, wherein the control room can control the lifting device to adjust the air gap distance of the lightning arrester with the series gap in real time, and a tester does not need to cut off a power supply and then walk into a test site to adjust the air gap distance of the lightning arrester with the series gap; the impact action characteristics of the lightning arresters with the serial gaps under different air gap distances of the lightning arresters with the serial gaps can be obtained through computer measurement, so that the protection performance of the lightning arresters with the serial gaps under different air gap distances of the lightning arresters is researched, and the air gap distances of the lightning arresters with the serial gaps are selected.
Description
Technical Field
The invention relates to the technical field of lightning protection, in particular to a lightning arrester impact action characteristic test platform with a series gap.
Background
The lightning arrester is an important device for overvoltage protection of high-voltage electrical equipment, and is widely applied to lightning protection of transmission lines. The lightning arrester with the series gap consists of a lightning arrester body and the series gap, and is connected in parallel at two ends of an insulator when in use, when a transmission line is struck by lightning, and the voltage at two ends of the insulator exceeds the action voltage of the lightning arrester, the series gap of the lightning arrester breaks down, and the lightning arrester acts, so that the lightning overvoltage at two ends of the insulator is effectively limited, and the effect of protecting the line from faults caused by lightning is achieved.
The protection performance of the lightning arrester with the series gap is mainly determined by the impact characteristic of the lightning arrester and the insulation fit between insulators, whether the protection performance of the lightning arrester with the series gap can meet the actual production requirement or not is researched, and an impact test needs to be carried out on the lightning arrester to research the action characteristic under the lightning impulse voltage, including the 50% lightning impulse discharge voltage, the lightning impulse volt-second characteristic and the like of the lightning arrester.
Once the shape of the body and the electrode of the arrester with the series gap is determined, the impact action characteristic of the arrester is mainly determined by the series gap distance, so that when the impact action characteristic of the arrester is researched, the impact action characteristics of the arrester under different series gap conditions are often required to be researched so as to select the proper series gap distance of the arrester, or whether the impact action characteristic of the arrester under a certain gap distance meets the requirement of insulation fit is required to be researched.
Disclosure of Invention
The invention aims to provide a test platform for impact action characteristics of a lightning arrester with a series gap so as to test the impact characteristics of the lightning arrester. In order to solve the problems, the specific technical scheme is as follows:
A test platform for impact action characteristics of a lightning arrester with a series gap, the device comprises a control room, a lifting device, an impact transformer, a composite insulator, a lightning arrester with a series gap, an impact voltage generator, a steel pipe, a digital oscilloscope and a post insulator; the control chamber is respectively connected with the lifting device, the impulse voltage generator and the impulse voltage divider; the vertical lower end of the lifting device is hung with a composite insulator, the composite insulator is connected with a lightning arrester with a series gap, the impulse voltage generator is respectively connected with a steel pipe and an impulse voltage divider, the steel pipe is positioned at the vertical lower position of the lightning arrester with the series gap and forms an air gap of the lightning arrester with the series gap, and the post insulator I and the post insulator II are respectively connected with the two ends of the steel pipe; the control room is used for controlling the lifting device to adjust the lifting height of the lightning arrester with the series gap so as to adjust the air gap distance of the lightning arrester, controlling the impulse voltage generator to output impulse voltage to the steel pipe, and collecting voltage data after the voltage division of the stamping voltage divider; the lifting device is used for adjusting the lifting height of the lightning arrester with the series gap in real time and feeding back the air gap distance of the lightning arrester with the series gap to the control room in real time; the impulse voltage generator is used for outputting impulse voltages with different wave heads, wave tails and amplitude values to the steel pipe; the impulse voltage divider is used for dividing impulse voltage output by the impulse voltage generator and outputting the divided voltage to the control room; the composite insulator is used for electrically insulating the lifting device and the lightning arrester with the series gap; the steel pipe is used for simulating a lead in an actual working condition; the post insulator I and the post insulator II are used for forming an insulating effect between the steel pipe and the ground and supporting the steel pipe.
Preferably, the control room comprises a control console, a digital oscilloscope and a computer, wherein the control console is provided with the digital oscilloscope and the computer, the measuring end of the digital oscilloscope is connected with an attenuator, the digital oscilloscope is connected with an impact voltage divider through the attenuator, the control console is connected with a lifting device and an impact voltage generator, the computer is respectively connected with the digital oscilloscope and the control console,
Preferably, the digital oscilloscope is used for displaying the impact voltage attenuated by the attenuator and transmitting corresponding waveform data to the computer; the computer is used for analyzing the waveform data transmitted by the digital oscilloscope, controlling the lifting height of the lifting device through the control console according to the analysis result, and controlling the impulse voltage generator to output impulse voltages with different wave heads, wave tails and amplitude values to the steel pipe.
Preferably, the analog bandwidth of the digital oscilloscope is 500MHz, and the sampling rate is 100 MS/s.
Preferably, the lifting device is an electric hoist, a height measurement module is fixed on the electric hoist, and the height measurement module is used for feeding back the ground distance of the height measurement module on the electric hoist to the control room in real time.
Preferably, the height measurement module comprises a laser ranging device and a Bluetooth communication module, wherein the laser ranging device is connected with the Bluetooth communication module, and the Bluetooth communication module is connected with the control room; the laser ranging device is used for measuring the distance to the ground of the laser ranging device, and the Bluetooth communication module is used for transmitting the distance to the ground of the laser ranging device, which is measured by the laser ranging module, to the control room.
Preferably, the lightning arrester with the series gap is a pure air gap lightning arrester, and comprises a lightning arrester body and an electrode, wherein the electrode is connected to the lower end of the lightning arrester body; the steel tube and the electrode with the series gap arrester form an air gap of the arrester together.
Preferably, the impact voltage divider is a resistance-capacitance voltage divider, and the transformation ratio of the resistance-capacitance voltage divider is 4000-6000.
Preferably, the surge voltage generator comprises a rectifying power supply, a protection resistor, a surge voltage generator body, an isolation ball gap, a wave front resistor and a discharge resistor; the impulse voltage generator main body comprises a main capacitor, an ignition ball gap, a charging resistor, a damping resistor and a middle ball gap; the rectification power supply comprises a voltage regulator, a test transformer and a high-voltage silicon stack, wherein a secondary coil of the test transformer is connected with the high-voltage silicon stack and a protection resistor in series and charges a main capacitor of the impulse voltage generator main body; the isolating ball gap and the wave front resistor are connected to the high-voltage output end of the impulse voltage generator in series, the discharging resistor is connected between the output end of the isolating ball gap and the ground, and after the impulse voltage generator body is charged and triggered by the ignition ball gap, impulse voltage is output to the high-voltage output end of the impulse voltage generator through the isolating ball gap and the wave front resistor and is output to the steel pipe through the high-voltage output end of the impulse voltage generator.
Preferably, the composite insulator is a 500kV voltage class composite insulator.
Preferably, the pillar insulator I and the pillar insulator II are respectively and vertically fixedly connected to the lower positions of the two ends of the steel pipe.
The beneficial effects of the invention are as follows:
The control room can control the lifting device to adjust the air gap distance of the lightning arresters with the serial gap in real time, and a tester does not need to cut off a power supply and then walk into a test site to adjust the air gap distance of the lightning arresters with the serial gap; the impact action characteristics of the lightning arresters with the serial gaps under different air gap distances of the lightning arresters with the serial gaps can be obtained through computer measurement, so that the protection performance of the lightning arresters with the serial gaps under different air gap distances of the lightning arresters is researched, and the air gap distances of the lightning arresters with the serial gaps are selected.
Drawings
FIG. 1 is a schematic diagram of a circuit configuration of a test device according to the present invention;
legend description: 1: a control room; 2: an impact voltage divider; 3: a surge voltage generator; 4: a lifting device; 5: synthesizing an insulator; 6: a lightning arrester with a series gap; 7: a steel pipe; 8: a post insulator I;9: post insulator II;10: a console; 11: a digital oscilloscope; 12: a computer; 13: and a height measurement module.
FIG. 2 is a schematic diagram of a surge voltage generator;
Legend description: AT: a voltage regulator; t: a test transformer; d: a high-voltage silicon stack; r: a protection resistor; r: a charging resistor; c1 to Cn: a main capacitor; g1: ignition ball gaps; g 2-gn: a middle ball gap; rd: damping resistance; g0: isolating the ball gap; rf: a wavefront resistance; rt: and a discharge resistor.
Detailed Description
Fig. 1 shows a specific embodiment of the surge action characteristic test platform with the series gap lightning arrester of the present invention, and as shown in fig. 1, a surge action characteristic test platform with the series gap lightning arrester includes a control room 1: hoisting device 4: impulse voltage generator 3: impact voltage divider 2: synthetic insulator 5: lightning arrester with series gap 6: steel pipe 7: post insulator I8: post insulator II 9; the control room 1 is respectively connected with the hoisting device 4: impulse voltage generator 3: the impact voltage divider 2 is connected; the vertical lower end of the lifting device 4 is hung with a composite insulator 5, the composite insulator 5 is connected with a lightning arrester 6 with a series gap, and the impulse voltage generator 3 is respectively connected with the steel pipe 3: the impact voltage divider 2 is connected, the steel pipe 7 is positioned at the vertical lower position of the lightning arrester 6 with the series gap, and forms an air gap of the lightning arrester together with the lightning arrester 6 with the series gap, and the post insulator I8: the post insulators II 9 are respectively and vertically fixedly connected to the lower positions of the two ends of the steel pipe 7, the control room 1 is used for controlling the lifting device 4 to adjust the lifting height of the lightning arrester 6 with the series gap through a control cable so as to adjust the air gap distance of the lightning arrester, controlling the impulse voltage generator 3 to output impulse voltage to the steel pipe 7 through a high-voltage lead, and collecting voltage data after the voltage is divided by the stamping voltage divider 2; the lifting device 4 is used for adjusting the lifting height of the lightning arrester 6 with the series gap in real time and feeding back the air gap distance of the lightning arrester 6 with the series gap to the control room 1 in real time; the impulse voltage generator 3 is used for outputting different wave heads: wave tail: impulse voltage with amplitude value reaches the steel pipe 7; the impulse voltage divider 2 is used for dividing impulse voltage output by the impulse voltage generator 3 and outputting the divided voltage to the control room 1 through a measurement cable; the composite insulator 5 is used for electrically insulating the hoisting device 4 and the lightning arrester 6 with the series gap; the steel pipe 7 is used for simulating a lead in an actual working condition; post insulator I8 of (c): the post insulator II 9 serves to form an insulating effect between the steel pipe 7 and the ground and to support the steel pipe 7.
The control room 1 of the present invention comprises a control desk 10: digital oscilloscope 11: computer 12, console 10 is provided with digital oscilloscope 11: the computer 12, the measuring end of the digital oscilloscope 11 is connected with an attenuator, the digital oscilloscope 11 is connected with the impact voltage divider 2 through the attenuator, and the console 10 is connected with the lifting device 4: impulse voltage generator 3 is connected, and computer 12 is connected with digital oscilloscope 11 respectively: the control console 10 is connected, the attenuator is used for attenuating the impulse voltage transmitted by the impulse voltage generator 3, and transmitting the attenuated impulse voltage to the digital oscilloscope 11 through the radio frequency coaxial cable, and the attenuation multiple of the attenuator is 100 times; the digital oscilloscope 11 is used for displaying the impact voltage attenuated by the attenuator and transmitting corresponding waveform data to the computer 12 through an RS232 cable; the computer 12 is used for analyzing the waveform data transmitted by the digital oscilloscope 11, controlling the lifting height of the lifting device 4 through the console 10 according to the analysis result, and controlling the impulse voltage generator 3 to output different wave heads: wave tail: the surge voltage of the amplitude is applied to the steel pipe 7.
The lifting device 4 is an electric hoist, a height measurement module 13 is fixed on the electric hoist, and the height measurement module 13 is used for feeding back the ground distance of the height measurement module 13 on the electric hoist to the control room 1 in real time; the height measurement module 13 comprises a laser ranging device and a Bluetooth communication module, wherein the laser ranging device is connected with the Bluetooth communication module, and the Bluetooth communication module is connected with the control room 1; the laser rangefinder is used for measuring laser rangefinder's distance to ground, and bluetooth communication module is used for transmitting laser rangefinder's distance to ground that laser rangefinder measured to computer 12 of control room 1, and laser rangefinder measures the high measurement module distance to ground D on the electric block, and computer 12 is according to the steel pipe distance to ground D1 of input in advance: the distance D2 from the laser ranging device to the lightning arrester electrode with the series gap is calculated and displayed, and the air gap length L of the lightning arrester with the series gap is calculated and displayed, wherein the calculation formula is L=D-D1-D2.
The lightning arrester 6 with the series gap is a pure air gap lightning arrester and comprises a lightning arrester body and an electrode, wherein the electrode is connected to the lower end of the lightning arrester body; the steel tube 7 forms a lightning arrester air gap together with the electrode with the series gap lightning arrester 6.
As shown in fig. 2, the surge voltage generator 3 includes a rectified power supply: protection resistor r: impulse voltage generator body: isolation ball gap g0: wavefront resistance Rf: a discharge resistor Rt; the surge voltage generator main body comprises main capacitors C1-Cn: ignition ball gap g1: charging resistor R: damping resistor rd and middle ball gap g 2-gn; the rectified power supply comprises a voltage regulator: test transformer T and high voltage silicon heap D, test transformer T's secondary coil and high voltage silicon heap D: the protection resistor r is connected in series and charges main capacitors C1-Cn of the surge voltage generator main body; the isolating ball gap g0 and the wavefront resistor Rf are connected to the high-voltage output end of the impulse voltage generator 7 in series, the discharging resistor Rt is connected between the output end of the isolating ball gap g0 and the ground, and after the impulse voltage generator body is charged and triggered by the ignition ball gap g1, the impulse voltage generator body is triggered by the isolating ball gap g0: the wavefront resistor Rf outputs the surge voltage to the high voltage output end of the surge voltage generator 3, and outputs the surge voltage to the steel pipe 7 through the bare copper wire by way of the high voltage output end of the surge voltage generator 7.
The composite insulator 5 is a 500kV voltage class composite insulator, so that the lightning arrester with the series gap and the lifting device form electrical insulation, and discharge between the lightning arrester with the series gap and the lifting device is prevented.
The impulse voltage divider 2 is a resistance-capacitance voltage divider, the transformation ratio of the resistance-capacitance voltage divider is 4000-6000, one end of the resistance-capacitance voltage divider is connected with the high-voltage output end of the impulse voltage generator 3 through a bare copper wire, and the other end of the resistance-capacitance voltage divider is grounded.
Console 1: impulse voltage generator 3: the lightning arresters 6 with the series gaps are grounded.
In the embodiment, the diameter of the steel pipe 7 is 20-30 mm, and the diameter of the steel pipe 7 is equal to the diameter of a wire on an actual line by simulating the wire of the power transmission line under the operation condition of an actual arrester with a series gap.
The analog bandwidth of the digital oscilloscope 11 of the present invention was 500MHz and the sampling rate was 100 MS/s.
The surge voltage generator 3 is 3600kV surge voltage generator, 3600kV is typical value, in fact, according to which voltage class the test object is, the voltage required by the test can be output mainly, the higher the voltage class of the lightning arrester with the series gap is, the higher the voltage required to be output by the surge voltage generator is, and the amplitude of the output voltage required by the lightning arrester with the series gap, which is generally 220kV, is not higher than 2000kV.
Working principle:
The computer 12 of the control room 1 controls the impulse voltage generator 3 to output impulse voltage to the steel pipe 7, the impulse voltage divider 2 collects the impulse voltage output by the impulse voltage generator 3 and divides the impulse voltage, the divided impulse voltage is attenuated by the attenuator and then is transmitted to the digital oscilloscope 11 of the control room 1, the digital oscilloscope 11 displays the attenuated impulse voltage and transmits corresponding waveform data to the computer 12, and the computer 12 analyzes parameters such as wave head, wave tail, amplitude and the like of the impulse voltage according to the obtained waveform data.
Meanwhile, the laser ranging device of the height measuring module 13 measures the distance D between the height measuring module and the ground on the electric hoist, and the computer 12 measures the distance D1 between the ground and the steel pipe according to the pre-input distance D1: the distance D2 from the laser ranging device to the lightning arrester electrode with the series gap is calculated and displayed, and the air gap length L of the lightning arrester with the series gap is calculated and displayed, wherein the calculation formula is L=D-D1-D2.
The computer 12 determines the arrester air gap length L based on the resulting arrester air gap length with series gap arrester: wave head of impulse voltage: wave tail: amplitude and other parameters, and analyzing the action characteristics of the lightning arrester 6 with the series gap under the current impact voltage.
The computer 12 controls the lifting device 4 through the control console 10 to adjust the lifting height of the lightning arrester 6 with the series gap so as to adjust the air gap distance L of the lightning arrester, and simultaneously controls the impulse voltage generator 3 through the control console 10 to output different wave heads: wave tail: the impact voltages with parameters such as amplitude and the like are applied to the steel pipe 7 so as to analyze the action characteristics of the lightning arresters 6 with the series gaps under different impact voltages.
The present invention is not limited to the above embodiments, but is merely preferred embodiments of the present invention, and the present invention is not limited thereto, and any modifications may be made within the spirit and principles of the present invention: equivalent substitutions and modifications and the like are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a take series gap arrester impact action characteristic test platform which characterized in that: the device comprises a control room (1), a lifting device (4), a surge voltage generator (3), a surge voltage divider (2), a composite insulator (5), a lightning arrester with a series gap (6), a steel pipe (7), a post insulator I (8) and a post insulator II (9); the control room (1) is respectively connected with the lifting device (4), the impulse voltage generator (3) and the impulse voltage divider (2); the vertical lower end of the lifting device (4) is hung with a composite insulator (5), the composite insulator (5) is connected with a lightning arrester (6) with a series gap, the impulse voltage generator (3) is respectively connected with a steel pipe (7) and an impulse voltage divider (2), the steel pipe (7) is positioned at the vertical lower position of the lightning arrester (6) with the series gap, the steel pipe and the lightning arrester (6) with the series gap form an air gap of the lightning arrester, and the post insulator I (8) and the post insulator II (9) are respectively connected with the two ends of the steel pipe (7); the control room (1) is used for controlling the lifting device (4) to adjust the lifting height of the lightning arrester (6) with the series gap so as to adjust the air gap distance of the lightning arrester, controlling the impulse voltage generator (3) to output impulse voltage to the steel pipe (7), and collecting voltage data after the stamping voltage divider (2) is used for dividing the voltage; the lifting device (4) is used for adjusting the lifting height of the lightning arrester (6) with the series gap in real time and feeding back the air gap distance of the lightning arrester (6) with the series gap to the control room (1) in real time; the impulse voltage generator (3) is used for outputting impulse voltages with different wave heads, wave tails and amplitude values to the steel pipe (7); the impulse voltage divider (2) is used for dividing impulse voltage output by the impulse voltage generator (3) and outputting the divided voltage to the control room (1); the composite insulator (5) is used for electrically insulating the lifting device (4) and the lightning arrester (6) with the series gap; the steel pipe (7) is used for simulating a lead in an actual working condition; the post insulators I (8) and II (9) are used for forming an insulating effect between the steel pipe (7) and the ground and supporting the steel pipe (7); the post insulator I (8) and the post insulator II (9) are respectively and vertically fixedly connected to the lower positions of the two ends of the steel pipe (7).
2. The surge action characteristic test platform with a series gap arrester of claim 1, wherein: the control room (1) comprises a control console (10), a digital oscilloscope (11) and a computer (12), wherein the digital oscilloscope (11) and the computer (12) are arranged on the control console (10), the measuring end of the digital oscilloscope (11) is connected with an attenuator, the digital oscilloscope (11) is connected with an impact voltage divider (2) through the attenuator, the control console (10) is connected with a hoisting device (4) and an impact voltage generator (3), the computer (12) is respectively connected with the digital oscilloscope (11) and the control console (10), and the attenuator is used for attenuating impact voltage transmitted by the impact voltage generator (3) and transmitting the attenuated impact voltage to the digital oscilloscope (11); the digital oscilloscope (11) is used for displaying the impact voltage attenuated by the attenuator and transmitting corresponding waveform data to the computer (12); the computer (12) is used for analyzing waveform data transmitted by the digital oscilloscope (11), controlling the lifting height of the lifting device (4) through the control console (10) according to analysis results, and controlling the impulse voltage generator (3) to output impulse voltages with different wave heads, wave tails and amplitude values to the steel pipe (7).
3. The digital oscilloscope of claim 2 wherein the digital oscilloscope (11) has an analog bandwidth of 500MHz and a sampling rate of 100 MS/s.
4. The surge action characteristic test platform with a series gap arrester of claim 1, wherein: the lifting device (4) is an electric hoist, a height measurement module (13) is fixed on the electric hoist, and the height measurement module (13) is used for feeding back the ground distance of the height measurement module (13) on the electric hoist to the control room (1) in real time.
5. The lifting device of claim 4, wherein: the height measurement module (13) comprises a laser ranging device and a Bluetooth communication module, wherein the laser ranging device is connected with the Bluetooth communication module, and the Bluetooth communication module is connected with the control room (1); the laser ranging device is used for measuring the distance to the ground of the laser ranging device, and the Bluetooth communication module is used for transmitting the distance to the ground of the laser ranging device, which is measured by the laser ranging module, to the control room (1).
6. The surge action characteristic test platform with a series gap arrester of claim 1, wherein: the lightning arrester (6) with the series gap is a pure air gap lightning arrester and comprises a lightning arrester body and an electrode, wherein the electrode is connected to the lower end of the lightning arrester body; the steel tube (7) and the electrode with the series gap lightning arrester (6) form an air gap of the lightning arrester together.
7. The surge performance test platform with the series gap lightning arrester according to claim 1 or 2, wherein: the impact voltage divider (2) is a resistance-capacitance voltage divider, and the transformation ratio of the resistance-capacitance voltage divider is 4000-6000.
8. The surge action characteristic test platform with a series gap arrester of claim 1, wherein: the surge voltage generator (3) comprises a rectifying power supply, a protection resistor (r), a surge voltage generator body, an isolation ball gap (g 0), a wave front resistor (Rf) and a discharge resistor (Rt); the impulse voltage generator main body comprises main capacitors (C1-Cn), ignition ball gaps (g 1), charging resistors (R), damping resistors (rd) and middle ball gaps (g 2-gn); the rectification power supply comprises a voltage regulator, a test transformer (T) and a high-voltage silicon stack (D), wherein a secondary coil of the test transformer (T) is connected in series with the high-voltage silicon stack (D) and a protection resistor (r) and charges main capacitors (C1-Cn) of the impulse voltage generator main body; the isolating ball gap (g 0) and the wave front resistor (Rf) are connected in series to the high-voltage output end of the impulse voltage generator (3), the discharging resistor (Rt) is connected between the output end of the isolating ball gap (g 0) and the ground, and after the impulse voltage generator body is charged and triggered by the ignition ball gap (g 1), impulse voltage is output to the high-voltage output end of the impulse voltage generator (3) through the isolating ball gap (g 0) and the wave front resistor (Rf) and is output to the steel pipe (7) through the high-voltage output end of the impulse voltage generator (3).
9. The surge action characteristic test platform with a series gap arrester of claim 1, wherein: the composite insulator (5) is a 500kV voltage class composite insulator.
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| CN111044809B (en) * | 2019-11-16 | 2022-07-26 | 国网浙江宁波市奉化区供电有限公司 | Test method for measuring maximum protection distance of lightning protection device |
| CN111830372A (en) * | 2020-04-28 | 2020-10-27 | 沈阳工业大学 | Insulation testing device and method for high-temperature solid heat storage insulation lead sleeve |
| CN112344894A (en) * | 2020-10-23 | 2021-02-09 | 广西电网有限责任公司电力科学研究院 | Cross spanning line monitoring, measuring and checking system with adjustable spacing |
| CN114167230A (en) * | 2021-11-12 | 2022-03-11 | 武汉大学 | Long air gap discharge test platform containing suspension conductor and method |
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| JP2003133029A (en) * | 2001-10-22 | 2003-05-09 | Ngk Insulators Ltd | Gap arrester |
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