CN208705434U - High condensation area insulator VFTO flashover property rate of descent experimental rig - Google Patents
High condensation area insulator VFTO flashover property rate of descent experimental rig Download PDFInfo
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- CN208705434U CN208705434U CN201821383249.5U CN201821383249U CN208705434U CN 208705434 U CN208705434 U CN 208705434U CN 201821383249 U CN201821383249 U CN 201821383249U CN 208705434 U CN208705434 U CN 208705434U
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- 239000012212 insulator Substances 0.000 title claims abstract description 83
- 238000009833 condensation Methods 0.000 title claims abstract description 28
- 230000005494 condensation Effects 0.000 title claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 59
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims description 33
- 238000009413 insulation Methods 0.000 claims description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 9
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model embodiment discloses a kind of high condensation area insulator VFTO flashover property rate of descent experimental rig, it include: signal controller, VFTO generating device and weather simulator, wherein: signal controller is electrically connected with the signal input part of VFTO impulse generating unit in VFTO generating device, and the signal output end of VFTO impulse generating unit is connected with climatic simulation device；Climatic simulation device includes climatic simulation case, insulator, testing stand, humidity sensor, wetness display unit, transformer, adjusting pressuring knob, humidifier, spraying device and video camera.By centering insulator in climatic simulation dress and simulating high condensation area surroundings, then lead to promise VFTO generating device and generate VFTO pulse signal effect in insulator, after effect, adjusting the voltage on insulator makes insulator surface that flashover occur, obtain VFTO flashover property rate of descent, insulator image is shot in conjunction with video camera, obtains the influence to insulator.
Description
Technical field
The utility model relates to insulator dielectric surface flashover Characteristics Detection technical field more particularly to a kind of high condensation area insulators
VFTO flashover property rate of descent experimental rig.
Background technique
With the development of China's power grid, the usage quantity of various power equipments is very huge in electric system, insulator conduct
The container of interior insulation is in high condensation environment for a long time, has some impact on to its performance.It is operated in high-tension apparatus
When, since the divide-shut brake speed to switch is slower, prebreakdown and multiple weight can occur between switch contact when suiting capacity current
Combustion forms rise time very short shock wave.The shock wave forms fast transient concussion by multiple reflections, refraction, i.e., express
Fast transient overvoltage (VFTO, Very Fast Transient Overvoltage) signal.VFTO signal can greatly reduce insulator
Performance causes insulator to crack, or even insulator is caused to explode, and the safe and reliable operation of electric system has been seriously endangered, to society
Meeting economy produces larger damage.
Currently, domestic and device therefor less for the research of VFTO has bulky, voltage class is inadequate, circuit electricity
Feel larger, the disadvantages of wave distortion is serious.Therefore, it is impossible to influence of the high condensation area VFTO to insulated porcelain sleeve be known, to make
The safe operation of electric system there are hidden danger.
Utility model content
The utility model provides a kind of high condensation area insulator VFTO flashover property rate of descent experimental rig, to solve to pass
The problems in system technology.
In order to solve the above-mentioned technical problem, the utility model embodiment discloses following technical solution:
A kind of high condensation area insulator VFTO flashover property rate of descent experimental rig, comprising: signal controller, VFTO
Generating device and weather simulator, in which: the signal output end of the signal controller and the VFTO generating device
Input terminal be connected, the output end of the VFTO generating device is connected with the climatic simulation device, and the VFTO occurs
Device is for generating high-voltage pulse and being loaded onto climatic simulation device；The signal controller includes master control platform, pulse
Amplitude control channel and trigger control module, the pulse amplitude control channel are controlled with the master control platform and the triggering respectively
Module electrical connection；The VFTO generating device includes high-tension shielding case and VFTO impulse generating unit, the VFTO pulse generation
Unit is arranged in the high-tension shielding case, the signal input part of the VFTO impulse generating unit and the trigger control module
Electrical connection, the signal output end of the VFTO impulse generating unit are electrically connected with the first end of VFTO pulse cable, the VFTO
The second end of pulse cable is connected with the climatic simulation device；The climatic simulation device include climatic simulation case, insulator,
Testing stand, humidity sensor, wetness display unit, transformer, adjusting pressuring knob, humidifier, spraying device and video camera, the examination
It tests platform to be arranged in the climatic simulation case, the porcelain is set on the testing stand, the humidity sensor and the change
Depressor is connected with the insulator respectively, and the wetness display unit, the adjusting pressuring knob and the humidifier are arranged described
On the outside of climatic simulation case, the wetness display unit is electrically connected with the humidity sensor, the adjusting pressuring knob and the transformer
Electrical connection, the spraying device are arranged in the climatic simulation case, and the spraying device is connected with the humidifier, institute
Video camera setting is stated in the climatic simulation case, the shooting mouth of the video camera is towards the insulator.
Optionally, the VFTO impulse generating unit includes: high voltage silicon rectifier stack, first capacitor device, the second capacitor, third electricity
Container, first resistor device, second resistor, the first charging resistor, the second charging resistor, the first spark ball gap, the second fire
Bouquet gap and harmonic module, the first end of the high voltage silicon rectifier stack are connected with the trigger control module, the high voltage silicon rectifier stack
Second end respectively with the first end of the first capacitor device, the first end of the first resistor device and the first spark ball gap
First end is connected, and the second end of the first capacitor device is connected with the first end of first charging resistor, and described
The second end of one resistor respectively with the first end of the second resistor, the first end of the second capacitor, the second spark ball gap
First end be connected, the second end of the first spark ball gap respectively with the second end of first charging resistor, described
The second end of second capacitor is connected with the first end of second charging resistor, the second end point of the second resistor
It is not connected with the first end of the first end of the third capacitor and the harmonic module, the of second charging resistor
Two ends are connected with the second end of the second spark ball gap with the second end of the third capacitor respectively.
Optionally, a steepness gap is set on the outside of the high-tension shielding case, the steepness gap is separately connected the harmonic
The first end of the second end of module and the VFTO pulse cable.
Optionally, high pressure adapter and high-voltage electricity are provided between the VFTO pulse cable and the climatic simulation device
Cable, the high pressure adapter is separately connected the first end of the VFTO pulse cable and the first end of the high-tension cable, described
The second end of high-tension cable is connected with the insulator.
Optionally, it is provided with the first wall bushing, the second wall bushing and third wall bushing on the high-tension shielding case,
First wall bushing both ends are connected with the first end of the trigger control module and the high voltage silicon rectifier stack respectively, and described
The first end of two wall bushings is separately connected the second end of the first capacitor device and the first end of first charging resistor,
The second end of the first capacitor device and the first end of first charging resistor pass through the second of second wall bushing
End ground connection, the both ends of the third wall bushing be separately connected the harmonic module second end and the steepness gap.
Optionally, the master control platform include Pulse-trigger control button, charging triggering control button, emergency stop button and
Button, the Pulse-trigger control button, charging triggering control button, emergency stop button and charging is arranged in charging time sequence
Time series setting button is electrically connected with the processor of the master control platform respectively.
Optionally, the trigger control module includes switch status display device and power automatic transfer switch, the switch
Status displays and power automatic transfer switch electrical connection.
Optionally, the first insulation barrier, the third are provided between the steepness gap and the third wall bushing
Wall bushing one end is fixed on first insulation barrier, is set between the VFTO pulse cable and the steepness gap
It is equipped with the second insulation barrier, the first end of the VFTO pulse cable is connected with second insulation barrier.
Optionally, the 4th wall bushing is provided on the climatic simulation case, the high-tension cable passes through the described 4th and wears
Wall sleeve is connected with the insulator.
As shown from the above technical solution, a kind of high condensation area insulator VFTO flashover provided by the embodiment of the utility model is special
Property rate of descent experimental rig, comprising: signal controller, VFTO generating device and weather simulator, in which: the signal
The signal output end of generator controller is connected with the input terminal of the VFTO generating device, the output of the VFTO generating device
End is connected with the climatic simulation device, and the VFTO generating device is for generating high-voltage pulse and being loaded onto climatic simulation dress
It sets；The signal controller includes master control platform, pulse amplitude control channel and trigger control module, the pulse amplitude
Control channel is electrically connected with the master control platform and the trigger control module respectively；The VFTO generating device includes high-tension shielding
Case and VFTO impulse generating unit, the VFTO impulse generating unit are arranged in the high-tension shielding case, the VFTO pulse
The signal input part of generating unit is electrically connected with the trigger control module, the signal output end of the VFTO impulse generating unit
It is electrically connected with the first end of VFTO pulse cable, the second end of the VFTO pulse cable is connected with the climatic simulation device
It connects；The climatic simulation device includes climatic simulation case, insulator, testing stand, humidity sensor, wetness display unit, transformer, tune
Knob, humidifier, spraying device and video camera are pressed, the testing stand is arranged in the climatic simulation case, and the insulator is set
It sets on the testing stand, the humidity sensor and the transformer are connected with the insulator respectively, the humidity display
Device, the adjusting pressuring knob and the humidifier are arranged on the outside of the climatic simulation case, the wetness display unit with it is described wet
Sensor electrical connection is spent, the adjusting pressuring knob is electrically connected with the transformer, and the spraying device is arranged in the climatic simulation
In case, the spraying device is connected with the humidifier, and the video camera setting is described to take the photograph in the climatic simulation case
The shooting mouth of camera is towards the insulator.By centering insulator in climatic simulation dress and simulating high condensation area surroundings, so
Lead to promise VFTO generating device afterwards and generate VFTO pulse signal effect after insulator, effect, the voltage adjusted on insulator makes
Flashover occurs for insulator surface, obtains VFTO flashover property rate of descent, shoots insulator image in conjunction with video camera, obtains the shadow to insulator
It rings.
Detailed description of the invention
It, below will be to attached drawing needed in the embodiment in order to illustrate more clearly of the technical solution of the utility model
It is briefly described, it should be apparent that, for those of ordinary skills, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of high condensation area insulator VFTO flashover property rate of descent test dress provided by the embodiment of the utility model
The structural schematic diagram set；
Fig. 2 is a kind of high condensation area insulator VFTO flashover property rate of descent test side provided by the embodiment of the utility model
The flow diagram of method；
In Fig. 1-2, symbol is expressed as: 1- signal controller, 2-VFTO generating device, 3- climatic simulation device, 4-
Master control platform, 5- pulse amplitude control channel, 6- trigger control module, 7- high-tension shielding case, 8-VFTO impulse generating unit, 9-
VFTO pulse cable, 10- climatic simulation case, 11- insulator, 12- testing stand, 13- humidity sensor, 14- wetness display unit, 15-
Transformer, 16- adjusting pressuring knob, 17- humidifier, 18- spraying device, 19- video camera, 20- high voltage silicon rectifier stack, 21- first capacitor
Device, the second capacitor of 22-, 23- third capacitor, 24- first resistor device, 25- second resistor, the first charging resistor of 26-,
The second charging resistor of 27-, 28- the first spark ball gap, 29- the second spark ball gap, 30- harmonic module, 31- steepness gap, 32-
High pressure adapter, 33- high-tension cable, the first wall bushing of 34-, the second wall bushing of 35-, 36- third wall bushing, 37- arteries and veins
Button is arranged in punching triggering control button, 38- charging triggering control button, 39- emergency stop button, 40- charging time sequence,
41- switch status display device, 42- power automatic transfer switch, the first insulation barrier of 43-, the second insulation barrier of 44-, 45- the 4th
Wall bushing.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
As shown in Figure 1, for a kind of high condensation area insulator VFTO flashover property rate of descent test provided by the utility model
Device.Referring to Fig. 1, the high condensation area insulator VFTO flashover property rate of descent experimental rig includes: signal controller
1, VFTO generating device 2 and weather simulator 3, in which: the signal output end and the VFTO of the signal controller 1
The input terminal of generating device 2 is connected, and the output end of the VFTO generating device 2 is connected with the climatic simulation device 3, institute
VFTO generating device 2 is stated for generating high-voltage pulse and being loaded onto climatic simulation device 3.
The signal controller 1 includes master control platform 4, pulse amplitude control channel 5 and trigger control module 6, described
Pulse amplitude control channel 5 is electrically connected with the master control platform 4 and the trigger control module 6 respectively.
The master control platform 4 includes Pulse-trigger control button 37, charging triggering control button 38,39 and of emergency stop button
Button 40, the Pulse-trigger control button 37, charging triggering control button 38, emergency stop button is arranged in charging time sequence
39 and charging time sequence setting button 40 be electrically connected respectively with the processor of the master control platform 4.Pulse-trigger control button 37
Control issues pulse signal, and charging triggering control button 38 charges for controlling to VFTO generating device 2, and emergency braking is pressed
Button 39 is used to control the sequence of charging for the control in Emergency time to signal, charging time sequence setting button 40.It is described
Trigger control module 6 includes switch status display device 41 and power automatic transfer switch 42,41 He of switch status display device
The power automatic transfer switch 42 is electrically connected.
The VFTO generating device 2 includes high-tension shielding case 7 and VFTO impulse generating unit 8, the VFTO pulse generation
Unit 8 is arranged in the high-tension shielding case 7, and the signal input part of the VFTO impulse generating unit 8 and the triggering control
Module 6 is electrically connected, and the signal output end of the VFTO impulse generating unit 8 is electrically connected with the first end of VFTO pulse cable 9, institute
The second end for stating VFTO pulse cable 9 is connected with the climatic simulation device 3.
One steepness gap 31 is set on the outside of the high-tension shielding case 7, and the steepness gap 31 is separately connected the harmonic mould
The first end of the second end of block 30 and the VFTO pulse cable 9.The steepness gap 31 and the third wall bushing 36 it
Between be provided with the first insulation barrier 43, described 36 one end of third wall bushing is fixed on first insulation barrier 43,
The second insulation barrier 44 is provided between the VFTO pulse cable 9 and the steepness gap 31, the VFTO pulse cable 9
First end is connected with second insulation barrier 44.
High pressure adapter 32 and high-tension cable are provided between the VFTO pulse cable 9 and the climatic simulation device 3
33, the high pressure adapter 32 is separately connected the first end of the VFTO pulse cable 9 and the first end of the high-tension cable 33,
The second end of the high-tension cable 33 is connected with the insulator 11.
The VFTO impulse generating unit 8 includes: high voltage silicon rectifier stack 20, first capacitor device 21, the second capacitor 22, third electricity
Container 23, first resistor device 24, second resistor 25, the first charging resistor 26, the second charging resistor 27, the first spark ball
Gap 28, the second spark ball gap 29 and harmonic module 30, the first end of the high voltage silicon rectifier stack 20 are connected with the trigger control module 6
Connect, the second end of the high voltage silicon rectifier stack 20 respectively with the first end of the first capacitor device 21, the first resistor device 24
One end is connected with the first end of the first spark ball gap 28, the second end of the first capacitor device 21 and first charging
The first end of resistor 26 is connected, the second end of the first resistor device 24 respectively with the second resistor 24 first
End, the first end of the second capacitor 22, the first end of the second spark ball gap 29 are connected, and the second of the first spark ball gap 28
End is electric with the second end of first charging resistor 26, the second end of second capacitor 22 and second charging respectively
Resistance device 27 first end be connected, the second end of the second resistor 25 respectively with the first end of the third capacitor 23 and
The first end of the harmonic module 30 is connected, the second end of second charging resistor 27 respectively with second spark ball
The second end of gap 29 is connected with the second end of the third capacitor 23.
The climatic simulation device 3 is aobvious including climatic simulation case 10, insulator 11, testing stand 12, humidity sensor 13, humidity
Show device 14, transformer 15, adjusting pressuring knob 16, humidifier 17, spraying device 18 and video camera 19, the setting of testing stand 12 exists
In the climatic simulation case 10, the insulator 11 is arranged on the testing stand 12, the humidity sensor 13 and the transformation
Device 15 is connected with the insulator 11 respectively, and the wetness display unit 14, the adjusting pressuring knob 16 and the humidifier 17 are set
It sets in 10 outside of climatic simulation case, the wetness display unit 14 is electrically connected with the humidity sensor 13, the pressure regulation rotation
Button 16 is electrically connected with the transformer 15, and the spraying device 18 is arranged in the climatic simulation case 10, the spraying device
18 are connected with the humidifier 17, and the video camera 19 is arranged in the climatic simulation case 10, the video camera 19
Mouth is shot towards the insulator 11.
The first wall bushing 34, the second wall bushing 35 and third wall bushing 36 are provided on the high-tension shielding case 7,
First wall bushing, 34 both ends are connected with the first end of the trigger control module 6 and the high voltage silicon rectifier stack 20 respectively,
The first end of second wall bushing 35 is separately connected the second end and first charging resistor of the first capacitor device 21
The first end of the first end of device 26, the second end of the first capacitor device 21 and first charging resistor 26 passes through described the
The second end of two wall bushings 35 is grounded, and the both ends of the third wall bushing 36 are separately connected the second of the harmonic module 30
End and the steepness gap 31.
The 4th wall bushing 45 is provided on the climatic simulation case 10, it is through walls that the high-tension cable 33 passes through the described 4th
Casing 45 is connected with the insulator 11.
As can be seen from the above embodiments, a kind of high condensation area insulator VFTO flashover property rate of descent examination provided in this embodiment
Experiment device includes: signal controller 1, VFTO generating device 2 and weather simulator 3, in which: the signal controls
Device 1 include master control platform 4, pulse amplitude control channel 5 and trigger control module 6, the pulse amplitude control channel 5 respectively with institute
It states master control platform 4 and the trigger control module 6 is electrically connected；The VFTO generating device 2 includes high-tension shielding case 7 and VFTO pulse
Generating unit 8, the VFTO impulse generating unit 8 are arranged in the high-tension shielding case 7, the VFTO impulse generating unit 8
Signal input part be electrically connected with the trigger control module 6, the signal output end and VFTO of the VFTO impulse generating unit 8
The first end of pulse cable 9 is electrically connected, and the second end of the VFTO pulse cable 9 is connected with the climatic simulation device 3；Institute
Climatic simulation device 3 is stated to include climatic simulation case 10, insulator 11, testing stand 12, humidity sensor 13, wetness display unit 14, become
Depressor 15, adjusting pressuring knob 16, humidifier 17, spraying device 18 and video camera 19, the testing stand 12 are arranged in the weather
In simulation box 10, the insulator 11 is arranged on the testing stand 12, and the humidity sensor 13 and the transformer 15 are distinguished
It is connected with the insulator 11, the wetness display unit 14, the adjusting pressuring knob 16 and the humidifier 17 are arranged described
10 outside of climatic simulation case, the wetness display unit 14 are electrically connected with the humidity sensor 13, the adjusting pressuring knob 16 and institute
State the electrical connection of transformer 15, the spraying device 18 is arranged in the climatic simulation case 10, the spraying device 18 with it is described
Humidifier 17 is connected, and the video camera 19 is arranged in the climatic simulation case 10, the shooting mouth court of the video camera 19
To the insulator 11.By the way that insulator 11 is arranged in climatic simulation device 3 and simulates high condensation area surroundings, then lead to promise VFTO
Generating device 2 generates VFTO pulse signal effect in insulator 11, and after effect, the voltage adjusted on insulator 11 makes insulator 11
Flashover occurs for surface, obtains VFTO flashover property rate of descent, shoots insulator image in conjunction with video camera, obtains the shadow to insulator 11
It rings.
Referring to fig. 2, the utility model embodiment additionally provides a kind of high condensation area insulator VFTO flashover property rate of descent
Test method, which comprises
S101, checks whether the power automatic transfer switch in signal controller disconnects.
The charging time sequence setting button of supervisory control desk is arranged if the power automatic transfer switch disconnects in S102,
Charging time setting, starting charging triggering control button are carried out, the power automatic transfer switch closure after charging complete, is broken
Open the power automatic transfer switch.
S103 opens humidifier, sprays water mist to climatic simulation case by spraying device, is obtained by wetness display unit
Humidity in the case that humidity sensor in the climatic simulation case obtains.
S104, after the humidity value of the wetness display unit China reaches preset value, starting impulse triggers control button, control
It makes the VFTO generating device and generates VFTO pulse signal, by the VFTO pulse signal effect on insulator.
S105, after effect, operation adjusting pressuring knob adjusts transformer voltage, makes insulator surface that flashover occur, and obtains and dodges
Network voltage rate of descent.
Specifically, the grade of rated voltage U that insulator uses is chosen050% be used as starting point, i.e. Ut1=50%U0, and select
Take about Ut15% voltage spaces Δ U as pressurization step-length, i.e., application voltage Uti=[Ut1+ (i-1) Δ U] continue to survey
Examination records flashover voltage value U at this time until flashover appearance occurs in insulators=UtN, N is the space-number pressurizeed；Repeat with
Upper process n times, and by test result Us- n is saved.Finally, flashover voltage rate of descent τ comes after by calculating VFTO effect
Reflect its influence to insulator flashover property, the calculating formula of τ are as follows:
In formula, UsiWhen as i-th is tested, the insulator flashover voltage value tested.When the numerical value of τ is below 5%,
Show that the insulation performance of insulator is preferable, is not influenced by VFTO effect, and when the numerical value of τ is between 5%~15%, show porcelain
The insulation performance of set is declined, and when the numerical value of τ is greater than 15%, shows that the decreasing insulating of insulator is more obvious, Ying Yin
It rises and pays attention to.
S106 during testing insulator surface generation flashover, while controlling the real-time pictures of video camera shooting insulator, and
It repeats acquisition multiple groups shooting picture and analyzes high condensation area VFTO jointly in conjunction with flashover voltage rate of descent and multiple groups shooting picture
Insulator flashover is influenced.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.And the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
Above-described the utility model embodiment does not constitute the restriction to scope of protection of the utility model.
Claims (9)
1. a kind of high condensation area insulator VFTO flashover property rate of descent experimental rig characterized by comprising signal is controlled
Device (1), VFTO generating device (2) and weather simulator (3) processed, in which:
The signal output end of the signal controller (1) is connected with the input terminal of the VFTO generating device (2), described
The output end of VFTO generating device (2) is connected with the climatic simulation device (3), and the VFTO generating device (2) is for producing
Raw high-voltage pulse is simultaneously loaded on climatic simulation device (3)；
The signal controller (1) includes master control platform (4), pulse amplitude control channel (5) and trigger control module (6),
The pulse amplitude control channel (5) is electrically connected with the master control platform (4) and the trigger control module (6) respectively；
The VFTO generating device (2) includes high-tension shielding case (7) and VFTO impulse generating unit (8), the VFTO pulse hair
Raw unit (8) setting in the high-tension shielding case (7), the signal input part of the VFTO impulse generating unit (8) with it is described
Trigger control module (6) electrical connection, signal output end and VFTO pulse cable (9) of the VFTO impulse generating unit (8)
First end electrical connection, the second end of the VFTO pulse cable (9) are connected with the climatic simulation device (3)；
The climatic simulation device (3) include climatic simulation case (10), insulator (11), testing stand (12), humidity sensor (13),
Wetness display unit (14), transformer (15), adjusting pressuring knob (16), humidifier (17), spraying device (18) and video camera (19),
In the climatic simulation case (10), the insulator (11) is arranged on the testing stand (12) for testing stand (12) setting,
The humidity sensor (13) and the transformer (15) are connected with the insulator (11) respectively, the wetness display unit
(14), the adjusting pressuring knob (16) and the humidifier (17) setting are on the outside of the climatic simulation case (10), the humidity
Display (14) is electrically connected with the humidity sensor (13), and the adjusting pressuring knob (16) is electrically connected with the transformer (15),
Spraying device (18) setting is in the climatic simulation case (10), the spraying device (18) and the humidifier (17)
It is connected, the video camera (19) setting is in the climatic simulation case (10), and the shooting mouth of the video camera (19) is towards institute
State insulator (11).
2. high condensation area insulator VFTO flashover property rate of descent experimental rig according to claim 1, which is characterized in that
The VFTO impulse generating unit (8) includes: high voltage silicon rectifier stack (20), first capacitor device (21), the second capacitor (22), third electricity
Container (23), first resistor device (24), second resistor (25), the first charging resistor (26), the second charging resistor (27),
First spark ball gap (28), the second spark ball gap (29) and harmonic module (30), the first end of the high voltage silicon rectifier stack (20) and institute
Trigger control module (6) is stated to be connected, the second end of the high voltage silicon rectifier stack (20) respectively with the first capacitor device (21)
One end, the first resistor device (24) first end be connected with the first end of the first spark ball gap (28), described first
The second end of capacitor (21) is connected with the first end of first charging resistor (26), the first resistor device (24)
Second end respectively with the first end of the second resistor (25), the first end of the second capacitor (22), the second spark ball gap
(29) first end is connected, the second end of the first spark ball gap (28) respectively with first charging resistor (26)
Second end, the second end of second capacitor (22) are connected with the first end of second charging resistor (27), described
The second end of second resistor (25) respectively with the first end of the third capacitor (23) and the harmonic module (30)
One end is connected, the second end of second charging resistor (27) respectively with the second end of the second spark ball gap (29) with
The second end of the third capacitor (23) is connected.
3. high condensation area insulator VFTO flashover property rate of descent experimental rig according to claim 2, which is characterized in that
One steepness gap (31) is set on the outside of the high-tension shielding case (7), and the steepness gap (31) is separately connected the harmonic module
(30) first end of second end and the VFTO pulse cable (9).
4. high condensation area insulator VFTO flashover property rate of descent experimental rig according to claim 3, which is characterized in that
High pressure adapter (32) and high-tension cable are provided between the VFTO pulse cable (9) and the climatic simulation device (3)
(33), the high pressure adapter (32) is separately connected the first end and the high-tension cable (33) of the VFTO pulse cable (9)
First end, the second end of the high-tension cable (33) is connected with the insulator (11).
5. high condensation area insulator VFTO flashover property rate of descent experimental rig according to claim 4, which is characterized in that
The first wall bushing (34), the second wall bushing (35) and third wall bushing (36) are provided on the high-tension shielding case (7),
First wall bushing (34) both ends first end phase with the trigger control module (6) and the high voltage silicon rectifier stack (20) respectively
Connection, the first end of second wall bushing (35) are separately connected the second end and described first of the first capacitor device (21)
The of the first end of charging resistor (26), the second end of the first capacitor device (21) and first charging resistor (26)
One end is grounded by the second end of second wall bushing (35), and the both ends of the third wall bushing (36) are separately connected institute
State second end and the steepness gap (31) of harmonic module (30).
6. high condensation area insulator VFTO flashover property rate of descent experimental rig according to claim 1, which is characterized in that
The master control platform (4) include Pulse-trigger control button (37), charging triggering control button (38), emergency stop button (39) and
Button (40) are arranged in charging time sequence, the Pulse-trigger control button (37), charging triggering control button (38), urgent system
Dynamic button (39) and charging time sequence setting button (40) are electrically connected with the processor of the master control platform (4) respectively.
7. high condensation area insulator VFTO flashover property rate of descent experimental rig according to claim 5, which is characterized in that
The trigger control module (6) includes switch status display device (41) and power automatic transfer switch (42), the switch state
Display (41) and the power automatic transfer switch (42) electrical connection.
8. high condensation area insulator VFTO flashover property rate of descent experimental rig according to claim 7, which is characterized in that
The first insulation barrier (43) are provided between the steepness gap (31) and the third wall bushing (36), the third is through walls
Casing (36) one end is fixed on first insulation barrier (43), between the VFTO pulse cable (9) and the steepness
It is provided between gap (31) the second insulation barrier (44), the first end of the VFTO pulse cable (9) and second insulation stop
Plate (44) is connected.
9. high condensation area insulator VFTO flashover property rate of descent experimental rig according to claim 4, which is characterized in that
The 4th wall bushing (45) is provided on the climatic simulation case (10), the high-tension cable (33) passes through the 4th set through walls
Pipe (45) is connected with the insulator (11).
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| CN201821383249.5U CN208705434U (en) | 2018-08-27 | 2018-08-27 | High condensation area insulator VFTO flashover property rate of descent experimental rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957265A (en) * | 2018-08-27 | 2018-12-07 | 云南电网有限责任公司电力科学研究院 | High condensation area insulator VFTO flashover property rate of descent experimental rig and method |
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2018
- 2018-08-27 CN CN201821383249.5U patent/CN208705434U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957265A (en) * | 2018-08-27 | 2018-12-07 | 云南电网有限责任公司电力科学研究院 | High condensation area insulator VFTO flashover property rate of descent experimental rig and method |
| CN108957265B (en) * | 2018-08-27 | 2024-04-09 | 云南电网有限责任公司电力科学研究院 | Device and method for testing VFTO flashover characteristic decline rate of porcelain bushing in high condensation area |
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