CN209215524U - SF6 gas breakdown characteristic test system under electric appliance real impact voltage waveform - Google Patents
SF6 gas breakdown characteristic test system under electric appliance real impact voltage waveform Download PDFInfo
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- CN209215524U CN209215524U CN201821183518.3U CN201821183518U CN209215524U CN 209215524 U CN209215524 U CN 209215524U CN 201821183518 U CN201821183518 U CN 201821183518U CN 209215524 U CN209215524 U CN 209215524U
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- 238000012360 testing method Methods 0.000 title claims abstract description 62
- 230000015556 catabolic process Effects 0.000 title claims abstract description 33
- 239000007789 gas Substances 0.000 claims abstract description 59
- 230000006698 induction Effects 0.000 claims abstract description 15
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 238000004088 simulation Methods 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform of the utility model, it is characterized in that, the system comprises impulse voltage generator, high-voltage conducting wires, casing, GIS shell, high-tension resistive, high voltage induction, direct-to-ground capacitance, the divider being built in inside GIS cavity, test electrode and build-out resistors, using the distribution parameter of lumped parameter simulation combination of gases electric appliance, using the distribution parameter of lumped parameter simulation physical device inside subject combination of gases electric appliance.The pilot system can be used for the breakdown characteristics that learning gas combined electrical apparatus real impact voltage waveform acts on lower SF6 gas.The utility model can be used to study SF6 gas breakdown characteristic of the surge voltage in combination of gases electric appliance when different location under actual waveform using the distribution parameter of lumped parameter simulation combination of gases electric appliance.The utility model replaces distribution parameter using lumped parameter, then lesser test cavity can be used to simulate actual large scale equipment.
Description
Technical field
The utility model relates to electric equipment test fields, more particularly to a kind of combination of gases electric appliance real impact voltage
SF6 gas breakdown characteristic test system under waveform.
Background technique
Combination of gases electric appliance (Gas Insulated Switchgear, GIS) is the key equipment in power grid, is had
The feature that maintenance is small, operational reliability is high.GIS device other than being subjected to power-frequency voltage, can also meet in positive row operational process
By lightning impulse and operating impulse voltage.Lightning impulse voltage is and the breaker actuation caused by nature thunderstorm weather
Deng can then generate operating impulse voltage.The characteristics of lightning impulse and switching impulse is that waveform rises rapidly, and is then gradually reduced,
With voltage magnitude height, action time short feature.Since harm of the surge voltage to equipment is larger, at present for GIS
It has been a routine test project that equipment, which carries out live impulse withstand voltage test, and achieves preferable effect.But at present to GIS
Equipment carries out when impulse withstand voltage test being the determination for carrying out waveform according to parameter based on standard, and lightning impulse is 1.2/50
μ s, switching impulse are 250/2500 μ s, but actually since GIS device volume is larger, bus length is 700 sometimes
Rice, the influence of the intracorporal guide rod resistance of GIS chamber, inductance and direct-to-ground capacitance causes surge voltage when propagating along GIS device at this time
It can be distorted, cause apparatus insulated receiving is the waveform after being distorted.But either design or manufacture GIS device
When, dielectric level is carried out according to reference waveform, and which results in the practical receivings of SF6 gas used by GIS insulation
Waveform and standard given in go out waveform have larger difference, therefore grasp GIS device in real impact voltage waveform effect
The breakdown characteristics of lower SF6 gas have weight for GIS insulating Design, accident analysis and the basic insulation characteristic for grasping GIS insulation
Want meaning.
Utility model content
The utility model is in order to solve above-mentioned the deficiencies in the prior art, for GIS device insulation SF6 gas used in reality
Breakdown characteristics research under the Impulse Voltage of border, provides SF6 gas under a kind of combination of gases electric appliance real impact voltage waveform
Body breakdown characteristics pilot system.
The following technical solution is employed for the utility model:
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform of the utility model, which is characterized in that
The system comprises impulse voltage generator, high-voltage conducting wires, casing, GIS shell, high-tension resistive, high voltage induction, direct-to-ground capacitance,
Divider, test electrode and the build-out resistor being built in inside GIS cavity utilize point of lumped parameter simulation combination of gases electric appliance
Cloth parameter, using the distribution parameter of lumped parameter simulation physical device inside subject combination of gases electric appliance.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that the punching
It hits voltage generator to be connected with high-voltage conducting wires, by casing by high input voltage GIS cavity.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that the height
Piezoresistance, high voltage induction, direct-to-ground capacitance, divider, test electrode and build-out resistor are placed in GIS interior of shell, from left to right
It is sequentially arranged.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that the height
Piezoresistance, high voltage induction series connection.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that described right
Ground capacitor and divider are in parallel, a termination high-voltage conducting wires, a termination GIS shell.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that the height
Piezoresistance, high voltage induction and direct-to-ground capacitance Parameter adjustable.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that the examination
Electrical verification pole is fixed on high-voltage conducting wires.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that described
It is located at end, a termination high-voltage conducting wires, a termination GIS shell with resistance.
The advantages of the utility model and effect are:
The utility model adjusts impact electricity using the distribution parameter of lumped parameter simulation combination of gases electric appliance in which can be convenient
Corrugating parameter, the practical receiving voltage waveform of Simulated GlS is consistent, studies SF6 gas breakdown characteristic under real impact voltage waveform.
Grasp the breakdown characteristics that real impact voltage waveform in GIS device acts on lower SF6 gas, for GIS insulating Design,
Accident analysis and the basic insulation characteristic for grasping GIS insulation are of great significance.
Detailed description of the invention
Fig. 1 is the application schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with specific embodiment:
Embodiment 1
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform of the utility model, which is characterized in that
The system comprises impulse voltage generator 1, high-voltage conducting wires 2, casing 3, GIS shell 4, high-tension resistive 5, high voltage inductions 6, over the ground
Capacitor 7, the divider 8 being built in inside GIS cavity, test electrode 9 and build-out resistor 10 simulate gas group using lumped parameter
The distribution parameter for closing electric appliance, using the distribution parameter of lumped parameter simulation physical device inside subject combination of gases electric appliance.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that the height
The lumped parameters such as piezoresistance, high voltage induction and direct-to-ground capacitance are adjustable, the equipment to simulate different length and different voltages grade.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that will be described
Divider is placed on subject inside cavity, to measure actually applied surge voltage on the electrode.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that using punching
Driving voltage of the voltage generator as equipment is hit, which can produce lightning impulse voltage and operating impulse voltage, impact
Voltage is introduced on the high pressure guide rod in test cavity by bushing, and test cavity is using consistent with practical GIS device material
Aluminum metal shell, simulate practical GIS device structure, test cavity is grounded, and fills SF6 gas, gas atmosphere in test cavity body
It can arbitrarily adjust.
SF6 gas breakdown characteristic test system under the electric appliance real impact voltage waveform, which is characterized in that in high pressure
It connects on guide rod a high-tension resistive and a high voltage induction, over the ground a high-voltage capacitance in parallel, to simulate a segment length
The resistance and inductance and direct-to-ground capacitance of practical GIS device high pressure guide rod, specific value can be according to the Structure Calculations of physical device
Obtain, different numerical value represents different guide rod length, be in series with build-out resistor in the tail portion of guide rod, the value of build-out resistor with
The value of test cavity bulk wave impedance is equal, with the catadioptric to avoid wave.
The purposes of SF6 gas breakdown characteristic test system, described under the electric appliance real impact voltage waveform of the utility model
SF6 gas breakdown characteristic test system can be used for learning gas combined electrical apparatus real impact electricity under electric appliance real impact voltage waveform
Corrugating acts on the breakdown characteristics of lower SF6 gas, and the utility model is joined using the distribution of lumped parameter simulation combination of gases electric appliance
Number, can be used to study SF6 gas breakdown characteristic of the surge voltage in combination of gases electric appliance when different location under actual waveform.
The utility model uses driving voltage of the impulse voltage generator as equipment, which can produce lightning impulse
Voltage and operating impulse voltage.
Surge voltage is introduced on the high pressure guide rod in test cavity by bushing, and test cavity uses and practical GIS
The consistent aluminum metal shell of equipment and materials simulates practical GIS device structure, test cavity ground connection.SF6 gas is filled in test cavity body
Body, gas atmosphere can be adjusted arbitrarily.
Practical GIS uses coaxial configuration, and resistance and inductance are mainly high pressure guide rod resistance and inductance, and capacitor is then high pressure
Conduit direct-to-ground capacitance, when GIS device voltage class is smaller, these parameters are little to waveform influence when scale is also smaller, but right
Larger in voltage levels equipment, these parameters can have an impact waveform, lead to wave distortion, if using with
The consistent test cavity of physical device structure can then make test cavity excessively huge, therefore the utility model utilizes lumped parameter
Instead of distribution parameter, then lesser test cavity can be used to simulate actual large scale equipment.
It connects on high pressure guide rod a high-tension resistive and a high voltage induction, over the ground a high-voltage capacitance in parallel, to
The resistance and inductance and direct-to-ground capacitance, specific value for simulating the practical GIS device high pressure guide rod of a segment length can be according to reality
The Structure Calculation of equipment obtains, and different numerical value represents different guide rod length.
The high-pressure section of test electrode is connected with high pressure guide rod, test electrode bears surge voltage herein.Using interior
The capacitive divider set in the cavity obtains the real impact voltage waveform acted on test electrode.
High pressure guide rod tail portion series matching resistor is connected with shell.The resistance value and high pressure guide rod wave impedance value one of build-out resistor
It causes, avoids wave distortion caused by the catadioptric of wave.
Fig. 1 is the application schematic diagram of the utility model, in which: impulse voltage generator 1 can produce lightning impulse and operation
Surge voltage is introduced GIS by bushing and tested on the high pressure guide rod of cavity by impact.It is adjustable to test cavity gassy
SF6 gas.High pressure guide rod one high-tension resistive of series connection and a high voltage induction, high-voltage capacitance simulation in parallel is practical over the ground
The distribution parameter of inside cavity.The high-pressure section of test electrode is connected with high pressure guide rod, test electrode bears high pressure herein and leads
The surge voltage of bar.High-tension resistive can be adjusted in actual use as needed, the specific value of inductance and direct-to-ground capacitance is simulated
The GIS device of different length.Build-out resistor, the value of build-out resistor and the value of test cavity bulk wave impedance are in series in the tail portion of guide rod
It is equal, with the catadioptric to avoid wave.
In actual tests, according to the needs of test, each competition can be adjusted flexibly, such as take: impulse voltage generator ginseng
Number can be chosen as needed, and parameters value, the spacing of test electrode and shape of lumped parameter etc. can be as needed
It is chosen.
The preferable specific embodiment of the above, only the utility model, the protection scope of the utility model are not limited to
This, anyone skilled in the art can become apparent in the technical scope that the utility model discloses
Technical solution simple change or equivalence replacement each fall in the protection scope of the utility model.
Claims (5)
1. SF6 gas breakdown characteristic test system under a kind of electric appliance real impact voltage waveform, which is characterized in that the system packet
Include impulse voltage generator (1), high-voltage conducting wires (2), casing (3), GIS shell (4), high-tension resistive (5), high voltage induction (6), right
Ground capacitor (7), the divider (8) being built in inside GIS cavity, test electrode (9) and build-out resistor (10), utilize lumped parameter
The distribution parameter for simulating combination of gases electric appliance, using point of lumped parameter simulation physical device inside subject combination of gases electric appliance
Cloth parameter；The impulse voltage generator (1) is connected with high-voltage conducting wires (2), by casing (3) by high input voltage GIS cavity；Institute
High-tension resistive (5), high voltage induction (6), direct-to-ground capacitance (7), divider (8), test electrode (9) and build-out resistor (10) is stated to set
It is internal in GIS shell (4), it is sequentially arranged from left to right；The high-tension resistive (5), high voltage induction (6) series connection；It is described electric over the ground
Hold (7) and divider (8) is in parallel, termination high-voltage conducting wires (2), termination GIS shell (4)；The test electrode (9) is fixed on
On high-voltage conducting wires (2)；The build-out resistor (10) is located at end, termination high-voltage conducting wires (2), termination GIS shell (4).
2. SF6 gas breakdown characteristic test system under a kind of electric appliance real impact voltage waveform according to claim 1,
It is characterized in that, the lumped parameter of the high-tension resistive, high voltage induction and direct-to-ground capacitance is adjustable, to simulate different length and difference
The equipment of voltage class.
3. SF6 gas breakdown characteristic test system under a kind of electric appliance real impact voltage waveform according to claim 1,
It is characterized in that, the divider is placed on subject inside cavity, to measure actually applied surge voltage on the electrode.
4. SF6 gas breakdown characteristic test system under a kind of electric appliance real impact voltage waveform according to claim 1,
It is characterized in that, the driving voltage using impulse voltage generator as equipment, the generator can produce lightning impulse voltage and behaviour
Make surge voltage, surge voltage is introduced on the high pressure guide rod in test cavity by bushing, and test cavity uses and reality
The consistent aluminum metal shell of GIS device material, simulates practical GIS device structure, and test cavity is grounded, fills in test cavity body
SF6 gas, gas atmosphere can be adjusted arbitrarily.
5. SF6 gas breakdown characteristic test system under a kind of electric appliance real impact voltage waveform according to claim 4,
It is characterized in that, connect on high pressure guide rod a high-tension resistive and a high voltage induction, over the ground a high-voltage capacitance in parallel, to
The resistance and inductance and direct-to-ground capacitance, specific value for simulating the practical GIS device high pressure guide rod of a segment length can be according to reality
The Structure Calculation of equipment obtains, and different numerical value represents different guide rod length, is in series with build-out resistor in the tail portion of guide rod,
The value of build-out resistor is equal with the value of test cavity bulk wave impedance, with the catadioptric to avoid wave.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821183518.3U CN209215524U (en) | 2018-07-25 | 2018-07-25 | SF6 gas breakdown characteristic test system under electric appliance real impact voltage waveform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821183518.3U CN209215524U (en) | 2018-07-25 | 2018-07-25 | SF6 gas breakdown characteristic test system under electric appliance real impact voltage waveform |
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| CN209215524U true CN209215524U (en) | 2019-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273139A (en) * | 2020-02-24 | 2020-06-12 | 云南电网有限责任公司电力科学研究院 | Testing cavity for thermal state gas breakdown characteristics |
-
2018
- 2018-07-25 CN CN201821183518.3U patent/CN209215524U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273139A (en) * | 2020-02-24 | 2020-06-12 | 云南电网有限责任公司电力科学研究院 | Testing cavity for thermal state gas breakdown characteristics |
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