CN110133458B - Semi-automatic discharge test device and method applied to high-voltage test - Google Patents
Semi-automatic discharge test device and method applied to high-voltage test Download PDFInfo
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- CN110133458B CN110133458B CN201910439412.8A CN201910439412A CN110133458B CN 110133458 B CN110133458 B CN 110133458B CN 201910439412 A CN201910439412 A CN 201910439412A CN 110133458 B CN110133458 B CN 110133458B
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- 239000002184 metal Substances 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 239000012212 insulator Substances 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
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- 230000005540 biological transmission Effects 0.000 abstract description 2
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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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
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1245—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
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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
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
Abstract
A semi-automatic discharge test device and method applied to a high-voltage test belong to the technical field of high-voltage transmission lines and insulation. The semi-automatic discharging test device comprises a high-voltage test device and a discharging device, wherein the discharging device comprises an insulating base, a sliding groove is formed in the upper portion of the insulating base, the sliding groove is connected with the bottom end of the insulating support in a sliding mode, the top end of the insulating support is connected with a metal conducting rod through an insulating adjustable support, one end of the metal conducting rod is grounded, two ends of the insulating base in the length direction are respectively provided with a motor, the output end of the motor is fixedly connected with an insulating rotary table, the insulating rotary table is connected with an insulating chain in a matched mode, two ends of the insulating chain are respectively connected with the other ends of adjacent insulating support rods, and the motor is connected with a controller. The semi-automatic discharge test device and method applied to the high-voltage test replace manpower to discharge the tested device, reduce the manpower waste and improve the reliability and safety of the test process.
Description
Technical Field
The invention relates to the technical field of high-voltage transmission lines and insulation, in particular to a semi-automatic discharge test device and method applied to a high-voltage test.
Background
When the high-voltage basin-type insulator surface flashover test is carried out, after flashover occurs, the applied power supply voltage is reduced to zero, but a large amount of residual charges still remain on the test device, and if discharge is not carried out, the residual charges not only can cause danger to close test personnel, but also can influence the next test result. The existing method for solving the residual charge is that after the test is finished, a tester holds the insulating end of the grounded conducting rod, touches the metal end of the conducting rod with an external conducting wire of the device, and discharges the conducting rod.
Disclosure of Invention
In order to solve the technical problems that the high-voltage basin-type insulator surface flashover test process is complex, manual discharge is needed, dangers exist and the like in the prior art, the invention provides a semi-automatic discharge test device and a semi-automatic discharge test method applied to the high-voltage test, which replace manpower to discharge a device after the test, reduce the manpower waste and improve the reliability and safety of the test process.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the semi-automatic discharge testing device comprises a high-voltage testing device and a discharge device, wherein the discharge device comprises an insulation base, a chute is arranged above the insulation base, the chute is in sliding connection with the bottom end of an insulation support, the top end of the insulation support is connected with a metal conducting rod through an insulated adjustable support, one end of the metal conducting rod is grounded, insulation support rods are symmetrically arranged on two sides of the lower portion of the insulation support, one end of each insulation support rod is connected with the insulation support, and the other end of each insulation support rod is in sliding connection with the chute;
the two ends of the insulating base along the length direction are respectively provided with a motor, the output end of the motor is fixedly connected with the insulating turntable, the insulating turntable is connected with the insulating chain in a matched manner, the insulating chain is arranged along the circumferential direction of the insulating base, and the two ends of the insulating chain are respectively connected with the other ends of adjacent insulating support rods;
the motor is connected with a controller, and the controller controls the rotation of the motor;
the bottom end of the insulating support and the other end of the insulating support rod are respectively provided with a round wheel, the round wheels are made of insulating materials, and the round wheels slide in the sliding grooves; the insulating turntable is in a ten-hexagon star shape.
The high-voltage test device comprises a test tank body, a high-voltage sleeve and a direct-current test system, wherein a basin-type insulator is arranged in the test tank body, the basin-type insulator divides the test tank body into a first air chamber and a second air chamber, the first air chamber and the second air chamber are respectively provided with an inflation valve, the upper part of the first air chamber is provided with the high-voltage sleeve, one end of the high-voltage sleeve, which is far away from the first air chamber, is connected with the direct-current test system through a wire, a first center guide rod is arranged in the high-voltage sleeve, one end of the first center guide rod, which is close to the first air chamber, extends into the first air chamber and is connected with the second center guide rod, the second center guide rod is connected with the basin-type insulator, and the test tank body is also provided with an observation window which is positioned in the second air chamber.
The lead is a bare copper lead with aluminum foil sleeved outside.
The length of the insulating base is 380-420 cm, and the width of the insulating base is 18-22 cm.
The test method of the test device applied to the semiautomatic discharge in the high-voltage test comprises the following steps:
firstly, preparing a test, namely checking whether all parts of a semi-automatic discharge test device applied to a high-voltage test are good, checking the air tightness of a test tank body, checking whether the test tank body is grounded and checking whether a metal conducting rod is grounded;
step two, connecting an inflation valve with a vacuumizing and inflating device, vacuumizing the test tank body, inflating insulating gas to a set pressure, and closing the inflation valve;
thirdly, placing a discharge device to enable the metal conducting rod to be located at one end, far away from the test tank, of the insulating base;
starting a direct current test system, pressurizing a high-voltage test device, starting to reduce the voltage until the voltage drop is zero when flashover discharge occurs on the edge surface of the basin-type insulator, and closing the direct current test system;
step five, controlling the motor to rotate through a controller, wherein the motor drives an insulating chain to move through an insulating rotary table, the insulating chain drives an insulating support to move towards a direction close to a high-voltage test device through an insulating support rod, and after a metal conducting rod is contacted with an aluminum foil outside a conducting wire, the motor stops rotating, and the metal conducting rod stands for 3-5 minutes; the motor is controlled to reversely rotate through the controller, the motor drives the insulating chain to move through the insulating rotary table, the insulating chain drives the insulating support to move in a direction away from the high-voltage test device through the insulating support rod until the metal conducting rod is restored to the original position, and the motor stops rotating to finish discharging;
and step six, recording the flashover voltage value of the test.
The invention has the beneficial effects that:
according to the discharging device disclosed by the invention, the motor is controlled to rotate through the controller, and the motor drives the insulating turntable, the insulating chain, the insulating support rod, the insulating support and the metal conducting rod to move in sequence, so that when the metal conducting rod is contacted with the aluminum foil outside the conducting wire, the discharging device discharges the high-voltage testing device after a high-voltage test, the manpower waste in the test is reduced, and the safety and reliability of the test are improved. The high-voltage test device is formed by refitting an actual GIS air chamber, has practical significance, can test basin-type insulators of various types, and can measure the flashover voltage values of the basin-type insulators under different gases and the flashover voltage values of the basin-type insulators under different gases.
Drawings
FIG. 1 is a schematic diagram of a discharge device according to the present invention;
fig. 2 is a schematic structural diagram of the high-voltage test device provided by the invention.
Wherein,
the device comprises a first air chamber, a second air chamber, a 3-direct current test system, a 4-protection resistor, a 5-resistance-capacitance voltage divider, a 6-basin-type insulator, a 7-high-voltage sleeve, an 8-observation window, a 9-inflation valve, a 10-wire, a 11-motor, a 13-insulation base, a 14-insulation support, a 15-insulation chain, a 16-insulation turntable and a 17-metal conducting rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "mounted," "configured with," "connected," and the like, are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In order to solve the problems in the prior art, as shown in fig. 1 to 2, the invention provides a semi-automatic discharge test device applied to a high-voltage test, which comprises a high-voltage test device and a discharge device, wherein the high-voltage test device and the discharge device are matched for use.
As shown in fig. 1, the discharging device comprises an insulation base 13, the length of the insulation base 13 is 380-420 cm, the width of the insulation base is 18-22 cm, a sliding groove is arranged above the insulation base 13, the sliding groove is in sliding connection with the bottom end of an insulation support 14, the top end of the insulation support 14 is connected with a metal conducting rod 17 through an insulation adjustable support, one end of the metal conducting rod 17 is grounded, insulation support rods are symmetrically arranged on two sides of the lower portion of the insulation support 14, one end of each insulation support rod is connected with the insulation support 14, the other end of each insulation support rod is in sliding connection with the sliding groove, round wheels are respectively arranged at the bottom end of the insulation support 14 and the other end of each insulation support rod, the round wheels are made of insulation materials, the round wheels slide in the sliding groove, two ends of the insulation base 13 in the length direction are respectively provided with a motor 11, the output end of the motor 11 is fixedly connected with an insulation rotary disc 16, the insulation rotary disc 16 is in a ten-hexagon shape, the diameter of the insulation rotary disc 16 is selected according to practical test conditions, the insulation rotary disc 16 is connected with an insulation chain 15 in a matched mode, the insulation chain 15 is arranged along the circumference of the insulation support 13, two ends of the insulation chain 15 are respectively connected with the other ends of the adjacent insulation support rods, and the two ends are respectively connected with the other ends of the insulation support rods, which are respectively, and the controller 11 is connected with a controller. In this embodiment, the insulating support 14 is vertically arranged, two insulating support rods symmetrically arranged on two sides of the lower portion of the insulating support 14 are used for supporting the insulating support 14, the insulating support 14 is guaranteed to be perpendicular to the insulating base 13, each of two ends of the insulating base 13 along the length direction is provided with a motor 11, the output end of each motor 11 is fixedly connected with the insulating rotary table 16, the insulating chain 15 is matched with the two insulating rotary tables 16, and two ends of the insulating chain 15 are respectively connected with the other ends of the adjacent insulating support rods and used for driving the insulating support 14 to slide along the sliding grooves. The metal conducting rod 17 is fixed on the top end of the insulating support 14, the insulating base 13, the insulating rotary table 16 and the insulating chain 15 are made of insulating materials, the types of the two motors 11 are 12N/m servo stepping motors, and the controller adopts a 51 single-chip microcomputer and programs through C language to control the rotation of the motors 11.
As shown in fig. 2, the high-voltage test device comprises a test tank body, a high-voltage sleeve 7 and a direct-current test system 3, wherein a basin-type insulator 6 is arranged in the test tank body, the basin-type insulator 6 divides the test tank body into a first air chamber 1 and a second air chamber 2, the first air chamber 1 and the second air chamber 2 are respectively provided with an inflation valve 9, the upper part of the first air chamber 1 is provided with the high-voltage sleeve 7, one end of the high-voltage sleeve 7, which is far away from the first air chamber 1, is connected with the direct-current test system 3 through a lead 10, the direct-current test system 3 adopts the prior art, the model of the direct-current test system 3 is a +/-1200 kV/50mA direct-current voltage generator, the rated current of the direct-current test system 3 is 50mA, the lead 10 is a bare copper lead with an aluminum foil sleeved outside, the device is used for improving an external electric field of a wire 10 and reducing the discharge phenomenon of air, a metal conducting rod 17 is in contact with an aluminum foil outside the wire 10 for discharging when in discharge work, the wire 10 is also connected with a protection resistor 4 and a resistor-capacitor voltage divider 5, the total resistance value of the protection resistor 4 is 70MΩ, the protection resistor is formed by connecting 14 non-inductive resistors of 20MΩ/300W R180 in parallel and then in series, the protection resistor-capacitor voltage divider 5 is used for limiting loop current to prevent other devices in a loop from being damaged, the resistance-capacitor voltage divider 5 consists of a high-voltage part and a low-voltage instrument, the voltage divider voltage dividing ratio of the high-voltage part is adjustable, and a digital storage oscilloscope of the low-voltage part is used for collecting voltage waveforms when a test article is discharged and determining flashover and breakdown voltage. The high-voltage sleeve 7 is internally provided with a first central guide rod, one end of the first central guide rod, which is close to the first air chamber 1, extends into the first air chamber 1 and is connected with a second central guide rod, the second central guide rod is connected with the basin-type insulator 6, the test tank body is also provided with an observation window 8, and the observation window 8 is positioned in the second air chamber 2. In this embodiment, the test tank body level sets up, the internal level of test tank is provided with the second center guide arm, high-pressure sleeve 7 vertical setting, high-pressure sleeve 7 is made by the silicone rubber material, high-pressure conductor passes through, play support and insulating effect, vertically be provided with first center guide arm in the high-pressure sleeve 7, the test tank body is equipped with the metal end cover, the metal end cover that is located first air chamber 1 and second air chamber 2 all is equipped with inflation valve 9, inflation valve 9 is connected with evacuating aerating device when bleeding and inflating, be used for evacuating and inflating, inflation valve 9 includes spheroid and disk seat, inflation valve 9 material is the stainless steel, when fully opening or fully closing, the sealed face and the medium isolation of spheroid and disk seat, can not cause the erosion of valve sealed face when the medium passes through, and application scope is wide moreover, the latus rectum is from little to several millimeters, big to several meters, from high vacuum to high pressure all can be applied. An observation window 8 is reserved on the test tank body of the second air chamber 2 and is used for observing the occurrence of the flashover phenomenon. In the test, the air pressure of the first air chamber 1 is higher than that of the second air chamber 2, so that flashover is ensured to occur on the outer surface of the basin-type insulator 6.
The test method of the test device applied to the semiautomatic discharge in the high-voltage test comprises the following steps:
step one, test preparation, checking whether each part of a test device applied to semi-automatic discharge in a high-voltage test is intact, checking the air tightness of a test tank body, checking whether the test tank body is grounded and checking whether a metal conducting rod 17 is grounded;
step two, connecting an inflation valve 9 with a vacuumizing and inflating device, vacuumizing the test tank body, inflating insulating gas to a set pressure, and closing the inflation valve 9;
placing a discharge device to enable the metal conducting rod 17 to be located at one end, far away from the test tank body, of the insulating base 13;
step four, starting a direct current test system 3, pressurizing a high-voltage test device, starting to reduce the voltage until the voltage drop is zero when flashover discharge occurs on the edge surface of the basin-type insulator 6, and closing the direct current test system 3;
step five, controlling the motor 11 to rotate through a controller, driving the insulating chain 15 to move through the insulating turntable 16 by the motor 11, driving the insulating bracket 14 to move towards a direction close to the high-voltage test device through the insulating supporting rod by the insulating chain 15, stopping rotating the motor 11 after the metal conducting rod 17 is contacted with the aluminum foil outside the wire 10, and standing the metal conducting rod 17 for 3-5 minutes; the motor 11 is controlled to reversely rotate by the controller, the motor 11 drives the insulating chain 15 to move through the insulating rotary table 16, the insulating chain 15 drives the insulating support 14 to move far away from the high-voltage test device through the insulating support rod, and the motor 11 stops rotating until the metal conducting rod 17 is restored to the original position, so that discharging is completed;
and step six, recording the flashover voltage value of the test.
In this embodiment, in the fourth step, the dc test system 3 is started, the speed of pressurizing the high voltage test device is 1kV for one second, and when flashover discharge occurs along the surface of the basin-type insulator 6, the voltage is reduced until the voltage is zero, where the speed of reducing the voltage is 10kV for one second. The flashover voltage value in step six can be observed on the dc test system 3.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The semi-automatic discharge test device is characterized by comprising a high-voltage test device and a discharge device, wherein the discharge device comprises an insulation base, a chute is arranged above the insulation base, the chute is in sliding connection with the bottom end of an insulation support, the top end of the insulation support is connected with a metal conducting rod through an insulation adjustable support, one end of the metal conducting rod is grounded, insulation support rods are symmetrically arranged on two sides of the lower part of the insulation support, one end of each insulation support rod is connected with the insulation support, and the other end of each insulation support rod is in sliding connection with the chute;
the two ends of the insulating base along the length direction are respectively provided with a motor, the output end of the motor is fixedly connected with the insulating turntable, the insulating turntable is connected with the insulating chain in a matched manner, the insulating chain is arranged along the circumferential direction of the insulating base, and the two ends of the insulating chain are respectively connected with the other ends of adjacent insulating support rods;
the motor is connected with a controller, and the controller controls the rotation of the motor;
the bottom end of the insulating support and the other end of the insulating support rod are respectively provided with a round wheel, the round wheels are made of insulating materials, and the round wheels slide in the sliding grooves; the insulating turntable is in a ten-hexagon star shape.
2. The test device for the semiautomatic discharge in the high-voltage test according to claim 1, wherein the high-voltage test device comprises a test tank body, a high-voltage sleeve and a direct current test system, a basin-type insulator is arranged in the test tank body and divides the test tank body into a first air chamber and a second air chamber, the first air chamber and the second air chamber are respectively provided with an inflation valve, the upper part of the first air chamber is provided with the high-voltage sleeve, one end of the high-voltage sleeve, which is far away from the first air chamber, is connected with the direct current test system through a wire, a first center guide rod is arranged in the high-voltage sleeve, one end of the first center guide rod, which is close to the first air chamber, extends into the first air chamber and is connected with the second center guide rod, the second center guide rod is connected with the basin-type insulator, and the test tank body is further provided with an observation window, and the observation window is positioned in the second air chamber.
3. The test device for semi-automatic discharge in high voltage test according to claim 2, wherein the wire is a bare copper wire externally covered with aluminum foil.
4. The test device for semi-automatic discharge in high voltage test according to claim 1, wherein the insulating base has a length of 380-420 cm and a width of 18-22 cm.
5. A test method of a test device for semi-automatic discharge in a high voltage test, employing the test device for semi-automatic discharge in a high voltage test according to claim 1, characterized by comprising the steps of:
firstly, preparing a test, namely checking whether all parts of a semi-automatic discharge test device applied to a high-voltage test are good, checking the air tightness of a test tank body, checking whether the test tank body is grounded and checking whether a metal conducting rod is grounded;
step two, connecting an inflation valve with a vacuumizing and inflating device, vacuumizing the test tank body, inflating insulating gas to a set pressure, and closing the inflation valve;
thirdly, placing a discharge device to enable the metal conducting rod to be located at one end, far away from the test tank, of the insulating base;
starting a direct current test system, pressurizing a high-voltage test device, starting to reduce the voltage until the voltage drop is zero when flashover discharge occurs on the edge surface of the basin-type insulator, and closing the direct current test system;
step five, controlling the motor to rotate through a controller, wherein the motor drives an insulating chain to move through an insulating rotary table, the insulating chain drives an insulating support to move towards a direction close to a high-voltage test device through an insulating support rod, and after a metal conducting rod is contacted with an aluminum foil outside a conducting wire, the motor stops rotating, and the metal conducting rod stands for 3-5 minutes; the controller controls the motor to reversely rotate, the motor drives the insulating chain to move through the insulating rotary table, the insulating chain drives the insulating support to move in a direction away from the high-voltage test device through the insulating support rod until the metal conducting rod is restored to the original position, and the motor stops rotating to finish discharging;
and step six, recording the flashover voltage value of the test.
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| CN201910439412.8A CN110133458B (en) | 2019-05-24 | 2019-05-24 | Semi-automatic discharge test device and method applied to high-voltage test |
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| CN201910439412.8A CN110133458B (en) | 2019-05-24 | 2019-05-24 | Semi-automatic discharge test device and method applied to high-voltage test |
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| CN110133458B true CN110133458B (en) | 2024-02-06 |
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