CN113358962B - Experimental device for compact impulse voltage generator and voltage divider - Google Patents
Experimental device for compact impulse voltage generator and voltage divider Download PDFInfo
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- CN113358962B CN113358962B CN202110660339.4A CN202110660339A CN113358962B CN 113358962 B CN113358962 B CN 113358962B CN 202110660339 A CN202110660339 A CN 202110660339A CN 113358962 B CN113358962 B CN 113358962B
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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
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
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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
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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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
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
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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
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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Abstract
The invention discloses an experimental device of a compact impulse voltage generator and a voltage divider, which comprises: the device comprises a base, a voltage divider, a grading ring and an impulse voltage generator body; the impulse voltage generator body is fixed on the base and consists of a capacitor bracket, a supporting structure and a main capacitor; the voltage divider is fixed on a supporting structure and consists of a plurality of layers of insulation shielding capacitors connected end to end, and each insulation shielding capacitor consists of an insulation shielding barrel, a movable sleeve, a pulse capacitor, an end cover, conductive rubber and a beryllium copper reed. The invention can use the impulse voltage generator and the voltage divider as an integrated structure, thereby saving the space resource of a laboratory, improving the experimental efficiency and ensuring the safety of experimental personnel.
Description
Technical Field
The invention relates to the technical field of airplane lightning voltage experimental devices, in particular to an experimental device for a compact impulse voltage generator and a voltage divider.
Background
In the airplane lightning voltage experiment process, the impulse voltage generator is a device for generating waveforms required by airplane lightning protection identification experiments, and the voltage divider is a device for measuring the waveforms of the voltages generated by the impulse voltage generator. Because impulse voltage generator and voltage divider are high-voltage apparatus in the experimentation, need place in spacious place, and at impulse voltage generator discharge in-process, both can influence each other, cause impulse voltage generator produced wave form to be not conform to the standard, the measurement accuracy of voltage divider also can receive the influence simultaneously, consequently need guarantee impulse voltage generator and voltage divider certain distance apart when experimental, in order to save the laboratory space, the movable structure is generally made to the voltage divider, move the voltage divider to laboratory corner position after the experiment. But for very high surge voltage generators and voltage divider devices this approach has not been applicable. Along with the voltage of the impulse voltage generator is increased, the height of the voltage divider for measurement is increased, the difficulty of moving the base is increased, and the distance between the impulse voltage generator and the voltage divider is increased. This kind of condition has caused two equipment to occupy a large amount of laboratory spaces, and the removal degree of difficulty of voltage divider is high, and personnel's security when removing the voltage divider also can not easily obtain the guarantee.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the experimental device of the compact impulse voltage generator and the voltage divider, so that the impulse voltage generator and the voltage divider can be integrated, the laboratory space is saved, the time for moving the voltage divider is saved, the experimental efficiency is improved, the voltage divider does not need to be moved, and the safety of experimenters is guaranteed.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the experimental device of the compact impulse voltage generator and the voltage divider is characterized by comprising the following components: the device comprises a base, a voltage divider, a voltage-equalizing ring, an impulse voltage generator, a capacitor bracket, a supporting structure and a main capacitor;
the base is fixed on a foundation, and a square area is arranged on the base and used for mounting the impact generator; on the diagonal line of the square area of the base, a plurality of epoxy glass reinforced plastic pipes are symmetrically arranged towards the center direction along 4 top points of the square area respectively, the epoxy glass reinforced plastic pipes surrounded by a circle at the center of the square area form a small square area, a plurality of epoxy glass reinforced plastic pipes are symmetrically arranged at the middle position of the small square area to form a center mounting area, and the capacitor support is mounted at the top of the center mounting area; the capacitor bracket is provided with the main capacitor;
a matched epoxy glass fiber reinforced plastic pipe is arranged on the outer side of the central mounting area and on the inner side of the small square area, two epoxy glass fiber reinforced plastic pipes adjacent to the epoxy glass fiber reinforced plastic pipe and the matched epoxy glass fiber reinforced plastic pipe on the central mounting area jointly form a mounting subarea, and the voltage divider is mounted on the mounting subarea; all the epoxy glass reinforced plastic pipes form a first layer of support structure on the base;
forming N layers of supporting structures by using the epoxy glass reinforced plastic pipes with the same number and positions as the first layer of supporting structures, and connecting the epoxy glass reinforced plastic pipes among the layers end to form an integral supporting structure of the experimental device; the grading ring is fixed at the top of the integral supporting structure;
each layer of the integral supporting structure is provided with a main capacitor, the main capacitors of all layers are electrically connected, and the main capacitor of the top layer is electrically connected with the grading ring;
the voltage divider is formed by connecting a plurality of layers of insulation shielding capacitors end to end, the insulation shielding capacitor at the top is electrically connected with the equalizing ring, and the insulation shielding capacitors at two adjacent layers are fixed on an installation subarea through a fixing bracket;
one side of the fixed support is connected with the bottoms of the three oxygen glass steel tubes in the installation area through bolts, and the other side of the fixed support is connected with a first flange at the bottom of the insulation shielding capacitor; and one side of a fixed support at the bottom of the voltage divider is connected with the tops of three epoxy glass steel tubes in the installation sub-area through bolts, and the other side of the fixed support is connected with a second flange at the top of the insulation shielding capacitor.
The experimental device for the compact impulse voltage generator and the voltage divider is also characterized in that:
the insulation shielding capacitor of each layer consists of an insulation shielding barrel, a conductive rubber ring, a pulse capacitor, an end cover, a movable sleeve and a beryllium copper reed;
the insulating shielding barrel is cylindrical, a first flange is arranged at the bottom of the insulating shielding barrel, the insulating shielding barrel is divided into three layers along the wall thickness direction, wherein the inner layer and the outer layer are insulating layers, the middle layer is a metal layer, the first flange is fixedly connected with the outer layer, and a first groove is formed in the bottom of the first flange and used for placing the conductive rubber ring; the metal layer of the insulation shielding barrel vertically penetrates through the insulation shielding barrel and is in contact with the conductive rubber ring in the first groove; the heights of the outer layer and the metal layer at the top of the insulation shielding barrel are higher than those of the inner layer;
the pulse capacitors are coaxially arranged in the insulation shielding barrel, and the pulse capacitors on the upper layer and the lower layer are electrically connected; the pulse capacitor is cylindrical, flanges are arranged at the top and the bottom of the pulse capacitor, and the outer diameters of the two flanges are the same as the inner diameter of the inner layer of the insulation shielding barrel, so that an up-and-down sliding fit structure is formed; one side of a bottom flange of the pulse capacitor is connected with the end cover through a bolt; the end cover is connected with the bottom of the insulation shielding barrel through a screw; thereby realizing the fixed connection of the pulse capacitor and the insulation shielding barrel;
the movable sleeve is matched with the top of the insulation shielding barrel; the movable sleeve is cylindrical, a second flange is arranged at the top of the movable sleeve, the movable sleeve is divided into three layers along the wall thickness direction, wherein the inner layer and the outer layer are insulating layers, the middle layer is a metal layer, the second flange is fixedly connected with the outer layer, and a second groove is formed in the bottom of the second flange and used for placing a conductive rubber ring; the metal layer of the movable sleeve penetrates through the movable sleeve and is in contact with the conductive rubber ring in the second groove; the heights of the inner layer and the metal layer of the bottom of the movable sleeve are higher than those of the outer layer; the outer diameter of the metal layer at the bottom of the movable sleeve is slightly smaller than the inner diameter of the metal layer at the top of the insulation shielding barrel, so that the metal layer at the bottom of the movable sleeve is inserted into the metal layer at the top of the insulation shielding barrel;
the beryllium copper reed is arranged between the inner side of the metal layer at the top of the insulation shielding barrel and the outer side of the movable sleeve to realize the electric connection of the insulation shielding barrel and the movable sleeve;
compared with the prior art, the invention has the beneficial effects that:
the invention realizes the electric connection of each layer of shielding insulating barrels through the conductive rubber by additionally arranging the shielding insulating barrels on the pulse capacitors in the voltage divider, effectively isolates the interaction of the impulse voltage generator and the voltage divider during discharging, simultaneously adopts an inner layer and an outer layer of insulating materials, prevents the impulse voltage generator and the voltage divider from discharging the shielding layers under the condition of high voltage, and realizes the integrated structural design of the impulse voltage generator and the voltage divider. Meanwhile, each layer of insulation shielding barrel is independently installed, the clamping support and the installation support can be disassembled, the sliding flange is moved, free disassembly of each layer of insulation shielding barrel is achieved, and the installation and maintenance are convenient.
Drawings
FIG. 1 is a general schematic diagram of a compact very high surge voltage divider;
FIG. 2 is a schematic view of an insulation shield capacitor installation;
FIG. 3 is a schematic diagram of an insulation shield capacitor structure;
FIG. 4 is a schematic view of a beryllium copper spring plate mounting;
reference numbers in the figures: the device comprises a base 1, a voltage divider 2, a voltage equalizing ring 3, a surge voltage generator body 4, a capacitor support 5, a support structure 6, a main capacitor 7, an insulating shielding capacitor 8, an insulating shielding barrel 9, a conductive rubber ring 10, a pulse capacitor 11, an end cover 12, a movable sleeve 13, a beryllium copper reed 14, an epoxy glass steel tube 15a, an epoxy glass steel tube 15b and a fixing support 16.
Detailed Description
In this embodiment, as shown in fig. 1, an experimental apparatus for a compact impulse voltage generator and a voltage divider includes: the device comprises a base 1, a voltage divider 2, a grading ring 3, an impulse voltage generator 4, a capacitor support 5, a supporting structure 6 and a main capacitor 7;
the base 1 is fixed on a foundation, and a square area is arranged on the base 1 and used for mounting the impact generator 4; on the diagonal line of the square area of the base 1, a plurality of epoxy glass reinforced plastic pipes 15a are symmetrically arranged towards the center direction along 4 vertex positions of the square area respectively, the epoxy glass reinforced plastic pipes 15a surrounded by one circle at the center of the square area form a small square area, a plurality of epoxy glass reinforced plastic pipes 15a are symmetrically arranged at the middle position of the small square area to form a center mounting area, and as shown in fig. 2, a capacitor bracket 5 is mounted at the top of the center mounting area; a main capacitor 7 is arranged on the capacitor bracket 5;
as shown in fig. 2, a matched epoxy glass fiber reinforced plastic tube 15b is arranged outside the central installation area and inside the small square area, two epoxy glass fiber reinforced plastic tubes 15a adjacent to the epoxy glass fiber reinforced plastic tube 15b and the matched epoxy glass fiber reinforced plastic tube 15b on the central installation area jointly form an installation subarea, and a voltage divider 2 is installed on the installation subarea; all the epoxy glass reinforced plastic pipes form a first layer of support structure 6 on the base 1;
the number and the positions of the epoxy glass reinforced plastic pipes which are the same as those of the first layer of supporting structure 6 form N layers of supporting structures, and the epoxy glass reinforced plastic pipes among the layers are connected end to end, so that an integral supporting structure of the experimental device is formed; a grading ring 3 is fixed at the top of the integral supporting structure;
each layer of the integral supporting structure is provided with a main capacitor 7, the main capacitors of the layers are electrically connected, the main capacitor of the top layer is electrically connected with the grading ring 3, and the main capacitor, the charging device, the spherical gap structure and the like form an impulse voltage generator 4;
the voltage divider 2 is formed by connecting a plurality of layers of insulation shielding capacitors 8 end to end, the insulation shielding capacitor at the top is connected with the voltage-equalizing ring 3, and the insulation shielding capacitors 8 at two adjacent layers are fixed on an installation subarea through a fixing bracket 16;
as shown in fig. 2, one side of the fixed bracket 16 is connected with the bottoms of the three oxygen glass reinforced plastic pipes in the installation area through bolts, and the other side is connected with a first flange at the bottom of the insulation shielding capacitor 8; and one side of the fixed support at the bottom of the voltage divider 2 is connected with the tops of the three epoxy glass steel tubes in the installation sub-area through bolts, and the other side of the fixed support is connected with a second flange at the top of the insulation shielding capacitor 8. Through the connection mode, each insulation shielding capacitor 8 is provided with an independent installation structure and can be independently disassembled;
in specific implementation, as shown in fig. 3, each layer of insulation shielding capacitor 8 is composed of an insulation shielding barrel 9, a conductive rubber ring 10, a pulse capacitor 11, an end cover 12, a movable sleeve 13, and a beryllium copper reed 14;
the insulation shielding barrel 9 is cylindrical, a first flange is arranged at the bottom of the insulation shielding barrel 9, the insulation shielding barrel 9 is provided with three layers along the wall thickness direction, wherein the inner layer and the outer layer are insulation layers, the middle layer is a metal layer, the first flange is fixedly connected with the outer layer, and a first groove is formed in the bottom of the first flange and used for placing the conductive rubber ring 10; the metal layer of the insulation shielding barrel 9 vertically penetrates through the insulation shielding barrel 9 and is in contact with the conductive rubber ring 10 in the first groove; the heights of the outer layer and the metal layer at the top of the insulation shielding barrel 9 are higher than those of the inner layer;
the top of the insulation shielding barrel 9 is matched with a movable sleeve 13; the movable sleeve 13 is cylindrical, a second flange is arranged at the top of the movable sleeve, the movable sleeve 13 is divided into three layers along the wall thickness direction, wherein the inner layer and the outer layer are insulating layers, the middle layer is a metal layer, the second flange is fixedly connected with the outer layer, and a second groove is formed in the bottom of the second flange and used for placing a conductive rubber ring; the metal layer of the movable sleeve 13 penetrates through the movable sleeve 13 and is in contact with the conductive rubber ring in the second groove; at the bottom of the movable sleeve 13, the heights of the inner layer and the metal layer are higher than those of the outer layer; the outer diameter of the metal layer at the bottom of the movable sleeve 13 is slightly smaller than the inner diameter of the metal layer at the top of the insulating shielding barrel 9, so that the metal layer at the bottom of the movable sleeve 13 is inserted into the metal layer at the top of the insulating shielding barrel 9;
as shown in fig. 4, a beryllium copper reed 14 is arranged between the inner side of the metal layer at the top of the insulation shielding barrel 9 and the outer side of the movable sleeve 13 to realize the electrical connection of the insulation shielding barrel 9 and the movable sleeve 13;
because the movable sleeve 13 can move up and down, the bolts on the flange at the top of the movable sleeve 13 are removed during maintenance, the movable sleeve 13 is moved down, the electric connection between the adjacent pulse capacitors 11 is removed, and the bolts on the flange at the bottom of the insulation shielding barrel 9 are removed, so that the single-layer insulation shielding capacitor 8 can be detached; conversely, the installation of the single-layer insulation shielding capacitor 8 can be realized;
the beryllium copper reed 14, the conductive rubber 10, the edge shielding barrel 9 and the metal layer of the movable sleeve 13 in the structure of the insulation shielding capacitor 8 form a shielding layer together, so that the shielding layer is used for shielding an electromagnetic field generated when the impulse voltage generator 4 discharges, and the influence of the electromagnetic field on the measurement precision of the voltage divider 2 is reduced; the outer layers of the insulation shielding barrel 9 and the movable sleeve 13 form a first insulation layer to prevent the reconstruction voltage generator 4 from discharging to the shielding layer, and the inner layers of the insulation shielding barrel 9 and the movable sleeve 13 form a second insulation layer to prevent the pulse capacitor 11 from discharging to the shielding layer.
Claims (2)
1. An experimental apparatus for compact surge voltage generator and voltage divider, comprising: the device comprises a base (1), a voltage divider (2), a grading ring (3), an impulse voltage generator (4), a capacitor support (5), a supporting structure (6) and a main capacitor (7);
the base (1) is fixed on a foundation, and a square area is arranged on the base (1) and used for mounting the impulse voltage generator (4); on a diagonal line of a square area of the base (1), a plurality of epoxy glass reinforced plastic pipes (15a) are symmetrically arranged towards the center direction along 4 vertex positions of the square area respectively, the epoxy glass reinforced plastic pipes (15a) surrounded by one circle of the center of the square area form a small square area, a plurality of epoxy glass reinforced plastic pipes (15a) are symmetrically arranged at the middle position of the small square area to form a center mounting area, and the capacitor support (5) is mounted at the top of the center mounting area; the capacitor bracket (5) is provided with the main capacitor (7);
a matched epoxy glass fiber reinforced plastic pipe (15b) is arranged on the outer side of the central mounting area and on the inner side of the small square area, two epoxy glass fiber reinforced plastic pipes (15a) adjacent to the epoxy glass fiber reinforced plastic pipe (15b) and the matched epoxy glass fiber reinforced plastic pipe (15b) on the central mounting area jointly form a mounting sub-area, and the voltage divider (2) is mounted on the mounting sub-area; all the epoxy glass fiber reinforced plastic pipes form a first layer of support structure (6) on the base (1);
the number and the positions of the epoxy glass reinforced plastic pipes which are the same as those of the first layer of supporting structure (6) form N layers of supporting structures, and the epoxy glass reinforced plastic pipes among the layers are connected end to form an integral supporting structure of the experimental device; the grading ring (3) is fixed at the top of the integral supporting structure;
each layer of the integral supporting structure is provided with a main capacitor (7), the main capacitors of all layers are electrically connected, and the main capacitor of the top layer is electrically connected with the grading ring (3);
the voltage divider (2) is formed by connecting a plurality of layers of insulation shielding capacitors (8) end to end, the insulation shielding capacitor at the top is electrically connected with the equalizing ring (3), and the insulation shielding capacitors (8) at two adjacent layers are fixed on an installation subarea through a fixing support (16);
one side of the fixed support (16) is connected with the bottoms of the three oxygen glass steel tubes in the installation area through bolts, and the other side of the fixed support is connected with a first flange at the bottom of the insulation shielding capacitor (8); and one side of a fixed support at the bottom of the voltage divider (2) is connected with the tops of three epoxy glass steel tubes in the installation sub-area through bolts, and the other side of the fixed support is connected with a second flange at the top of the insulation shielding capacitor (8).
2. The experimental set-up for a compact surge voltage generator and voltage divider according to claim 1, wherein:
each layer of the insulation shielding capacitor (8) consists of an insulation shielding barrel (9), a conductive rubber ring (10), a pulse capacitor (11), an end cover (12), a movable sleeve (13) and a beryllium copper reed (14);
the insulation shielding barrel (9) is cylindrical, a first flange is arranged at the bottom of the insulation shielding barrel, the insulation shielding barrel (9) is provided with three layers along the wall thickness direction, wherein the inner layer and the outer layer are insulation layers, the middle layer is a metal layer, the first flange is fixedly connected with the outer layer, and a first groove is formed in the bottom of the first flange and used for placing the conductive rubber ring (10); the metal layer of the insulation shielding barrel (9) vertically penetrates through the insulation shielding barrel (9) and is in contact with the conductive rubber ring (10) in the first groove; the heights of the outer layer and the metal layer at the top of the insulation shielding barrel (9) are higher than those of the inner layer;
the pulse capacitors (11) are coaxially arranged in the insulation shielding barrel (9), and the pulse capacitors (11) on the upper layer and the lower layer are electrically connected; the pulse capacitor (11) is cylindrical, flanges are arranged at the top and the bottom of the pulse capacitor, and the outer diameters of the two flanges are the same as the inner diameter of the inner layer of the insulation shielding barrel (9), so that an up-and-down sliding fit structure is formed; one side of a bottom flange of the pulse capacitor (11) is connected with the end cover (12) through a bolt; the end cover (12) is connected with the bottom of the insulation shielding barrel (9) through a screw; thereby realizing the fixed connection of the pulse capacitor (11) and the insulation shielding barrel (9);
the movable sleeve (13) is matched at the top of the insulation shielding barrel (9); the movable sleeve (13) is cylindrical, a second flange is arranged at the top of the movable sleeve, the movable sleeve (13) is divided into three layers along the wall thickness direction, wherein the inner layer and the outer layer are insulating layers, the middle layer is a metal layer, the second flange is fixedly connected with the outer layer, and a second groove is formed in the bottom of the second flange and used for placing a conductive rubber ring; the metal layer of the movable sleeve (13) penetrates through the movable sleeve (13) and is in contact with the conductive rubber ring in the second groove; the heights of the inner layer and the metal layer of the movable sleeve (13) are higher than those of the outer layer; the outer diameter of the metal layer at the bottom of the movable sleeve (13) is slightly smaller than the inner diameter of the metal layer at the top of the insulation shielding barrel (9), so that the metal layer at the bottom of the movable sleeve (13) is inserted into the metal layer at the top of the insulation shielding barrel (9);
the beryllium copper reed (14) is arranged between the inner side of the metal layer at the top of the insulation shielding barrel (9) and the outer side of the movable sleeve (13) so as to realize the electric connection of the insulation shielding barrel (9) and the movable sleeve (13).
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| CN202110660339.4A CN113358962B (en) | 2021-06-15 | 2021-06-15 | Experimental device for compact impulse voltage generator and voltage divider |
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