A discharge gap high voltage test device

Abstract

The present invention belongs to the technical field of breakdown voltage test equipment, and discloses a discharge gap high voltage test device, including a high voltage electrode plate, a first electrode and a high voltage measuring meter, a microammeter is installed on the high voltage electrode plate, the microammeter is electrically connected to the high voltage electrode plate, and the microammeter is connected to an external power supply; the first electrode is spaced apart from the high voltage electrode plate and the spacing distance is fixed; one end of the high voltage measuring meter is fixedly connected to a connecting conductor, one end of the connecting conductor is movably provided with a second electrode, the second electrode is located between the high voltage electrode plate and the first electrode, the other end of the high voltage measuring meter is electrically connected to the first electrode, and the position of the second electrode between the high voltage electrode plate and the first electrode is adjustable. The present invention can improve the detection range and meet the detection requirements.

Description

Technical Field

[0001] The invention relates to the technical field of breakdown voltage testing equipment, and in particular to a discharge gap high voltage testing device. Background Art

[0002] Studying the discharge phenomenon of the gap under the space particles, so as to design the discharge gap more reasonably and scientifically is the main research direction of the power system, such as lightning rods with gaps, high-voltage discharge gaps of transmission lines, neutral point discharge, etc. In existing research, it is usually necessary to use a gap voltage test device for testing. The existing gap voltage test device includes a high-voltage power supply with variable voltage, a high-voltage voltmeter connected to both ends of the high-voltage power supply, and one end of the high-voltage power supply is connected to a needle electrode, and the other end is connected to a disc electrode. The needle electrode, the high-voltage power supply, and the disc electrode constitute a set of non-closed high-voltage breakdown circuits. The distance between the two electrodes is fixed, and the high-voltage voltmeter is connected to both ends of the power supply. When measuring the vacuum degree in a confined space, the two electrodes with fixed distances are placed therein, and the voltage is adjusted to discharge the tip of the needle electrode, thereby measuring the discharge voltage, so that the vacuum degree of the measured space can be calculated. The distance between the two electrodes of the existing gap voltage test device is fixed, and it is impossible to test gaps of different sizes, and the scope of application is small.

[0003] Therefore, there is an urgent need for a discharge gap high voltage testing device that can increase the detection range and meet the detection requirements. Summary of the invention

[0004] An object of the present invention is to provide a discharge gap high voltage testing device, which can increase the detection range and meet the detection requirements.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A discharge gap high voltage testing device, comprising:

[0007] A high-voltage electrode plate, on which a microammeter is mounted, the microammeter is electrically connected to the high-voltage electrode plate, and the microammeter is connected to an external power supply;

[0008] A first electrode, spaced apart from the high voltage electrode plate at a fixed distance;

[0009] A high-voltage measuring meter, wherein one end of the high-voltage measuring meter is fixedly connected to a connecting conductor, one end of the connecting conductor is movably provided with a second electrode, the second electrode is located between the high-voltage electrode plate and the first electrode, the other end of the high-voltage measuring meter is electrically connected to the first electrode, and the position of the second electrode between the high-voltage electrode plate and the first electrode is adjustable.

[0010] As an optional technical solution, a discharge tip is provided on a side of the high voltage electrode plate facing the first electrode and the second electrode.

[0011] As an optional technical solution, the discharge gap high voltage test device further includes a discharge particle panel, which is arranged on the high voltage electrode plate, and the discharge tip is installed on a side of the discharge particle panel facing the first electrode and the second electrode.

[0012] As an optional technical solution, the discharge gap high voltage testing device further includes a bottom electrode, the bottom electrode is used to be connected to a ground grid, and the first electrode is fixedly mounted on the bottom electrode.

[0013] As an optional technical solution, an insulating support is fixedly mounted on the bottom electrode, and the high-voltage electrode plate is fixedly mounted on the top of the insulating support.

[0014] As an optional technical solution, an avoidance hole is opened on the high-voltage electrode plate, the discharge particle panel is placed on the side of the high-voltage electrode plate away from the first electrode and the second electrode, and the discharge tip passes through the avoidance hole.

[0015] As an optional technical solution, a plurality of the avoidance holes are arranged equidistantly and side by side on the high-voltage electrode plate, a plurality of the discharge particle panels are arranged, and a plurality of the discharge tips are arranged equidistantly and side by side on each of the discharge particle panels, and each of the discharge tips passes through one of the avoidance holes.

[0016] As an optional technical solution, a plurality of connection holes are provided on the connection conductor and the second electrode, and the connection conductor and the second electrode are fixedly connected by fasteners passing through the connection holes.

[0017] As an optional technical solution, the high-voltage measuring meter includes a main body module and an upper electrode, the upper electrode is electrically connected to the connecting conductor, the main body module is spaced apart from the upper electrode and the main body module is installed on the bottom electrode, and the main body module is electrically connected to the bottom electrode.

[0018] As an optional technical solution, the high-voltage measuring meter further includes an insulating member, and the upper electrode is mounted on the insulating member.

[0019] The beneficial effects of the present invention are:

[0020] The invention provides a discharge gap high voltage test device. Before using the discharge gap high voltage test device, the installation position of the second electrode on the connecting conductor is adjusted to change the distance from the second electrode to the first electrode. When the distance between the second electrode and the first electrode reaches a first preset value, the external power supply is started to power on a microammeter, which can detect and obtain a current value. The microammeter is connected in series with a high voltage electrode plate, and the microammeter guides the current to the high voltage electrode plate. The high voltage electrode plate releases charged particles, so that charged particles exist in the space near the high voltage electrode plate, the charged particles adhere to the first electrode and the second electrode, and the gap between the first electrode and the electrodes also contains charged particles. The high voltage measuring meter can measure and obtain a voltage value. The voltage of the external power supply is continuously increased. Before recording the breakdown of the first electrode and the second electrode, the current value of the microammeter and the voltage value of the high voltage measuring meter are recorded, the external power supply is turned off, and the installation position of the second electrode on the connecting conductor is adjusted again, so that the distance between the second electrode and the first electrode reaches a second preset value. The external power supply is started again, and the detection is repeated to obtain the current value of the microammeter and the voltage value of the high voltage measuring meter when the gap between the first electrode and the second electrode is the second preset value. The discharge gap high-voltage testing device of the present invention has high detection efficiency, can be applied to the detection of gaps of different sizes, and has wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below based on the accompanying drawings and embodiments;

[0022] Figure 1 It is a structural schematic diagram of the discharge gap high voltage testing device described in the embodiment.

[0023] In the figure:

[0024] 1. High-voltage electrode plate; 11. Avoidance hole; 2. Microammeter; 3. First electrode; 4. High-voltage measuring meter; 41. Main body module; 42. Upper electrode; 43. Insulating part; 5. Connecting conductor; 6. Second electrode; 7. Discharge particle panel; 71. Discharge tip; 72. Handle; 8. Bottom electrode; 9. Insulating support. DETAILED DESCRIPTION

[0025] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", etc., and the like, are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0029] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] Embodiment 1:

[0032] like Figure 1As shown, the present embodiment provides a discharge gap high voltage test device, which includes a high voltage electrode plate 1, a first electrode 3 and a high voltage measuring meter 4, a microammeter 2 is installed on the high voltage electrode plate 1, the microammeter 2 is electrically connected to the high voltage electrode plate 1, and the microammeter 2 is connected to an external power supply; the first electrode 3 and the high voltage electrode plate 1 are spaced apart and the spacing distance is fixed; one end of the high voltage measuring meter 4 is fixedly connected to a connecting conductor 5, one end of the connecting conductor 5 is movably provided with a second electrode 6, the second electrode 6 is located between the high voltage electrode plate 1 and the first electrode 3, the other end of the high voltage measuring meter 4 is electrically connected to the first electrode 3, and the position of the second electrode 6 between the high voltage electrode plate 1 and the first electrode 3 is adjustable.

[0033] Specifically, before using the discharge gap high voltage test device, the installation position of the second electrode 6 on the connecting conductor 5 is adjusted to change the distance between the second electrode 6 and the first electrode 3. When the distance between the second electrode 6 and the first electrode 3 reaches a first preset value, the external power supply is started to energize the microammeter 2. The microammeter 2 can detect the current value, and the microammeter 2 is connected in series with the high-voltage electrode plate 1. The microammeter 2 guides the current to the high-voltage electrode plate 1. The high-voltage electrode plate 1 releases charged particles, so that charged particles exist in the space near the high-voltage electrode plate 1, and the charged particles adhere to the first electrode 3 and the second electrode 6, as well as the first There are also charged particles in the gap between the electrode 3 and the second electrode 6, and the high-voltage meter 4 can measure the voltage value. The voltage of the external power supply is continuously increased, and the current value of the microammeter 2 and the voltage value of the high-voltage meter 4 are recorded before the first electrode 3 and the second electrode 6 break through the gap. The external power supply is turned off, and the installation position of the second electrode 6 on the connecting conductor 5 is adjusted so that the distance between the second electrode 6 and the first electrode 3 reaches the second preset value. The external power supply is started again, and the detection is repeated to obtain the current value of the microammeter 2 and the voltage value of the high-voltage meter 4 when the gap between the first electrode 3 and the second electrode 6 is the second preset value. The discharge gap high-voltage test device of the present invention has high detection efficiency, can be applied to the detection of gaps of different sizes, and has wide adaptability; the position of the connecting conductor 5 relative to the high-voltage meter 4 is fixed and unchanged, and the position of the connecting conductor 5 does not need to be adjusted, so it can ensure that the second electrode 6 can always be located directly above the first electrode 3, ensuring the accuracy of the test.

[0034] Optionally, a discharge tip 71 is provided on one side of the high voltage electrode plate 1 facing the first electrode 3 and the second electrode 6 to improve the efficiency of releasing charged particles. Due to physical properties, the discharge efficiency of a pointed conductor is significantly higher than that of a planar conductor.

[0035] Optionally, the discharge gap high voltage test device further includes a discharge particle panel 7, the discharge particle panel 7 is arranged on the high voltage electrode plate 1, and the discharge tip 71 is installed on the side of the discharge particle panel 7 facing the first electrode 3 and the second electrode 6. The discharge tip 71 is integrally arranged with the discharge particle panel 7, and the discharge efficiency can be changed by increasing or decreasing the number of the discharge particle panels 7, so that the number of driven particles in the test space is controlled.

[0036] Optionally, a handle 72 is provided on the side of the discharge particle panel 7 facing away from the discharge tip 71 to facilitate extraction by the user.

[0037] Optionally, the discharge gap high voltage test device further comprises a bottom electrode 8, the bottom electrode 8 is used to be connected to the ground grid, and the first electrode 3 is fixedly mounted on the bottom electrode 8. The bottom electrode 8 can perform leakage protection.

[0038] Optionally, an insulating support 9 is fixedly mounted on the bottom electrode 8, and the high-voltage electrode plate 1 is fixedly mounted on the top of the insulating support 9. The insulating support 9 can limit the distance between the bottom electrode 8 and the high-voltage electrode plate 1 and provide insulation protection.

[0039] Optionally, a avoidance hole 11 is provided on the high-voltage electrode plate 1, and the discharge particle panel 7 is placed on the side of the high-voltage electrode plate 1 away from the first electrode 3 and the second electrode 6, and the discharge tip 71 passes through the avoidance hole 11. The discharge particle panel 7 of this embodiment can be quickly placed on the high-voltage electrode plate 1 without being fastened by bolts or screws, which facilitates the increase or decrease of the number of discharge particle panels 7.

[0040] Optionally, a plurality of avoidance holes 11 are arranged side by side at equal intervals on the high-voltage electrode plate 1 , a plurality of discharge particle panels 7 are provided, and a plurality of discharge tips 71 are arranged side by side at equal intervals on each discharge particle panel 7 , and each discharge tip 71 is passed through an avoidance hole 11 .

[0041] Optionally, a plurality of connection holes are provided on the connection conductor 5 and the second electrode 6, and the connection conductor 5 and the second electrode 6 are fixedly connected by fasteners passing through the connection holes. When it is necessary to extend the gap between the first electrode 3 and the second electrode 6, the position of the second electrode 6 is adjusted higher, and then the second electrode 6 and the connection conductor 5 are fixed by fasteners. If it is necessary to shorten the gap between the first electrode 3 and the second electrode 6, the position of the second electrode 6 is adjusted lower, and then the second electrode 6 and the connection conductor 5 are fixed by fasteners.

[0042] Optionally, the high-voltage measuring meter 4 includes a main body module 41 and an upper electrode 42 , the upper electrode 42 is electrically connected to the connecting conductor 5 , the main body module 41 and the upper electrode 42 are spaced apart and the main body module 41 is installed on the bottom electrode 8 , and the main body module 41 is electrically connected to the bottom electrode 8 .

[0043] Optionally, the high-voltage measuring meter 4 further includes an insulating member 43 , and the upper electrode 42 is mounted on the insulating member 43 .

[0044] In this embodiment, when it is necessary to adjust the parameters to repeat the test, the adjustment can be made by adjusting the gap between the first electrode 3 and the second electrode 6 , or by increasing or decreasing the number of discharge particle panels 7 .

[0045] Embodiment 2:

[0046] The difference between this embodiment and the first embodiment is that the high voltage measuring meter 4 of this embodiment adopts an existing voltmeter.

[0047] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A discharge gap high voltage test device, characterized in that: include: A high-voltage electrode plate (1), a microammeter (2) being mounted on the high-voltage electrode plate (1), the microammeter (2) being electrically connected to the high-voltage electrode plate (1), and the microammeter (2) being connected to an external power source; A first electrode (3) is spaced apart from the high-voltage electrode plate (1) at a fixed distance; A high-voltage measuring meter (4), wherein one end of the high-voltage measuring meter (4) is fixedly connected to a connecting conductor (5), one end of the connecting conductor (5) is movably provided with a second electrode (6), the second electrode (6) is located between the high-voltage electrode plate (1) and the first electrode (3), the other end of the high-voltage measuring meter (4) is electrically connected to the first electrode (3), and the position of the second electrode (6) between the high-voltage electrode plate (1) and the first electrode (3) is adjustable; The high-voltage electrode plate (1) is provided with a discharge tip (71) on a side facing the first electrode (3) and the second electrode (6); The discharge gap high voltage test device further comprises a discharge particle panel (7), wherein the discharge particle panel (7) is arranged on the high voltage electrode plate (1), and the discharge tip (71) is installed on a side of the discharge particle panel (7) facing the first electrode (3) and the second electrode (6); The discharge gap high-voltage testing device further comprises a bottom electrode (8), the bottom electrode (8) being used to be connected to a ground grid, and the first electrode (3) being fixedly mounted on the bottom electrode (8); The high-voltage measuring meter (4) comprises a main body module (41) and an upper electrode (42), the upper electrode (42) being electrically connected to the connecting conductor (5), the main body module (41) being spaced apart from the upper electrode (42) and the main body module (41) being mounted on the bottom electrode (8), and the main body module (41) being electrically connected to the bottom electrode (8); The high-voltage measuring meter (4) further comprises an insulating member (43), and the upper electrode (42) is mounted on the insulating member (43).

2. The discharge gap high voltage testing device according to claim 1, characterized in that: An insulating support (9) is fixedly mounted on the bottom electrode (8), and the high-voltage electrode plate (1) is fixedly mounted on the top of the insulating support (9).

3. The discharge gap high voltage testing device according to claim 2, characterized in that: The high-voltage electrode plate (1) is provided with an avoidance hole (11), the discharge particle panel (7) is placed on a side of the high-voltage electrode plate (1) away from the first electrode (3) and the second electrode (6), and the discharge tip (71) penetrates the avoidance hole (11).

4. The discharge gap high voltage testing device according to claim 3, characterized in that: The high-voltage electrode plate (1) is provided with a plurality of avoidance holes (11) arranged side by side at equal intervals, and the discharge particle panel (7) is provided with a plurality of discharge tips (71) arranged side by side at equal intervals on each discharge particle panel (7), and each discharge tip (71) is penetrated by one of the avoidance holes (11).

5. The discharge gap high voltage testing device according to claim 1, characterized in that: The connecting conductor (5) and the second electrode (6) are both provided with a plurality of connecting holes, and the connecting conductor (5) and the second electrode (6) are fixedly connected by fasteners passing through the connecting holes.

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