Wireless main transformer bushing insulation monitoring device

Abstract

The utility model discloses a wireless main transformer bushing insulation monitoring device, which belongs to the technical field of insulation monitoring and comprises a shell, an antenna, a battery, a solar panel, a circuit mainboard unit, a mutual inductor unit and an end screen adapter unit. One side of the shell is provided with an antenna, the other side of the shell is provided with an end screen adaptation unit, the top of the shell is provided with a solar panel, the shell is internally provided with a battery, a circuit mainboard unit and a mutual inductor unit, the circuit mainboard unit is located between the battery and the mutual inductor unit, the battery is close to the antenna, and the mutual inductor unit is close to the antenna. The mutual inductor unit is close to the end screen adaptation unit; according to the utility model, the main transformer bushing insulation monitoring device is designed to replace an original grounding cap, so that loop grounding is realized, the bushing insulation condition is monitored, faults caused by abnormal insulation of high-voltage equipment are effectively reduced, and the operation of a power grid is safer, more stable, more reliable and more economical.

Description

Technical Field

[0001] The utility model relates to the technical field of insulation monitoring, in particular to a wireless main transformer bushing insulation monitoring device. Background Art

[0002] The degradation of insulation performance of high-voltage electrical equipment in places such as substations will affect the safe operation of equipment and power grids. Bushings are an important component of power transformers, but the insulation status of capacitor-type bushings cannot be obtained in time. Utility Model Content

[0003] The utility model aims to provide a wireless main transformer bushing insulation monitoring device to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A wireless main transformer bushing insulation monitoring device comprises a shell; an antenna is arranged on one side of the shell, an end screen adapter unit is arranged on the other side of the shell, a solar panel is arranged on the top of the shell, a battery, a circuit main board unit and a mutual inductor unit are arranged inside the shell, the circuit main board unit is located between the battery and the mutual inductor unit, the battery is close to the antenna, and the mutual inductor unit is close to the end screen adapter unit;

[0006] The antenna is used for wireless transmission of the insulation status of the bushing, making monitoring timely and convenient; the battery is used for storing and providing power, so that the device obtains stable power support and operates normally and stably; the solar panel is used for collecting solar energy, making the device more energy-saving and environmentally friendly.

[0007] According to the above technical solution, the shell includes a base, a fixing plate, a first flange, a first screw, a second screw, a third screw, a fourth screw, a waterproof pad and a grounding lead; the fixing plate is connected to the top of the base by the first screw and the second screw; the first flange is fixedly connected to one side of the base; the first flange is connected to the end screen adapter unit by the third screw and the fourth screw; the waterproof pad is arranged between the first flange and the end screen adapter unit; the fourth screw is connected with a grounding lead, and the grounding lead is used for grounding;

[0008] The shell is used to carry various components of the device, and the components that are easily affected by the external environment are sealed inside the shell, thereby protecting vulnerable parts, improving the stability and accuracy of the device, and extending the service life of the device.

[0009] According to the above technical solution, the circuit mainboard unit includes a power charging management mainboard, a signal acquisition operation mainboard, a first connecting member and a second connecting member; the bottom of the power charging management mainboard is connected to the housing; the top of the power charging management mainboard is connected to one end of the first connecting member and one end of the second connecting member; the other end of the first connecting member and the other end of the second connecting member are connected to the signal acquisition operation mainboard;

[0010] The circuit mainboard unit is used to collect, process, analyze and transmit various data of the casing and the device itself.

[0011] According to the above technical solution, the transformer unit includes a power frequency transformer, a high frequency transformer and an energy-taking transformer; the power frequency transformer, the high frequency transformer and the energy-taking transformer are arranged and distributed in sequence; the power frequency transformer, the high frequency transformer and the energy-taking transformer are electrically connected;

[0012] The mutual inductor unit is used for collecting various signal data and energy.

[0013] According to the above technical solution, the end-screen adapter unit includes an adapter body, an end-screen grounding column, a through-core grounding wire, a second flange and a fifth screw; one side of the adapter body is fixedly connected to the second flange, and the second flange is connected to the first flange; an end-screen grounding column is arranged inside the adapter body; one end of the end-screen grounding column extends to the outside of the adapter body, and this end of the end-screen grounding column is connected to one end of the through-core grounding wire through the fifth screw; the other end of the through-core grounding wire is connected to the shell;

[0014] The end-screen adapter unit is used to connect the device to the end-screen grounding joint of the bushing to achieve loop grounding and avoid excessive induced voltage generated by the device being suspended in the air, thereby damaging the insulation.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] The utility model replaces the original grounding cap by designing a main transformer bushing insulation monitoring device, which not only replaces the original grounding cap's function of forming a loop grounding, but also realizes the monitoring of the bushing insulation condition, effectively reducing faults caused by abnormal insulation of high-voltage equipment, making the operation of the power grid safer, more stable, reliable and economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a front view structural schematic diagram of the entire utility model;

[0019] Figure 2 It is a front structural schematic diagram of the housing of the utility model;

[0020] Figure 3 It is a front structural schematic diagram of the circuit mainboard unit of the utility model;

[0021] Figure 4 It is a front structural schematic diagram of the mutual inductor unit of the utility model;

[0022] Figure 5 It is a front structural schematic diagram of the terminal screen adapter unit of the utility model.

[0023] In the figure: 1. Shell; 11. Base; 12. Fixing plate; 13. First flange; 14. First screw; 15. Second screw; 16. Third screw; 17. Fourth screw; 18. Waterproof pad; 19. Ground lead; 2. Antenna; 3. Battery; 4. Solar panel; 5. Circuit main board unit; 51. Power charging management main board; 52. Signal acquisition and operation main board; 53. First connecting piece; 54. Second connecting piece; 6. Transformer unit; 61. Power frequency transformer; 62. High frequency transformer; 63. Energy extraction transformer; 7. End screen adapter unit; 71. Adapter body; 72. End screen grounding column; 73. Core grounding wire; 74. Second flange; 75. Fifth screw. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 , the utility model provides a technical solution:

[0026] A wireless main transformer bushing insulation monitoring device comprises a shell 1; an antenna 2 is arranged on one side of the shell 1, an end-screen adapter unit 7 is arranged on the other side of the shell 1, a solar panel 4 is arranged on the top of the shell 1, a battery 3, a circuit mainboard unit 5 and a mutual inductor unit 6 are arranged inside the shell 1, the circuit mainboard unit 5 is located between the battery 3 and the mutual inductor unit 6, the battery 3 is close to the antenna 2, and the mutual inductor unit 6 is close to the end-screen adapter unit 7.

[0027] See also Figure 2The shell 1 includes a base 11, a fixing plate 12, a first flange 13, a first screw 14, a second screw 15, a third screw 16, a fourth screw 17, a waterproof pad 18 and a grounding lead 19; the fixing plate 12 is connected to the top of the base 11 by the first screw 14 and the second screw 15; the first flange 13 is fixedly connected to one side of the base 11; the first flange 13 is connected to the end screen adapter unit 7 by the third screw 16 and the fourth screw 17; the waterproof pad 18 is arranged between the first flange 13 and the end screen adapter unit 7; the fourth screw 17 is connected with a grounding lead 19, and the grounding lead 19 is used for grounding.

[0028] See also Figure 3 The circuit mainboard unit 5 includes a power charging management mainboard 51, a signal acquisition and operation mainboard 52, a first connecting member 53 and a second connecting member 54; the bottom of the power charging management mainboard 51 is connected to the shell 1; the top of the power charging management mainboard 51 is connected to one end of the first connecting member 53 and one end of the second connecting member 54; the other end of the first connecting member 53 and the other end of the second connecting member 54 are connected to the signal acquisition and operation mainboard 52.

[0029] See also Figure 4 The transformer unit 6 includes an industrial frequency transformer 61, a high frequency transformer 62 and an energy-taking transformer 63; the industrial frequency transformer 61, the high frequency transformer 62 and the energy-taking transformer 63 are arranged and distributed in sequence; the industrial frequency transformer 61, the high frequency transformer 62 and the energy-taking transformer 63 are electrically connected.

[0030] See also Figure 5 The end-screen adapter unit 7 includes an adapter body 71, an end-screen grounding column 72, a through-core grounding wire 73, a second flange 74 and a fifth screw 75; one side of the adapter body 71 is fixedly connected to the second flange 74, and the second flange 74 is connected to the first flange 13; an end-screen grounding column 72 is arranged inside the adapter body 71; one end of the end-screen grounding column 72 extends to the outside of the adapter body 71, and this end of the end-screen grounding column 72 is connected to one end of the through-core grounding wire 73 through the fifth screw 75; the other end of the through-core grounding wire 73 is connected to the shell 1.

[0031] The working principle of this utility model:

[0032] After the device is connected to the bushing end screen grounding joint, the end screen adapter unit 7 and the bushing end screen grounding joint form a loop grounding to enhance the insulation effect. The solar panel 4 collects electrical energy and stores it in the battery 3. The battery 3 provides the power required for the operation of each part. The mutual inductor unit 6 collects various signal data. After the circuit main board unit 5 processes the data, it is wirelessly transmitted through the antenna 2 to achieve remote monitoring.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or a series of elements may include not only those elements, but also other elements not explicitly listed, or may also include elements inherent to such process, method, article, or the like.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Wireless main transformer bushing insulation monitoring device, characterized by: The invention comprises a shell (1); an antenna (2) is arranged on one side of the shell (1); an end-screen adapter unit (7) is arranged on the other side of the shell (1); a solar panel (4) is arranged on the top of the shell (1); a battery (3), a circuit mainboard unit (5) and a mutual inductor unit (6) are arranged inside the shell (1); the circuit mainboard unit (5) is located between the battery (3) and the mutual inductor unit (6); the battery (3) is close to the antenna (2); and the mutual inductor unit (6) is close to the end-screen adapter unit (7).

2. The wireless main transformer bushing insulation monitoring device according to claim 1 is characterized in that: The housing (1) comprises a base (11), a fixing plate (12), a first flange (13), a first screw (14), a second screw (15), a third screw (16), a fourth screw (17), a waterproof pad (18) and a grounding lead (19); the fixing plate (12) is connected to the top of the base (11) by means of the first screw (14) and the second screw (15); the first flange (13) is fixedly connected to one side of the base (11); the first flange (13) is connected to the end screen adapter unit (7) by means of the third screw (16) and the fourth screw (17); the waterproof pad (18) is arranged between the first flange (13) and the end screen adapter unit (7); the fourth screw (17) is connected to a grounding lead (19), and the grounding lead (19) is used for grounding.

3. The wireless main transformer bushing insulation monitoring device according to claim 1 is characterized in that: The circuit mainboard unit (5) comprises a power supply charging management mainboard (51), a signal acquisition operation mainboard (52), a first connecting piece (53) and a second connecting piece (54); the bottom of the power supply charging management mainboard (51) is connected to the housing (1); the top of the power supply charging management mainboard (51) is connected to one end of the first connecting piece (53) and one end of the second connecting piece (54); the other end of the first connecting piece (53) and the other end of the second connecting piece (54) are connected to the signal acquisition operation mainboard (52).

4. The wireless main transformer bushing insulation monitoring device according to claim 1 is characterized in that: The mutual inductor unit (6) comprises a power frequency mutual inductor (61), a high frequency mutual inductor (62) and an energy extraction mutual inductor (63); the power frequency mutual inductor (61), the high frequency mutual inductor (62) and the energy extraction mutual inductor (63) are arranged and distributed in sequence; and the power frequency mutual inductor (61), the high frequency mutual inductor (62) and the energy extraction mutual inductor (63) are electrically connected to each other.

5. The wireless main transformer bushing insulation monitoring device according to claim 2 is characterized in that: The end-screen adapter unit (7) comprises an adapter body (71), an end-screen grounding column (72), a through-core grounding wire (73), a second flange (74) and a fifth screw (75); one side of the adapter body (71) is fixedly connected to the second flange (74), and the second flange (74) is connected to the first flange (13); an end-screen grounding column (72) is arranged inside the adapter body (71); one end of the end-screen grounding column (72) extends to the outside of the adapter body (71), and this end of the end-screen grounding column (72) is connected to one end of the through-core grounding wire (73) via the fifth screw (75); the other end of the through-core grounding wire (73) is connected to the housing (1).

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