Anti-interference grounding resistance on-line monitoring device

Abstract

The utility model relates to the technical field of monitoring devices, and discloses an anti-interference grounding resistance on-line monitoring device, which comprises a box body, an inverter power supply unit fixedly mounted at one end of one side in the box body, a test control unit fixedly mounted in the middle of one side in the box body, and a matched resistance unit fixedly mounted at the other end of one side in the box body, the other end of one side in the box body is fixedly provided with the adaptive power supply unit, and the middle part of the other side in the box body is fixedly provided with the high-frequency transformation unit, so that the device can be conveniently installed in any indoor and outdoor standard cabinet in the use process through the arranged installation groove; through the arrangement of the inverter power supply unit, the test control unit, the matched resistor unit and the adaptive power supply unit, the device can be used for real-time monitoring of equipment grounding resistance, soil resistivity, step voltage, contact voltage and other parameters of a traction substation and a substation of the same type.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring devices, and more specifically to an anti-interference grounding resistance online monitoring device. Background Art

[0002] Grounding resistance is the resistance encountered when current flows from the grounding device into the earth and then flows through the earth to another grounding body or spreads to a distant place. The grounding resistance value reflects the degree of contact between the electrical device and the "ground" and reflects the scale of the grounding network. At present, it is sometimes necessary to measure the grounding resistance in the power industry, so it is necessary to use a grounding resistance online monitoring device.

[0003] The shortcomings of the existing technology: The existing grounding resistance online monitoring equipment can perform real-time online detection of the grounding resistance status of the grounding resistance, and the anti-interference model equipment can test the grounding resistance status under more complex environmental conditions, but the accuracy and precision are poor, and the equipment is inconvenient to install. For this reason, we propose an anti-interference grounding resistance online monitoring device to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an anti-interference grounding resistance online monitoring device to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: an anti-interference grounding resistance online monitoring device, comprising a box, an inverter power supply unit is fixedly installed at one end of one side of the box, a test control unit is fixedly installed in the middle of one side of the box, a matching resistance unit is fixedly installed at the other end of one side of the box, an adapter power supply unit is fixedly installed at the other end of one side of the box, and a high-frequency transformer unit is fixedly installed in the middle of the other side of the box;

[0006] Wherein: the box body also includes two mounting frames, a back plate, a mounting plate, and a cover plate, the two ends of the two mounting frames are respectively fixedly connected to the two ends of the back plate and the mounting plate, the number of the cover plates is two, and the two cover plates are respectively mounted on the upper surface and the lower surface of the box body;

[0007] Preferably, a fan is fixedly connected to one end of the backplane surface, a switch unit is fixedly installed in the middle of the backplane surface, and a communication test unit is fixedly connected to the other end of the backplane surface.

[0008] Preferably, the inverter power supply unit, the test control unit, the matching resistance unit, the adaptive power supply unit, the high-frequency transformer unit, the fan, the switch unit, and the communication test unit are all interconnected by wires.

[0009] Preferably, a heat sink is fixedly mounted on the surface of the inverter power supply unit, and a plurality of heat sinks are arranged at equal intervals on both sides of the heat sink.

[0010] Preferably, the sides of the mounting frame are fixedly connected with side panels, and the surfaces of the side panels are provided with heat dissipation holes.

[0011] Preferably, mounting grooves are provided on both sides of both ends of the mounting plate.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model is provided with an installation slot, and during use, the device can be easily installed in any standard cabinet indoors or outdoors. Through the provided inverter power supply unit, test control unit, matching resistance unit, and adapter power supply unit, the device can be used for real-time monitoring of parameters such as equipment grounding resistance, soil resistivity, step voltage, contact voltage, etc. of traction substations and substations of the same type.

[0014] The utility model is provided with a radiator and heat dissipation holes. During use, the heat generated by the inverter power supply unit will be absorbed by the radiator, and then the heat will be dispersed by the heat dissipation fins on the surface of the radiator. At this time, the fan will drive the air around it to flow quickly, so that the hot air inside the box is discharged from the heat dissipation holes, thereby realizing rapid heat dissipation of the device, which is beneficial to improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0017] The accompanying drawings are marked as follows: 1. box body; 2. inverter power supply unit; 3. test control unit; 4. matching resistor unit; 5. adapter power supply unit; 6. high-frequency transformer unit; 7. radiator; 8. mounting frame; 9. back plate; 10. fan; 11. switch unit; 12. communication test unit; 13. side panel; 14. heat dissipation hole; 15. cover plate; 16. mounting plate; 17. mounting groove. DETAILED DESCRIPTION

[0018] The following will combine the drawings in the utility model to clearly and completely describe the technical solution in the utility model. In addition, the forms of the various structures recorded in the following embodiments are only examples. The anti-interference grounding resistance online monitoring device involved in the utility model is not limited to the various structures recorded in the following embodiments. All other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0019] The utility model provides an anti-interference grounding resistance online monitoring device, including a box body 1, an inverter power supply unit 2 is fixedly installed at one end of one side of the box body 1, a test control unit 3 is fixedly installed in the middle of one side of the box body 1, a matching resistance unit 4 is fixedly installed at the other end of one side of the box body 1, an adapter power supply unit 5 is fixedly installed at the other end of one side of the box body 1, and a high-frequency transformer unit 6 is fixedly installed in the middle of the other side of the box body 1. The box body 1 also includes two mounting frames 8, a back plate 9, a mounting plate 16, and a cover plate 15. The two ends of the two mounting frames 8 are fixedly connected to the two ends of the back plate 9 and the mounting plate 16. The cover plates 15 are fixedly connected, and the number of the cover plates 15 is two, and the two cover plates 15 are respectively mounted on the upper surface and the lower surface of the box body 1. The inverter power supply unit 2, the test control unit 3, the matching resistor unit 4, the adaptive power supply unit 5, the high-frequency transformer unit 6, the fan 10, the switch unit 11, and the communication test unit 12 are interconnected by wires. When in use, the device can be used for real-time monitoring of parameters such as equipment grounding resistance, soil resistivity, step voltage, and contact voltage of traction substations and substations of the same type through the inverter power supply unit 2, the test control unit 3, the matching resistor unit 4, and the adaptive power supply unit 5.

[0020] Furthermore, a fan 10 is fixedly connected to one end of the surface of the back panel 9, a switch unit 11 is fixedly installed in the middle of the surface of the back panel 9, and a communication test unit 12 is fixedly connected to the other end of the surface of the back panel 9. When in use, the fan 10 will drive the air around it to flow quickly, so that the hot air inside the box 1 is discharged from the heat dissipation holes 14, thereby achieving rapid heat dissipation of the device, which is beneficial to improving the stability of the device.

[0021] Furthermore, a radiator 7 is fixedly mounted on the surface of the inverter power supply unit 2, and a plurality of heat sinks are equidistantly arranged on both sides of the radiator 7. Side panels 13 are fixedly connected to the sides of the mounting frame 8, and heat dissipation holes 14 are provided on the surfaces of the side panels 13. When in use, the heat dissipation holes 14 can improve the heat dissipation efficiency of the device.

[0022] Furthermore, mounting grooves 17 are provided on both sides of both ends of the mounting plate 16. When in use, the device can be easily installed in any standard cabinet indoors or outdoors through the mounting grooves 17, which is beneficial to improving the flexibility of the device.

[0023] Working principle of the utility model: through the installation slot 17, during use, the device can be easily installed in any standard cabinet indoors or outdoors, and through the inverter power supply unit 2, test control unit 3, matching resistance unit 4, and adaptive power supply unit 5, the device can be used for real-time monitoring of parameters such as equipment grounding resistance, soil resistivity, step voltage, contact voltage, etc. of traction substations and substations of the same type;

[0024] Through the provided radiator 7 and the heat dissipation holes 14, during use, the heat generated by the inverter power supply unit 2 will be absorbed by the radiator 7, and then the heat will be dissipated by the heat sink on the surface of the radiator 7. At this time, the fan 10 will drive the air around it to flow quickly, so that the hot air inside the box body 1 is discharged from the heat dissipation holes 14, thereby achieving rapid heat dissipation of the device, which is beneficial to improving the stability of the device.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: The drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An anti-interference grounding resistance online monitoring device, comprising a box (1), characterized in that: An inverter power supply unit (2) is fixedly mounted on one end of one side of the box (1), a test control unit (3) is fixedly mounted in the middle of one side of the box (1), a matching resistor unit (4) is fixedly mounted on the other end of one side of the box (1), an adaptor power supply unit (5) is fixedly mounted on the other end of one side of the box (1), and a high-frequency transformer unit (6) is fixedly mounted in the middle of the other side of the box (1); The box body (1) further comprises two mounting frames (8), a back plate (9), a mounting plate (16), and a cover plate (15); two ends of the two mounting frames (8) are respectively fixedly connected to two ends of the back plate (9) and the mounting plate (16); there are two cover plates (15), and the two cover plates (15) are respectively mounted on the upper surface and the lower surface of the box body (1).

2. The anti-interference grounding resistance online monitoring device according to claim 1 is characterized in that: A fan (10) is fixedly connected to one end of the surface of the back panel (9), a switch unit (11) is fixedly installed in the middle of the surface of the back panel (9), and a communication test unit (12) is fixedly connected to the other end of the surface of the back panel (9).

3. The anti-interference grounding resistance online monitoring device according to claim 1 is characterized in that: The inverter power supply unit (2), the test control unit (3), the matching resistance unit (4), the adaptor power supply unit (5), the high-frequency transformer unit (6), the fan (10), the switch unit (11), and the communication test unit (12) are all interconnected via wires.

4. The anti-interference grounding resistance online monitoring device according to claim 1 is characterized in that: A heat sink (7) is fixedly mounted on the surface of the inverter power supply unit (2), and a plurality of heat sinks are arranged at equal distances on both sides of the heat sink (7).

5. The anti-interference grounding resistance online monitoring device according to claim 1 is characterized in that: Side panels (13) are fixedly connected to the sides of the mounting frame (8), and surfaces of the side panels (13) are provided with heat dissipation holes (14).

6. The anti-interference grounding resistance online monitoring device according to claim 1 is characterized in that: Both sides of the two ends of the mounting plate (16) are provided with mounting grooves (17).

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