Substation grounding monitoring device

Abstract

The utility model discloses a transformer substation grounding monitoring device, and particularly relates to the technical field of power grid monitoring, which comprises a grounding cylinder, a conductive device is mounted at the bottom end of the grounding cylinder, a connecting cover is mounted at the top end of the grounding cylinder in a threaded manner, and a stabilizing assembly is arranged in the grounding cylinder. A wiring hole is formed in the side, away from the axis, of the top end of the connecting cover in a penetrating mode, and a monitor is installed at the top end of the connecting cover in a penetrating mode. According to the transformer station grounding monitoring device of the utility model, the grounding wire is connected with the conductive device through the arrangement of the stabilizing assembly, and the road holding force of the grounding cylinder can be enhanced during the connection process of the stabilizing assembly, so that the grounding cylinder is not easy to break away from the ground, and the stability and reliability of a grounding system are effectively ensured; it is ensured that the grounding line can play a role continuously and stably under various working conditions, and after the device is installed, the connection condition of the grounding line and the conductive device can be monitored through the monitor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power grid monitoring, especially a transformer substation grounding monitoring device. BACKGROUND

[0002] The transformer substation is the core hub of the power system and is responsible for the conversion and distribution of electric energy. The internal equipment is numerous and expensive. In order to ensure the safety of equipment and personnel, grounding protection is indispensable. The traditional grounding wire installation of the transformer substation adopts the form of screwing the contact head on the grounding bolt with a butterfly nut. However, the butterfly nut is prone to loosening due to vibration, moisture, corrosion, etc. during operation, which reduces the grounding reliability. Once a fault or lightning strike occurs, the equipment may be damaged due to poor grounding, and personnel may also face safety risks, making it difficult to meet the safety needs of modern transformer substations.

[0003] A transformer substation grounding device is disclosed in Chinese Patent No. CN218648152U, which includes a grounding needle fixedly connected inside the grounding needle, a sleeve connected outside the grounding needle, a grounding wire slidingly connected inside the sleeve, the grounding wire in contact with the grounding needle, an extrusion sleeve slidingly connected outside the grounding wire, the extrusion sleeve slidingly connected with the grounding needle, and a connecting mechanism provided on the sleeve and the grounding needle. By setting a grounding needle with a grounding needle, then the grounding wire is sleeved with the extrusion sleeve and the sleeve, the end of the grounding wire is inserted into the grounding needle and contacts the grounding needle, at this time the sleeve is sleeved outside the grounding needle, the sleeve and the grounding needle are connected through the connecting mechanism, and the extrusion sleeve is inserted into the grounding needle, the extrusion sleeve is deformed due to the reaction force of the grounding needle and tightly wraps the grounding wire, so that the grounding wire is not easy to loosen.

[0004] The device and similar devices will inevitably loosen over time due to environmental factors or material itself. Since the grounding device is installed underground, it is not easy to be detected in time if it loosens or corrodes. Once the grounding device loosens, its conductivity will be greatly reduced. In the event of lightning attack or electrical failure, the current cannot be effectively guided into the ground, which may cause serious damage to the equipment and even endanger the safety of the surrounding personnel, causing great impact and damage to the stable operation of the entire power system. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a transformer substation grounding monitoring device that can effectively solve the problems mentioned above.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a kind of substation ground monitoring device, including grounding cylinder, the bottom end of the grounding cylinder is equipped with electrically conductive device, the top end of the grounding cylinder is equipped with connecting cover with thread, the inside of the grounding cylinder is provided with stabilizing component, the side of the top end of the connecting cover away from the axis is penetrated and is equipped with wiring hole, the top end of the connecting cover is penetrated and is equipped with monitor.

[0008] Preferably, the stabilizing component includes an insulating rod, a connecting frame, and a plurality of sliding holes, the insulating rod is fixedly installed in the middle of the bottom end of the connecting cover, a conductive column is fixedly installed at the bottom end of the insulating rod, and the plurality of sliding holes are symmetrically and respectively penetrated on the outer surface of the grounding cylinder.

[0009] Preferably, the connecting frame is located at the lower side of the inner cavity of the grounding cylinder, a plurality of guide holes are symmetrically and respectively penetrated at both ends of the connecting frame along the vertical direction of the connecting frame, a plurality of horizontal pin rods are slidably installed on the inner cavity surface of the guide holes, respectively, and the end faces of the plurality of horizontal pin rods away from each other are extended outward through the plurality of sliding holes.

[0010] Preferably, a plurality of wedge blocks are fixedly installed on the opposite faces of the plurality of horizontal pin rods, respectively, a plurality of springs are sleeved on the outer surfaces of the plurality of horizontal pin rods, respectively, the first and last ends of the plurality of springs are abutted between the opposite faces of the plurality of wedge blocks and the vertical ends of the connecting frame, and the outer surface of the conductive column is clamped between the plurality of wedge blocks.

[0011] Preferably, the electrically conductive device includes an insulating partition, a winding wire slot, and a wiring terminal two, the insulating partition is fixedly installed on the lower side of the inner cavity surface of the grounding cylinder, a grounding pin is penetrated and installed at the top end of the insulating partition, the bottom end of the grounding pin is extended downward through the bottom end of the inner cavity of the grounding cylinder, and the connecting frame is fixedly installed on the upper side of the outer surface of the grounding pin.

[0012] Preferably, a conductive seat is fixedly installed at the top end of the grounding pin, the top end of the conductive seat is in contact with the bottom end of the conductive column, and the winding wire slot is provided on the outer surface of the conductive column.

[0013] Preferably, a power terminal one is fixedly installed on the lower side of the outer surface of the grounding pin, the wiring terminal two is fixedly installed on the upper side of the outer surface of the conductive column, and the power terminal one and the wiring terminal two are electrically connected with the monitor.

[0014] Compared with the prior art, the utility model have following beneficial effect: the utility model discloses through setting up stabilizing component to make the ground wire with the electrically conductive device be connected, can strengthen the ground cylinder's grip in the stabilizing component connection process, make the ground cylinder not easy from the ground come off, effectively guarantee the stability and reliability of grounding system, ensure that the ground line can continuously, stably play the function under various working conditions, when the device is installed, can monitor the connection situation of ground wire and electrically conductive device through monitor. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is whole cross section structure schematic diagram of the utility model;

[0017] Figure 3 It is cross section structure schematic diagram of the utility model in connecting cover;

[0018] Figure 4 It is cross section structure schematic diagram of the utility model in ground cylinder;

[0019] Figure 5 It is local connection structure schematic diagram of the utility model in electrically conductive device and stabilizing component.

[0020] In the drawing: 1, ground cylinder;2, connecting cover;3, electrically conductive device;31, insulating baffle;32, grounding needle;33, electrically conductive seat;34, winding groove;35, electric terminal one;36, wiring terminal two;4, monitor;5, stabilizing component;51, insulating rod;52, electrically conductive column;53, sliding hole;54, connecting frame;55, guide hole;56, horizontal pin;57, wedge block;58, spring;6, wiring hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0022] As Figures 1-5 Indicated, a kind of substation grounding monitoring device, including ground cylinder 1, ground cylinder 1 bottom end is equipped with electrically conductive device 3, ground cylinder 1 top end is equipped with connecting cover 2, ground cylinder 1 is equipped with stabilizing component 5, connecting cover 2 top end is away from the side of axis and is penetrated and is equipped with wiring hole 6, connecting cover 2 top end is penetrated and is equipped with monitor 4;

[0023] In the implementation of the scheme, first, the grounding wire is passed through the wire hole 6 on the connecting cover 2, then the grounding wire is stripped, and the grounding wire is wound on the stabilizing assembly 5 inside the grounding cylinder 1, then the connecting cover 2 is screwed on the upper end of the grounding cylinder 1, the grounding wire is connected with the conductive device 3 by arranging the stabilizing assembly 5, the grip of the grounding cylinder 1 is enhanced during the connection of the stabilizing assembly 5, the grounding cylinder 1 is not easy to be separated from the ground, the stability and reliability of the grounding system are effectively ensured, and the grounding line can continuously and stably play a role under various working conditions, and the monitor 4 can be used to monitor the connection of the grounding wire and the conductive device 3 after the device is installed.

[0024] Specifically, the stabilizing assembly 5 includes an insulating rod 51, a connecting frame 54 and a plurality of sliding holes 53, the insulating rod 51 is fixedly installed at the middle of the bottom end of the connecting cover 2, a conductive column 52 is fixedly installed at the bottom end of the insulating rod 51, and the plurality of sliding holes 53 are respectively and symmetrically arranged on the outer surface of the grounding cylinder 1;

[0025] The connecting frame 54 is located at the lower side of the inner cavity of the grounding cylinder 1, a plurality of guide holes 55 are respectively and symmetrically arranged at the two ends of the connecting frame 54 in the vertical direction, a plurality of horizontal pin rods 56 are respectively and slidably installed in the inner cavity surfaces of the guide holes 55, and the end faces of the plurality of horizontal pin rods 56 away from each other are extended outward through the plurality of sliding holes 53;

[0026] A plurality of wedge blocks 57 are respectively and fixedly installed on the opposite faces of the plurality of horizontal pin rods 56, a plurality of springs 58 are respectively and sleeved on the outer surfaces of the plurality of horizontal pin rods 56, the first and last ends of the plurality of springs 58 are respectively and abutted between the opposite faces of the plurality of wedge blocks 57 and the vertical ends of the connecting frame 54, and the outer surface of the conductive column 52 is clamped between the plurality of wedge blocks 57;

[0027] The connecting cover 2 is covered on the top end of the grounding cylinder 1, then the conductive column 52 at the middle of the bottom end of the connecting cover 2 is passed through the plurality of symmetric wedge blocks 57, the symmetric wedge blocks 57 are extruded by the outer surface of the conductive column 52, the plurality of horizontal pin rods 56 are respectively and slid outward through the plurality of sliding holes 53, and thus when the plurality of horizontal pin rods 56 slide outward in the horizontal direction, the contact range of the grounding cylinder 1 with the ground can be increased, and the grounding cylinder 1 has better grip;

[0028] The top end of the conductive column 52 is in contact with the connecting cover 2 through the insulating rod 51, so that the connecting cover 2 is prevented from conducting electricity in the conductive state, and the plurality of wedge blocks 57 are all made of insulating materials, so that unnecessary conduction phenomenon is avoided when the conductive column 52 is in contact therewith.

[0029] Specifically, the conductive device 3 includes an insulating partition plate 31, a winding groove 34 and a terminal 36, the insulating partition plate 31 is fixedly installed on the lower side of the surface of the inner cavity of the grounding cylinder 1, the top end of the insulating partition plate 31 is provided with a grounding needle 32 penetratingly installed on the axis, the bottom end of the grounding needle 32 extends downward through the bottom end of the inner cavity of the grounding cylinder 1, and a connecting frame 54 is fixedly installed on the upper side of the outer surface of the grounding needle 32;

[0030] The top end of the grounding needle 32 is fixedly provided with a conductive seat 33, the top end of the conductive seat 33 is in contact with the bottom end of a conductive column 52, and the winding groove 34 is formed in the outer surface of the conductive column 52;

[0031] The lower side of the outer surface of the grounding needle 32 is fixedly provided with a power terminal 35, the upper side of the outer surface of the conductive column 52 is fixedly provided with a terminal 36, and the power terminal 35 and the terminal 36 are electrically connected with a monitor 4;

[0032] After the power line passes through the wiring hole 6, a section of the shell of the power line is wound on the winding groove 34 formed in the outer surface of the conductive column 52, and the power line wound on the outer surface of the conductive column 52 is fixed by the tension of the plurality of springs 58 pushing the plurality of wedge blocks 57;

[0033] In use, when the grounding point is subjected to external current, the current is conducted to the conductive seat 33 at the bottom end of the conductive column 52 through the conductive column 52, and is guided outward by the grounding needle 32 at the bottom end of the conductive seat 33 and enters the ground;

[0034] It is worth mentioning here that the monitor 4 mainly comprises a signal transmitter, a battery, wires and a fuse, the positive and negative poles of the battery are electrically connected with the signal transmitter through the wires, the middle ends of the two wires are respectively connected with the power terminal 35 and the terminal 36 in series, and the signal transmitter continuously transmits a specific signal to the terminal in a normal operation when the grounding device is connected perfectly and is in a power-on state. Once the grounding device is abnormally connected, for example, the power terminal 35 or the terminal 36 is loose, the grounding wire is disconnected or the like, the signal transmitter will immediately interrupt the signal transmission due to the loss of power supply, and the terminal can accurately infer that the connection of the grounding device is abnormal through real-time monitoring and judgment of the signal receiving condition, so that corresponding measures are taken in time for repair and maintenance, thereby effectively guaranteeing the reliability and safety of the grounding system and providing a solid guarantee basis for the stable operation of the entire electrical equipment;

[0035] The signal transmitter used in the scheme is a prior art, and the specific model thereof is DMX512.

[0036] It should be particularly pointed out that the specific installation mode of the monitor 4, the replacement mode of the circuit connection and the control method all belong to the conventional design, and the utility model will not be described in detail.

[0037] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A substation grounding monitoring device comprising a grounding cylinder (1), characterized in that: The bottom end of the grounding cylinder (1) is provided with a conductive device (3), the top end of the grounding cylinder (1) is provided with a connecting cover (2) through screwing, the inside of the grounding cylinder (1) is provided with a stabilizing assembly (5), the top end of the connecting cover (2) is provided with a wire hole (6) penetratingly formed on one side away from the axis, and the top end of the connecting cover (2) is provided with a monitor (4) penetratingly installed.

2. The substation grounding monitoring device of claim 1, wherein: The stabilizing assembly (5) comprises an insulating rod (51), a connecting frame (54) and a plurality of sliding holes (53), the insulating rod (51) is fixedly installed at the middle part of the bottom end of the connecting cover (2), the bottom end of the insulating rod (51) is fixedly installed with a conductive column (52), and the plurality of sliding holes (53) are penetratingly formed on the outer surface of the grounding cylinder (1) in pairs of symmetry.

3. The substation grounding monitoring device of claim 2, wherein: The connecting frame (54) is located at the lower side of the inner cavity of the grounding cylinder (1), a plurality of guide holes (55) are penetratingly formed on the connecting frame (54) in pairs of symmetry at the two ends along the vertical direction of the connecting frame (54), a plurality of horizontal pin rods (56) are slidingly installed on the inner cavity surfaces of the guide holes (55) respectively, and the end faces of the plurality of horizontal pin rods (56) away from each other are extended outward through the plurality of sliding holes (53).

4. The substation grounding monitoring device of claim 3, wherein: A plurality of wedge-shaped blocks (57) are fixedly installed on the opposite faces of the plurality of horizontal pin rods (56) respectively, a plurality of springs (58) are sleeved on the outer surfaces of the plurality of horizontal pin rods (56) respectively, the first and last ends of the plurality of springs (58) are abutted between the opposite faces of the plurality of wedge-shaped blocks (57) and the vertical ends of the connecting frame (54) respectively, and the outer surface of the conductive column (52) is clamped between the plurality of wedge-shaped blocks (57).

5. A substation grounding monitoring device according to claim 4, characterized in that: The conductive device (3) comprises an insulating partition plate (31), a winding wire groove (34) and a wire terminal two (36), the insulating partition plate (31) is fixedly installed on the lower side of the inner cavity surface of the grounding cylinder (1), the top end of the insulating partition plate (31) is penetratingly installed with a grounding pin (32) at the axis, the bottom end of the grounding pin (32) is extended downward through the bottom end of the inner cavity of the grounding cylinder (1), and the connecting frame (54) is fixedly installed on the upper side of the outer surface of the grounding pin (32).

6. A substation grounding monitoring device according to claim 5, characterized in that: The top end of the grounding pin (32) is fixedly installed with a conductive seat (33), the top end of the conductive seat (33) is in contact with the bottom end of the conductive column (52), and the winding wire groove (34) is formed on the outer surface of the conductive column (52).

7. A substation grounding monitoring device according to claim 6, characterized in that: The lower side of the outer surface of the grounding pin (32) is fixedly installed with a power terminal one (35), the wire terminal two (36) is fixedly installed on the upper side of the outer surface of the conductive column (52), and the power terminal one (35) and the wire terminal two (36) are electrically connected with the monitor (4).

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