Electrical test grounding device for hydropower station

Abstract

The utility model relates to the technical field of hydropower station electrical tests, in particular to a hydropower station electrical test grounding device. The grounding pile is inserted into a bottom layer; the wiring base is arranged at the top of the grounding pile, and drainage grooves are formed in the two ends of the wiring base; the protection mechanism is in threaded connection with the side edge of the wiring seat and comprises a drainage cap; the isolation block is arranged at the bottom of the wire connecting seat; the fixing mechanism is arranged on the side wall of the isolation block; when the protective cover is installed, the exterior of the grounding wire is driven by the threading opening to continue to rotate and wind, so that the grounding wire is connected with the protective cover, the connection between the grounding wire and the connector is more stable, and after the bottom of the protective cover is in contact with the bottom of the threaded hole, the top of the threading opening and the top of the connecting base press the grounding wire tightly, so that the grounding wire can resist external wind power.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical test of hydropower station, concretely relates to a kind of electrical test grounding device of hydropower station. BACKGROUND

[0002] Electrical test is before electrical system, electrical equipment is put into use, to determine whether new installation or running electrical equipment can be normally put into operation, and the insulation performance, electrical characteristics and mechanical properties of each electrical equipment in electrical system are tested and verified according to the relevant provisions in standard, regulation, specification, so that the defects, errors and quality problems of electrical equipment during manufacturing and installation can be found and eliminated in time, and electrical system and electrical equipment can be normally put into operation, and electrical test grounding device is an instrument for testing the grounding performance of electrical equipment or system, which is usually used to evaluate the grounding resistance, grounding potential and quality of grounding system.

[0003] When electrical test is carried out in hydropower station, the water vapor and wind near the hydropower station are large, and the environment for electrical test in hydropower station is relatively poor, and the prior art cannot overcome the influence of water vapor and wind. SUMMARY

[0004] The utility model discloses to overcome the deficiency that the water vapor and wind near the hydropower station are large, and the environment for electrical test is relatively poor, and aims at providing a kind of electrical test grounding device of hydropower station, can reduce the influence of water vapor and reduce the influence of wind.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of electrical test grounding device of hydropower station, it include: the grounding pile of insertion bottom layer;Line seat is located at the top of grounding pile, and drainage groove is equipped at the both ends of line seat;Protective mechanism is screwed to the side of line seat, and protective mechanism includes drainage cap;Isolation block is located at the bottom of line seat;Fixed mechanism is located at the side wall of isolation block;

[0007] Isolation block includes hollow block and solid block, hollow block is fixedly arranged at the bottom of line seat, solid block is fixedly arranged at the bottom of hollow block, grounding pile penetrates solid block and hollow block, and grounding pile is fixedly connected with solid block and hollow block;

[0008] Fixed mechanism includes positioning disc, rotating rod, connecting block and pressurizing rod, rotating rod is rotatably connected to solid block and positioning disc at both ends respectively, connecting block is fixedly arranged at the side wall of hollow block, and pressurizing rod is screwed to connecting block.

[0009] The bottom of grounding pile is conical.

[0010] The connecting seat is provided with a threaded hole, and a connector is arranged in the threaded hole.

[0011] The protection mechanism further comprises a protection cover which is screwed to the threaded hole, and a drain cap is arranged on the top of the protection cover, and the bottom area of the drain cap is larger than the top area of the protection cover.

[0012] The protection cover is provided with a threading hole at the bottom, and the height of the threading hole is greater than the depth of the threaded hole.

[0013] The bottom of the positioning disc is provided with a conical ground nail.

[0014] Compared with the prior art, the utility model has the beneficial effects that when the protection cover is installed, the external part of the grounding wire is continuously rotated and wound by the threading hole, so that the grounding wire is connected with the protection cover, and the connection between the grounding wire and the connector is further stabilized, when the bottom of the protection cover contacts with the bottom of the threaded hole, the top of the threading hole and the top of the connecting seat press the grounding wire tightly, so that the grounding wire can resist the external wind force, when the wind blows near the hydropower station, the external part of the grounding wire is blown by the wind, and the connection between the grounding wire and the connector is not affected, and the protection cover can reduce the erosion of the water vapor on the grounding wire.

[0015] The solid block contacts with the ground, and the solid block also plays a role of counterweight, so that the device is stably installed on the ground and can resist the wind force on the side of the hydropower station, and the hollow block isolates the top of the solid block from the bottom of the connecting seat to isolate the water vapor rising path.

[0016] In use, the handle is rotated to move the threaded rod downward, the rotating rod is pressed downward, the positioning disc is anchored in the land, and the stability of the device is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Other features, objects and advantages of the utility model will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings.

[0018] Figure 1 is the structural schematic diagram of the utility model.

[0019] Figure 2 is the structural schematic diagram of the fixing mechanism in the utility model.

[0020] Among them: 1, grounding pile;2, connecting seat;21, drain groove;22, threaded hole;23, connector;3, protection mechanism;31, drain cap;32, protection cover;321, threading hole;4, isolation block;41, hollow block;42, solid block;

[0021] 5, fixing mechanism;6, equipment box;61, threading hole;62, observation window. 5, fixing mechanism;51, positioning disc;511, conical ground nail;52, rotating rod;53, connecting block;54, pressing rod. Detailed Implementation

[0022] The present invention will be further described in detail below through embodiments. The embodiments are only used to illustrate the present invention and do not limit the scope of the present invention.

[0023] like Figure 1 As shown, a grounding device for electrical testing of a hydropower station includes: a grounding stake 1 inserted into the bottom layer; a connecting seat 2 located at the top of the grounding stake 1, with drainage grooves 21 at both ends of the connecting seat 2; a protective mechanism 3 screwed to the side of the connecting seat 2, the protective mechanism 3 including a drainage cap 31; an isolation block 4 located at the bottom of the connecting seat 2; a fixing mechanism 5 located on the side wall of the isolation block 4; and an equipment box 6 fixed to the other side wall of the isolation block 4.

[0024] The bottom of the grounding stake 1 is conical. When installing this device, the grounding stake 1 is driven into the ground by tapping or pre-drilling. The grounding stake 1 conducts the electricity generated during the electrical test into the ground, ensuring the safe conduct of the test.

[0025] The connector 2 is provided with a threaded hole 22, which is a blind hole. A connector 23 is provided inside the threaded hole 22. The connector 23 is used to connect the grounding wire. The side wall of the connector 23 is provided with several recessed grooves. When connecting the grounding wire, the grounding wire is wrapped in the recessed grooves to prevent the grounding wire from sliding up and down and getting off the connector 23. After being wrapped, the grounding wire can rotate along the side wall of the recessed grooves without falling off.

[0026] The protective mechanism 3 also includes a protective cover 32, which is screwed into the threaded hole 22. After the grounding wire is wound, the protective cover 32 is screwed in. The bottom of the protective cover 32 has a wire-passing port 321. The outside of the grounding wire passes through the wire-passing port 321. The height of the wire-passing port 321 is greater than the depth of the threaded hole 22. When the protective cover 32 is installed, the outside of the grounding wire is driven by the wire-passing port 321 to continue to rotate and wind, so that the grounding wire is connected to the protective cover 32. This further makes the connection between the grounding wire and the connector 23 more stable. When the bottom of the protective cover 32 contacts the bottom of the threaded hole 22, the top of the wire-passing port 321 and the top of the connector 2 press the grounding wire tightly, so that the grounding wire can resist the interference of the external environment. For example, when the wind blows near the hydropower station, the wind blows the outside of the grounding wire, but it will not affect the connection between the grounding wire and the connector 23. At the same time, the protective cover 32 can reduce the corrosion of the grounding wire by water vapor.

[0027] A drainage cap 31 is located on top of the protective cover 32, and the bottom area of ​​the drainage cap 31 is larger than the top area of ​​the protective cover 32. During rainy weather or when the water level of the hydropower station is high, water will fall onto the drainage cap 31. The top surface of the drainage cap 31 slopes outward from the middle, and the water spreads from both sides of the drainage cap 31 and can flow into the connector 2. The connector 2 is provided with a drainage trough 21, which discharges the water to the ground, minimizing the chance of water flowing into the threaded hole 22.

[0028] In order to prevent the ground near the hydropower station from corroding the grounding wire, the connecting seat 2 is connected with the ground through the isolation block 4, the isolation block 4 includes a hollow block 41 and a solid block 42, the hollow block 41 is fixedly arranged at the bottom of the connecting seat 2, the solid block 42 is fixedly arranged at the bottom of the hollow block 41, the grounding pile 1 penetrates through the solid block 42 and the hollow block 41 and is fixedly connected with the solid block 42 and the hollow block 41, the solid block 42 is in contact with the ground, and the solid block 42 also plays a role of counterweight, so that the device is stably installed on the ground and can resist the wind force on the side of the hydropower station, and the hollow block 41 isolates the top of the solid block 42 from the bottom of the connecting seat 2.

[0029] In order to reduce the influence of the adverse environment around the hydropower station and the loose land on the stability of the device, as shown in Figure 2 The fixing mechanism 5 includes a positioning disc 51, a rotating rod 52, a connecting block 53 and a pressing rod 54, the two ends of the rotating rod 52 are rotatably connected to the solid block 42 and the positioning disc 51 respectively, the bottom of the positioning disc 51 is provided with a tapered ground nail 511, the tapered ground nail 511 extends into the ground, and the tapered ground nail 511 cooperates with the grounding pile 1 to enhance the anchoring force of the device to the ground and reduce the influence of soil erosion, the connecting block 53 is fixedly arranged on the side wall of the hollow block 41, the pressing rod 54 is screwed on the connecting block 53, the bottom of the pressing rod 54 is in contact with the top of the rotating rod 52, the top of the pressing rod 54 is a handle (circular) structure, the middle of the pressing rod 54 is a threaded rod, and the bottom of the pressing rod 54 is a spherical structure. In use, rotating the handle makes the threaded rod move downward, the rotating rod 52 is pressed downward, and the positioning disc 51 is anchored in the ground to enhance the stability of the device.

[0030] The long-term observation equipment for electrical tests is arranged in the equipment box 6, the equipment box 6 can protect the equipment and reduce the interference of the external environment, the rear wall of the equipment box 6 is provided with a wire passing port 61, the wire passing port 61 faces the connecting head 23, the grounding wire is connected with the connecting head 23 through the wire passing port 61, other holes are arranged on the equipment box 6 for connecting other equipment for electrical tests, and the front end of the equipment box 6 is provided with an observation window 62, through which the equipment can be observed and read.

Claims

1. A grounding device for electrical tests of a hydropower plant, characterized in that, The utility model relates to a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including:

2. The electrical grounding device for electrical tests of a hydropower plant according to claim 1, characterized in that, The utility model discloses a grounding pile and connecting wire fixing device, including:

3. The electrical grounding device for electrical tests of a hydropower plant according to claim 2, characterized in that, The utility model discloses a grounding pile and connecting wire fixing device, including:

4. The electrical grounding device for electrical testing of a hydroelectric power plant according to claim 3, characterized in that, The utility model discloses a grounding pile and connecting wire fixing device, including:

5. The electrical grounding device for electrical testing of a hydroelectric power plant according to claim 4, characterized in that, The utility model discloses a grounding pile and connecting wire fixing device, including:

6. The grounding device for electrical tests of hydropower plants according to any of claims 1 to 5, characterized in that, The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model discloses a grounding pile and connecting wire fixing device, including: The utility model disc

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