CN204855569U - Support of experimental arrester - Google Patents

Abstract

The utility model discloses a support of experimental arrester belongs to electric power test appurtenance field, include the leg, place the platform, be located a ground connection platform of placing the platform below, place platform, ground connection platform and landing leg fixed connection, placing the bench and being provided with the through -hole of placing the arrester, the ground connection platform includes clamping piece and the fixed plate that is provided with the circular arc, and the tight position of clamp that clamping piece and circular arc department on the fixed plate constitute is located the through -hole under, and the circular arc department of fixed plate is provided with the conducting strip that links to each other through the wire with ground. The utility model discloses can stabilize to such an extent that place the arrester, improve the efficiency of software testing of arrester, guarantee the security the when arrester is tested.

Description

A bracket for testing lightning arresters

technical field

The utility model relates to a bracket, in particular to a bracket used for testing lightning arresters, and belongs to the field of electric power testing auxiliary tools.

Background technique

Lightning arresters are devices that protect equipment in substations from lightning shock waves. When the lightning shock wave introduced into the substation along the line exceeds the protection level of the arrester, the arrester discharges first, and the lightning current is safely introduced into the ground through a good conductor, and the grounding device is used to limit the amplitude of the lightning voltage to the lightning shock level of the protected equipment, so that Electrical equipment is protected.

Before installing lightning arresters to electrical equipment in substations, it is necessary to test whether the lightning arresters to be installed are qualified. The surge arrester needs to be tested with multiple parameters before use, among which the leakage current test of the surge arrester is a DC high voltage test. During this test, a safe distance must be ensured between the arrester and the bottom surface. At present, the most effective way for the staff to test the arrester is to place the arrester on an insulating stool or wrap it around an insulating rod. These methods make the placement of the arrester extremely unstable during the test, and accidents of the arrester falling are prone to occur, which not only affects the test results and testing efficiency, and threaten the personal safety of staff.

Utility model content

The technical problem to be solved by the utility model is to provide a support for testing the arrester, which can stably place the arrester, improve the test efficiency of the arrester, and ensure the safety of the arrester during testing.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A support for testing lightning arresters, comprising legs, a placement platform, and a grounding platform located below the placement platform, the placement platform, the grounding platform and the legs are fixedly connected, the placement platform is provided with through holes for placing lightning arresters, the grounding platform includes The clamping piece and the fixing plate with arcs, the clamping position formed by the clamping piece and the arc on the fixing plate is located directly below the through hole, and the arc of the fixing plate is provided with a conductive sheet connected to the ground through a wire .

The further improvement of the technical solution of the utility model lies in that the clamping part includes a clamping head, a pull rod, and an elastic member arranged between the clamping head and the pull rod, and the front end of the clamping head is provided with a circular arc that matches the circular arc on the fixing plate. .

The further improvement of the technical solution of the utility model lies in that the elastic member is a compression spring.

The further improvement of the technical solution of the utility model lies in that: the placing platform is provided with a plurality of through holes, and the grounding platform is provided with clamping positions corresponding to the number of through holes.

The further improvement of the technical solution of the utility model lies in that: the through hole is a tapered hole.

Owing to having adopted above-mentioned technical scheme, the technical progress that the utility model obtains is:

A support for a test arrester, which is divided into two layers: a placement platform and a grounding platform. The two functions of placement and grounding are separated. There are through holes for stably placing the arrester on the placement platform. The clamping position of the grounding platform is located directly below the placement. The clamping part is set to clamp the part of the arrester that needs to be grounded, so that the arrester is well grounded and the grounding reliability is high. The setting of the legs makes the grounding platform a certain distance away from the ground, and the safety is high during the test.

The clamping part of the utility model is set as a pull-out type, and the clamping part and the fixed plate are in a state of contact and clamping under normal conditions through the elastic part. Partly put it into the clamping position of the grounding platform, release the pull rod, and the chuck returns to the clamping state closed with the fixed plate under the thrust of the elastic member. While placing the arrester is simple and convenient, it can also make the arrester grounding effect good.

The utility model is provided with a plurality of placing positions and clamping positions, and can simultaneously complete a plurality of grounding tests, thereby improving the test efficiency. The through hole of the utility model is set as a tapered hole, which corresponds to the arc shape of the lower part of the arrester, so that the arrester is more stable when placed, and the safety during the test is guaranteed.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of grounding station of the present utility model;

Fig. 3 is a sectional view of the placement platform of the present utility model;

Among them, 1. Placement platform; 2. Grounding platform; 3. Through hole; 4. Fixed plate; 5. Conductive sheet; 6. Pull rod; 7. Elastic member; 8. Clamping member; Chuck head; 11, beam.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

A support for a test arrester, as shown in FIG. 1 , includes a support leg 9, a placement platform 1, and a grounding platform 2. The placement platform 1, the grounding platform 2 and the support leg 9 are fixedly connected, and the grounding platform 2 and the support leg 9 are insulated. The surface of the placing platform 1 is arranged horizontally and the surface of the plate is flat, and the surface of the placing platform 1 is provided with a through hole 3 passing through the placing platform 1, and the through hole 3 is a tapered hole.

A grounding platform 2 is provided below the placing platform 1, and the grounding platform includes a clamping part 8 and a fixed plate 4 provided with a circular arc. Between the elastic piece 7, the elastic piece 7 can choose to compress the spring. The grounding platform 2 also includes a crossbeam 11. The crossbeam 11 is provided with a rod position for the retractable rod 6, and the rod position restricts the sliding direction of the pull rod 6 to linear sliding, and the limit of the pull rod 6 can be set as a slide rail limit. It can also be set to pass through the through hole on the crossbeam 11 to limit.

The front end of the clamping head 10 is provided with a circular arc, and the circular arc on the clamping head 10 cooperates with the circular arc on the fixed plate 4. When the two circular arcs close together, the grounding part at the lower end of the arrester can be clamped. The circular arc of the clamp head 10 and the circular arc of the fixing plate 4 form a clamping position, and the clamping position is located directly below the through hole 3 . The distance between the through hole 3 and the clamping position is set according to the specification and size of the lightning arrester to be tested.

The arc of the fixed plate 4 is provided with a conductive sheet 5 connected to the ground, and the conductive sheet 5 is connected to the grounding wire. The grounding wire can be arranged in the test bracket, or can be directly grounded through an open wire.

A plurality of through holes 3 are provided on the placing platform 1 , and clamping positions corresponding to the number of the 3 through holes are provided on the grounding platform 2 .

The using method of the utility model:

The bracket of the test lightning arrester of the utility model is used to place the lower part of the lightning arrester corresponding to the through hole 3, and when the grounding part at the lower end of the lightning arrester is above the clamping position, the pull rod 6 is pulled outward, and the chuck at the front end of the pull rod 6 is connected to the clamping position. The arc of the fixed plate is separated, the grounding part of the arrester is placed in the clamping position, the pull rod 6 is released, and under the thrust of the elastic part, the chuck returns to the position where it closes with the arc of the fixed plate, and the arc of the chuck and the fixed plate The circular arc of the fixed plate hugs and clamps the grounding part of the arrester, and the conductive sheet at the arc of the fixing plate connects the grounding part to the ground. Then connect the power-on device to the upper end of the arrester, and the staff pushes the arrester bracket, opens the power-on device, and powers up the arrester.

Claims (5)

1. test the support of lightning arrester for one kind, it is characterized in that: comprise supporting leg (9), mounting table (1), be positioned at the ground connection platform (2) of mounting table (1) below, mounting table (1), ground connection platform (2) is fixedly connected with supporting leg (9), described mounting table (1) is provided with the through hole (3) placing lightning arrester, ground connection platform (2) comprises clamping element (8) and is provided with the fixed head (4) of circular arc, the clamping position that clamping element (8) forms with the circular arc place on fixed head (4) is positioned at immediately below through hole (3), the circular arc place of fixed head (4) is provided with the conducting strip (5) that wire is connected to the ground.

2. a kind of support testing lightning arrester according to claim 1, it is characterized in that: clamping element (8) comprises dop (10), pumping rod (6), is arranged on elastic component (7) between dop (10) and pumping rod (6), and the front end of dop (10) is provided with the circular arc coordinated with the circular arc on fixed head (4).

3. a kind of support testing lightning arrester according to claim 2, is characterized in that: elastic component (7) is Compress Spring.

4. a kind of support testing lightning arrester according to claim 1, is characterized in that: mounting table (1) is provided with multiple through hole (3), ground connection platform (2) is provided with the clamping position corresponding with through hole (3) number.

5. a kind of support testing lightning arrester according to claim 1, is characterized in that: through hole (3) is bellmouth.