Lightning protection device for transformer substation

Abstract

The utility model discloses a transformer station lightning protection device comprising a silicone rubber skirt sleeve, the upper end and the lower end of the silicone rubber skirt sleeve are fixedly provided with metal end heads, the surfaces of the metal end heads are fixedly provided with connecting terminals, the surfaces of the connecting terminals are provided with sealing grooves, and the sealing grooves are connected with the silicone rubber skirt sleeve. A fixing and packaging structure is spirally installed on the surface of the connecting terminal, a left silica gel sealing strip is fixedly installed on one side of a front end opening of the sealing groove, and a right silica gel sealing strip is fixedly installed on the other side of the front end opening of the sealing groove. According to the lightning protection device for the transformer substation, the lightning protection device for the transformer substation is simpler to install, and conductive connection points of the ground wire connecting ring sheet and the lightning protection device can be packaged after installation, so that the situation that the conductive performance is reduced due to the fact that the positions of the connection points are eroded by rainwater can be avoided; therefore, the effect of protecting the connection point of the lightning protection device and the ground wire connection ring sheet is better achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection devices, in particular to a lightning protection device for a transformer substation. Background Art

[0002] Lightning protection device is also called lightning arrester. Lightning arrester is a device that protects substation equipment from lightning shock waves. When the lightning shock wave transmitted to the substation along the line exceeds the protection level of the lightning arrester, the lightning arrester will discharge first and safely introduce the lightning current into the earth through a good conductor. The grounding device is used to limit the amplitude of the lightning voltage to below the lightning shock level of the protected equipment, so that the electrical equipment is protected. During the installation and use of lightning protection devices, most of them are installed and used outdoors. When connected, its terminals are inserted into the ground wire connection ring by bolts and tightened with nuts. This installation method is relatively troublesome and requires the screws to be completely removed. After removal, it is easy to fall and lose. After tightening, the connection point is easily corroded by rainwater, resulting in reduced conductivity or even non-conductivity. For this reason, we propose a substation lightning protection device. Utility Model Content

[0003] The main purpose of the utility model is to provide a lightning protection device for a substation, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A lightning protection device for a substation comprises a silicone rubber skirt sleeve, wherein metal ends are fixedly mounted on the upper and lower ends of the silicone rubber skirt sleeve, connection terminals are fixedly mounted on the surfaces of the metal ends, sealing grooves are provided on the surfaces of the connection terminals, and fixing and packaging structures are spirally mounted on the surfaces of the connection terminals.

[0006] Furthermore, a left silicone seal is fixedly installed on one side of the front port of the sealing groove, and a right silicone seal is fixedly installed on the other side of the front port of the sealing groove, and the left silicone seal and the right silicone seal are tightly attached to each other in a sealed state.

[0007] Furthermore, a screw hole is formed in a side screw hole of the connecting terminal.

[0008] Furthermore, the fixing and packaging structure includes a fixed screw, a transmission plate, a retaining ring, a pressure plate, a cover and a sealing ring. The surface of the transmission plate is provided with an insertion hole, the surface of the fixed screw passes through the spiral hole and is movably sleeved with a transmission plate installed, the surface of the fixed screw is located on both sides of the transmission plate and retaining rings are fixedly installed, the surface of the fixed screw is fixedly installed with a pressure plate near the end position, the upper surface of the transmission plate is fixedly installed with a cover, and the lower surface of the cover is fixedly installed with a sealing ring near the edge position.

[0009] Furthermore, the transmission sheet is movably mounted on the fixing screw by passing the fixing screw through the insertion hole.

[0010] Furthermore, the bottom of the sealing groove is in a semicircular concave state.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the lightning protection device for the substation is simpler to install, and after installation, the ground wire connection ring plate and the conductive connection point of the lightning protection device can be encapsulated, so that the connection point position can be prevented from being eroded by rainwater and reducing the conductivity, thereby better protecting the lightning protection device and the ground wire connection ring plate connection point. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a lightning protection device for a substation according to the utility model;

[0014] Figure 2 This is a partial view of a lightning protection device for a substation according to the utility model;

[0015] Figure 3 The utility model is a substation lightning protection device Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This is a cross-sectional view of the connection terminals of a lightning protection device for a substation according to the utility model.

[0017] In the figure: 1. Silicone rubber skirt; 2. Metal end; 3. Connecting terminal; 4. Sealing groove; 401. Left silicone seal; 402. Right silicone seal; 5. Fixing and packaging structure; 501. Fixing screw; 502. Transmission plate; 503. Retaining ring; 504. Pressing plate; 505. Sealing cover; 506. Sealing ring. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-4 As shown, a lightning protection device for a substation includes a silicone rubber skirt 1, a metal end 2 is fixedly installed at the upper end and the lower end of the silicone rubber skirt 1, a connection terminal 3 is fixedly installed on the surface of the metal end 2, a sealing groove 4 is opened on the surface of the connection terminal 3, and a fixing and packaging structure 5 is spirally installed on the surface of the connection terminal 3;

[0020] A left silicone seal 401 is fixedly installed on one side of the front port of the sealing groove 4, and a right silicone seal 402 is fixedly installed on the other side of the front port of the sealing groove 4, and the left silicone seal 401 and the right silicone seal 402 are tightly attached to each other in a sealed state; a screw hole on one side of the connecting terminal 3 is provided with a spiral hole; the fixing and packaging structure 5 includes a fixing screw 501, a transmission sheet 502, a retaining ring 503, a pressing sheet 504, a sealing cover 505 and a sealing ring 506, and an interlaced hole is provided on the surface of the transmission sheet 502, and the surface of the fixing screw 501 passes through one end of the spiral hole and is movably sleeved with the transmission sheet 502, and the surface of the fixing screw 501 is located on both sides of the transmission sheet 502. A retaining ring 503 is fixedly installed, a pressing piece 504 is fixedly installed on the surface of the fixing screw 501 near the end position, a cover 505 is fixedly installed on the upper surface of the transmission plate 502, and a sealing ring 506 is fixedly installed on the lower surface of the cover 505 near the edge position, wherein the sealing ring 506 is always in close contact with the upper surface of the connecting terminal 3, so that a better sealing effect can be achieved; the transmission plate 502 is movably installed with the fixing screw 501 through the through hole through the fixing screw 501; the bottom of the sealing groove 4 is in a semicircular recessed state, and the setting of the semicircular recessed state is to enable the ground wire connection ring plate to be embedded in and align the end of the pressing piece 504 with its aperture.

[0021] It should be noted that the utility model is a lightning protection device for a substation. During installation, the ground wire connection ring is directly inserted into the sealing groove 4, and the wiring lead-out end of the ground wire connection ring is embedded between the left silicone seal 401 and the right silicone seal 402 to clamp and seal. At this time, because the sealing groove 4 is just fitted with the ground wire connection ring, the end of the fixing screw 501 is just aligned with the middle hole of the ground wire connection ring after embedding. Then the staff only needs to twist the fixing screw 501 to push it into the sealing groove 4 to make the pressing plate 504 press the ground wire connection ring. At the same time, the transmission plate 502 will also drive the cover 505 to move to cover the upper port of the sealing groove 4, and seal it through the sealing ring 506. In this way, fixing and sealing can be carried out simultaneously, and after sealing, the ground wire connection ring and the connection point of the lightning protection device are effectively protected.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lightning protection device for a substation, characterized in that: The invention comprises a silicone rubber skirt (1), wherein metal ends (2) are fixedly mounted on the upper and lower ends of the silicone rubber skirt (1), connection terminals (3) are fixedly mounted on the surfaces of the metal ends (2), sealing grooves (4) are provided on the surfaces of the connection terminals (3), and fixing and packaging structures (5) are spirally mounted on the surfaces of the connection terminals (3).

2. A lightning protection device for a substation according to claim 1, characterized in that: A left silicone seal (401) is fixedly mounted on one side of the front end of the sealing groove (4), and a right silicone seal (402) is fixedly mounted on the other side of the front end of the sealing groove (4), and the left silicone seal (401) and the right silicone seal (402) are tightly attached to each other in a sealed state.

3. A lightning protection device for a substation according to claim 2, characterized in that: A screw hole is provided on one side screw hole of the connection terminal (3).

4. A lightning protection device for a substation according to claim 3, characterized in that: The fixing and packaging structure (5) comprises a fixing screw (501), a transmission sheet (502), a retaining ring (503), a pressing sheet (504), a sealing cover (505) and a sealing ring (506); a through hole is provided on the surface of the transmission sheet (502); a transmission sheet (502) is movably mounted on one end of the surface of the fixing screw (501) through the spiral hole; retaining rings (503) are fixedly mounted on both sides of the surface of the fixing screw (501) located on the transmission sheet (502); a pressing sheet (504) is fixedly mounted on the surface of the fixing screw (501) near the end; a sealing cover (505) is fixedly mounted on the upper surface of the transmission sheet (502); and a sealing ring (506) is fixedly mounted on the lower surface of the sealing cover (505) near the edge.

5. A lightning protection device for a substation according to claim 4, characterized in that: The transmission sheet (502) is movably mounted on the fixing screw (501) by the fixing screw (501) passing through the insertion hole.

6. A lightning protection device for a substation according to claim 5, characterized in that: The bottom of the sealing groove (4) is in a semicircular concave state.

Images