CN214707097U - Transformer neutral point grounding protection device convenient to overhaul - Google Patents

Abstract

The utility model discloses a transformer neutral point grounding protection device convenient for maintenance, which comprises a mounting substrate, wherein both ends of the mounting substrate are all connected with a sliding rod in a sliding way, one end of the sliding rod is provided with a fixed clamping groove, both side end faces of the sliding rod are provided with fixed blocks, one end face of each fixed block is provided with a sliding adjusting rod, the outer side of the sliding adjusting rod is slidably sleeved with a movable clamping groove plate, the outer side of the sliding adjusting rod is in threaded connection with a clamping bolt, the positions of both side end faces of the mounting substrate corresponding to the sliding rod are provided with sliding groove holes, so that the sliding rods are close to two telegraph poles at the inner sides of the sliding groove holes at both sides of the mounting substrate, then the movable clamping groove plates are sleeved on the outer sides of the sliding adjusting rod to slide, and then the clamping bolt is screwed down, thereby the grounding protection device can be rapidly mounted at the outer sides of the telegraph poles at both sides of the transformer when being mounted between different telegraph pole pitches, the installation distance can be adjusted quickly and simply, and the installation efficiency is improved.

Description

Transformer neutral point grounding protection device convenient to overhaul

Technical Field

The utility model relates to a transformer ground protection technical field specifically is a transformer neutral point ground protection device convenient to overhaul.

Background

At present, a hierarchical insulating transformer is mostly selected for a power grid in China, a main transformer neutral point generally adopts a partial grounding operation mode in a transformer substation with a plurality of transformers operating in parallel, but partial grounding operation is adopted in neutral points of 110KV and 220KV power transformers, and the stable operation and use of the transformers can be ensured through a neutral point grounding device;

however, in the conventional neutral grounding protection device, the installation distance is not changed, but when the neutral grounding protection device is installed in different areas, the installation is very inconvenient due to the different distances between the utility poles, which affects the installation efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a transformer neutral point protection device that connects convenient to overhaul can effectively solve the current neutral point protection device that connects that provides in the above-mentioned background art, and the installation distance is unchangeable, but when installing different ground districts, because of the different installations of the distance between the wire pole is very inconvenient, influences the problem of installation effectiveness.

In order to achieve the above object, the utility model provides a following technical scheme: a transformer neutral point grounding protection device convenient to overhaul comprises a mounting substrate, wherein a current transformer is fixedly mounted on one side of the top end of the mounting substrate, a lightning rod is fixedly mounted on the top end of the current transformer, a supporting insulator is fixedly mounted at the position, located on one side of the current transformer, of the top end of the mounting substrate, a lightning arrester is fixedly mounted at the position, located on one side of the supporting insulator, of the top end of the mounting substrate, and an isolating body is fixedly mounted on the other side of the top end of the mounting substrate;

the mounting structure comprises a mounting substrate, a sliding rod, a movable clamping bar, a clamping bolt, a sliding adjusting rod, a movable clamping groove plate, a clamping bolt and a clamping bolt, wherein the two ends of the mounting substrate are both connected with the sliding rod in a sliding manner, one end of the sliding rod is provided with a fixed clamping groove, the end surfaces of the two sides of the sliding rod are both fixedly provided with the fixed blocks, one end surface of the fixed block is fixedly provided with the sliding adjusting rod, the outer side of the sliding adjusting rod is sleeved with the movable clamping groove plate in a sliding manner, the outer side of the sliding adjusting rod is in threaded connection with the clamping bolt, the inner side of the movable clamping groove plate is provided with the movable hole at the position corresponding to the sliding adjusting rod, and the end surfaces of the two sides of the mounting substrate are provided with the sliding groove hole at the position corresponding to the sliding rod;

preferably, the end surfaces of the two sides of the movable clamping groove plate are fixedly connected with limit blocks at positions corresponding to the sliding adjusting rods, and the movable holes are formed in the inner sides of the limit blocks.

Preferably, four sliding adjusting rods are provided, and every two sliding adjusting rods are a group and are respectively installed on the end surfaces of the two sides of the installation base plate.

Preferably, one side of the movable clamping groove plate, which is close to the fixed clamping groove, is provided with a positioning groove, and the radius of the positioning groove is equal to that of the fixed clamping groove.

Preferably, mounting substrate's bottom fixed mounting has ground terminal, ground terminal's a side end face has seted up the ground connection hole, the inboard threaded connection in ground connection hole has the earth connection, mounting substrate's bottom is located ground terminal one side position department fixed mounting has the protective housing, the inboard sliding connection of protective housing has the rust-resistant shell of activity, the positive fixed mounting of the rust-resistant shell of activity has the gate lock, the top fixed mounting of the rust-resistant shell of activity has the box that absorbs water, the hole that absorbs water has been seted up to a terminal surface equidistance of the box that absorbs water, the bottom of the rust-resistant shell of activity corresponds position department with the earth connection and has seted up movable groove, the bottom fixedly connected with joint slider of the rust-resistant shell of activity.

Preferably, the ground connection hole has two, and two ground connection holes are seted up respectively in the both sides of ground terminal, the joint spout has been seted up to the inboard of protective housing and the joint slider position department that corresponds.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with mounting substrate, the slide bar, fixed slot, the fixed block, the slide adjusting lever, the activity draw-in groove board, clamping bolt, activity hole and slip slotted hole, make the slide bar be close to at the inboard to both sides wire pole of the slip slotted hole of mounting substrate both sides, then cup joint the activity draw-in groove board and slide in the outside of slide adjusting lever, then make the activity draw-in groove board be close to the wire pole, the snap ring that makes activity draw-in groove board and fixed slot form can slide in the outside of wire pole, thereby can adjust simple and conveniently highly, then tighten clamping bolt again, thereby with the quick outside of installing the wire pole in the transformer both sides of ground protection device, when installing between different wire pole intervals, simple regulation installation distance fast, installation effectiveness has been improved.

2. Be provided with the protective housing, the rust-resistant shell of activity, the floodgate lock, the box that absorbs water, the hole that absorbs water, activity groove and joint slider, the rust-resistant shell of activity is taken out from the inboard of protective housing, then fill into the inboard of the box that absorbs water with the silicone grease drier, then install the inboard of one of them ground connection hole with the earth connection, then aim at the activity groove and install the inboard of protective housing with the rust-resistant shell of activity again, can absorb protective housing moisture through the hole that absorbs water in the use, thereby prolong the life of earth connection, protect the national property.

3. Be provided with ground terminal, earthing hole and earth connection, after using one end time, can open the rust-resistant shell of activity, carry out the quick overhaul to the terminal of being joined in marriage, change rusty earth connection trampling, thereby can open the rust-resistant shell of activity simultaneously and change the silicone grease drier of inhaling water box inboard to can be inboard according to going into another empty earthing hole with new earth connection, then take off old earth connection again, thereby can not influence ground protection device's normal use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the installation structure of the sliding rod of the present invention;

fig. 3 is a schematic view of the installation structure of the protective shell of the present invention;

fig. 4 is a schematic view of the installation structure of the ground terminal of the present invention;

FIG. 5 is a schematic view of the installation structure of the water absorption box of the present invention;

reference numbers in the figures: 1. a mounting substrate; 2. a current transformer; 3. a lightning rod; 4. a support insulator; 5. a lightning arrester; 6. an isolator; 7. a slide bar; 8. fixing the clamping groove; 9. a fixed block; 10. a sliding adjusting rod; 11. a movable slot clamping plate; 12. clamping the bolt; 13. a movable hole; 14. a sliding slot hole; 15. a ground terminal; 16. a ground hole; 17. a ground line; 18. A protective shell; 19. a movable antirust shell; 20. a gate lock; 21. a water absorption box; 22. a water suction hole; 23. a movable groove; 24. and clamping the sliding block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-5, the utility model provides a technical scheme, a transformer neutral point grounding protection device convenient to overhaul, including mounting substrate 1, current transformer 2 is fixedly installed on one side of the top end of mounting substrate 1, lightning rod 3 is fixedly installed on the top end of current transformer 2, supporting insulator 4 is fixedly installed at the position of the top end of mounting substrate 1 located on one side of current transformer 2, lightning arrester 5 is fixedly installed at the position of the top end of mounting substrate 1 located on one side of supporting insulator 4, and isolator 6 is fixedly installed on the other side of the top end of mounting substrate 1;

the two ends of the mounting base plate 1 are both connected with sliding rods 7 in a sliding manner, one end of each sliding rod 7 is provided with a fixed clamping groove 8, the two side end faces of each sliding rod 7 are both fixedly provided with fixed blocks 9, one end face of each fixed block 9 is fixedly provided with a sliding adjusting rod 10, four sliding adjusting rods 10 are provided, every two sliding adjusting rods 10 are in a group and are respectively arranged on the two side end faces of the mounting base plate 1, the mounting distance can be conveniently and rapidly adjusted, the outer side of each sliding adjusting rod 10 is sleeved with a movable clamping groove plate 11 in a sliding manner, one side of each movable clamping groove plate 11, which is close to the fixed clamping groove 8, is provided with a positioning groove, the radius of the positioning groove is equal to that of the fixed clamping groove 8, the movable clamping groove plate is favorable for being attached to the outer side of a telegraph pole, the two side end faces of each movable clamping groove plate 11 are fixedly connected with limiting blocks at positions corresponding to the sliding adjusting rods 10, movable holes 13 are arranged on the inner sides of the limiting blocks, and the grounding devices are conveniently and rapidly mounted, the outer side of the sliding adjusting rod 10 is in threaded connection with a clamping bolt 12, the inner side of the movable clamping groove plate 11 is provided with a movable hole 13 at a position corresponding to the sliding adjusting rod 10, and the end surfaces of the two sides of the mounting base plate 1 are provided with sliding groove holes 14 at positions corresponding to the sliding rods 7;

the bottom end of the mounting substrate 1 is fixedly provided with a grounding terminal 15, one side end face of the grounding terminal 15 is provided with two grounding holes 16, the two grounding holes 16 are respectively arranged at two sides of the grounding terminal 15 to facilitate the rapid replacement of the grounding wire 17, the inner side of the grounding hole 16 is in threaded connection with the grounding wire 17, the bottom end of the mounting substrate 1 is fixedly provided with a protective shell 18 at a position at one side of the grounding terminal 15, the inner side of the protective shell 18 is in sliding connection with a movable antirust shell 19, the front side of the movable antirust shell 19 is fixedly provided with a gate lock 20, the top end of the movable antirust shell 19 is fixedly provided with a water absorption box 21, one end face of the water absorption box 21 is equidistantly provided with water absorption holes 22, the bottom end of the movable antirust shell 19 is provided with a movable groove 23 at a position corresponding to the grounding wire 17, the bottom end of the movable antirust shell 19 is fixedly connected with a clamping slide block 24, the inner side of the protective shell 18 is provided with a clamping slide groove at a position corresponding to the clamping slide block 24, the silica gel drying agent can be quickly replaced.

The utility model discloses a theory of operation and use flow: firstly, before the grounding protection device is installed on the outer side of a telegraph pole, an installer firstly unscrews the clamping bolt 12, pulls the sliding rod 7 to enable the sliding rod 7 to approach the telegraph pole from the inner side of the sliding groove holes 14 on the two sides of the installation base plate 1 to the two sides, then sleeves the movable clamping groove plate 11 on the outer side of the sliding adjusting rod 10 to slide, then enables the movable clamping groove plate 11 to approach the telegraph pole, then screws the clamping bolt 12 on the outer side of the sliding adjusting rod 10, enables the clamping ring formed by the movable clamping groove plate 11 and the fixed clamping groove 8 to slide on the outer side of the telegraph pole without screwing to the bottom, thereby adjusting the height, being simple and convenient, and screws the clamping bolt 12 after adjusting the proper height, thereby rapidly installing the grounding protection device on the outer sides of the telegraph poles on the two sides of a transformer, and rapidly and simply adjusting the installation distance when installing the grounding protection device between different telegraph pole pitches, the mounting efficiency is improved;

then, after the grounding protection device is installed, the gate lock 20 is opened, the movable antirust shell 19 is taken out from the inner side of the protective shell 18, then a silicone grease drying agent is filled into the inner side of the water absorption box 21, then the grounding wire 17 is installed into the inner side of one of the grounding holes 16, then the movable groove 23 is aligned with the grounding wire 17, the movable antirust shell 19 is installed into the inner side of the protective shell 18 again, and moisture in the protective shell 18 can be absorbed through the water absorption holes 22 in the using process, so that the service life of the grounding wire 17 is prolonged, and national property is protected;

finally, after a period of use, the part of the grounding wire 17 exposed in the air can be rusted, the movable antirust shell 19 can be opened to replace the silicone grease drying agent inside the water suction box 21, a new grounding wire 17 can be inserted into another empty grounding hole 16, and then the old grounding wire 17 can be taken down, so that the normal use of the grounding protection device cannot be influenced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a transformer neutral grounding protection device convenient to overhaul, includes mounting substrate (1), its characterized in that: a current transformer (2) is fixedly mounted on one side of the top end of the mounting substrate (1), a lightning rod (3) is fixedly mounted on the top end of the current transformer (2), a supporting insulator (4) is fixedly mounted at the position, located on one side of the current transformer (2), of the top end of the mounting substrate (1), a lightning arrester (5) is fixedly mounted at the position, located on one side of the supporting insulator (4), of the top end of the mounting substrate (1), and an isolating body (6) is fixedly mounted on the other side of the top end of the mounting substrate (1);

the equal sliding connection in both ends of mounting substrate (1) has slide bar (7), fixed slot (8) have been seted up to the one end of slide bar (7), the equal fixed mounting in both sides terminal surface of slide bar (7) has fixed block (9), the terminal surface fixed mounting of fixed block (9) has slide adjusting rod (10), movable draw-in groove board (11) have been cup jointed in the outside slip of slide adjusting rod (10), the outside threaded connection of slide adjusting rod (10) has clamping bolt (12), the inboard of activity draw-in groove board (11) corresponds position department with slide adjusting rod (10) and has seted up activity hole (13), the both sides terminal surface of mounting substrate (1) corresponds position department with slide bar (7) and has seted up slip slotted hole (14).

2. The transformer neutral grounding protection device convenient to overhaul according to claim 1, wherein: the both sides terminal surface of activity draw-in groove board (11) corresponds position department fixedly connected with stopper with slide adjusting lever (10), activity hole (13) are seted up in the inboard of stopper.

3. The transformer neutral grounding protection device convenient to overhaul according to claim 1, wherein: four sliding adjusting rods (10) are arranged, and every two sliding adjusting rods (10) are a group and are respectively arranged on the end faces of the two sides of the mounting base plate (1).

4. The transformer neutral grounding protection device convenient to overhaul according to claim 1, wherein: a positioning groove is formed in one side, close to the fixed clamping groove (8), of the movable clamping groove plate (11), and the radius of the positioning groove is equal to that of the fixed clamping groove (8).

5. The transformer neutral grounding protection device convenient to overhaul according to claim 1, wherein: a grounding terminal (15) is fixedly arranged at the bottom end of the mounting substrate (1), a grounding hole (16) is arranged on one side end face of the grounding terminal (15), the inner side of the grounding hole (16) is connected with a grounding wire (17) in a threaded manner, a protective shell (18) is fixedly arranged at the position of the bottom end of the mounting substrate (1) at one side of the grounding terminal (15), the inner side of the protective shell (18) is connected with a movable antirust shell (19) in a sliding way, the front surface of the movable antirust shell (19) is fixedly provided with a gate lock (20), a water absorption box (21) is fixedly arranged at the top end of the movable antirust shell (19), one end face of the water absorption box (21) is equidistantly provided with water absorption holes (22), the bottom end of the movable antirust shell (19) is provided with a movable groove (23) at the position corresponding to the grounding wire (17), the bottom end of the movable antirust shell (19) is fixedly connected with a clamping sliding block (24).

6. The transformer neutral grounding protection device convenient to overhaul according to claim 5, wherein: ground connection hole (16) have two, and two ground connection hole (16) are seted up respectively in the both sides of ground terminal (15), the joint spout has been seted up to the inboard of protective housing (18) and joint slider (24) corresponding position department.

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