Transformer neutral point grounding gap complete equipment

Abstract

The utility model discloses a transformer neutral point grounding gap complete device, which belongs to the technical field of transformer application and comprises a support column, a bottom plate is arranged on the support column, isolating switches are sequentially arranged on the bottom plate, a sliding groove is arranged in the bottom plate, an adjusting assembly is rotatably arranged in the sliding groove, and the adjusting assembly is arranged on the bottom plate. The adjusting assembly comprises a threaded rod and sliding blocks, one end of the threaded rod is rotationally connected with the sliding groove, the sliding blocks are symmetrically arranged on the threaded rod, the sliding blocks are slidably connected with the sliding groove, and the two sliding blocks are provided with a lightning arrester and a current transformer respectively; and the top end of the isolating switch is connected with the top end of the lightning arrester through a copper bar. According to the transformer neutral point grounding gap complete device adopting the structure, the distance between the two discharge gap rods can be adjusted through the adjusting assembly, so that the device can adapt to the requirements of different voltage grades and adapt to the change of the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer application, in particular to a transformer neutral point grounding gap complete set device. Background Art

[0002] The transformer neutral point grounding gap set is a kind of power protection equipment, which is mainly used in the transformer neutral point grounding system to ensure that when an overvoltage occurs (such as lightning strike, power system failure, etc.), the overvoltage can be quickly and effectively guided to the ground, thereby protecting the safe operation of the transformer and the power grid. The transformer neutral point grounding gap set plays an important protective role in the power system, especially when dealing with overvoltage conditions, it can effectively protect the transformer and related equipment and ensure the safe and stable operation of the power grid. The gap set is usually composed of electrical equipment such as disconnectors, lightning rods, discharge gaps and current transformers.

[0003] China Authorization Announcement No. CN201733072U discloses a neutral point gap protection device for a power transformer. Through the structure of the isolating switch, lightning arrester, current transformer and discharge gap, although the height of the discharge gap can be adjusted, the distance between the two electrode rods cannot be adjusted. The fixed distance of the discharge gap will cause the device to be unable to adapt to the needs between different voltage levels and the changes in environmental conditions (such as temperature, humidity, air pressure, etc.), resulting in a decrease in protection performance or malfunction. Therefore, it is necessary to provide a complete set of transformer neutral point grounding gap devices that solve the above problems. Utility Model Content

[0004] The utility model aims to provide a transformer neutral point grounding gap complete set device, which can adjust the distance between two discharge gap rods through adjusting components so that the device can adapt to the needs between different voltage levels and adapt to environmental changes.

[0005] To achieve the above-mentioned purpose, the utility model provides a complete set of transformer neutral point grounding gap devices, including a pillar, a base plate is arranged on the pillar, and isolating switches are arranged on the base plate in sequence, a slide groove is arranged inside the base plate, and an adjustment component is rotatably arranged in the slide groove, and the adjustment component includes a threaded rod and a slider, one end of the threaded rod is rotatably connected to the slide groove, the slider is symmetrically arranged on the threaded rod, and the slider is slidably connected to the slide groove, a lightning arrester and a current transformer are respectively arranged on the two sliders, and the top of the isolating switch is connected to the top of the lightning arrester through a copper busbar.

[0006] Preferably, the adjustment assembly also includes bevel gear 1, bevel gear 2 and a rotating handle, bevel gear 1 is fixedly mounted on the other end of the threaded rod, bevel gear 2 is meshingly connected to bevel gear 1, a rotating shaft is fixedly arranged above bevel gear 2, and the top end of the rotating shaft passes through the base plate and is fixedly connected to the rotating handle.

[0007] Preferably, a discharge gap rod 1 is arranged at the top of the arrester, an adjustment rod is arranged above the current transformer, and a discharge gap rod 2 is arranged on the adjustment rod.

[0008] Preferably, the adjusting rod includes a fixed rod and a movable rod, the fixed rod is arranged above the current transformer, the movable rod is sleeved inside the fixed rod, a plurality of through holes are arranged at equal distances on the movable rod, a fixing hole is arranged at the top position of the fixed rod, and the movable rod is fixedly connected to the fixed rod by a fixing bolt.

[0009] Preferably, the arrester is a zinc oxide arrester.

[0010] Preferably, a counter is provided above the base plate, and the counter is connected to the lightning arrester.

[0011] Preferably, the threaded rod is provided with two threads in opposite directions, and the two sliding blocks are respectively adapted to the threads in the two directions.

[0012] Preferably, a scale is provided on the bottom plate near the slider.

[0013] Therefore, the utility model adopts a transformer neutral point grounding gap complete set of the above structure, which has the following advantages: the distance between the two discharge gap rods can be adjusted by adjusting the assembly so that the device can adapt to the needs between different voltage levels and adapt to environmental changes; at the same time, the adjusting rod can also adjust the height of the discharge gap rod two to adapt to different needs.

[0014] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of a transformer neutral point grounding gap complete set device of the utility model;

[0016] Figure 2 It is a cross-sectional view of the adjustment component of the utility model;

[0017] Figure 3 It is a right side view of the adjusting rod of the utility model;

[0018] Reference numerals

[0019] 1. Pillar; 2. Base plate; 3. Disconnector; 4. Slide; 5. Adjustment assembly; 51. Threaded rod; 52. Slider; 53. Bevel gear one; 54. Bevel gear two; 55. Rotating handle; 6. Lightning arrester; 7. Current transformer; 8. Discharge gap rod one; 9. Adjustment rod; 91. Fixed rod; 92. Moving rod; 93. Fixing bolt; 10. Discharge gap rod two; 11. Counter; 12. Scale. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] Example

[0023] like Figure 1-3 As shown, the utility model provides a complete set of transformer neutral point grounding gap device, including a support 1, a bottom plate 2 is arranged on the support 1, and an isolating switch 3 is arranged on the bottom plate 2 in sequence, and one end of the isolating switch 3 is grounded. A chute 4 is arranged inside the bottom plate 2, and an adjustment component 5 is rotatably arranged in the chute 4. A discharge gap rod 1 8 is arranged on the top of the lightning arrester 6, and an adjustment rod 9 is arranged above the current transformer 7, and a discharge gap rod 2 10 is arranged on the adjustment rod 9. A discharge gap is formed between the discharge gap rod 1 8 and the discharge gap rod 2 10.

[0024] The adjusting assembly 5 includes a threaded rod 51 and a slider 52. One end of the threaded rod 51 is rotatably connected to the slide groove 4. The slider 52 is symmetrically arranged on the threaded rod 51. The slider 52 is a T-shaped slider. The slider 52 is slidably connected to the slide groove 4. The two sliders 52 are respectively provided with a lightning arrester 6 and a current transformer 7. The top of the isolating switch 3 is connected to the top of the lightning arrester 6 through a copper busbar.

[0025] The adjusting rod 9 includes a fixed rod 91 and a moving rod 92. The fixed rod 91 is arranged above the current transformer 7, and the moving rod 92 is sleeved inside the fixed rod 91. The moving rod 92 is slidably connected to the inside of the fixed rod 91. A plurality of through holes are arranged at equal distances on the moving rod 92, and a fixing hole is arranged at the top position of the fixed rod 91. The moving rod 92 is fixedly connected to the fixed rod 91 by a fixing bolt 93. When it is necessary to adjust the height of the discharge gap rod 10, the fixing bolt 93 is taken out, and then the height of the moving rod 92 is adjusted. When it is adjusted to a suitable height, the fixing bolt 93 is tightened to fix the discharge gap rod 10.

[0026] The adjustment assembly 5 further includes a bevel gear 1 53, a bevel gear 2 54 and a rotating handle 55. The bevel gear 1 53 is fixedly mounted on the other end of the threaded rod 51. The bevel gear 2 54 is meshed and connected with the bevel gear 1 53. A rotating shaft is fixedly arranged above the bevel gear 2 54. The rotating shaft passes through the bottom plate 2 and is fixedly connected with the rotating handle 55. The threaded rod 51 is provided with two threads in opposite directions, and the two sliders 52 are respectively adapted to the threads in the two directions.

[0027] The rotating handle 55 can be turned to drive the bevel gear 2 54 to rotate, and the bevel gear 2 54 drives the threaded rod 51 to rotate through the bevel gear 1 53, so that the two sliders 52 move in opposite directions, thereby adjusting the distance between the discharge gap rod 1 8 and the discharge gap rod 2 10.

[0028] A scale 12 is provided on the bottom plate 2 near the slider 52 for measuring the distance between the two discharge gap rods. The distance between the left or right ends of the two sliders 52 is the distance between the two discharge gap rods. The two sliders 52 are of the same size. The arrester 6 and the current transformer 7 are arranged at the center of the slider 52. The fixing rod 91 is arranged at the center of the current transformer 7.

[0029] The arrester is a zinc oxide arrester 6. A counter 11 is arranged above the bottom plate 2, and the counter 11 is connected to the arrester 6 for recording the number of actions and the current of the arrester 6.

[0030] The specific connection methods of each part all adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0031] When the transformer neutral point grounding gap complete set of the present embodiment is in use, the rotating handle 55 is turned to adjust the distance between the discharge gap rod 1 8 and the discharge gap rod 2 10. At the same time, the setting of the scale 12 can accurately control the distance between the discharge gap rod 1 8 and the discharge gap rod 2 10, and then the height of the discharge gap rod 2 10 is adjusted by the adjusting rod 9.

[0032] Therefore, the utility model adopts a transformer neutral point grounding gap complete set of the above structure, and the distance between the two discharge gap rods can be adjusted by adjusting the components so that the device can adapt to the needs between different voltage levels and adapt to environmental changes; at the same time, the adjusting rod can also adjust the height of the discharge gap rod two to adapt to different needs.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A transformer neutral point grounding gap complete set, characterized by: It includes a pillar, a base plate is arranged on the pillar, and an isolating switch is arranged on the base plate in sequence, a slide groove is arranged inside the base plate, and an adjusting component is rotatably arranged in the slide groove, and the adjusting component includes a threaded rod and a slider, one end of the threaded rod is rotatably connected to the slide groove, the slider is symmetrically arranged on the threaded rod, and the slider is slidably connected to the slide groove, a lightning arrester and a current transformer are respectively arranged on the two sliders, and the top of the isolating switch is connected to the top of the lightning arrester through a copper busbar.

2. A transformer neutral point grounding gap complete set according to claim 1, characterized in that: The adjustment assembly also includes bevel gear 1, bevel gear 2 and a rotating handle. Bevel gear 1 is fixedly mounted on the other end of the threaded rod, bevel gear 2 is meshingly connected with bevel gear 1, a rotating shaft is fixedly arranged above bevel gear 2, and the top end of the rotating shaft passes through the bottom plate and is fixedly connected to the rotating handle.

3. A transformer neutral point grounding gap complete set according to claim 1, characterized in that: A discharge gap rod 1 is arranged on the top of the arrester, an adjustment rod is arranged above the current transformer, and a discharge gap rod 2 is arranged on the adjustment rod.

4. A transformer neutral point grounding gap complete set according to claim 3, characterized in that: The adjusting rod includes a fixed rod and a movable rod, the fixed rod is arranged above the current transformer, the movable rod is sleeved inside the fixed rod, a plurality of through holes are arranged at equal distances on the movable rod, a fixing hole is arranged at the top position of the fixed rod, and the movable rod is fixedly connected to the fixed rod by a fixing bolt.

5. The transformer neutral point grounding gap complete set according to claim 1, characterized in that: The lightning arrester is a zinc oxide lightning arrester.

6. A transformer neutral point grounding gap complete set according to claim 5, characterized in that: A counter is arranged above the bottom plate, and the counter is connected to the lightning arrester.

7. The transformer neutral point grounding gap complete set according to claim 1, characterized in that: The threaded rod is provided with two threads in opposite directions, and the two sliding blocks are respectively matched with the threads in the two directions.

8. The transformer neutral point grounding gap complete set according to claim 1, characterized in that: A scale is arranged on the bottom plate near the sliding block.

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