CN210156812U - Grounding system - Google Patents
Grounding system Download PDFInfo
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- CN210156812U CN210156812U CN201921344050.6U CN201921344050U CN210156812U CN 210156812 U CN210156812 U CN 210156812U CN 201921344050 U CN201921344050 U CN 201921344050U CN 210156812 U CN210156812 U CN 210156812U
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- copper bar
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Abstract
The utility model relates to a power equipment technical field specifically discloses a grounding system, include: the 10kV high-voltage switch cabinet comprises a cabinet body, wherein an accommodating cavity is formed in the cabinet body, switch equipment is arranged at the upper part of the accommodating cavity, a copper bar group is arranged at the lower part of the accommodating cavity, and the switch equipment is connected with an outgoing cable through the copper bar group; a grounding screw hole is formed in the copper bar group; the bolt type grounding rod comprises an insulating rod and a metal head fixedly connected with one end of the insulating rod, the metal head comprises a grounding bolt in threaded connection with the grounding screw hole, and the grounding bolt is coaxial with the insulating rod. The utility model provides a grounding system both can accomplish the ground connection operation in narrow and small space, can satisfy safe distance's relevant requirement again.
Description
Technical Field
The utility model relates to a power equipment technical field especially relates to a grounding system.
Background
The 10kV high-voltage switch cabinet is very important electrical equipment in a power system, and the current 10kV metal closed switch complete equipment is widely applied to all transformer substations in the power system. The work of the inner part of the transformer substation, such as the overhaul of a grounding switch at the line side of a 10kV line, needs to install a grounding wire at the line side of a switch cabinet.
The grounding methods of the 10kV high-voltage switch cabinet generally include two methods:
(1) the ground connection is made through an insulated operating rod. However, generally, cables in a 10kV high-voltage switch cabinet are thick, and the operating space reserved for an insulating operating rod between the cables is limited, so that the grounding operation is difficult to perform by using a traditional operating rod;
(2) an operator uses the insulating glove to install the grounding bolt connected with the grounding wire by using a wrench. This needs operating personnel to bore in the cubical switchboard, and on the one hand installs inefficiency, seriously influences operating efficiency, and on the other hand, safe distance does not satisfy the requirement that 10kV is more than or equal to 0.7 meter in the operation process, especially for some annular line, constitutes very big threat to operating personnel's personal safety.
Therefore, a grounding scheme is needed, which can not only complete grounding operation in a narrow space, but also meet the related requirements of safe distance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a grounding system both can accomplish the ground connection operation in narrow and small space, can satisfy safe distance's relevant requirement again.
To achieve the above object, the present invention provides a grounding system, including:
the 10kV high-voltage switch cabinet comprises a cabinet body, wherein an accommodating cavity is formed in the cabinet body, switch equipment is arranged at the upper part of the accommodating cavity, a copper bar group is arranged at the lower part of the accommodating cavity, and the switch equipment is connected with an outgoing cable through the copper bar group; a grounding screw hole is formed in the copper bar group;
the bolt type grounding rod comprises an insulating rod and a metal head fixedly connected with one end of the insulating rod, the metal head comprises a grounding bolt in threaded connection with the grounding screw hole, and the grounding bolt is coaxial with the insulating rod.
Preferably, the copper bar group comprises an A-phase copper bar, a B-phase copper bar and a C-phase copper bar, and the A-phase copper bar, the B-phase copper bar and the C-phase copper bar are respectively provided with one grounding screw hole.
Preferably, the A-phase copper bar, the B-phase copper bar and the C-phase copper bar all comprise copper bar main bodies, a through hole is formed in each copper bar main body, and internal threads are formed on the inner wall of the through hole to form the grounding screw hole.
Preferably, the A-phase copper bar, the B-phase copper bar and the C-phase copper bar respectively comprise a copper bar main body and a nut with the inner diameter matched with the grounding bolt, and the nut is fixedly connected to any side surface of the copper bar main body.
Preferably, the nut is connected with the copper bar main body in a welding mode.
Preferably, the insulating rod is a telescopic rod, and the minimum length of the insulating rod is not less than 0.7 m.
Preferably, the metal head is further connected with a grounding wire.
Preferably, the metal head further includes a circular portion, and the circular portion is connected to the ground wire.
Preferably, the bolt type grounding rod further comprises a metal hook, the metal hook comprises a buckling seat and a buckling ring, one end of the grounding wire is fixedly connected with the buckling seat, and the buckling ring is buckled with the circular ring part.
The beneficial effects of the utility model reside in that: the grounding system can complete grounding operation in a narrow space and meet the related requirements of safe distance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a 10kV high-voltage switch cabinet provided in the first embodiment;
fig. 2 is a schematic structural view of a bolt-type grounding rod according to an embodiment;
fig. 3 is a schematic structural diagram of a 10kV high-voltage switch cabinet provided in the second embodiment.
In the figure:
1. a 10kV high-voltage switch cabinet; 101. a cabinet body; 102. a switching device; 103. a phase of copper bar; 104. b phase copper bar; 105. c phase copper bar; 106. a ground screw hole; 107. a nut;
2. a bolt-type ground rod; 201. an insulating rod; 202. a metal head; 2021. a ground bolt; 2022. a circular ring part; 203. a metal hook; 2031. a buckle seat; 2032. a retaining ring; 204. and a ground lead.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
Referring to fig. 1 to 2, the present embodiment provides a grounding system, which includes a 10kV high voltage switch cabinet 1 and a bolt type grounding rod 2.
The 10kV high-voltage switch cabinet 1 comprises a cabinet body 101, wherein an accommodating cavity is formed in the cabinet body 101, switch equipment 102 is arranged at the upper part of the accommodating cavity, a copper bar group is arranged at the lower part of the accommodating cavity, and the switch equipment 102 is electrically connected with an outgoing cable through the copper bar group; and a grounding screw hole 106 is arranged in the copper bar group. The bolted grounding rod 2 comprises an insulating rod 201 and a metal head 202 fixedly connected with one end of the insulating rod 201, wherein the metal head 202 comprises a grounding bolt 2021 for being in threaded connection with the grounding screw hole 106, and the grounding bolt 2021 is coaxial with the insulating rod 201.
Specifically, after the grounding screw holes 106 are formed in the copper bar group, the bolt type grounding rod 2 is rotated outside the 10kV high-voltage switch cabinet 1 so that the grounding bolt 2021 is screwed into the grounding screw holes 106, and the grounding operation of the 10kV high-voltage switch cabinet 1 can be realized, which is simple and convenient. It should be noted that, because the grounding bolt 2021 is coaxial with the insulating rod 201, the insulating rod 201 only needs to rotate in the grounding process, and does not need to swing up and down and left and right, so that the requirement on the operation space is greatly reduced, the operation efficiency is greatly improved, and the operation risk is greatly reduced.
In this embodiment, the copper bar group includes an a-phase copper bar 103, a B-phase copper bar 104, and a C-phase copper bar 105, and the a-phase copper bar 103, the B-phase copper bar 104, and the C-phase copper bar 105 are all provided with one of the grounding screw holes 106. Specifically, the a-phase copper bar 103, the B-phase copper bar 104, and the C-phase copper bar 105 are each electrically connected to the switching device 102 through a conductive cable.
Preferably, the a-phase copper bar 103, the B-phase copper bar 104 and the C-phase copper bar 105 all include copper bar main bodies, a through hole is formed in the copper bar main bodies, and an internal thread is formed on the inner wall of the through hole to form the grounding screw hole 106. It can be understood that, generally, the copper bar main body is a component already provided in the existing 10kV high-voltage switch cabinet 1, and can be directly drilled and tapped on the copper bar main body to form the grounding screw hole 106, which is simple and convenient.
Preferably, the insulation rod 201 is a telescopic rod, and the minimum length of the insulation rod 201 is not less than 0.7 m to meet the requirement of a safety distance.
Preferably, the metal head 202 further comprises a circular portion 2022. The bolt-type ground rod 2 further comprises a metal hook 203 in a key ring shape, the metal hook 203 comprises a buckling seat 2031 and a buckling ring 2032, one end of the ground wire 204 is fixedly connected with the buckling seat 2031, and the buckling ring 2032 is buckled with the circular ring part 2022. It is understood that, in order to prevent the ground wire 204 from interfering when the insulating rod 201 is rotated, the metal hook 203 may be removed from the annular portion 2022, and the metal hook 203 may be fastened back to the annular portion 2022 after the ground bolt 2021 is screwed into the ground screw hole 106.
The embodiment provides a grounding system, which can not only finish grounding operation in a narrow space, but also meet the related requirements of safe distance.
Example two
Referring to fig. 3, the present embodiment provides a grounding system, which is different from the first embodiment in that:
the a-phase copper bar 103, the B-phase copper bar 104 and the C-phase copper bar 105 respectively comprise a copper bar main body and a nut 107, the inner diameter of the nut is matched with the grounding bolt 2021, and the nut 107 is fixedly connected to any side surface of the copper bar main body.
It should be noted that, when the thickness of copper tablet main part is great, the requirement to drilling tool is higher, can consider directly to install nut 107 additional on the copper tablet main part this moment, and convenient and fast reduces the required equipment cost of transformation.
Preferably, the nut 107 is welded to the copper bar body.
The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.
When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "under," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented, such as by rotation through 90 degrees or other orientations, and is explained with the spatially relative descriptors herein.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. An earth system, comprising:
the 10kV high-voltage switch cabinet comprises a cabinet body, wherein an accommodating cavity is formed in the cabinet body, switch equipment is arranged at the upper part of the accommodating cavity, a copper bar group is arranged at the lower part of the accommodating cavity, and the switch equipment is connected with an outgoing cable through the copper bar group; a grounding screw hole is formed in the copper bar group;
the bolt type grounding rod comprises an insulating rod and a metal head fixedly connected with one end of the insulating rod, the metal head comprises a grounding bolt in threaded connection with the grounding screw hole, and the grounding bolt is coaxial with the insulating rod.
2. The grounding system of claim 1, wherein the copper bar group comprises an A-phase copper bar, a B-phase copper bar and a C-phase copper bar, and the A-phase copper bar, the B-phase copper bar and the C-phase copper bar are respectively provided with the grounding screw hole.
3. The grounding system of claim 2, wherein the A-phase copper bar, the B-phase copper bar and the C-phase copper bar comprise copper bar bodies, each copper bar body is provided with a through hole, and inner threads are arranged on inner walls of the through holes to form the grounding screw holes.
4. The grounding system as claimed in claim 2, wherein the a-phase copper bar, the B-phase copper bar and the C-phase copper bar each include a copper bar main body and a nut having an inner diameter matching the grounding bolt, and the nut is fixedly connected to either side surface of the copper bar main body.
5. The grounding system of claim 4, wherein the nut is welded to the copper busbar body.
6. The grounding system of claim 1, wherein the insulating rod is a telescoping rod, the insulating rod having a minimum length of no less than 0.7 meters.
7. The grounding system of claim 1, wherein a ground lead is further connected to the metal header.
8. The grounding system of claim 7, wherein the metal header further comprises a circular portion, the circular portion being connected to the ground lead.
9. The grounding system of claim 8, wherein the bolted grounding bar further comprises a metal hook, the metal hook comprises a fastening seat and a retaining ring, one end of the grounding wire is fixedly connected with the fastening seat, and the retaining ring is fastened with the annular portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921344050.6U CN210156812U (en) | 2019-08-19 | 2019-08-19 | Grounding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921344050.6U CN210156812U (en) | 2019-08-19 | 2019-08-19 | Grounding system |
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| CN210156812U true CN210156812U (en) | 2020-03-17 |
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| CN201921344050.6U Active CN210156812U (en) | 2019-08-19 | 2019-08-19 | Grounding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336214A (en) * | 2019-08-19 | 2019-10-15 | 广东电网有限责任公司 | Earthed system |
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2019
- 2019-08-19 CN CN201921344050.6U patent/CN210156812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336214A (en) * | 2019-08-19 | 2019-10-15 | 广东电网有限责任公司 | Earthed system |
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