CN210577028U - Isolating switch group for double-bus cabinet - Google Patents
Isolating switch group for double-bus cabinet Download PDFInfo
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- CN210577028U CN210577028U CN201921572353.3U CN201921572353U CN210577028U CN 210577028 U CN210577028 U CN 210577028U CN 201921572353 U CN201921572353 U CN 201921572353U CN 210577028 U CN210577028 U CN 210577028U
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Abstract
The utility model discloses an isolator group for two generating lines cabinets, through the fixed first isolation sword of the generating line that converges of square frame structure and second isolation sword, when needs separating brake, first isolation sword, second are kept apart the sword and are all held in accommodation space, and when needs combined floodgate, first isolation sword, second are kept apart the sword and can be rotated around the generating line that converges respectively, until the generating line that converges perpendicularly to connect first generating line and second generating line in the two generating lines respectively. The embodiment of the utility model provides a pair of isolator group for two bus cabinets, when a set of generating line is qualified for the next round of competitions troubleshooting, can fast switch over to another group generating line, can continue the guarantee to user's power supply when overhauing, and the generating line that converges has back font bilayer structure, first isolation sword becomes back font structure with the generating line that converges promptly, the second is kept apart the sword and is constituteed back font structure with the generating line that converges, compare in traditional individual layer copper bus, the radiating effect is better, more be favorable to the safe operation of equipment.
Description
Technical Field
The utility model belongs to the technical field of electric power, especially, relate to an isolator group for two bus cabinets.
Background
12kV metal armored middle-placed withdrawable switchgear (a middle-placed cabinet for short) is high-voltage switchgear widely used in a 10kV distribution network of a power system at present. However, with the continuous development of power systems, the reliability of power supply is continuously improved, which has higher requirements on power equipment.
As shown in fig. 1, the novel high-voltage switch gear is a novel high-voltage switch gear and is characterized by having a double-bus structure. Compared with the traditional switchgear (middle cabinet), the switchgear mainly has the following advantages:
traditional switchgear is single bus structure, in case the bus breaks down and needs to overhaul, and the engineering volume is big, consuming time and wasting power. And all the user outgoing lines on the bus are powered off. The novel high-voltage switch equipment shown in the attached drawing 1 has a double-bus structure, and when a group of bus fault is overhauled, the novel high-voltage switch equipment can be quickly switched to another group of buses, so that the power supply to a user can be continuously ensured while the maintenance is carried out.
However, to realize this function, a set of isolation switches is needed and can be realized according to a certain program operation. As a new type of high voltage switchgear, no well-established disconnector is currently available.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an isolator group for two bus cabinets to solve above-mentioned technical problem.
To achieve the purpose, the utility model adopts the following technical proposal:
an isolating switch group for a double-bus cabinet comprises a bus bar, a first isolating knife and a second isolating knife;
the bus bar is of a square frame structure, and the middle part of the square frame structure is provided with an accommodating space for accommodating the first isolating knife and the second isolating knife;
the static end of the first isolation knife is rotationally connected with the inner side of the square frame structure, and the static end of the second isolation knife is rotationally connected with the inner side of the square frame structure;
when the first isolation knife is switched on, the first isolation knife is perpendicular to the bus bar, and when the first isolation knife is switched off, the first isolation knife is accommodated in the accommodating space;
when the second isolation knife is switched on, the second isolation knife is perpendicular to the bus bar, and when the second isolation knife is switched off, the second isolation knife is accommodated in the accommodating space.
Optionally, as an optional technical solution of the present invention, the first isolation knife includes two first blades arranged in parallel, a first spring bearing is fixedly disposed between the two first blades, and a first protruding strip is respectively disposed on the two first blades;
a first clamping space for clamping a first bus joint is formed between the two first convex strips and the first spring bearing;
the second isolation knife comprises two second blades which are arranged in parallel, a second spring bearing is fixedly arranged between the two second blades, and a second convex strip is respectively arranged on the two second blades;
and a second clamping space for clamping a second bus joint is formed between the two second convex strips and the second spring bearing.
Optionally, as an optional technical solution of the present invention, the disconnecting switch group for a double-bus cabinet further includes a first adaptor and a second adaptor;
the two first blades are rotatably connected with the inner side of the square frame structure through the first rotating piece;
the two second blades are rotatably connected with the inner side of the square frame structure through the second adaptor.
Optionally, as an optional technical solution of the present invention, two first blades are respectively provided with a first operation hole for fixedly connecting an external first operation rod;
and the two second blades are respectively provided with a second operation hole for fixedly connecting an external second operation rod.
Optionally, as the utility model discloses an optional technical scheme, set up a mounting hole that is used for connecting the circuit breaker and goes up the contact seat on one side of busbar.
Optionally, as the utility model discloses an optional technical scheme, two fixed orificess that are used for installing the insulator are seted up to one side of busbar.
Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has:
the embodiment of the utility model provides a pair of isolator group for two generating lines cabinets, through the fixed first isolation sword of the generating line that converges of square frame structure and second isolation sword, when needs separating brake, first isolation sword, second are kept apart the sword and are all held in accommodation space, and when needs combined floodgate, first isolation sword, second are kept apart the sword and can be rotated around the generating line that converges respectively, until perpendicular generating line that converges to connect first generating line and second generating line in the two generating lines respectively. The embodiment of the utility model provides a pair of isolator group for two bus cabinets when a set of generating line fault repair of being qualified for the next round of competitions, can fast switch over to another group's generating line, can continue the guarantee to user's power supply when overhauing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 creative efforts.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a structural diagram of an isolation switch group for a double-bus cabinet according to an embodiment of the present invention;
fig. 2 is another structural diagram of an isolation switch group for a double-bus cabinet according to an embodiment of the present invention;
fig. 3 is another structural diagram of an isolation switch group for a double-bus cabinet according to an embodiment of the present invention.
Illustration of the drawings:
a bus bar 11, a first isolation knife 12 and a second isolation knife 13;
an accommodating space 111, a mounting hole 112, and a fixing hole 113;
a first blade 121, a first spring bearing 122, a first convex strip 123, a first clamping space 124, a first adapter 125, and a first operation hole 126;
a second blade 131, a second spring bearing 132, a second protruding strip 133, a second clamping space 134, a second adaptor 135, and a second operating hole 136.
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.
Please refer to fig. 1 to 3.
The embodiment provides an isolating switch group for a double-bus-bar cabinet, which comprises a bus bar 11, a first isolating knife 12 and a second isolating knife 13. Wherein the first isolation knife 12 and the second isolation knife 13 have the same structure.
Specifically, the bus bar 11 is a square frame structure, and includes two long frames and two short frames, and an accommodating space 111 for accommodating the first isolation knife 12 and the second isolation knife 13 is provided in the middle of the square frame structure, that is, the middle surrounded by the two long frames and the two short frames.
The static end of the first isolation knife 12 is rotatably connected with the inner side of the square frame structure, and the static end of the second isolation knife 13 is rotatably connected with the inner side of the square frame structure.
When the first isolation knife 12 needs to be switched on, the moving end of the first isolation knife 12 is rotated, the first isolation knife 12 rotates around the bus bar 11 with the static end as a fulcrum, and until the first isolation knife 12 is perpendicular to the bus bar 11, the first isolation knife 12 is connected with a first bus bar in the double bus bars, so that switching on is achieved.
Similarly, when the second isolation knife 13 needs to be switched on, the moving end of the second isolation knife 13 is rotated, the second isolation knife 13 rotates around the bus bar 11 with the static end as a fulcrum, and until the second isolation knife 13 is perpendicular to the bus bar 11, the second isolation knife 13 is connected with the second bus bar in the double bus bars, so that the switching-on is realized.
When the first isolating blade 12 is opened, the first isolating blade 12 is completely accommodated in the accommodating space 111.
When the second isolating blade 13 is opened, the second isolating blade 13 is completely accommodated in the accommodating space 111.
Therefore, the embodiment of the utility model provides a pair of isolator group for two bus cabinets, when a set of generating line fault repair of being qualified for the next round of competitions, through this isolator group, can fast switch over to another group's generating line, can continue the guarantee to user's power supply when overhauing.
It should be noted that the isolation switch group for the double-bus bar cabinet provided by this embodiment may be used not only in a single-phase power supply network, but also in a two-phase or multi-phase (e.g., three-phase) power supply network.
Further, the first isolation knife 12 includes two first blades 121 disposed in parallel, a first spring bearing 122 is fixedly disposed between the two first blades 121, and first protruding strips 123 are respectively disposed on the two first blades 121. A first clamping space 124 for clamping the first busbar joint is formed between the two first protruding strips 123 and the first spring bearing 122. Therefore, when the first disconnecting switch 12 is closed, the joint of the first bus bar of the double bus bars is fixed within the first clamping space 124.
Similarly, the second isolation knife 13 includes two second blades 131 arranged in parallel, a second spring bearing 132 is fixedly arranged between the two second blades 131, and the two second blades 131 are respectively provided with a second protruding strip 133; a second holding space 134 for holding the second busbar joint is formed between the two second projecting strips 133 and the second spring bearing 132. Therefore, when the second disconnecting blade 13 is closed, the joint of the second busbar of the double busbars is fixed in the second clamping space 134.
Therefore, the bus bar 11 has a double-layer structure in a shape of Chinese character 'hui', namely, the first isolation knife 12 and the bus bar 11 form a structure in a shape of Chinese character 'hui', and the second isolation knife 13 and the bus bar 11 form a structure in a shape of Chinese character 'hui', so that the bus bar has a better heat dissipation effect and is more favorable for the safe operation of equipment compared with a traditional single-layer copper bus bar.
As an alternative to this embodiment, two first blades 121 are rotatably connected to the inside of the frame structure by first adapters 125; the two second blades 131 are rotatably connected to the inside of the frame structure by means of a second adapter 135. Specifically, the first adapter 125 and the second adapter 135 each include a bolt, a spring washer, and the like.
As an alternative mode of the present embodiment, the two first blades 121 are respectively provided with a first operation hole 126 for fixedly connecting an external first operation rod (not shown in the figure); the two second blades 131 are respectively provided with a second operation hole 136 for fixedly connecting an external second operation rod (not shown). Thus, the outer first and second operating levers are used to control the first and second isolation knives 12 and 13, respectively.
As an optional manner of this embodiment, a mounting hole 112 for connecting a contact seat on the circuit breaker is formed on one side of the bus bar 11, so as to realize the electrical connection between the bus bar 11 and the circuit breaker.
As an alternative of this embodiment, one side of the bus bar 11 is opened with two fixing holes 113 for mounting insulators. Specifically, the isolating switch group can be fixed on the electric cabinet by installing an insulator.
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," "… …," "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 (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; 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 (6)
1. An isolating switch group for a double-bus cabinet is characterized by comprising a bus bar, a first isolating knife and a second isolating knife;
the bus bar is of a square frame structure, and the middle part of the square frame structure is provided with an accommodating space for accommodating the first isolating knife and the second isolating knife;
the static end of the first isolation knife is rotationally connected with the inner side of the square frame structure, and the static end of the second isolation knife is rotationally connected with the inner side of the square frame structure;
when the first isolation knife is switched on, the first isolation knife is perpendicular to the bus bar, and when the first isolation knife is switched off, the first isolation knife is accommodated in the accommodating space;
when the second isolation knife is switched on, the second isolation knife is perpendicular to the bus bar, and when the second isolation knife is switched off, the second isolation knife is accommodated in the accommodating space.
2. The isolating switch group for the double-bus cabinet as claimed in claim 1, wherein the first isolating blade comprises two first blades arranged in parallel, a first spring bearing is fixedly arranged between the two first blades, and a first convex strip is respectively arranged on the two first blades;
a first clamping space for clamping a first bus joint is formed between the two first convex strips and the first spring bearing;
the second isolation knife comprises two second blades which are arranged in parallel, a second spring bearing is fixedly arranged between the two second blades, and a second convex strip is respectively arranged on the two second blades;
and a second clamping space for clamping a second bus joint is formed between the two second convex strips and the second spring bearing.
3. The group of disconnectors for a double busbar cabinet according to claim 2, further comprising a first transition piece and a second transition piece;
the two first blades are rotatably connected with the inner side of the square frame structure through the first rotating piece;
the two second blades are rotatably connected with the inner side of the square frame structure through the second adaptor.
4. The group of disconnectors for a double busbar cabinet according to claim 2, characterized in that:
the two first blades are respectively provided with a first operating hole for fixedly connecting an external first operating rod;
and the two second blades are respectively provided with a second operation hole for fixedly connecting an external second operation rod.
5. The group of disconnectors for a double bus bar cabinet according to claim 1, characterized in that:
and one side of the bus bar is provided with a mounting hole for connecting the contact seat on the circuit breaker.
6. The group of disconnectors for a double bus bar cabinet according to claim 1, characterized in that:
and two fixing holes for mounting insulators are formed in one side of the bus bar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921572353.3U CN210577028U (en) | 2019-09-20 | 2019-09-20 | Isolating switch group for double-bus cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921572353.3U CN210577028U (en) | 2019-09-20 | 2019-09-20 | Isolating switch group for double-bus cabinet |
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| CN210577028U true CN210577028U (en) | 2020-05-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601002A (en) * | 2019-09-20 | 2019-12-20 | 广东电网有限责任公司 | Isolating switch group for double-bus cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601002A (en) * | 2019-09-20 | 2019-12-20 | 广东电网有限责任公司 | Isolating switch group for double-bus cabinet |
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