CN210053091U - Insulation structure of electrical cabinet - Google Patents
Insulation structure of electrical cabinet Download PDFInfo
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- CN210053091U CN210053091U CN201920779548.9U CN201920779548U CN210053091U CN 210053091 U CN210053091 U CN 210053091U CN 201920779548 U CN201920779548 U CN 201920779548U CN 210053091 U CN210053091 U CN 210053091U
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- stationary contact
- insulating
- contact box
- circuit breaker
- box body
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Abstract
The utility model discloses an insulation structure of an electrical cabinet, which comprises three connecting rows, wherein one end of each connecting row is connected with one phase contact part of one electrical component, the other end of each connecting row is connected with the other electrical component, and in the three connecting rows, at least two connecting rows are provided with steering parts to enlarge the insulation distance between two adjacent connecting rows; therefore, the positions of all electrical components do not need to be changed, the space is effectively utilized, the interphase insulation distance between adjacent connecting rows can be increased as much as possible in the same space, the space is saved, the operation and maintenance cost is saved, the applicable occasions are enlarged, the reliability and the stability of power supply are improved, and the potential safety hazard is reduced.
Description
Technical Field
The utility model relates to an electrical cabinet, especially an insulation system and applied this insulation system's regulator cubicle.
Background
An electrical cabinet adopting air insulation is characterized in that each electrical component in the electrical cabinet can be electrically connected through a connecting row, namely A, B, C three-phase contacts can be led out from the electrical component, one end of the connecting row is connected with one phase of the contacts, the other end of the connecting row is connected with other electrical components, A, B, C three-phase contacts are arranged in rows or columns, air breakdown is easy to occur between adjacent connecting rows due to high voltage, and therefore, an insulating partition plate is arranged between the adjacent connecting rows in the conventional insulating structure, so that the creepage distance is increased through the insulating partition plate;
in an environment with high humidity, the insulating partition board is affected with damp, and the electric arc can still creep and puncture along the wet surface of the insulating partition board; the insulating mode of insulating barrier compares in the insulating mode of simple increase air distance and wants poor, but the simple increase air distance, then need arrange the position of inside a plurality of electrical components again, leads to required inner space to increase to require the regulator cubicle to expand sufficient inner space, but in fact can't satisfy this requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an insulation system and use its regulator cubicle through turning to the alternate insulation distance that the connecting row increases adjacent connecting row.
The utility model adopts the technical proposal that:
the utility model provides an insulation system of regulator cubicle, includes three connecting row, and the one end of connecting row is connected with one of its looks contact portion of one of its electrical component, and the other end of connecting row is connected with other electrical component to in three connecting row, be provided with the steering part on two at least connecting rows in order to enlarge the insulation distance between two adjacent connecting rows.
An electrical cabinet comprises a cabinet body, wherein at least two electrical components and the insulation structure of the electrical cabinet are arranged in the cabinet body, and one electrical component is connected with the other electrical component through the insulation structure.
The electric part comprises a circuit breaker assembly and a three-phase bus connecting part, the insulating structure comprises a first insulating structure, and the circuit breaker assembly is connected with the three-phase bus connecting part through the first insulating structure.
Still including setting up the three-phase insulator subassembly on the cabinet body, the tip that first insulation structure and three-phase bus connecting portion are connected is connected with the three-phase insulator subassembly.
The electrical component further comprises a current transformer, the insulation structure comprises a second insulation structure, and the circuit breaker assembly is connected with the current transformer through the second insulation structure.
The circuit breaker assembly comprises a first fixed contact box, a first movable contact group, a second fixed contact box, a second movable contact group, a circuit breaker and a driving mechanism, wherein the first fixed contact box is connected with a three-phase bus connecting part through a first insulation structure, the second fixed contact box is connected with a current transformer through a second insulation structure, the first movable contact group is connected with one end of the circuit breaker, the second movable contact group is connected with the other end of the circuit breaker, and the driving mechanism is connected with the circuit breaker and can drive the circuit breaker to move so as to enable the first fixed contact box and the first movable contact group to be connected or disconnected and enable the second fixed contact box and the second movable contact group to be connected or disconnected.
First stationary contact box includes first stationary contact box body and sets up in first stationary contact box body and can with the three first stationary contact head of first movable contact group connection, the one end of first stationary contact head extends to the outside of first stationary contact box body, the outside of first stationary contact box body is provided with first insulation partition portion between adjacent first stationary contact head, first insulation structure stretches out in the space that first insulation partition portion is insulating is connected with first stationary contact head in order to enlarge after the adjacent double-phase insulation distance from first insulation partition portion isolation in stretching into the space.
The first static contact box body is an epoxy resin insulation contact box.
The second stationary contact box comprises a second stationary contact box body and three second stationary contact parts which are arranged in the second stationary contact box body and can be connected with the second movable contact group, one end of each second stationary contact part extends to the outside of the second stationary contact box body, the outside of each second stationary contact box body is provided with a second insulating partition part between the adjacent second stationary contact parts, and the second insulating structure extends into the insulating space of the second insulating partition part and is connected with the second stationary contact parts to extend out of the insulating space isolated by the second insulating partition parts after the insulating distance between the two adjacent phases is enlarged.
The second static contact box body is an epoxy resin insulation contact box.
One of the above technical solutions has at least one of the following advantages or beneficial effects:
the utility model discloses an insulation structure, utilize three connecting rows, be provided with the steering part on at least two connecting rows, then after making one of them looks contact portion of one of them electric parts draw forth the connecting row, enlarged the insulating distance between the original adjacent connecting row, each electric parts in the regulator cubicle need not to arrange again, effectively utilize the space, can increase the alternate insulating distance between the adjacent connecting row as far as possible in the same space, save the fortune dimension cost, enlarge application scenario, and improve the reliability and the stability of power supply, reduce the potential safety hazard;
the utility model also discloses an use above-mentioned insulation system's regulator cubicle that discloses, at the internal connection that utilizes above-mentioned insulation system to realize between two electrical components of cabinet, under the same alternate insulation distance that reaches safety, can reduce the volume of the cabinet body, reduce occupation space, save fortune dimension cost, on the cabinet body that equates simultaneously, can the alternate insulation distance of maximize, improve the reliability and the stability of power supply, reduce the potential safety hazard.
Drawings
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a front view of the internal structure of the electrical cabinet of the present invention.
Fig. 2 is a schematic view of the insulation structure of the present invention.
Fig. 3 is a side view of the internal structure of the electrical cabinet of the present invention.
Fig. 4 is a schematic structural diagram of the connection row of the insulation structure of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 4, fig. 2 and 4 disclose an insulation structure of an electrical cabinet, which includes three connection rows 1, one end of each connection row 1 is connected to one phase contact portion of one electrical component, the other end of each connection row 1 is connected to another electrical component, and in the three connection rows 1, at least two connection rows 1 are provided with turning portions 11 to enlarge an insulation distance between two adjacent connection rows 1.
Wherein, the portion of turning to 11 on the connecting row 1 can be integrative structure with the connecting row itself, also can be the components of a whole that can function independently structure, and the connecting row 1 includes adaptor (turn to the portion promptly) and connects the copper bar, and it can be conventional model to connect the copper bar, realizes turning to through the adaptor.
The design utilizes three connecting rows 1, and the steering parts 11 are arranged on at least two connecting rows 1, so that after one phase contact part of one electrical component is led out of the connecting row, the insulation distance between the original adjacent connecting rows 1 is enlarged, the electrical components in the electrical cabinet do not need to be rearranged, the space is effectively utilized, the interphase insulation distance between the adjacent connecting rows can be increased as much as possible in the same space, the space is saved, the operation and maintenance cost is saved, the application occasion is enlarged, the reliability and the stability of power supply are improved, and the potential safety hazard is reduced.
As shown in fig. 1-4, the embodiment of the present invention further discloses an electrical cabinet, which includes a cabinet body 2, wherein the cabinet body 2 is provided with at least two electrical components and the insulation structure of the electrical cabinet disclosed by the above embodiment, and one of the electrical components is connected with the other electrical component through the insulation structure.
The cabinet body can be in various shapes, such as a cuboid, a cylinder and the like; the electrical components may be circuit breaker assemblies, current transformers, three-phase bus bar connections, disconnectors, three-phase insulator assemblies, and the like.
The internal connection that utilizes above-mentioned insulation system to realize between two electrical component of cabinet, under the same interphase insulation distance that reaches safety, can reduce the volume of the cabinet body, reduce occupation space, save fortune dimension cost, simultaneously on the cabinet body of the isovolumetric, can increase the interphase insulation distance as far as possible, improve the reliability and the stability of power supply, reduce the potential safety hazard.
In certain embodiments, as shown in fig. 1 and 2, the electrical component includes a circuit breaker assembly 3 and a three-phase bus bar connection portion 4, the insulation structure includes a first insulation structure 5, and the circuit breaker assembly 3 is connected with the three-phase bus bar connection portion 4 through the first insulation structure 5; the three-phase bus bar connection 4 is connected to an external three-phase bus bar.
The electrical cabinet can be a handcart type switch cabinet, and can be composed of a cabinet body and a circuit breaker assembly 3 (namely a movable circuit breaker handcart), so that the circuit breaker handcart can be replaced and maintained quickly and conveniently.
The cabinet body is divided into four compartments: instrument room A, circuit breaker room B, bus bar room C, cable chamber D. The specific dimensions of the electrical cabinet are not limited and may be arranged in conventional sizes, for example, in an area with an altitude of 2000 m and below, the external dimensions of a 35kV cabinet are usually designed to be 1400mm wide x 2800mm deep x 2600mm high.
Further, in order to improve the insulation grade of the cabinet, the cabinet further comprises a three-phase insulator assembly 6 arranged on the cabinet 2, and the end part of the first insulation structure 5 connected with the three-phase bus connecting part 4 is connected with the three-phase insulator assembly 6.
And in order to convert the large current of three-phase alternating current into small current so as to be convenient for secondary equipment to use, the electrical component also comprises a current transformer 7, the insulating structure comprises a second insulating structure 8, and the circuit breaker assembly 3 is connected with the current transformer 7 through the second insulating structure 8.
Wherein, the first insulating structure 5 and the second insulating structure 8 are both the insulating structure disclosed in the above-mentioned embodiments, and are composed of three connecting rows 1, and the turning portions 11 are provided on at least two connecting rows 1 so that the insulating distance between two adjacent connecting rows 1 is increased, and further, the turning portions 11 may be provided on all three connecting rows 1.
In some embodiments, the circuit breaker assembly 3 includes a first stationary contact box 31, a first movable contact group 33, a second stationary contact box 32, a second movable contact group 34, a circuit breaker 35, and a driving mechanism 36, the first stationary contact box 32 is connected with the three-phase bus bar connection part 4 through the first insulation structure 5, the second stationary contact box 32 is connected with the current transformer 7 through the second insulation structure 8, the first movable contact group 33 is connected with one end of the circuit breaker 35, the second movable contact group 34 is connected with the other end of the circuit breaker 35, and the driving mechanism 36 is connected with the circuit breaker 35 and can drive the circuit breaker 35 to move to enable the first stationary contact box 31 and the first movable contact group 33 to be connected or disconnected and the second stationary contact box 32 and the second movable contact group 34 to be connected or disconnected.
The driving mechanism 36 may be a motor-driven lead screw mechanism or a lead screw mechanism provided with a manual operation end, and a motor controlled by the control device drives the chassis with the circuit breaker 35 to move, so as to connect or disconnect the first fixed contact box 31 and the first movable contact group 33 and the second fixed contact box 32 and the second movable contact group 34.
In some embodiments, the first stationary contact box 31 includes a first stationary contact box body 311 and three first stationary contact parts 312 disposed in the first stationary contact box body 311 and capable of being connected with the first movable contact group 33, where the first movable contact group 33 also has three movable contact parts paired with the first stationary contact parts 312, one end of the first stationary contact part 312 extends to the outside of the first stationary contact box body 311, the outside of the first stationary contact box body 311 is provided with a first insulating partition 313 between adjacent first stationary contact parts 312, the first insulating structure 5 extends into a space insulated by the first insulating partition 313 to be connected with the first stationary contact parts 312 to extend an insulating distance between adjacent two phases and then extends out from the space isolated by the first insulating partition 313; here, the three first stationary contact parts 312 correspond to A, B, C three phases respectively, the first insulating partition part 313 is a part on the first stationary contact box body 311, the first insulating partition part 313 forms an insulating space for the A, B, C three-phase first stationary contact parts 312 respectively, the first stationary contact box body 311 is an epoxy resin insulating contact box, and the charged bodies of the three first stationary contact parts 312 arranged in the first stationary contact box body 311 can be insulated and sealed.
After the first stationary contact part 312 extends out of the first stationary contact box body 311, the three first stationary contact parts 312 are distributed in a row or a column, and the insulation distance between the phases may be insufficient, therefore, a first insulation partition part 313 may be provided here, the connection row of the first insulation structure 5 extends into the space separated by the first insulation partition part 313, and turns to the first stationary contact part 312 immediately after being connected, that is, the turning part 11 of the connection row 1 of the first insulation structure 5 is arranged at a position close to the first stationary contact part 312, and after the connection row 1 of the first insulation structure 5 extends out of the space insulated by the first insulation partition part 313, the insulation distance between the phases of the adjacent connection rows 1 reaches a safety distance here.
The second stationary contact box 32 comprises a second stationary contact box body 321 and three second stationary contact parts 322 which are arranged in the second stationary contact box body 321 and can be connected with the second movable contact group 34, wherein the second movable contact group 34 also has three movable contact parts which are matched with the first stationary contact parts 322, one end of each second stationary contact part 322 extends to the outside of the second stationary contact box body 321, a second insulating partition part 323 is arranged between the adjacent second stationary contact parts 322 outside the second stationary contact box body 321, and the second insulating structure 8 extends into the space insulated by the second insulating partition part 323 to be connected with the second stationary contact parts 322 so as to expand the insulating distance between the adjacent two phases and then extends out of the space isolated by the second insulating partition part 323; here three second stationary contact portions 322 correspond A, B, C threephase respectively, and second insulating partition 323 is a part on second stationary contact box body 321, and second insulating partition 323 forms insulating space to A, B, C threephase second stationary contact portions 322 respectively, and second stationary contact box body 321 is the insulating contact box of epoxy, can carry out insulating the closure to the electrified body that sets up three second stationary contact portions 322 in second stationary contact box body 321.
Similarly, the function of the second insulating partition 323 is similar to that of the first insulating partition 313, and the connecting row of the second insulating structure 8 extends into the space partitioned by the second insulating partition 323 and turns to the second stationary contact part 322 immediately after being connected to the second stationary contact part 322, that is, the turning part 11 of the connecting row 1 of the second insulating structure 8 is arranged at a position close to the second stationary contact part 322, and after the connecting row 1 of the second insulating structure 8 extends away from the space insulated by the second insulating partition 323, the inter-phase insulation distance of the adjacent connecting row 1 reaches the safety distance.
For example, based on the design, on the premise that the width of the cabinet body is 1400mm, the interphase insulation distance between the bus bar room C and the cable room D is designed to be 360 mm.
The widths of the upper branch row and the lower branch row in the cabinet are selected according to the width of less than or equal to 60mm so as to ensure that the interphase electric gap between the bus chamber C and the cable chamber D reaches more than or equal to 300 mm.
With the connecting row that the contact box of bus-bar room C and cable chamber D extended out, the distance between the contact portion that extends out on the contact box may only be 300mm, and turn to the portion and can convert connecting row interphase insulation distance into 360mm by 300mm to accomplish respectively with main bus and current transformer's being connected.
As the interphase electric gap is more than or equal to 300mm, the interphase insulating partition plate can be omitted, so that the fault points are reduced, the product cost is reduced, and the overhaul and the maintenance are more convenient.
It is readily understood by those skilled in the art that the above-described preferred modes can be freely combined and superimposed without conflict.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. The insulating structure of the electrical cabinet is characterized by comprising three connecting rows, wherein one ends of the connecting rows are connected with one phase contact part of one electrical component, the other ends of the connecting rows are connected with the other electrical component, and in the three connecting rows, at least two connecting rows are provided with steering parts to enlarge the insulating distance between two adjacent connecting rows.
2. An electrical cabinet, comprising a cabinet body, wherein at least two electrical components and the insulation structure of the electrical cabinet as claimed in claim 1 are disposed in the cabinet body, and one electrical component is connected with another electrical component through the insulation structure.
3. The electrical cabinet of claim 2, wherein the electrical components comprise a circuit breaker assembly and a three-phase bus bar connection portion, the insulation structure comprises a first insulation structure, and the circuit breaker assembly is connected with the three-phase bus bar connection portion through the first insulation structure.
4. The electrical cabinet according to claim 3, further comprising a three-phase insulator assembly disposed on the cabinet body, wherein an end of the first insulating structure connected to the three-phase bus bar connecting portion is connected to the three-phase insulator assembly.
5. The electrical cabinet of claim 3, wherein the electrical component further comprises a current transformer, the insulating structure comprises a second insulating structure, and the circuit breaker assembly is connected to the current transformer through the second insulating structure.
6. An electrical cabinet according to claim 5, wherein the circuit breaker assembly comprises a first fixed contact box, a first movable contact group, a second fixed contact box, a second movable contact group, a circuit breaker and a driving mechanism, wherein the first fixed contact box is connected with the three-phase bus connecting part through a first insulation structure, the second fixed contact box is connected with the current transformer through a second insulation structure, the first movable contact group is connected with one end of the circuit breaker, the second movable contact group is connected with the other end of the circuit breaker, and the driving mechanism is connected with the circuit breaker and can drive the circuit breaker to move so as to connect or disconnect the first fixed contact box and the first movable contact group and connect or disconnect the second fixed contact box and the second movable contact group.
7. The electrical cabinet according to claim 6, wherein the first stationary contact box comprises a first stationary contact box body and three first stationary contact portions arranged in the first stationary contact box body and capable of being connected with the first movable contact group, one end of each first stationary contact portion extends to the outside of the first stationary contact box body, a first insulating partition is arranged on the outside of each first stationary contact box body between adjacent first stationary contact portions, and the first insulating structure extends into an insulating space of the first insulating partition and is connected with the first stationary contact portions to extend out of an insulating space of the first insulating partition after extending into the insulating space between the adjacent two phases and expanding the insulating distance between the adjacent two phases.
8. The electrical cabinet according to claim 7, wherein the first stationary contact box body is an epoxy insulated contact box.
9. The electrical cabinet according to claim 6, wherein the second stationary contact box comprises a second stationary contact box body and three second stationary contact portions arranged in the second stationary contact box body and capable of being connected with the second movable contact group, one end of each second stationary contact portion extends to the outside of the second stationary contact box body, a second insulating partition is arranged between adjacent second stationary contact portions on the outside of the second stationary contact box body, and the second insulating structure extends into the insulating space of the second insulating partition and is connected with the second stationary contact portions to extend out of the insulating space of the second insulating partition after the insulating distance between two adjacent phases is enlarged.
10. The electrical cabinet according to claim 6, wherein the second stationary contact box body is an epoxy insulated contact box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920779548.9U CN210053091U (en) | 2019-05-27 | 2019-05-27 | Insulation structure of electrical cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920779548.9U CN210053091U (en) | 2019-05-27 | 2019-05-27 | Insulation structure of electrical cabinet |
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| CN210053091U true CN210053091U (en) | 2020-02-11 |
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| CN201920779548.9U Active CN210053091U (en) | 2019-05-27 | 2019-05-27 | Insulation structure of electrical cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224327A (en) * | 2019-05-27 | 2019-09-10 | 中山市明阳电器有限公司 | A kind of phase insulation structure of electrical equipment |
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2019
- 2019-05-27 CN CN201920779548.9U patent/CN210053091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224327A (en) * | 2019-05-27 | 2019-09-10 | 中山市明阳电器有限公司 | A kind of phase insulation structure of electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200422 Address after: 528400 No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province Patentee after: Guangdong Mingyang Electric Co., Ltd Address before: 528437 Office Building No. 25 Jiangling West Road, Zhongshan Torch Development Zone, Guangdong Province Patentee before: ZHONGSHAN MINGYANG ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Patentee after: Guangdong Mingyang Electric Co.,Ltd. Address before: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Patentee before: Guangdong Mingyang Electric Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |