CN219086655U - 35kV compact switch cabinet - Google Patents
35kV compact switch cabinet Download PDFInfo
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- CN219086655U CN219086655U CN202320162048.7U CN202320162048U CN219086655U CN 219086655 U CN219086655 U CN 219086655U CN 202320162048 U CN202320162048 U CN 202320162048U CN 219086655 U CN219086655 U CN 219086655U
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Abstract
A35 kV compact switchgear. Relates to electrical equipment. The intelligent cabinet temperature control device comprises a cabinet body, wherein an instrument room, a bus room, a front-mounted breaker room and a cable outlet room are arranged in the cabinet body, the instrument room and the front-mounted breaker room are positioned at the front part of the cabinet body, the instrument room is positioned above the front-mounted breaker room, the bus room and the cable outlet room are positioned at the middle rear part of the cabinet body, and the bus room is positioned above the cable outlet room; the voltage transformer with the built-in fuse is hung on the top of the cabinet body upside down and is positioned behind the bus chamber; the insulating partition plates are arranged in the cable outlet chamber at intervals, and the insulating partition plates are positioned between the cable outlet lines of each phase. The utility model has compact structure, convenience and reliability.
Description
Technical Field
The utility model relates to electrical equipment, in particular to 35kV switching equipment.
Background
Along with the acceleration of the carbon reaching peak and the carbon neutralization process, a novel electric power system taking new energy as a main body is built, and the novel electric power system is a necessary requirement for energy power transformation. At present, most of new energy access needs to utilize the interval of 35kV outlet cabinets at the low-voltage side of the original 110kV and 220kV transformer substation. In the design stage, the original outgoing line is not considered to be provided with a voltage transformer (PT), so that the outgoing switch cabinet is internally provided with no voltage transformer. Considering the requirements of new energy circuit metering and protection, the switch cabinet needs to be modified.
Currently, the size of a 35kV switch cabinet is 1400mm by 2500mm by 2350mm, and after PT is added, the size of the switch cabinet is 1680mm by 3700mm by 2480mm after modification in order to ensure the safety distance of an electrified part. At this time, as shown in fig. 4, the common voltage transformer 9 is arranged at the bottom of the cabinet body and is arranged side by side with the lightning arrester 53 and the current transformer 54, and meanwhile, air insulation is adopted, so that the installation space of the cabinet body is increased, the reserved standby space is occupied, the long-range outgoing line scale is reduced, and the long-range construction of the transformer substation is affected.
Disclosure of Invention
Aiming at the problems, the utility model provides the 35kV compact switch cabinet which is reasonable in layout on the premise of meeting the existing size.
The technical scheme of the utility model is as follows: the intelligent cabinet temperature control device comprises a cabinet body, wherein an instrument room, a bus room, a front-mounted breaker room and a cable outlet room are arranged in the cabinet body, the instrument room and the front-mounted breaker room are positioned at the front part of the cabinet body, the instrument room is positioned above the front-mounted breaker room, the bus room and the cable outlet room are positioned at the middle rear part of the cabinet body, and the bus room is positioned above the cable outlet room;
the voltage transformer with the built-in fuse is hung on the top of the cabinet body upside down and is positioned behind the bus chamber;
the insulating partition plates are arranged in the cable outlet chamber at intervals, and the insulating partition plates are positioned between the cable outlet lines of each phase.
The cabinet also comprises a dehumidifying heater which is connected to the bracket at the bottom of the cabinet body.
The bottom of the cable outlet chamber is sequentially provided with a grounding disconnecting link, an outlet cable, a lightning arrester and a current transformer from back to front,
the wire inlet end of the current transformer is connected to the circuit breaker in the pre-breaker chamber through a copper bar, and the wire outlet end of the current transformer is respectively connected with the voltage transformer with the built-in fuse, the lightning arrester, the grounding disconnecting link and the wire inlet end of the wire outlet cable through the copper bar.
The front-mounted circuit breaker is characterized in that a guide rail is arranged in the front-mounted circuit breaker chamber, a chassis vehicle is arranged on the guide rail, and the circuit breaker is arranged on the chassis vehicle.
The guide rail is provided with a working position mark and a test position mark, and the chassis is used for moving between the working position mark and the test position mark.
In operation, the width of the switch cabinet is compressed from 1680mm to 1400mm by additionally arranging the insulating partition plates between different phases in the cable outlet chamber; the voltage transformer is hung on the top of the cabinet body in an inverted mode, so that the distance between the lightning arrester and a cable outgoing line is shortened, and the depth of the cabinet body is further compressed from 3700mm to 2500mm; the height of the cabinet body is compressed from 2480mm to 2350mm by arranging the fuse in the voltage transformer. The utility model has compact structure, convenience and reliability.
Drawings
Figure 1 is a schematic view of the structure of the present utility model,
figure 2 is a partial left side view of figure 1,
figure 3 is a partial top view of figure 1,
FIG. 4 is a schematic diagram of a prior art structure;
in the figure, 1 is a cabinet body, 2 is an instrument room, 3 is a bus bar room,
4 is a pre-breaker chamber, 41 is a breaker, 42 is a rail, 43 is a chassis,
5 is a cable outlet chamber, 51 is an outlet cable, 52 is a grounding disconnecting link, 53 is a lightning arrester, 54 is a current transformer,
6 is a voltage transformer with a built-in fuse, 7 is an insulating partition board, 8 is a dehumidification heater, 9 is a voltage transformer,
in the figure, a is the depth of the cabinet, b is the width of the cabinet, and c is the height of the cabinet.
Detailed Description
The utility model is shown in figures 1-3, and comprises a cabinet body 1, wherein an instrument room 2, a bus room 3, a front circuit breaker room 4 and a cable outlet room 5 are arranged in the cabinet body, the instrument room 2 and the front circuit breaker room 4 are positioned at the front part of the cabinet body, the instrument room 2 is positioned above the front circuit breaker room 4, the bus room 3 and the cable outlet room 5 are positioned at the middle and rear part of the cabinet body, and the bus room 3 is positioned above the cable outlet room 5;
the intelligent power supply cabinet further comprises a voltage transformer 6 with a built-in fuse and an insulating partition 7, wherein the voltage transformer 6 with the built-in fuse is inversely hung at the top of the cabinet body and is positioned at the rear of the bus room 3;
the insulating partition plates are arranged in the cable outlet chamber at intervals and positioned between the cable outlet lines of each phase so as to reduce the insulation distance between the phases.
In operation, the width b of the switch cabinet is compressed from 1680mm to 1400mm by additionally arranging the insulating partition plates between different phases in the cable outlet chamber; the voltage transformer is hung on the top of the cabinet body in an inverted mode, so that the distance between the lightning arrester and a cable outgoing line is shortened, and the depth a of the cabinet body is compressed from 3700mm to 2500mm; the height c of the cabinet body is compressed from 2480mm to 2350mm by embedding a fuse in the voltage transformer.
The cabinet also comprises a dehumidifying heater 8, wherein the dehumidifying heater 8 is connected to a bracket at the bottom of the cabinet body.
By additionally installing the dehumidifying heater, the problem that the insulating partition plate is exposed due to the temperature difference of cold and hot air, and the insulating property of the partition plate is affected is solved.
The bottom of the cable outlet chamber is provided with a grounding disconnecting link 52, an outlet cable 51, a lightning arrester 53 and a current transformer 54 in sequence from back to front,
the incoming line end of the current transformer 54 is connected to the breaker 41 in the pre-breaker chamber through a copper bar, and the outgoing line end of the current transformer 54 is respectively connected with the voltage transformer 6 with the built-in fuse, the lightning arrester 53, the grounding disconnecting link 52 and the incoming line end of the outgoing line cable 51 through a copper bar.
The interior of the front-mounted breaker chamber 4 is provided with a guide rail 42, a chassis 43 is arranged on the guide rail, and a breaker 41 is arranged on the chassis. Through the cooperation of chassis car and guide rail, conveniently remove.
The guide rail 42 is provided with a working position mark and a test position mark, and the chassis is used for moving between the working position mark and the test position mark. Therefore, the chassis can be conveniently moved to a preset position, and the chassis is convenient and reliable.
According to the 35kV switch cabinet, the original cabinet size is not changed after the voltage transformer is added by means of changing the arrangement of primary equipment in the cabinet, adding additional insulating equipment and the like, so that the 35kV switch cabinet has a circuit metering function.
For the purposes of this disclosure, the following points are also described:
(1) The drawings of the embodiments disclosed in the present application relate only to the structures related to the embodiments disclosed in the present application, and other structures can refer to common designs;
(2) The embodiments disclosed herein and features of the embodiments may be combined with each other to arrive at new embodiments without conflict;
the above is only a specific embodiment disclosed in the present application, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (5)
1. The 35kV compact switch cabinet comprises a cabinet body, wherein an instrument room, a bus room, a front-mounted breaker room and a cable outlet room are arranged in the cabinet body, the instrument room and the front-mounted breaker room are positioned at the front part of the cabinet body, the instrument room is positioned above the front-mounted breaker room, the bus room and the cable outlet room are positioned at the middle rear part of the cabinet body, and the bus room is positioned above the cable outlet room;
the novel electric power generation device is characterized by further comprising a voltage transformer with a built-in fuse and an insulating partition board, wherein the voltage transformer with the built-in fuse is inversely hung at the top of the cabinet body and is positioned at the rear of the bus chamber;
the insulating partition plates are arranged in the cable outlet chamber at intervals, and the insulating partition plates are positioned between the cable outlet lines of each phase.
2. The 35kV compact switchgear of claim 1 further comprising a dehumidification heater connected to a bracket at the bottom of the cabinet.
3. The 35kV compact switchgear according to claim 1 or 2, wherein the bottom of the cable outlet chamber is provided with a grounding switch, an outlet cable, a lightning arrester and a current transformer in sequence from the back to the front,
the wire inlet end of the current transformer is connected to the circuit breaker in the pre-breaker chamber through a copper bar, and the wire outlet end of the current transformer is respectively connected with the voltage transformer with the built-in fuse, the lightning arrester, the grounding disconnecting link and the wire inlet end of the wire outlet cable through the copper bar.
4. The 35kV compact switchgear according to claim 1, wherein the front-end circuit breaker chamber is provided with a guide rail, the guide rail is provided with a chassis, and the chassis is provided with a circuit breaker.
5. A 35kV compact switchgear as claimed in claim 4, wherein the guide rail is provided with a working position marker and a test position marker, the chassis being arranged to move between the working position marker and the test position marker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320162048.7U CN219086655U (en) | 2023-02-09 | 2023-02-09 | 35kV compact switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320162048.7U CN219086655U (en) | 2023-02-09 | 2023-02-09 | 35kV compact switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219086655U true CN219086655U (en) | 2023-05-26 |
Family
ID=86400366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320162048.7U Active CN219086655U (en) | 2023-02-09 | 2023-02-09 | 35kV compact switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219086655U (en) |
-
2023
- 2023-02-09 CN CN202320162048.7U patent/CN219086655U/en active Active
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