CN222981050U - A distribution cabinet with a medium and high voltage cabinet busbar chamber capable of connecting overhead cables - Google Patents
A distribution cabinet with a medium and high voltage cabinet busbar chamber capable of connecting overhead cables Download PDFInfo
- Publication number
- CN222981050U CN222981050U CN202421746446.4U CN202421746446U CN222981050U CN 222981050 U CN222981050 U CN 222981050U CN 202421746446 U CN202421746446 U CN 202421746446U CN 222981050 U CN222981050 U CN 222981050U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- insulator
- cabinet body
- medium
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Patch Boards (AREA)
Abstract
一种中高压柜母线室可接架空电缆的配电柜，包括柜体以及与所述柜体可拆卸连接的顶部接线框；所述顶部接线框包括架空电缆，以及与所述架空电缆连接的第一绝缘子，以及与所述第一绝缘子连接穿过该顶部接线框的引出铜排；所述柜体包括与所述引出铜排连接的铜排，以及与所述铜排连接的第二绝缘子，所述第二绝缘子与断路器的上触头盒连接，所述断路器的下触头盒连接有电流互感器，所述电流互感器通过电缆与避雷器连接，本申请在不增加边柜的情况下，利用现有的馈线柜，通过增加柜顶接线框和改进开关柜的结构，增高柜体局部高度和增加相关接线顶框附件的情况下，可以满足中高系统的带电间隙和爬电距离情况下，同时满足馈线柜能用于架空电缆方式进线。
A power distribution cabinet in which a busbar chamber of a medium- and high-voltage cabinet can be connected to an overhead cable, comprising a cabinet body and a top wiring frame detachably connected to the cabinet body; the top wiring frame comprises an overhead cable, a first insulator connected to the overhead cable, and a lead-out copper busbar connected to the first insulator and passing through the top wiring frame; the cabinet body comprises a copper busbar connected to the lead-out copper busbar, and a second insulator connected to the copper busbar, the second insulator is connected to an upper contact box of a circuit breaker, a lower contact box of the circuit breaker is connected to a current transformer, and the current transformer is connected to a lightning arrester through a cable. The present application utilizes an existing feeder cabinet without adding side cabinets, and by adding a cabinet top wiring frame and improving the structure of a switch cabinet, increasing the local height of the cabinet body and adding related wiring top frame accessories, it can meet the live clearance and creepage distance of the medium- and high-voltage system, and at the same time meet the requirement that the feeder cabinet can be used for overhead cable entry.
Description
Technical Field
The utility model relates to the field of power distribution cabinets, in particular to a power distribution cabinet with a bus chamber capable of being connected with an overhead cable.
Background
The KYN61-40.5 cabinet type power distribution system has the advantages of convenience in operation and maintenance, safety and reliability in power supply and the like, and occupies most of the power distribution system, if the cabinet type power distribution system is adopted in an electric room, an overhead high-voltage three-phase cable is directly connected to a three-phase main busbar corresponding to the busbar chamber without a wire inlet cabinet or crossing the wire inlet cabinet, the power can be quickly taken from the main busbar in the whole group of power distribution panels, or a high-voltage emergency power supply is directly connected to the main busbar in the whole group of power distribution panels through the overhead cable, so that the power can be quickly supplied to the whole group of power distribution panels. At present, under the condition of not adding side cabinets, no standard scheme can meet the requirement;
the voltage in the medium-high voltage system is higher so that the electrified gap and the creepage distance are larger, if a side cabinet is added for the incoming line of the overhead cable, the cabinet width of the cabinet at least meets 800mm width, and the electrified gap and the creepage distance of the medium-high voltage system can be met, so that the space is occupied, and the cost is increased.
Disclosure of utility model
In order to solve the problems, the technical scheme provides the power distribution cabinet with the bus chamber capable of being connected with the overhead cable.
In order to achieve the above purpose, the technical scheme is as follows:
A power distribution cabinet with a bus room capable of being connected with an overhead cable of a medium-high voltage cabinet comprises a cabinet body and a top wiring frame detachably connected with the cabinet body;
The top wire frame comprises an overhead cable, a first insulator connected with the overhead cable, and a lead-out copper bar connected with the first insulator and penetrating through the top wire frame;
The cabinet body comprises a copper bar connected with the lead-out copper bar and a second insulator connected with the copper bar, wherein the second insulator is connected with an upper contact box of the circuit breaker, a current transformer is connected with a lower contact box of the circuit breaker, and the current transformer is connected with a lightning arrester through a cable.
In some embodiments, the top wire frame is provided with angle steel for fixing the first insulator.
In some embodiments, an insulating plate is arranged between the cabinet body and the top wiring frame, and the top wiring frame is provided with a plurality of fixing bolts connected with the cabinet body.
In some embodiments, a top cover plate with a hinged opening is arranged at the top of the top wire frame.
In some embodiments, the top terminal frame end face is provided with a door body with a hinge opening.
The application has the beneficial effects that:
According to the application, under the condition that the side cabinet is not added, the existing feeder cabinet is utilized, the local height of the cabinet body is increased and the accessories of the related wiring top frame are added by adding the cabinet top wiring frame and improving the structure of the switch cabinet, so that the condition that the charging gap and the creepage distance of a medium-high system are met, and meanwhile, the feeder cabinet can be used for feeding wires in an overhead cable mode is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
Fig. 2 is a schematic structural diagram of a second embodiment of the present utility model.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1-2, a power distribution cabinet with a bus room capable of being connected with an overhead cable for a medium-high voltage cabinet comprises a cabinet body and a top wiring frame 1 detachably connected with the cabinet body;
The top wire frame 1 comprises an overhead cable 2, a first insulator 3 connected with the overhead cable 2, and a lead-out copper bar 4 connected with the first insulator 3 and penetrating through the top wire frame 1;
The cabinet body comprises a copper bar connected with the lead-out copper bar 4 and a second insulator 5 connected with the copper bar, the second insulator 5 is connected with an upper contact box of the circuit breaker 6, a lower contact box of the circuit breaker 6 is connected with a current transformer 7, and the current transformer 7 is connected with a lightning arrester 8 through a cable.
In this embodiment, the top wire frame 1 is provided with angle steel 9 for fixing the first insulator 3.
In this embodiment, an insulating plate 10 is disposed between the cabinet body and the top connection frame 1, and the top connection frame 1 is provided with a plurality of fixing bolts 11 connected with the cabinet body.
In this embodiment, a top cover 12 with a hinge opening is provided on the top of the top connection frame 1.
In this embodiment, the end face of the top connection frame 1 is provided with a door body 13 that is opened with a hinge.
Specifically, the principle of the application is as follows:
The KYN61 cabinet adopts an aluminum-zinc-coated steel plate with the thickness of 2.0mm and a stainless steel plate to be armored together into a middle-high voltage alternating current metal closed structure cabinet body with the overall external dimensions of depth, 2800mm, width, 1400mm, height and 2650mm, and the interior of the cabinet body is divided into 5 compartment parts including a secondary control relay protection chamber, a bus chamber, a cable chamber, a handcart chamber and a small bus chamber by a metal partition plate;
The bus chamber of the standard KYN61 cabinet body is flush with the 2650 mm-high cabinet body and is sealed by adopting a metal sealing plate, the bus chamber is mainly used for connecting a horizontal main bus bar among the cabinets, a three-phase horizontal main bus bar transversely passes through the whole group of distribution boards, all feeder cabinets take power on the three-phase horizontal main bus bar through branch bars, supply current flows into the branch bars to reach the upper contact of a circuit breaker, passes through the circuit breaker, reaches the lower contact of the circuit breaker and flows into the input end of a current transformer, passes through the current transformer to reach the output end, finally reaches the feeder copper bar of the cable chamber, and a load is connected to the feeder copper bar by a cable, so that high-voltage power in the distribution boards can be sent to a load end to finish electric energy distribution;
The method can be used for quickly taking electricity from the main bus bar in the whole group of distribution boards or directly connecting a medium-high voltage emergency power supply to the main bus bar in the whole group of distribution boards through the overhead cable so as to realize power transmission;
The standard KYN61 cabinet type bus-bar chamber is an independent sealed compartment, the three-phase main bus-bar is arranged in a delta shape in the cabinet, the C phase is arranged at the lower end, the A, B two phases are arranged at the upper end of the C phase, the B phase is arranged in front of the cabinet, the A phase is arranged at the upper end of the C phase, the A, C phase horizontal main bus-bar is arranged on the same vertical surface, the A, B, C horizontal distance of the three-phase center is 300mm, the minimum electrification distance required by national standards is just met, because the space of the bus-bar chamber is limited, cables cannot be directly pulled into the bus-bar chamber to be connected to corresponding buses, if the operation is in violation of the industrial standard, the space of the bus-bar chamber cannot be used for wiring, the cables are not easily staggered in different phases in the bus-bar chamber, the cables are not fixed, high-voltage two-phase short circuits are easily caused, and serious casualties are caused, and the three-phase main bus-bar is required to be led out of the cabinet, and the three-phase main bus-bar bus is required to be protected and connected outside the cabinet by copper bars;
The depth of a standard KYN61 cabinet is 2800mm, a bus chamber is positioned at the upper middle part of the cabinet body and occupies about 1000mm in the depth direction of the cabinet body, a 840mm high wiring frame is added to the bus chamber on the top of the cabinet, and a cable head is required to be made into relevant accessories due to a middle-high voltage cable connection process, so that at least more than 750mm of space is reserved from a fixed cable position to a lap joint;
The 840mm high ladder-type structure wiring top frame is formed by assembling angle steel into a framework of a bus chamber top frame, and then assembling a top cover plate, a front door plate, a rear sealing plate, a high-voltage insulator, an insulating cable clamp and a mounting bracket, which are formed by bending thickened aluminum-zinc-coated steel plates, into the wiring top frame with the width of 1580 and the depth of 1250 and the height of 840 mm. The bottom of the top frame is required to be connected with a copper bar in a bus chamber by using 50 x 10 vertical copper bars, electricity is led to the wiring chamber of the top frame to be connected with an external overhead cable, the led copper bars are required to be fixed together with insulators in the wiring chamber after reverse phase sequence, insulators with the height of 320mm are fixed on a top mounting beam, the mounting beam is welded on a framework by using angle steel, and the cables are led in from the rear of the chamber and connected with copper bars fixed by 3 insulators;
The newly added wiring chamber is isolated from a bus chamber of the cabinet body, but three-phase copper bars are led out from the top, insulation is needed to be considered, and the bottom is sealed by an insulation baffle plate with the thickness of 10mm for opening three-phase copper bar holes;
The wire top frame is aligned with the bus room of the cabinet body, the holes penetrate through standard bolts of M8 for connection and fastening, then the top frame and the cabinet body can be fixed, and on the contrary, separation can be realized.
The scheme adds a detachable wiring top frame to a bus room of a standard KYN61-40.5 feeder cabinet, and has the following effects and advantages through simple transformation:
1. Generally, the requirement that an overhead medium-high voltage three-phase cable is directly connected to a three-phase main busbar corresponding to the busbar chamber is met, and an 800mm wide empty wiring cabinet is required to be added to meet the requirement of a live gap and the creepage distance;
2. According to the scheme, the cabinet top wiring frame is designed into a detachable top frame accessory, so that the interchangeability and the practicability of the whole cabinet are enhanced, if a user needs to directly connect an overhead medium-high voltage three-phase cable to the three-phase main bus bar corresponding to the bus bar chamber, the function requirement can be met by only adding a 840mm high wiring top frame accessory, and the cabinet body at the lower part of the feeder cabinet is a universal and standard KYN61 cabinet;
3. The wiring top frame is detachable, so that the whole KYN61-40.5 feeder cabinet is more convenient to transport, install and transport, and the cabinet body is transported in two parts, so that the transport and installation cost of large hoisting equipment is saved compared with the whole transportation;
4. The front door plate and the top plate of the top wire frame designed by the scheme are provided with the openable and lockable door, so that convenience in cable wiring and overhaul is ensured, safety of overhaul personnel is also ensured, and a padlock can be additionally arranged when the high-voltage cabinet is electrified to operate, and the sealing plate can be unlocked to be opened when the wire is connected or overhauled.
The foregoing description of the preferred embodiments of the present application is not intended to limit the scope of the application, but rather is presented in the claims.
Claims (5)
1. The power distribution cabinet with the bus room capable of being connected with the overhead cable for the medium-high voltage cabinet is characterized by comprising a cabinet body and a top wiring frame (1) detachably connected with the cabinet body;
The top wire frame (1) comprises an overhead cable (2), a first insulator (3) connected with the overhead cable (2), and an outgoing copper bar (4) connected with the first insulator (3) and penetrating through the top wire frame (1);
The cabinet body comprises a copper bar connected with the lead-out copper bar (4), and a second insulator (5) connected with the copper bar, wherein the second insulator (5) is connected with an upper contact box of a circuit breaker (6), a current transformer (7) is connected with a lower contact box of the circuit breaker (6), and the current transformer (7) is connected with a lightning arrester (8) through a cable.
2. The power distribution cabinet with the bus bar chamber capable of being connected with overhead cables for the medium-high voltage cabinet according to claim 1, wherein the top wire frame (1) is provided with angle steel (9) for fixing the first insulator (3).
3. The power distribution cabinet with the bus bar chamber capable of being connected with the overhead cable, which is disclosed in claim 1, is characterized in that an insulating plate (10) is arranged between the cabinet body and the top wiring frame (1), and the top wiring frame (1) is provided with a plurality of fixing bolts (11) connected with the cabinet body.
4. The power distribution cabinet with the bus bar chamber capable of being connected with overhead cables for the medium-high voltage cabinet according to claim 1, wherein a top cover plate (12) with a hinge opening is arranged at the top of the top wiring frame (1).
5. The power distribution cabinet with the bus bar chamber capable of being connected with the overhead cable for the medium-high voltage cabinet according to claim 1 is characterized in that a door body (13) with a hinge opening is arranged on the end face of the top wiring frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421746446.4U CN222981050U (en) | 2024-07-22 | 2024-07-22 | A distribution cabinet with a medium and high voltage cabinet busbar chamber capable of connecting overhead cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421746446.4U CN222981050U (en) | 2024-07-22 | 2024-07-22 | A distribution cabinet with a medium and high voltage cabinet busbar chamber capable of connecting overhead cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222981050U true CN222981050U (en) | 2025-06-13 |
Family
ID=95976530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421746446.4U Active CN222981050U (en) | 2024-07-22 | 2024-07-22 | A distribution cabinet with a medium and high voltage cabinet busbar chamber capable of connecting overhead cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222981050U (en) |
-
2024
- 2024-07-22 CN CN202421746446.4U patent/CN222981050U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202019137U (en) | Bus bridge frame with commutation function | |
| CN209860412U (en) | Switchgear | |
| CN204481353U (en) | 10kV integral intelligent phased switch cabinet | |
| CN2836283Y (en) | Armored central enclosed AC metal switch apparatus | |
| CN222981050U (en) | A distribution cabinet with a medium and high voltage cabinet busbar chamber capable of connecting overhead cables | |
| CN118920338B (en) | A marine medium voltage DC power distribution device based on water-cooled solid-state circuit breaker | |
| CN201142296Y (en) | Indoor amour fixing type metal closed switch apparatus | |
| CN204793799U (en) | In put formula cubical switchboard | |
| CN217334734U (en) | Fixed high-capacity high-voltage switch equipment | |
| CN202917885U (en) | A steel-clad movable AC switch cabinet | |
| CN222775833U (en) | Low-voltage cabinet with separated bus top frame | |
| US3130353A (en) | Electric power switchgear | |
| US10498112B1 (en) | Bus brace assemblies and methods for power distribution systems | |
| CN210577088U (en) | Low-voltage fixed separation type switch cabinet | |
| JPH1118216A (en) | Insulated wiring distribution board and terminal stand for back wiring | |
| CN202034698U (en) | Heavy current metal armored draw-out type switch cabinet | |
| RU2342260C1 (en) | Power semi-conductor converter for diesel locomotive with three-phase ac supply from synchronous diesel-generator with system of vertical air cooling | |
| CN222582387U (en) | Photovoltaic conflux cabinet | |
| RU21254U1 (en) | COMPLETE DISTRIBUTION DEVICE | |
| CN216390157U (en) | Direct current switch cabinet with small bus compartment | |
| CN111564785A (en) | A handcart type DC circuit breaker switch cabinet | |
| CN209948378U (en) | A high-strength MNS cabinet | |
| US3116360A (en) | Switch gear housing wall with wireway | |
| CN111293597B (en) | Large-scale transformer installation cubical switchboard | |
| CN218448937U (en) | In put generating line of cabinet and promote structure and put cabinet in |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20250630 Address after: 518000 Guangdong Province Shenzhen City Yantian District Shatoujiao Street Tianshen Community Shayan Road 3018 Yantian Modern Industrial Service Center (Phase I) Building A Room 25D Patentee after: Kyushu Taihao (Shenzhen) Electric Power Technology Co.,Ltd. Country or region after: China Address before: 518000 Guangdong Province Shenzhen City Guanhu Street Luhu Community Guansheng Fifth Road No. 5 Taixiao (Shenzhen) Industrial Park Room 301 Patentee before: RAFFLES POWER ELECTRONIC EQUIPMENT (SHENZHEN) Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |