CN112366527A

CN112366527A - Miniaturized module integrated 400V low-voltage switch cabinet

Info

Publication number: CN112366527A
Application number: CN202011347116.4A
Authority: CN
Inventors: 马炳烈
Original assignee: Wujiang Transformer Co Ltd
Current assignee: Wujiang Transformer Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-02-12
Also published as: WO2022110098A1

Abstract

The invention relates to the technical field of power equipment, and discloses a miniaturized modular integrated 400V low-voltage switchgear, comprising a skeleton, a casing, a main busbar and a vertical busbar; the main busbar is introduced into the top of the switchgear; the vertical busbar is arranged at the top of the switchgear. In the switch cabinet; the vertical busbar is correspondingly connected to the main busbar through the main lead; it includes multi-layer unitized compartments; each compartment is provided with a circuit breaker and a cable connection integrated module; the upper outlet of the circuit breaker The terminal and the lower outgoing terminal are respectively connected with the vertical busbar and the cable connection integrated module through the upper outgoing wire and the lower outgoing wire respectively; a separation partition is arranged between the upper outgoing wire and the lower outgoing wire; the cable connection integrated module is integrated with current A transformer and a voltage measurement lead-out point; the cable connection integrated module is integrated with a cable-side connection pile head that satisfies the direct connection form of the plug-in conical cable joint.

Description

Miniaturized module integrated 400V low-voltage switch cabinet

Technical Field

The invention relates to power equipment, in particular to a miniaturized module integrated 400V low-voltage switch cabinet.

Background

The low-voltage switch cabinet with the rated voltage of 0.40kV bears the functions of providing electric energy transmission and control, measurement and electric energy metering for users, protects the faults on the user side, is widely applied to industrial and mining enterprises, urban commercial buildings, houses, municipal engineering and other occasions, and has a large amount of area. The existing 0.40kV low-voltage switch cabinet has abundant structural types, but designers still strive to pursue miniaturization of products and total cost minimization of a whole life cycle, and environmental friendliness indexes are continuously improved. The existing low-voltage switch cabinet used for heavy-load power distribution adopts the technologies of parallel arrangement of vertical buses, multiple bending of outgoing line leading connecting rows, capacity of allowing phase conductor space and traditional current transformation elements and the like, and has the problems that the dispersibility of partial elements and bus arrangement in a cabinet body is large, the local space of the switch cabinet is wasted, leading-out loops are few, and the utilization rate of the whole space is low. At present, in urban user occasions, the most urgent problem to be solved is to further promote the miniaturization level of equipment, improve equipment safety and enhance the convenience of maintenance and repair. Fully saves the occupied area and guarantees the power supply reliability index.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a miniaturized module integrated 400V low-voltage switch cabinet, which completes the characteristic parameters of the capacity reaching to multi-loop 630A and the separation form being 4b by the size of 500mm of the cabinet width.

The technical scheme adopted by the invention for solving the technical problems is as follows: a miniaturized module integrated 400V low-voltage switch cabinet comprises a framework, a shell, a main bus and a vertical bus; the main bus is led into the top of the switch cabinet; the vertical bus bar is arranged in the switch cabinet; the vertical bus bar is correspondingly connected with the main bus bar through a main lead; comprising a plurality of unitized compartments; a circuit breaker and a cable connection integrated module are respectively arranged in each layer of compartment; an upper outgoing line terminal and a lower outgoing line terminal of the circuit breaker are correspondingly connected with the vertical busbar and the cable connection integrated module through an upper outgoing line and a lower outgoing line respectively; and a separation clapboard is arranged between the upper outgoing line and the lower outgoing line.

Further, the method comprises the following steps: the cable connection integrated module is integrated with a current transformer and a voltage measurement leading-out contact; the cable connection integrated module is integrated with a cable side connection pile head meeting the direct connection form of the plug-in type conical cable connector.

Further, the method comprises the following steps: the A, B, C three phases of the vertical busbar are arranged in a triangle shape.

Further, the method comprises the following steps: and a protection channel is arranged outside the vertical busbar.

Further, the method comprises the following steps: the protection channel and the separation partition plate are of an integrated structure; the protection channel adopts a variable cross-section structure according to the three-phase position of the vertical busbar A, B, C.

The invention has the beneficial effects that: the switch cabinet provided by the invention realizes the miniaturized design of the 500mm cabinet width of the multi-loop 630A capacity power distribution switch cabinet, has a remarkable significance for improving the occupied area utilization benefit, and has the advantages of convenience in installation of cables and the like, high safety and the like.

Drawings

Fig. 1 is a schematic structural diagram of a front face of a miniaturized module integrated 400V low-voltage switch cabinet;

fig. 2 is a schematic side view of a miniaturized module integrated 400V low-voltage switchgear;

fig. 3 is a schematic structural diagram of the back of a miniaturized module integrated 400V low-voltage switch cabinet;

fig. 4 is a schematic top view of a miniaturized module integrated 400V low-voltage switch cabinet.

Labeled as: 1. a framework; 2. a main bus; 3. a housing; 4. a first breaker; 5. a second circuit breaker; 6. a third circuit breaker; 7. a main lead; 8. an upper outgoing line; 9. a lower outgoing line; 14. connecting the first integrated module; 15. connecting the second integrated module; 16. connecting the integrated module III; 17. a partition plate; 18. a vertical busbar; 19. and (4) protecting the channel.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

Examples

As shown in fig. 1 to 4, a miniaturized module integrated 400V low-voltage switch cabinet includes a framework 1, a housing 3, a main bus bar 2 and a vertical bus bar 18; the main bus 2 is led into the top of the switch cabinet; the vertical bus bar 18 is arranged in the switch cabinet; the vertical busbar 18 is correspondingly connected with the main bus 2 through a main lead 7; comprising a plurality of unitized compartments; a circuit breaker and a cable connection integrated module are respectively arranged in each layer of compartment; the upper outgoing line terminal and the lower outgoing line terminal of the circuit breaker are correspondingly connected with the vertical busbar 18 and the cable connection integrated module through an upper outgoing line 8 and a lower outgoing line 9 respectively; a separation partition plate 17 is arranged between the upper outgoing line 8 and the lower outgoing line 9.

On the basis, the cable connection integrated module is integrated with a current transformer and a voltage measurement leading-out contact; the cable connection integration module is integrated with a cable side connection pile head meeting the direct connection form of the plug-in type conical cable connector; a, B, C three phases of the vertical busbar 18 are arranged in a triangle shape; a protection channel 19 is arranged outside the vertical busbar 18; the protective channel 19 and the separating partition 17 are of an integrated structure; the protection channel 19 adopts a variable cross-section structure according to the three-phase position of the vertical busbar 18A, B, C.

The switch cabinet in the embodiment has three layers of unitized compartments, the vertical bus bar 18 penetrates through the three compartments, and each compartment is internally provided with a breaker, namely a breaker I14, a breaker II 15 and a breaker III 16; each compartment is internally provided with a cable connection integrated module which is a connection integrated module I14, a connection integrated module II 15 and a connection integrated module 16; the breaker is connected with the vertical busbar 18 through the upper outgoing line 8 and is connected with the cable connection integrated module through the outgoing line 9; a separation clapboard 17 is arranged between the upper outgoing line 8 and the lower outgoing line 9 of each breaker; the protection channel 19 of the vertical busbar 18 adopts a variable-section compact structure and is integrally designed with 17 bits of each separation clapboard, so that 4 b-level separation of the switch cabinet is realized.

The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.

Claims

1. A miniaturized modular integrated 400V low-voltage switchgear, comprising a skeleton (1), a casing (3), a main busbar (2) and a vertical busbar (18); the main busbar (2) is introduced into the top of the switchgear; The vertical busbar (18) is arranged in the switch cabinet; the vertical busbar (18) is correspondingly connected to the main busbar (2) through the main lead (7); it is characterized in that: it includes a multi-layer unitized compartment; A circuit breaker and a cable connection integrated module are respectively arranged in the compartments of each floor; the upper outlet terminal and the lower outlet terminal of the circuit breaker are connected to the vertical busbar (18) through the upper lead wire (8) and the lower lead wire (9) respectively. Correspondingly connected with the cable connection integrated module; a partition plate (17) is arranged between the upper lead wire (8) and the lower lead wire (9).

2. A miniaturized module-integrated 400V low-voltage switchgear according to claim 1, characterized in that: the cable connection integrated module is integrated with a current transformer and a voltage measurement lead-out contact; the cable connection integrated module is integrated with a The cable-side connecting pile head meets the direct connection form of the plug-in conical cable gland.

3 . The miniaturized module-integrated 400V low-voltage switchgear according to claim 1 , wherein the three phases A, B and C of the vertical busbar (18) are arranged in a triangle. 4 .

4 . The miniaturized module-integrated 400V low-voltage switchgear according to claim 3 , wherein a protective channel ( 19 ) is provided outside the vertical busbar ( 18 ). 5 .

5. A miniaturized module-integrated 400V low-voltage switchgear according to claim 4, characterized in that: the protective channel (19) and the partition plate (17) are in one-piece structure; the protective channel (19) ) according to the vertical busbar (18) A, B, C three-phase position to adopt variable section structure.