CN202308823U - Novel armored fixed switching cabinet - Google Patents

Abstract

The utility model discloses a novel armored fixed switching cabinet which comprises a cabinet body consisting of a busbar chamber, a circuit breaker chamber, a cable chamber and an instrument chamber which are isolated, wherein the instrument chamber is positioned in front of the upper part of the cabinet body; the busbar chamber is positioned at the rear part of the upper part of the cabinet body; the cable chamber is positioned at the lower part of the cabinet body; and the circuit breaker chamber is positioned at the middle part of the cabinet body. The cabinet body is formed in a mode that a Al-Zn-plated sheet is compounded and bent so as to have small error, high mechanical strength and an attractive appearance; a circuit breaker adopts a solid encapsulated pole horizontal installation mode so as to have small integral volume and is directly overlapped with the outside to effectively dissipate heat; a direct paving mode is adopted to carry out isolation, so that the novel armored fixed switching cabinet occupies a small space, has reliable performance and is labor-saving to operate; and a pure mechanical interlocking mode is adopted, so that the novel armored fixed switching cabinet has a simple structure and strong protection capability.

Description

The fixed switch cubicle of a kind of novel armouring

Technical field

The utility model relates to a kind of fixed switch cubicle.

Background technology

There is following problem in existing switch cubicle: mostly (1) current domestic switch cubicle is the welding cabinet, and welding cabinet manufacture craft is coarse, and scale error is bigger, and profile is attractive in appearance inadequately, and skeleton is yielding, poor sealing; (2) existing switch cubicle is for guaranteeing the reliable electric distance, alternate with mutually between adopt insulating barrier, product integral protection grade is not high, complex structure, cost are too big; (3) existing switch cabinet mechanical interlocking matched a lot of deficiencies that have, failure rate is high, can not well accomplish personal safety protection; (4) many vertical installing type circuit breakers of employing of existing switch cubicle and rotary isolation, thermal diffusivity is bad, and it is bigger to take up space, and inconvenient operation is unfavorable for the inspection maintenance; Existing switch cubicle volume is bigger, and floor space is big, and extremely inconvenience of transportation.

Summary of the invention

For solving the problems referred to above that existing switch cubicle exists; The utility model provides a kind of novel armouring fixed switch cubicle; Its technical scheme of taking is: this switch cubicle comprises the cabinet of being made up of the bus-bar room of mutual isolation, breaker chamber, cable vault and control room; Cabinet adopts the compound bending of aluminizing zine plate to form, and wherein the control room is positioned at the place ahead, cabinet top; Bus-bar room is positioned at rear, cabinet top; Its inside is provided with wall bushing, main bus bar, branch bar, goes up supporting insulator and goes up isolating switch; The straight shop formula that adopts last isolating switch is fixed in isolates on the mounting panel, and the upper end of branch bar links to each other with main bus bar, its lower end and last isolating switch overlap joint; Main bus bar is fixed through wall bushing, and the bus-bar room top is provided with the pressure release lid; The cable vault is positioned at the cabinet bottom; Its inside is provided with down isolating switch, current transformer reaches supporting insulator down; Current transformer is fixed on the cabinet base plate, and the lower end of following supporting insulator is fixed with the overlap joint copper bar, and the overlap joint copper bar connects isolating switch summation current transformer down respectively; Breaker chamber is positioned at the cabinet middle part; Its inside is provided with guide rail, vacuum circuit-breaker and interlock, and vacuum circuit-breaker is arranged on the guide rail, and the arc-control device of vacuum circuit-breaker adopts horizontal mounting means; The front end of vacuum circuit-breaker is connected with last isolating switch through branch row; Its rear end is connected with following isolating switch through branch row, and vacuum circuit-breaker is realized interlocking through interlock and last isolating switch with following isolating switch, and the breaker chamber rear portion is provided with pressure releasing chamber.

This switch cubicle is selected the aluminizing zinc steel plate of import for use, adopts multiple flanging technology to be made a justifying, and whole cabinet has very strong corrosion resistance and non-oxidizability; Have very high mechanical strength, do not need welding, so reduced scale error greatly; Good looking appearance, good seal performance.Cancel alternate with mutually between insulating barrier, perfectly realize its reliable electric distance, the switch cubicle inner structure is simplified, cost reduces greatly, and has improved whole degree of protection, makes it reach the IP4X grade, has improved fail safe greatly.Novel pure mechanical interlocking scheme is adopted in design, and is simple in structure, easy to operate, reliable in action, and blocking function is complete, and well realized " five is anti-" function: have only breaker open operation, earthed switch could be operated upper and lower isolation when the separating brake position; Have only upper and lower when being isolated in the separating brake position, could the operational grounding switch; When having only earthed switch to close a floodgate, just can open the cabinet door, avoid the security incident that produces because of misoperation, accomplish personal safety protection.

Therefore this switch cubicle have that mechanical strength height, good looking appearance, thermal diffusivity are good, little, the rapid operation of taking up space, simple in structure, characteristics that protective capacities is strong.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is further specified.

As shown in Figure 1, cabinet adopts the compound bending of aluminizing zine plate to form, and comprises bus-bar room A, breaker chamber B, the C of cable vault and the D of control room, all uses the Demountable metallic dividing plate to isolate between each compartment, can prevent the fault extension.The D of control room is positioned at the place ahead, cabinet top, interior dress relaying protection and measuring instrument, change over switch, charged display unit, signal lamp and other control, protection, signalling arrangement.

Bus-bar room A is positioned at rear, cabinet top, and its inside is provided with wall bushing 2, main bus bar 3, branch bar 4, goes up supporting insulator 5 and goes up isolating switch 6, and last isolating switch 6 adopts straight shop formula to be fixed on the isolation mounting panel 7; Save the space; Handled easily, and perfect heat-dissipating, the upper end of branch bar 4 links to each other with main bus bar 3; Its lower end and last isolating switch 6 overlap joints; Main bus bar 3 is fixing through wall bushing 2 when passing through cabinet, can the restriction accident spreads to adjacent cabinet and guarantees the mechanical strength of bus, and bus-bar room A top is provided with pressure release lid 1.

The C of cable vault is positioned at the cabinet bottom; Its inside is provided with down isolating switch 9, current transformer 10 reaches supporting insulator 12 down; Current transformer 10 is fixed on the cabinet base plate, safety labor-saving, the lower end of following supporting insulator 12 fixing overlap joint copper bar 11; On the copper bar 11, overlap joint copper bar 11 connects isolating switch 9 summation current transformers 10 down through the cable that overlaps on it respectively.

Breaker chamber B is positioned at the cabinet middle part, and its inside is provided with guide rail 13, vacuum circuit-breaker 14 and interlock 15, and vacuum circuit-breaker 14 is installed on the guide rail 13; The convenient propelling withdrawed from, and is beneficial to maintenance, and the arc-control device of vacuum circuit-breaker 14 adopts horizontal mounting means; Reducing institute takes up space; Strengthen heat-sinking capability, the front end of vacuum circuit-breaker 14 is connected with last isolating switch 6 through branch row, and its rear end is connected with following isolating switch 9 through branch row; Vacuum circuit-breaker 14 is realized interlocking through interlock 15 and last isolating switch 6 and following isolating switch 9; Breaker chamber B rear portion is provided with pressure releasing chamber 8, to discharge the pressure that internal fault electric arc is produced, guarantees switch cubicle and operator safety.The cabinet Qianmen is provided with inspection hole, can observe deciliter position of isolating switch and circuit breaker.

Claims (1)

1. fixed switch cubicle of novel armouring; Comprise the cabinet that bus-bar room (A), breaker chamber (B), cable vault (C) and control room (D) by mutual isolation form; It is characterized in that: cabinet adopts the compound bending of aluminizing zine plate to form, and wherein control room (D) is positioned at the place ahead, cabinet top; Bus-bar room (A) is positioned at rear, cabinet top; Its inside is provided with wall bushing (2), main bus bar (3), branch bar (4), goes up supporting insulator (5) and goes up isolating switch (6); Last isolating switch (6) adopts straight shop formula to be fixed on the isolation mounting panel (7), and the upper end of branch bar (4) links to each other with main bus bar (3), its lower end and last isolating switch (6) overlap joint; Main bus bar (3) is fixing through wall bushing (2), and bus-bar room (A) top is provided with pressure release lid (1); (C) is positioned at the cabinet bottom in the cable vault; Its inside is provided with down isolating switch (9), current transformer (10) reaches supporting insulator (12) down; Current transformer (10) is fixed on the cabinet base plate; The lower end of following supporting insulator (12) is fixed with overlap joint copper bar (11), and overlap joint copper bar (11) connects isolating switch (9) summation current transformer (10) down respectively; Breaker chamber (B) is positioned at the cabinet middle part; Its inside is provided with guide rail (13), vacuum circuit-breaker (14) and interlock (15); Vacuum circuit-breaker (14) is arranged on the guide rail (13); The arc-control device of vacuum circuit-breaker (14) adopts horizontal mounting means, and the front end of vacuum circuit-breaker (14) is connected with last isolating switch (6) through branch row, and its rear end is connected with following isolating switch (9) through branch row; Vacuum circuit-breaker (14) is realized interlocking through interlock (15) and last isolating switch (6) and following isolating switch (9), and breaker chamber (B) rear portion is provided with pressure releasing chamber (8).