CN2867666Y

CN2867666Y - Box fixed metal enclosed switch cubicle

Info

Publication number: CN2867666Y
Application number: CN 200520106249
Authority: CN
Inventors: 林必宝; 张公禄; 洪福贤
Original assignee: HANGZHOU ELECTRICAL APPLIANCES SWITCHES CO Ltd
Current assignee: HANGZHOU ELECTRICAL APPLIANCES SWITCHES CO Ltd
Priority date: 2005-08-26
Filing date: 2005-08-26
Publication date: 2007-02-07
Anticipated expiration: 2015-08-26

Abstract

The utility model discloses a fixed-type metal-enclosed switch cabinet for receiving and distributing power in 3, 6, 10 KV three-phase AC 50Hz system. The switch cabinet comprises a metal-enclosed box structure, a circuit breaker chamber at the lower part of the cabinet, a bus chamber, a cable chamber, and a relay chamber, wherein the chambers are isolated from each other by steel plates; and the entire frame of the cabinet is made of C-shaped steel. The cabinet has fast manufacture, firm structure, good profile, and environmental protection, and can be used as the substitute for angle steel welding.

Description

The fixed metal closed switch cabinet of box

Technical field

The utility model relates to the fixed metal closed switch cabinet of a kind of box, belongs to the high voltage switchgear field specifically.

Background technology

Common case type closed switchgear (abbreviation switch cubicle) is to be used for 3,6, in the 10kV three-phase alternating current 50Hz system, as accepting and the usefulness of distributing electric energy, be particularly suitable for the occasion of frequent operation, its bus-bar system is single busbar connection (and can derive bypass of single busbar connection band and double-bus structure).

The making of this switch cubicle in the past all is the mode that adopts the angle steel welding, and manufacturing process is grown and is not easy to and installs.The shell of present switch cubicle mostly adopts the armored structure, and is fixed on the skeleton by bolt or rivet, but the skeleton structure of switch cubicle does not all have big change always, in the production of reality the production cycle long, inconvenience is installed.The engineers and technicians of company have designed the technical scheme that adopts C type section steel manufacture switch cubicle skeleton for this reason.

Summary of the invention

The purpose of this utility model provide a kind of by C type shaped steel as the fixed metal closed switch cabinet of the box of main body framework;

Another purpose of the present utility model provides a kind of fixed metal closed switch cabinet of box that can be assembled into required compartment form by C type shaped steel.

The fixed metal closed switch cabinet of a kind of box, this cabinet adopts metal enclosed case structure, is divided into breaker chamber, bus-bar room, cable vault, relay bungalow in the cabinet, separates with steel plate between chamber and the chamber, and breaker chamber is in the cabinet bottom; It is characterized in that: the whole skeleton of cabinet is assembled by C type shaped steel.

The transmission of circuit breaker is connected with operating mechanism by pull bar in switch cubicle; The circuit breaker lower connecting terminal is connected with current transformer, current transformer is connected with the binding post of following isolating switch, the circuit breaker upper connecting terminal is connected with the binding post of last isolating switch, breaker chamber also is provided with pressure relief channels, bus-bar room is in the cabinet upper back, bus is that product shape is arranged and with the porcelain insulator support of 7350N bending strength, bus is connected with last isolating switch binding post, the internal structure of cabinet is to be interconnected by the inner column of upright supports and crossbeam to form, and it is characterized in that inner column, crossbeam and column all are C type shaped steel.

Inner column, crossbeam and column are a plurality of and are assembled into required compartment form in the switch cubicle.Wherein all there is hasp to be connected between inner column and the crossbeam or between column and the crossbeam.

This cabinet production is quick, firm in structure, and good looking appearance, and environmental protection are the alternative of angle steel welding.

Description of drawings

Fig. 1 is the front view of switch cubicle;

Fig. 2 is the private side view of switch cubicle;

Fig. 3 is the front view of cabinet skeleton;

Fig. 4 is as switch cubicle right side inner frame figure during the row of contact not;

Fig. 5 is inner frame figure when there is contact row on the switch cubicle right side;

Fig. 6 is inner frame figure when there is contact row in the switch cubicle left side;

Fig. 7 is inner frame figure when contact is arranged on the left of the switch cubicle;

Fig. 8 is the inner frame figure that is assembled into breaker cabinet (switch cubicle);

Fig. 9 is the inner frame figure that is assembled into factory's transformer outlet cabinet;

Figure 10 is the inner frame figure that is assembled into main transformer outlet cabinet.

Embodiment

Describe design idea of the present utility model in detail below in conjunction with accompanying drawing:

As Fig. 1 and Fig. 2, the fixed metal closed switch cabinet of common box is divided into breaker chamber 7, bus-bar room 1, cable vault 10, relay bungalow 5 in cabinet, separate with steel plate between chamber and the chamber, and breaker chamber 7 is in the cabinet bottom; The transmission of circuit breaker is connected with operating mechanism 6 by pull bar; The circuit breaker lower connecting terminal is connected with current transformer, current transformer is connected with the binding post of following isolating switch, the circuit breaker upper connecting terminal is connected with the binding post of last isolating switch, breaker chamber also is provided with pressure relief channels 2, if when internal arc took place, gas can discharge pressure by the exhaust passage.Also be connected to ground connection copper cash 9 and electromagnetism and spring mechanism 8 in addition.

Bus-bar room 1 is in the cabinet upper back, and its front portion is control room 3, is little bus-bar room 4 at the top of control room, and in order to reduce the cabinet height, bus is product shape and arranges; With the porcelain insulator support of 7350N bending strength, bus is connected with last isolating switch binding post.Cable vault 10 is at the rear of cabinet bottom, and supporting insulator can be provided with monitoring arrangement in the cable vault 10, and cable is fixed on the support, and when being the contact scheme for tie lines, this chamber then is the link cable chamber.

Breaker operation mechanism just is contained in left position, and its top is the operation and the interlocking device 6 of isolating switch.Switch cubicle is two-sided maintenance, the secondary component of front maintenance relay bungalow, safeguard operating mechanism, mechanical interlocking and running part, maintenance circuit breaker, back maintenance main bus bar and cable termination, at breaker chamber and cable vault illuminating lamp is housed all, the below at Qianmen is provided with the ground connection copper busbar parallel with the cabinet cross direction, and its cross section is 4 * 40mm ²Mechanical interlocking: in order to prevent on-load deciliter isolating switch; Prevent that the mistake branch from closing circuit breaker by mistake; Prevent mistakenly entering charged chamber; Prevent charged splice grafting ground switch; Prevent to be with the ground connection cutter to close a floodgate.

In order to support also these assemblies of fixed switchgear, the form that normally adopts angle steel to weld forms the main body frame (main body framework) of switch cubicle, but the form of angle steel welding slow cycle in the process of producing is long, and assembling is inconvenient.If adopt the whole skeleton of C type shaped steel assembly unit cabinet, just can not have this problem.

As shown in Figure 3, main body frame front view by the assembled switch cubicle of C type shaped steel, wherein can adopt a plurality of columns 11 to be used as body supports, on column 11, fix the crossbeam 14 of cabinet inside by special-purpose hasp 12, between the crossbeam 14 corresponding inner column 13 can be set as required, thereby form the main body frame of switch cubicle.

In Fig. 4 and Fig. 5, then show the different frames figure that is adopted when the switch cubicle right side does not have, has contact row among Fig. 3 respectively; Frame diagram when having, not having contact row on the left of Fig. 6 and Fig. 7 then show; From this 5 width of cloth figure, as can be seen, adopt the frame by switch cabinet of C type shaped steel assembly unit, can splice the skeleton of multiple structure by the shaped steel that uses model of the same race easily, as long as connect with hasp.Just wherein inner column, crossbeam and column are a plurality of, and are assembled into required compartment form; All there is hasp to be connected between inner column and the crossbeam or between column and the crossbeam.

Figure 8 shows that the skeleton drawing that is assembled into breaker cabinet with C type shaped steel; Fig. 9 is assembled into the skeleton drawing of factory's transformer outlet cabinet for adopting C type shaped steel; Figure 10 then is the skeleton drawing that goes out main transformer outlet cabinet with the assembly unit of C type shaped steel.We therefrom can further find out, can risk the electric equipment of various versions easily with C type shaped steel and hasp, so also given unnecessary details with regard to no longer its assembly unit process being remake one by one at this.

Above-listed detailed description is specifying at possible embodiments of the present utility model, only this embodiment is not in order to limit claim of the present utility model, everyly do not break away from equivalent embodiment or the change that the utility model skill spirit is made, for example, equivalence embodiment Deng changing all should be contained in the claim of this case.

Claims

1, the fixed metal closed switch cabinet of a kind of box, this cabinet adopts metal enclosed case structure, is divided into breaker chamber, bus-bar room, cable vault, relay bungalow in the cabinet, separates with steel plate between chamber and the chamber, and breaker chamber is in the cabinet bottom; It is characterized in that: the whole skeleton of cabinet is assembled by C type shaped steel.

2, the fixed metal closed switch cabinet of box according to claim 1, it is characterized in that: the transmission of its circuit breaker is connected with operating mechanism by pull bar; The circuit breaker lower connecting terminal is connected with current transformer, current transformer is connected with the binding post of following isolating switch, the circuit breaker upper connecting terminal is connected with the binding post of last isolating switch, breaker chamber also is provided with pressure relief channels, bus-bar room is in the cabinet upper back, bus is that product shape is arranged and with the porcelain insulator support of 7350N bending strength, bus is connected with last isolating switch binding post, the internal structure of cabinet is to be interconnected by the inner column of upright supports and crossbeam to form, wherein, inner column, crossbeam and column all are C type shaped steel.

3, the fixed metal closed switch cabinet of box according to claim 2 is characterized in that inner column, crossbeam and column are a plurality of and are assembled into the compartment form.

4, the fixed metal closed switch cabinet of box according to claim 2, it is characterized in that between inner column and the crossbeam or column and crossbeam between all have hasp to be connected.