CN2591812Y

CN2591812Y - Central function combined metal closed switch equipment

Info

Publication number: CN2591812Y
Application number: CN 02259031
Authority: CN
Inventors: 陈立文; 王治洲; 叶荣伟; 李芳�
Original assignee: Xi An Weineng Electric Co ltd
Current assignee: Xi An Weineng Electric Co ltd
Priority date: 2002-12-09
Filing date: 2002-12-09
Publication date: 2003-12-10
Anticipated expiration: 2012-12-09

Abstract

The utility model relates to a central function combined metal closed switch equipment, which belongs to the field of high-voltage switch equipment. A cabinet body frame is formed by a double plate of a single bent steel plate assembled with a zero pulling rivet, and main devices, such as a main bus of a main guide electric return circuit, which can be concurrently used as a static contact, a breaker which can be longitudinally rotated and has visible isolated fracture function, a piercing assembled type mutual inductor, longitudinally operated grounding switch, a valve mechanism which is operated by a single arm of a horizontal baffle, a door and a panel, which are hung on a raising bayonet, a secondary control intelligent unit, etc. are arranged in the cabinet. The utility model has the advantages of simple and reasonable structure, less material consumption, low cost, safe and convenient operation, easy overhaul and maintenance, etc.

Description

Home-Style Feature Metal-Enclosed Switchgear

Affiliated technical field

The utility model belongs to the high voltage electric equipment technical field, relates to a kind of high voltage switchgear that is used to accept and distribute electric energy.

Background technology

Known high voltage switchgear is by compositions such as cabinet body frame, major component (comprising that circuit breaker, current transformer, moving contact, stationary contact are first-class) and master, branch bus, earlier primary element is fixed or is erected on the cabinet body frame during installation, then by wall bushing, contact box and master, branch bus are coupled to each other the composition major loop with each element up and down.In the prior art, the cabinet body frame of high voltage switchgear generally is to adopt 3 or 4 millimeters general steel plate welding fabrications or add bolt with 2 millimeters multiple bending steel plates connection moulding by riveting nut; Circuit breaker in the equipment is positive installs or positive the propelling extracted out and be connected with master, branch bus with contact box up and down, does not have obvious as seen fracture; The earthed switch of equipment is that the front is installed and could vertically be operated by the transmission conversion; The valve of equipment opens and closes when handcart advances or extracts out with the transmission hoisting mechanism by both sides of two vertical partition plates up and down, is difficult to guarantee synchronism; Appliance doors and panel are all tight with a plurality of bolt and nut bolts, cause the opening and closing inconvenient operation and the poor reliability of door.In a word, present known high voltage switchgear also exist in actual applications material (sheet material, copper material) waste serious, install labour intensity big, consuming time many, link is many, troublesome poeration, complex process, repair and maintenance inconvenience and have problems such as potential safety hazard.

The utility model content

The purpose of this utility model is to overcome the various shortcomings that prior art exists, so provide a kind of design novelty, simple and reasonable, consumptive material is few, cost is low, easy-to-operate and be easy to the Home-Style Feature Metal-Enclosed Switchgear of repair and maintenance.

For achieving the above object, the utility model designer has made the multinomial reasonably improvement that more becomes to the structure of conventional high-tension switchgear product, its improvement mainly comprises: 1, cabinet body frame is served as reasons the two plates of single bending steel plate to the structure of zero staking assembled formation, has the advantage that precision height, intensity are good, save material and save installation work-hour; 2, cancellation branch bus and upper and lower contact box, directly making the isolation fracture fixed contact with main bus bar as fixed contact connects with moving contact, rather than traditional make fixed contact with conductive copper material and be attached to again on the main bus bar, saved copper material like this, also reduced the loop resistance of intermediate link; 3, adopt vertical rotary circuit breaker, be that three-phase vacuum breaker pole in the circuit breaker is vertically arranged by front and back and is installed on the handcart frame that can rotate along horizontal axis, pole can be done 90 ° of rotations around horizontal axis under the operating mechanism operation, circuit breaker is the service position when being in vertical upright position, be the isolated location during transverse horizontal position, obvious visible length arranged apart from isolation fracture; 4, set coil is through-flow bus punching fabricated construction on the current transformer, and the coil of various different no-load voltage ratios and precision can assemble mutually, and hold concurrently and be with fixed contact in coil top, bottom double band grounding contact and cable interface; 5, earthed switch is by vertically being installed on the carriage bar, one end of cradling piece connects adorns cabinet front-operated axis hole place, from cabinet front-operated axis hole direct control, the shortcoming of the vertical operation of ability is installed and is changed by transmission in the front that has overcome legacy equipment during work; 6, valve is a vertical equity dividing plate, the rear end of dividing plate is installed on the squab panel of cabinet body frame inner breaker chamber by single armed operation transmission mechanism, can do side-to-side movement by simple light and handy transmission mechanism single armed operation during work, overcome and adopted two vertical partition plates and the transmission hoisting mechanism by both sides existing inhomogeneous, the nonsynchronous shortcoming of mode that moves up and down in the legacy equipment; 7, the part all around that contacts with cabinet at cabinet chamber door and panel is provided with a plurality of bayonet sockets and buckles, can promote and detain down by special-purpose handle and make door or panel opening and closing leggiero, on the door of cabinet chamber, the anti mis-closedown function unit is housed also, has reduced the parts that legacy equipment is connected and fixed by a plurality of bolt and nuts and shortened the operating time; In addition, bayonet socket articulates the ability that has also improved the anti-internal arc fault of equipment all around.

Description of drawings

Fig. 1 is the side-looking structural representation of a specific embodiment of the utility model.

Fig. 2 is the front view of this equipment.

Fig. 3 is the front view with breaker chamber door of anti mis-closedown function.

Fig. 4 is the end view of Fig. 3.

Embodiment

Referring to accompanying drawing, Home-Style Feature Metal-Enclosed Switchgear described in the utility model is by cabinet body frame 1 and be located at main conductive circuit (once) main bus bar 4 in the cabinet body frame 1, circuit breaker 6, current transformer 12, earthed switch 15, secondary control intelligent cell 2, control room 3, valve 7 etc. and form.The space is divided into control room 3, breaker chamber 9 and cable vault's 18 3 parts from bottom to top in the cabinet.Cabinet body frame 1 is formed the zero pulling rivet staking assembling of loosing core by the two plates of single bending steel plate, all thick 2 millimeters of doubling plate, and the cabinet shape has in-line, T-shaped, angle steel shape, concave-convex.Do not establish branch bus and upper and lower contact box in the cabinet, the main conductive circuit of equipment directly connects connection by main bus bar 4, moving contact of

breaker

5,10, circuit breaker 6, instrument transformer top fixed contact 11 and major components such as bottom fixed contact 14 and instrument transformer 12, and each major component all has combination function.The main bus bar 4 double isolation fracture fixed contacts of doing directly connect with moving contact of breaker 5.Circuit breaker 6 is for vertically rotary, when it by the upright position half-twist position that is up to the standard, promptly form obvious visible length apart from isolation fracture.Current transformer 12 is that punching is fabricated, and moving contact on its top fixed contact 11 and the circuit breaker 10 connects, bottom fixed contact 14 can with earthed switch 17 and cable connection.Earthed switch 17 is vertically installed, from cabinet front-operated axis hole 16 direct controls.Valve 7 is located at the circuit breaker top, is a vertical equity dividing plate, and is movable about can doing by the operation of transmission mechanism 8 single armeds.The part all around that contacts with cabinet at cabinet chamber door 21 and panel 22 is provided with a plurality of bayonet sockets 19 and buckles 20, and anti mis-closedown function unit 23 also is housed on the door of chamber.Secondary control in the cabinet, protection, metering, monitoring, communication, operation circuit all are made of corresponding intelligent cell, constitute multiple specific functional unit by first and second the different modes of connection in cabinet are common.

Claims

1, a kind of Home-Style Feature Metal-Enclosed Switchgear, by cabinet body frame (1) and be located at a main bus bar of main conductive circuit (4) in the cabinet body frame (1), circuit breaker (6), current transformer (12), earthed switch (15), secondary control intelligent cell (2), control room (3), valve (7) etc. and form, chamber door (21) and panel (22) are housed on cabinet body frame (1), it is characterized in that

The two plates of single bending steel plate are to zero staking assembled formation 1.1 cabinet body frame (1) is served as reasons;

1.2 directly connect as fixed contact with moving contact with main bus bar (4);

1.3 the three-phase vacuum breaker pole in the circuit breaker (6) is installed in one by the vertical arrangement in front and back can be along on the handcart frame of horizontal axis rotation;

1.4 it is through-flow bus punching fabricated construction that current transformer (12) is gone up set coil (13), hold concurrently and be with fixed contact in its top, bottom double band grounding contact and cable interface;

1.5 earthed switch (17) is by vertically being installed on the carriage bar, an end of cradling piece is even adorned cabinet front-operated axis hole (16) and is located;

1.6 valve (7) is a vertical equity dividing plate, the rear end of dividing plate is installed on the squab panel of cabinet body frame (1) inner breaker chamber (9) by single armed operation transmission mechanism;

1.7 the part all around that contacts with cabinet at cabinet chamber door (21) and panel (22) is provided with a plurality of bayonet sockets (19) and buckles (22), and anti mis-closedown function unit (23) is housed on cabinet chamber door (21).