CN204230682U - A kind of modular ac metal closing switch gear - Google Patents

Abstract

A unitary AC metal-enclosed switchgear belongs to the technical field of power distribution equipment, and in particular relates to a unitary AC metal-enclosed switchgear. The utility model provides a unit type AC metal-enclosed switchgear with high safety and simple structure. The utility model includes a cabinet body. The upper part of the cabinet body is provided with a transverse partition. The interior of the cabinet above the transverse partition is a busbar room. Side partitions are arranged around the interior of the cabinet below the transverse partition. The side partitions The inner side is the cable room; the front side of the busbar room is provided with a vertical partition, and the end of the cabinet in front of the vertical partition is provided with an upper door, and the mechanism room is between the vertical partition and the upper door; a load switch is arranged on the horizontal partition, and the bus bar The upper pressure relief plate is set on the side wall of the chamber, and the operating mechanism of the load switch is set in the mechanism room; the lower end of the cable room is a bottom plate, and a cable clamp is set on the bottom plate, and a grounding switch is set on the side wall of the cable room. A lower pressure relief plate is arranged on the plate.

Description

A unitary AC metal-enclosed switchgear

technical field

The utility model belongs to the technical field of power distribution equipment, in particular to a unit type AC metal-enclosed switchgear.

Background technique

The unit type AC metal-enclosed switchgear is suitable for AC 50HZ, 12KV power distribution network for receiving and distributing electric energy. Especially in the protection of distribution transformers (2000KVA) below, it is more superior than vacuum circuit breaker cabinets, and is widely used in residential quarters, commercial plazas, industrial and mining enterprises, box-type substations and other fields. At present, the AC used in various substations Metal-enclosed switchgear is bulky and the operating system is complex. The mechanical interlock is unreliable, the safety performance is poor, it takes up a lot of space, the pressure relief is not safe, and the reliability of use is poor.

Contents of the invention

The utility model aims at the above problems and provides a unit type AC metal-enclosed switchgear with high safety and simple structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme. The utility model includes a cabinet body. The upper part of the cabinet body is provided with a horizontal partition. The interior of the cabinet above the horizontal partition is a busbar room. There are side partitions around the inside of the body, and the inner side of the side partition is the cable room; the front side of the bus room is provided with a vertical partition, and the end of the cabinet in front of the vertical partition is provided with an upper door, and the vertical partition and the upper door are Mechanism room; a load switch is set on the transverse partition, an upper pressure relief plate is set on the side wall of the busbar room, and the operating mechanism of the load switch is set in the mechanism room; the lower end of the cable room is a bottom plate, and a cable clamp is set on the bottom plate. There is a grounding switch on the side wall of the room, and a lower pressure relief plate is set on the side partition, and a lower door is set at the end of the cabinet in front of the cable room; the cable clamp is connected to the lower end of the cable, and the upper end of the cable is connected to the lower end of the vertical fuse , the lower end of the vertical fuse is connected to the grounding switch through the transverse insulator, and the upper end of the vertical fuse is connected to the load switch.

As a preferred solution, the load switch described in the utility model adopts SF6 load switch.

As another preferred solution, the cable clamp described in the utility model is arranged on the bottom plate through a tower-shaped sealing rubber ring.

As another preferred solution, the operating shaft of the earthing switch of the utility model is interlocked with the operating mechanism of the load switch and the lower door respectively.

As another preferred solution, the lower end of the upper door of the utility model is provided with a transverse opening, and a sliding lock plate is provided in the opening, and a lock hole corresponding to the operating port of the operating mechanism of the load switch is provided on the upper part of the lock plate. The plate is interlocked with the operating mechanism of the load switch.

Secondly, the upper door of the utility model is provided with a charging display indicating that the load switch is switched on and charged.

In addition, the cabinet body of the utility model adopts aluminum-zinc coated boards, and the horizontal partitions, side partitions and vertical partitions all use metal partitions.

The utility model has beneficial effects.

The side wall of the busbar chamber of the utility model is provided with an upper pressure relief plate, and the side partition is provided with a lower pressure relief plate; the pressure can be released in time to ensure the safety of operators.

The utility model is a mechanism room between the vertical partition and the upper door, and the operating mechanism of the load switch is arranged in the mechanism room, and the lower door is arranged at the end of the cabinet in front of the cable room; the structure is simple, the operation is flexible, and the installation is convenient.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. The scope of protection of the utility model is not limited to the expression of the following content.

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

Fig. 2 is a side view of the utility model.

Fig. 3 is a schematic diagram of the structure of the cable room of the present invention.

Fig. 4 is a structural schematic diagram of the lock plate of the present invention.

In the figure, 1 is the cabinet, 2 is the bus room, 3 is the load switch, 4 is the transverse partition, 5 is the side partition, 6 is the cable room, 7 is the mechanism room, 8 is the fuse, 9 is the operation shaft, 10 is the grounding switch, 11 is the operating mechanism, 12 is the live display, 13 is the mechanical interlock, 14 is the door interlock, 15 is the upper pressure relief plate, 16 is the lower pressure relief plate, 17 is the lower door, 18 is the upper door, 19 is Lock plate, 20 are cable clamps, 21 are tower-shaped sealing rubber rings, 22 are base plates, 23 are main busbars, 24 are door locks, 25 are vertical partitions, 26 are handles, 27 are cables, and 28 are keyholes.

Detailed ways

As shown in the figure, the utility model includes a cabinet body. The upper part of the cabinet body is provided with a horizontal partition. The interior of the cabinet above the horizontal partition is a busbar room. The inner side of the side partition is the cable room; the front side of the busbar room is provided with a vertical partition, and the end of the cabinet in front of the vertical partition is provided with an upper door, and between the vertical partition and the upper door is the mechanism room; the horizontal partition is set There is a load switch, the upper pressure relief plate is set on the side wall of the busbar room, and the operating mechanism of the load switch is set in the mechanism room; the lower end of the cable room is a bottom plate, and a cable clamp is set on the bottom plate, and a grounding switch is set on the side wall of the cable room , the side partition is provided with a lower pressure relief plate, and the end of the cabinet in front of the cable room is provided with a lower door; the cable clamp is connected to the lower end of the cable, the upper end of the cable is connected to the lower end of the vertical fuse, and the lower end of the vertical fuse passes through the horizontal The insulator is connected with the grounding switch, and the upper end of the vertical fuse is connected with the load switch.

The upper pressure relief plate is used to release the gas pressure when an arc accident occurs in the busbar chamber, and the lower pressure relief plate is used to release the gas pressure when an arc accident occurs inside the cable chamber.

The load switch adopts SF6 load switch; the safety is high.

The cable clamp is arranged on the bottom plate through the tower-shaped sealing rubber ring. The tower-shaped sealing rubber ring can be used to seal and fasten the cables, and the wiring space is large.

The operating shaft of the grounding switch is interlocked with the operating mechanism and the lower door of the load switch respectively.

The lower end of the upper door is provided with a transverse opening, the opening is provided with a sliding lock plate, and the upper part of the lock plate is provided with a lock hole corresponding to the operating port of the operating mechanism of the load switch, and the lock plate is interlocked with the operating mechanism of the load switch.

A charged display indicating that the load switch is closed and charged is arranged on the upper door.

The cabinet body is made of aluminum-zinc plate, and the horizontal partitions, side partitions and vertical partitions are all made of metal partitions.

The working process of the present utility model is illustrated below in conjunction with accompanying drawings.

Closed position: The grounding switch is in the disconnected position, the lower door is interlocked to lock the lower door, and the lock plate is moved to the lock hole to align with the closed position of the operating mechanism of the load switch. The operating port is inserted into the operating mechanism for closing operation. After the switch is closed, the lock plate is interlocked and locked, the charged display shows that the light is on, the lower door cannot be opened, and the grounding switch cannot be operated.

Disconnected position: the lock plate lock hole is aligned with the closing position of the operating mechanism of the load switch, and the handle is inserted into the operating mechanism to perform the opening operation, the lock plate is interlocked and unlocked, and the indicator light of the charged display is off.

Grounding position: The load switch is disconnected, the lock plate is interlocked and unlocked, the lock plate is moved to the lock hole and aligned with the ground position of the operating mechanism, and the handle is inserted into the operating mechanism for operation. The door opens.

It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solutions described in the embodiments of the utility model. Those of ordinary skill in the art should understand that the utility model can still be Modifications or equivalent replacements are carried out to achieve the same technical effect; as long as the needs of use are met, they are all within the protection scope of the present utility model.

Claims (7)

1. a kind of modular ac metal closing switch gear, comprise cabinet, it is characterized in that cabinet internal upper part is provided with lateral partitions, the cabinet inside above lateral partitions is bus-bar room, the surrounding of the cabinet inside below lateral partitions is provided with side dividing plate, is cable vault inside the dividing plate of side; The front side of bus-bar room is provided with vertical clapboard, and the cabinet end in vertical clapboard front is provided with visits, vertical clapboard and be mechanism chamber between visiting; Lateral partitions is provided with on-load switch, the sidewall of bus-bar room is provided with top pressure relief plate, in mechanism chamber, be provided with the operating mechanism of described on-load switch; Lower end, cable vault is base plate, and base plate is provided with cable cleat, and cable vault's sidewall is provided with earthed switch, and described side dividing plate is provided with bottom pressure relief plate, and the cabinet end in front, cable vault is provided with Xiamen; Cable cleat is connected with cable lower end, and cable upper end is connected with vertical fuse lower end, and vertical fuse lower end is connected with earthed switch by lateral isolation, and vertical fuse upper end is connected with described on-load switch.

2. according to claim 1, a modular ac metal closing switch gear, is characterized in that described on-load switch adopts SF6 on-load switch.

3. according to claim 2, a modular ac metal closing switch gear, is characterized in that described cable cleat is arranged on base plate by turriform O-ring seal.

4. a modular ac metal closing switch gear according to claim 3, the operating axis that it is characterized in that described earthed switch respectively with operating mechanism, the lower gate interlock of described on-load switch.

5. a kind of modular ac metal closing switch gear according to claim 4, lower end of visiting described in it is characterized in that is provided with transverse opening, slip jam plate is provided with in opening, jam plate top is provided with the lockhole corresponding with the gathering hole of the operating mechanism of described on-load switch, and the operating mechanism of jam plate and on-load switch is interlocked.

6. according to claim 5, a modular ac metal closing switch gear, be provided with the described on-load switch of instruction and close a floodgate charged electrification display described in it is characterized in that on visiting.

7. according to claim 6, a modular ac metal closing switch gear, it is characterized in that described cabinet adopts aluminizing zine plate, lateral partitions, side dividing plate and vertical clapboard all adopt metal partion (metp).