CN204304298U - A kind of box-shaped fixed type alternating current metal closed switch - Google Patents

Abstract

The utility model relates to a box-type fixed AC metal-enclosed switchgear, which comprises a low-voltage box room, a high-voltage box room, a base and a top cover. The high-voltage box room is respectively connected with the base and the top cover. Connect and connect with the top cover. There is at least one partition in both the low-voltage chamber and the high-voltage chamber. At least 4 connecting holes are evenly distributed on the inner and outer surfaces of the side panels of the low-voltage chamber and the high-voltage chamber, and are positioned through the connecting holes. Column connection, connecting the end of the positioning column to the base, the top to the top cover, the base is provided with at least 3 cable holes, the lower surface is provided with a support block, and the upper surface of the top cover is provided with a ventilation fan. Compared with the traditional switchgear, this new type has a simple and compact structure, greatly reduced volume and self-weight, and has the advantages of flexible and convenient structural assembly and disassembly, so that on the one hand, the installation and transfer capacity of the switchgear is greatly improved, and on the other hand, it also helps Reduce the difficulty of equipment repair and maintenance construction.

Description

A box-type fixed AC metal-enclosed switchgear

technical field

The utility model relates to a box-type fixed AC metal-enclosed switchgear, which belongs to the technical field of high-voltage switchgear equipment.

Background technique

The box-type fixed AC metal-enclosed switchgear currently used is the most commonly used indoor complete power distribution device, which can be widely used in the introduction and distribution of power in large-voltage 50Hz three-phase AC power supply systems, and at the same time can protect the circuit airway , monitoring and other functions to ensure the safety and stability of power supply, so it is often necessary to install multiple electrical components and equipment inside, and requires high-voltage circuits and low-voltage circuits to run at the same time, so in order to ensure the safety of power supply, the currently used in the design When the structural design is unreasonable, the volume of the equipment is blindly increased, and the disassembly and installation are extremely difficult, which leads to the inconvenience of the current box-type fixed AC metal-enclosed switchgear for transportation, installation and daily maintenance. The box-type fixed AC metal-enclosed switchgear structure is scientifically and reasonably re-practiced to overcome many shortcomings in current use.

Contents of the invention

Aiming at the deficiencies in the prior art, the utility model provides a box-type fixed AC metal-enclosed switchgear. Compared with the traditional switchgear, the utility model has a simple and compact structure, a large reduction in volume and dead weight, and has structural assembly The disassembly is flexible and convenient, which greatly improves the installation and transfer capacity of switchgear on the one hand, and helps to reduce the difficulty of equipment repair and maintenance construction on the other hand.

In order to achieve the above object, the utility model is realized through the following technical solutions:

A box-type fixed AC metal-enclosed switchgear, characterized in that it includes a low-voltage box room, a high-voltage box room, a base and a top cover, and the low-voltage box room and the high-voltage box room are both rectangular formed by columns and side plates Cavity structure, the high-voltage chamber is connected to the base and the top cover respectively, the low-voltage chamber is connected to the side of the high-voltage chamber and connected to the top cover, and the low-voltage chamber and the high-voltage chamber are connected to each other , the low-voltage chamber and the high-pressure chamber are provided with at least one partition, the partition is slidably connected to the side plate, and the inner surface and the outer surface of the side plate of the low-voltage chamber and the high-pressure chamber are at least evenly distributed with 4 connection holes, and the connection holes of the low-voltage chamber and the high-voltage chamber are distributed coaxially, and are connected to the connection positioning column through the connection hole; the end of the connection positioning column is connected to the base, and the connection positioning column The top end is connected to the top cover, the base is provided with at least 3 cable holes, the lower surface of the base is provided with a support block, the upper surface of the top cover is provided with a ventilation fan, and the high-voltage box is respectively provided with partitions. Circuit breaker, upper isolating switch, lower isolating switch, grounding switch, current transformer, main busbar and branch busbar, relay protection element, operation switch, indicator light and monitoring equipment are respectively installed in the low-voltage box chamber through the partition.

Further, at the connection between the high-pressure chamber and the top cover, a pressure release device is additionally provided on the top cover.

Further, observation windows are provided on the low-voltage chamber and the high-voltage chamber.

Further, a high-voltage insulating gasket is provided at the contact surface between the low-voltage chamber and the high-voltage chamber.

Compared with the traditional switchgear, this new type has a simple and compact structure, greatly reduced volume and self-weight, and has the advantages of flexible and convenient structural assembly and disassembly, so that on the one hand, the installation and transfer capacity of the switchgear is greatly improved, and on the other hand, it also helps Reduce the difficulty of equipment repair and maintenance construction.

Description of drawings

The utility model is described in detail below in conjunction with accompanying drawing and specific embodiment;

Figure 1 is a schematic diagram of the new structure.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

A box-type fixed AC metal-enclosed switchgear as shown in Figure 1, including a low-voltage box room 1, a high-voltage box room 2, a base 3 and a top cover 4, the low-voltage box room 1 and the high-voltage box room 2 are composed of a column 5 and the rectangular cavity structure formed by the side plate 6, the high-voltage chamber 2 is connected with the base 3 and the top cover 4 respectively, and the low-voltage chamber 1 is connected with the side surface of the high-voltage chamber 2 and connected with the top cover 4.

In this embodiment, the cavities of the low-voltage chamber 1 and the high-voltage chamber 2 are connected to each other, and at least one partition 7 is provided in the low-voltage chamber 1 and the high-pressure chamber 2, and the partition 7 is slidably connected with the side plate 6 , at least four connecting holes 8 are evenly distributed on the inner surface and outer surface of the side plate 6 of the low-voltage chamber 1 and the high-voltage chamber 2, and the connecting holes 8 of the low-voltage chamber 1 and the high-voltage chamber 2 are coaxially distributed, and through the connecting holes 8 and The connecting positioning column 9 is connected, the end of the connecting positioning column 9 is connected with the base 3, and the top end is connected with the top cover 4.

In this embodiment, at least three cable holes 10 are provided on the base 3 , a support block 11 is provided on the lower surface, and a ventilation fan 12 is provided on the upper surface of the top cover 4 .

In this embodiment, a circuit breaker 13, an upper isolating switch 14, a lower isolating switch 15, a grounding switch 16, a current transformer 17, a main bus 18 and a branch bus 19 are respectively provided in the high-voltage chamber 2 through a partition 7, The low-voltage chamber 1 is provided with a relay protection element 20, an operation switch 21, an indicator light 22 and a monitoring device 23 through a partition 7, respectively.

In this embodiment, at the joint between the high-pressure chamber 2 and the top cover 4 , a pressure release device 24 is additionally provided on the top cover 4 .

In this embodiment, the low-voltage chamber 1 and the high-voltage chamber 2 are provided with observation windows 25 .

In this embodiment, a high-voltage insulating gasket 26 is provided at the contact surface between the low-voltage chamber 1 and the high-voltage chamber 2 .

Compared with the traditional switchgear, this new type has a simple and compact structure, greatly reduced volume and self-weight, and has the advantages of flexible and convenient structural assembly and disassembly, so that on the one hand, the installation and transfer capacity of the switchgear is greatly improved, and on the other hand, it also helps Reduce the difficulty of equipment repair and maintenance construction.

The connection relationship and connection requirements between the circuit components in the low-voltage chamber and the high-voltage chamber are well-known technologies in the technical field, and will not be described in this application document.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (4)

1. a box-shaped fixed type alternating current metal closed switch, it is characterized in that: it comprises low-pressure cabinet room, high-voltaghe compartment room, base and top cover, described low-pressure cabinet room and the high-voltaghe compartment room rectangular cavities structure all for being made up of column and side plate, described high-voltaghe compartment room is connected with base and top cover respectively, described low-pressure cabinet room is connected with the side of side, high-voltaghe compartment room and is connected with top cover, be interconnected between described low-pressure cabinet room and high-voltaghe compartment chamber body, described low-pressure cabinet room and high-voltaghe compartment indoor are all at least provided with one piece of dividing plate, described dividing plate and side plate are slidably connected, the side wall inner surfaces of described low-pressure cabinet room and high-voltaghe compartment room and outer surface are respectively at least evenly equipped with 4 connecting holes, and the connecting hole of described low-pressure cabinet room and high-voltaghe compartment room coaxially distributes, and by connecting hole be connected locating dowel and connect, the end of described connection locating dowel is connected with base, the top of described connection locating dowel is connected with top cover, described base establishes at least 3 cable aperture, the lower surface of described base is provided with back-up block, the upper surface of described top cover is provided with ventilation blower fan, breaker, upper isolating switch, lower isolating switch, earthed switch, current transformer, main bus-bar and branch bar are established respectively by dividing plate in described high-voltaghe compartment indoor, and relay protection element, console switch, indicator lamp and watch-dog are established respectively by dividing plate in described low-pressure cabinet indoor.

2. a kind of box-shaped fixed type alternating current metal closed switch according to claim 1, is characterized in that, described high-voltaghe compartment room and top cover junction, top cover separately establishes pressure relief device.

3. a kind of box-shaped fixed type alternating current metal closed switch according to claim 1, is characterized in that, observation window is all established in described low-pressure cabinet room and high-voltaghe compartment room.

4. a kind of box-shaped fixed type alternating current metal closed switch according to claim 1, is characterized in that, described low-pressure cabinet room and contact surface place, high-voltaghe compartment room establish High-Voltage Insulation pad.