What are the main accessories of the inflatable cabinet?

Landlord: There are still many types of accessories composed of inflatable cabinets, such as the following:

Switches, cabinets, accessories, etc. Shenzhen Kehangxing is to make inflatable cabinet accessories, reliable quality, low cost, inflatable cabinet product performance is stable, time-saving and labor-saving.

SF6 load switch is a switch with an arc extinguishing cover into the box filled with SF6 gas, the box is generally made of epoxy resin shell, there are observation holes on the shell, the position of the observation switch is observed, there is a pressure gauge and an inflatable hole to monitor the pressure of SF6 gas, and there is a connection terminal of the load switch above the epoxy resin shell, and the connection terminal is connected with the horizontal bus outside the box, and the structure imitates the products of ABB company.

Inflatable cabinets are divided into:

Semi-inflatable ring main unit: refers to the switch cabinet where only the load switch is placed in the inflatable chamber. The switch cabinet is divided into two units, the upper unit is installed with a horizontal bus, an inflatable SF6 load switch, an operating mechanism and an instrument room, and the lower unit is a cable room, with cable heads, grounding switches, etc.

Fully inflatable ring network switchgear: the switch, circuit breaker, contactor and bus are installed in the stainless steel sealed box, the box is filled with SF6 gas, the fuse, lightning arrester, voltage transformer is connected with the proprietary interface, but not placed in the closed box, and the cable connected to the outside world is connected by a special plug joint. Its biggest feature is that the horizontal bus is installed in the inflatable chamber, all functional units, such as the incoming unit, the feeder unit, etc., share an inflatable chamber, and the operating mechanism is outside the box, C-GIS cabinet:

It is somewhat similar to the fully inflatable ring main unit, but the rated current of the fully inflatable ring main unit is only 630A, and the rated current of the C-GIS cabinet is much larger, mostly 1250-2500A, C-GIS is a new technology product formed by the expansion of high-voltage GIS products to the field of medium-voltage switchgear, which will be used in the switchgear (substation or part of the opening and closing station, as the power supply of the distribution network) or the ring main unit (used in the distribution network, including the switchgear used on the load receiving side) The main component of the primary circuit is installed in a sealed metal box, filled with low-pressure gas (SF6 gas, SF6 gas mixed gas or nitrogen, etc.) as an insulating medium, because it has the advantages of waterproof, dustproof, not affected by atmospheric environmental conditions, small size, high operation reliability, etc., it has gradually become the mainstream medium voltage switchgear.

GIS device refers to SF6 gas-insulated metal-enclosed switchgear with the above voltage level, also known as enclosed combined electrical appliances.

The difference between GIS device and C-GIS: 1. The circuit breaker in the GIS device is SF6 circuit breaker, while the circuit breaker in the C-GIS cabinet is mostly vacuum circuit breaker, not by SF6 gas arc extinguishing in the cabinet. 2. GIS device has no pressure release device, C-GIS has pressure release device.

3. The GIS device is installed and debugged on site, and the C-GIS cabinet is filled with SF6 gas before leaving the factory. 4. There is also a difference in secondary control.

The inflatable cabinet is a new generation of switchgear for indoor AC high-voltage gas-insulated metal-enclosed switchgear.

The main switch of the inflatable cabinet can be used with a vacuum circuit breaker with a permanent magnet mechanism.

It is also possible to use a vacuum circuit breaker with a spring mechanism, and the whole cabinet is insulated with air insulation and sulfur hexafluoride gas.

The combination of compartments is compact and expandable, making it suitable for distribution automation. The inflatable cabinet has the characteristics of compact structure, flexible operation and reliable interlocking, and can provide satisfactory technical solutions for various applications (especially places with harsh environments) and different user requirements.

The use of sensing technology and the latest protection relays, coupled with advanced technical performance and lightweight and flexible assembly solutions, can fully meet the different needs of users. Inflatable cabinets are suitable for power systems.

The small secondary substation, opening and closing station, and box-type substation are stared at.

Residential quarters, industrial and mining enterprises, large shopping malls, especially suitable for airports, subways, railways and other occasions with high requirements for electricity.

Use environment

1. Ambient air temperature: up to 40, (24h average.)

no more than 35), minimum - 25;

2. Altitude: no more than 3000m (coordinate with the manufacturer when exceeding 3000m)

3. Air humidity.

Daily relative humidity.

The average value is not more than 95%, and the average monthly relative humidity is not more than 90%;

4. Electromagnetic interference induced in secondary systems.

does not exceed.

The inflatable cabinet is a new generation of switchgear, the main switch can be used with a permanent magnet mechanism vacuum circuit breaker or a spring mechanism vacuum circuit breaker, the whole cabinet is combined with air insulation and sulfur hexafluoride gas compartment, which is compact and expandable, and is suitable for power distribution automation.

An inflatable cabinet is a high-voltage component such as a busbar, circuit breaker, disconnector, transformer, etc., which is sealed in a shell filled with lower pressure (or other gases.

Inflatable cabinets offer many advantages, the biggest of which is that they are not affected by the external environment such as condensation, filth, small animals and chemicals. Another advantage is the use of compressed gas insulation (e.g. SF6, N, or air), which favors the development of miniaturization.

The inflatable cabinet has oil-free switches with good performance, especially the maintenance-free or low-maintenance vacuum switches, which greatly reduces the maintenance and overhaul workload.

Shenzhen Kehangxing is a professional manufacturer of a full set of inflatable cabinet accessories, the original assembly of the original and assembly completely produced by itself, can fully meet the needs of customers.

<>1. The inflatable cabinet is a new generation of switchgear. The main switch can be used with a permanent magnet mechanism vacuum circuit breaker, but also with a spring mechanism vacuum circuit breaker, the whole cabinet is combined with air insulation and sulfur hexafluoride gas compartment before dismantling, compact and expandable, suitable for power distribution automation.

2. The inflatable cabinet has the characteristics of tight structure, flexible operation, reliable interlocking, etc., and can provide satisfactory technical solutions for various applications and different requirements of Li Yuhail households.

Inflatable cabinets are a new generation of switchgear. The main switch can be used with a permanent magnet mechanism vacuum circuit breaker, but also with a spring mechanism vacuum circuit breaker, the whole cabinet with air insulation and sulfur hexafluoride gas compartment combined, compact and expandable, suitable for distribution automation. The inflatable cabinet has the characteristics of compact structure, flexible operation, reliable interlocking, etc., and can provide satisfactory technical solutions for different applications and different user requirements of various sensitive ears.

Leading manufacturers at home and abroad have adopted modern processing equipment, processing technology and welding technology. For example, European products with more SF6 gas are used, they have advanced inflatable tanks and first-class quality monitoring technology, and the box-type shell is welded by robots, with no air leakage and a small footprint. The mainstream factory bridge Li Bushang in China also rose up to meet the challenge, using advanced plate cutting, bending and welding equipment, the sealing box adopts thin stainless steel welding structure, and uses laser welding, helium mass spectrometry leak detection and other technologies to improve the accuracy and rigidity of the sealed box and reduce the air leakage rate.

Thus, the cabinet structure is developed into an armored cabinet with flexible combination and better performance, each air chamber is independent, and the circuit breaker air chamber and bus air chamber constitute a building block structure, so that the combination of single bus and double bus is flexible.

Landlord: inflatable cabinet is power supply and distribution equipment, there are load switches or circuit breakers, etc., outgoing lines can control transformers, Shenzhen Kehangxing is the best inflatable cabinet accessories, with its accessories composed of inflatable cabinets, will play a good role in protection, the cost is also low, however, inflatable switch cabinet, also called GIS, which is generally SF6 gas (sulfur hexafluoride gas), sealing SF6 gas requires the use of seals, seals generally use EPDM rubber, high-end fluorosilicone rubber.

Landlord: The range of inflatable cabinets is very wide, generally can be used in the power system of small secondary substations, opening and closing stations, box-type substations, residential quarters, industrial and mining enterprises, large shopping malls, etc., Shenzhen Kehang Xing is to do the charging and training brigade disperse cabinet accessories, its accessories of the town of the fan composed of inflatable cabinets are more suitable for the current airport, subway, railway and other occasions with higher requirements for electricity consumption.