40.5KV Series Inflatable Cabinets High Voltage Switchgear

Experience the forefront of power distribution technology with Kexunan's 40.5KV Series Inflatable Cabinets High Voltage Switchgear. As a leading innovator in the field, our switchgear, proudly crafted by Kexunan in China, sets new standards for reliability and efficiency. Contact us today to request a quotation and discover our competitive prices. At Kexunan, we prioritize delivering cutting-edge high voltage solutions at a price that aligns with your budget. Choose Kexunan for excellence, innovation, and cost-effective solutions in high voltage switchgear, all proudly made in China.

Compared with the low-priced 10KV ring main unit converted into a 35KV ring main unit currently on the market, the advantages of the company's self-designed C-GIS-630A product are analyzed as follows:

1. The closing power of the original 10KV operating mechanism is less than 2 kN, the circuit breaker contact compression spring is within 1.2 kN, the total switch stroke is within 10.5 mm, the distance between the hexagonal insulated transmission shafts is 150 mm, and the hexagonal resin insulated shafts tip The angle can be satisfied within the 10KV electric field partial discharge range. The 25# hexagonal resin shaft can meet the mechanical wear test of this transmission force. The transmission structure layout and core stress points are designed and finalized according to this principle.

2. 35KV: Not counting 1250A-31.5KA, the internal distance of the 630A-20KA switch must be at least 20 mm, the contact is more than 2500 N, and the total switch stroke is more than 20 mm. With such a large stroke and closing load force, the original 10KV cam drive and the original 10KV hexagonal resin insulated shaft were used. First, the mechanism cannot meet the closing work requirements. Secondly, the stroke cannot meet the requirements. Thirdly, the mechanical transmission wear of the hexagonal insulated shaft cannot be met. FullSuppose, the hexagonal angle, is operated long at a 35KV voltage level. In that case, the hexagonal angle will produce partial discharge, and achieving the 185 lightning impact test is impossible. This 10KV transmission method will directly impact if the air box is slightly deformed during transportation or on-site. The reliability of the resounding opening and closing operation cannot meet the requirements of 20KA breaking and opening.

3. The new C-GIS is a special switch inflatable cabinet developed and designed according to the 35KV-63-25KA summary plan and under the performance of this switch's current and voltage level. It has a modular structure layout, internal design, double fractures and three Workstation isolating switch, vacuum arc extinguishing type vacuum circuit breaker circuit, the vacuum arc extinguishing chamber of the circuit breaker is installed with an insulating barrel, and the three-phase pull rod is made of 30 large diameter steel rods for linear transmission, which completely avoids the above problems of the hexagonal resin insulating rods. There is a problem that reduces the mechanical loss of the original rotation scheme's closing power and ensures the body's stability: The operating mechanism adopts a large modular arm with a closing power of more than 4500 N. The closing power is enough to drive four 800 cattle gateUnder the spring, the closing time is increased to within 40ms, the opening time can be achieved within 20ms at the fastest, and the bounce of the switch closing contact is within 2mS, ensuring the reliable operation of the switch under any conditions and ensuring the 25KV breaking capacity.

40.5KV Series Inflatable Cabinets High Voltage Switchgear Overview:

TRD-DFW-40.5/630-25 series inflatable cabinets provide 10 standard combinations, which can adapt to the application requirements of most 36~40.5kV power distribution networks. The TRD-DFW-40.5/630-25 is a compact switchgear that offers almost any combination of selected functional units.

The TRD-DFW-40.5/630-25 series has interfaces and user interfaces, providing complete switching application solutions in 36~40.5kV secondary power distribution networks.

The stainless steel air chamber of the TRD-DFW-40.5/630-25 series is filled with SF6 gas to seal the live parts and switch and isolate them from the outside world. This fully sealed system protects internal switches and live parts from changes in the external environment, ensuring high reliability, personnel safety and virtually maintenance-free operation.

The insulated busbars and bushings are all made of high-quality domestic brands, Xi'an Shendian and Shenzhen Wall - one of the main core components of the 35KV inflatable cabinet.

40.5KV Series Inflatable Cabinets High Voltage Switchgear Applicable places

◇ Compact secondary substation

◇ Small industrial and mining enterprises

◇ Wind power plant

◇ Hotels, shopping malls, office buildings, commercial centres, etc.

Basic Scheme

Technical Parameter

Typical configuration: