Qingchang Electric Power seizes market opportunities again - the company's environmentally friendly ring network cabinet research and development has achieved complete success!
Qingchang Electric Power seizes the market opportunity again
——The company's environmentally friendly ring network cabinet R&D has achieved great success!
In order to further expand the market share of ring network switch cabinets and accelerate the company's technological transformation into productivity. In September 2015, the company officially launched the R&D work for environmentally friendly gas switch cabinets, led by dozens of senior technical personnel from the company. After hundreds of tests and inspections, and more than a year of effort, with an investment of 2 million RMB, the R&D work for the environmentally friendly gas ring network switch cabinet was successfully completed by September 30, 2016, passing the type test and obtaining the inspection report from the National Electrical Product Quality Supervision and Inspection Center.
Due to the pollution caused by SF6 leakage in traditional gas switches, the state has added the requirement for SF6-free ring network cabinets in the "Standard Material Catalog for Distribution Network Construction and Renovation (2015 Edition)". Improving the market usage rate of SF6-free or low SF6 gas metal-enclosed switchgear has become a consensus for the development of the ring network switch cabinet market.
The environmentally friendly gas switch cabinet independently developed by the company is another technological leap based on the previous R&D of solid insulated ring network cabinets. It features a small size, light weight, intelligence, safety, and environmental protection, designed for 6-24KV distribution networks. The green environmentally friendly box-type fixed switch cabinet is composed of modular components such as vacuum circuit breakers, load switches, fuses, busbars, and cable terminals. It uses clean air as the insulating medium, replacing the SF6 gas in traditional switches, and employs non-metallic materials as supporting structural components, organically combining the vacuum arc extinguishing chamber, main conductive circuit, and insulating support into a whole, sealed in a gas box made of welded 304 stainless steel plates, achieving the goals of pollution-free, miniaturization, full sealing, and maintenance-free.
Main structure of the product: The circuit breaker (or load switch) is designed as a separate switch module, with the circuit breaker (or load switch) using a vacuum arc extinguishing chamber as the main switch; the isolating switch is a knife switch, and it can achieve three positions for the isolating switch: grounding, isolation, and closing. The isolation can be grounded for convenient and safe maintenance. The operating mechanism uses a spring operating mechanism, which is safe and reliable. To meet different user needs, designs for combined electrical schemes, busbar lifting cabinet schemes, and PT cabinet schemes are provided. Except for the larger outer box of the combined electrical scheme, the outer boxes of the other schemes are unified to one size specification, and all schemes use 304 stainless steel plates for the gas box, with the outer wrapping plate made of 2.0 aluminum-zinc plate, meeting the requirements of standardization, modularization, and serialization, while achieving product miniaturization.
The ring network cabinet using industrial-grade clean air as the insulating material ensures the efficiency and reliability of the switch equipment while further reducing carbon emissions. Compared to traditional ring network cabinets, it has achieved significant breakthroughs. First, the insulating performance of clean air is superior to that of nitrogen. It is widely recognized in the industry that under the same gas pressure, the insulating performance of nitrogen is only 70% of that of air. Second, the clean air cabinet uses a circuit breaker scheme instead of a combined electrical scheme, achieving comprehensive cost savings while increasing product reliability. Currently, there are very few manufacturers capable of developing clean air insulation technology both domestically and internationally. Clean air insulated cabinets will become one of the mainstream products in the future environmental protection market. The initial cost of the product is between that of SF6 gas insulated cabinets and solid insulated cabinets, and if widely promoted, it will quickly be able to match the cost of SF6 ring network cabinets.
For China's distribution network, environmentally friendly gas insulated ring network cabinets are a new term. According to relevant statistics, by 2015, the total number of ring network cabinets in the high-voltage switch industry was around 300,000 units, with a market space of 75,000 units for solid insulated ring network cabinets, and the actual demand is expected to exceed this number. It is estimated that by 2018, gas insulated ring network cabinets will account for 65% of the total usage of ring network cabinets, and environmentally friendly ring network cabinets will account for 30% of the total usage of ring network cabinets. As time goes on, environmentally friendly ring network cabinets will gradually become the mainstream of the ring network cabinet market, with huge growth potential in the future.
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