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How to choose the sizes of flat copper busbar?

Standard Copper Bar Current Capacity Estimation method: Single copper bus bar current capacity= width(mm)*thickness coefficient Double copper bus bar current capacity= width(mm)*thickness coefficient*1.5 (empirical coefficient) Copper bar and aluminum bar can also be estimated as square terms, usually copper should be 5-8A/sq, Aluminum should be 3-5A/sq.   Common copper bar current capacity method: Copper bar current capacity when 40℃ = bar width(mm)*thickness coefficient (thickness coefficient is 20 when bar width is 12(mm);it is 18 when bar width is 10; it is successively: [12-20,10-18,8-16,6-14,5-13,4-12] Double copper bars[40℃]=(1.56-1.58)*single copper bar[40℃] (according to the size of section) Three layers copper bars[40℃]=2*single copper bar[40℃] Four layers copper bars 40[℃]=2.45*single copper bar[40℃] (not suggested option,replacing with special bus bar is better.) Copper bar[40℃]=0.85*copper bar[25℃] Aluminum bar [40℃] =1.3*copper bar[25℃] For example: To count the 100*10 section copper bar current capacity, One layer:100*18=1800(A) Two layers:Current Capacity of 2( 100*10) is :1860*1.58=2940(A) Three layers:Current Capacity of 3( 100*10) is :1860*2=3720(A)   Common copper bar sizes and current capacity form: Rectangular copper bar        Copper conducting wire current capacity Drawer conducting wire choosing standard

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When the terminal can be high waterproofed

When the terminal can do a high waterproof effect of the function We feel that the terminal features more, a wide range of applications, it can easily face the harsh installation environment, dust, shock, corrosion, water, dust, etc., but the most difficult to reach the terminal is the high waterproof effect Function. This is the terminal R & D personnel to try to break the problem. Since the terminal can not be a high waterproof function, then this high waterproof function temporarily by whom to replace it? That is the waterproof connector. General waterproof connector made of high quality zinc alloy die-casting, gold processing, the surface is generally used galvanized or hard chrome plating treatment, beautiful appearance, compact structure, no pores, high strength, connected with the pipeline when there is a good seal, At the same time both anti-shock, anti-corrosion, waterproof, dust and so on. Terminal parameters before we have introduced, and now we have to understand the technical parameters of this connector. His working temperature: static (-40 degrees Celsius – +100 degrees Celsius up to +120 degrees Celsius, dynamic (-20 degrees Celsius – +80 degrees Celsius short time up to +120 degrees Celsius); terminal flame retardant grade can reach V0, …

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The new electric air pressure technology allows hydrogen fuel cell power output to double

Recently, the British Aeristech announced that it is developing a new type of electric air pressure technology, through the application of this technology can hydrogen fuel cell output power doubled. This will not only help automakers improve the overall performance of the vehicle, but also make the appearance of the fuel cell more compact, thus further improving the fuel cell packaging process and the overall weight. Aeristech’s electric air compressor uses an aluminum turbocharged compressor, and the machining tolerances of the compressor are in line with the tolerances of mass production in the automotive industry. In addition, the compressor is also connected directly to a high-speed motor, with no conventional gearbox mechanism. From the design of the new electric air compressor design can be seen with the traditional Roots pump, screw pump booster in the structural design there is a considerable difference. In addition, Aeristech has developed and developed a 10-kilowatt fuel cell air compressor with the support of the “Innovative UK” organization, formerly known as the British Technology Strategy Committee. The London Imperial College in the project is responsible for the design of the compressor, where the compressor can withstand long periods of high pressure in large flow conditions. …

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Good sales market of new energy vehicles

Good sales market of new energy vehicles,five stocks of capital more than 200 million USD Tesla become a hot topic throughout the area and this week by the supply of new energy vehicles in sales are soaring, from June 12 information issued by the China association of automobile manufacturers, new energy vehicles may both production were higher than the same period last year, year-on-year growth of 38.2% and 38.2% respectively. In the first five months of the year, the production of new energy vehicles was 147,000 and 136,000, up 11.7% and 7.8% year on year. Specific data show that this new energy automobile 128 stocks of the communist party of China has 60 implementation state of net inflows, and the green beauty (002340), zhongke three-ring (000970), yutong bus (600066), byd (002594), three flowers intelligence control (002050), and other five stocks into the amount all over million, the specific amount, respectively 217 million, 139 million, 112 million, 139 million, 112 million. The inflow of such inflows as the national high school (002074), kang xin (002450) and fang zheng motor (002196) were closely followed by 94.76 million, 93.79 million, and 624.8 million. The net inflow of yian technology (300328) this week was …

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New energy vehicles in the six categories

New energy vehicles refers to the use of unconventional vehicle fuel as a power source (or the use of conventional vehicle fuel, but the use of new vehicle power plant), integrated vehicle power control and drive the advanced technology, the formation of advanced technology, With new technology, new structure of the car. New energy vehicles include: hybrid cars (hev), pure electric vehicles (bev), fuel cell vehicles (fcev), hydrogen engine cars and gas vehicles, alcohol ether cars and so on. First, the hybrid car: hybrid refers to those who use traditional fuel, accompanied by motor / engine to improve low-speed power output and fuel consumption models. According to the different types of fuel, the main can be divided into two kinds of hybrid gasoline and diesel hybrid. At present the domestic market, the mainstream of hybrid vehicles are gasoline hybrid, while the international market, diesel hybrid models are also developing very fast. The advantages of hybrid cars are: 1, the use of hybrid power can be used in accordance with the average power to determine the maximum power of the internal combustion engine, this time in low fuel consumption, less pollution, the best working conditions. The need for high-power internal combustion …

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Production of new energy vehicles of the three core technologies

New energy vehicles! new energy vehicles! Often hear the new energy vehicles, new energy vehicles can be what kind of car? Today for everyone to popularize the new energy vehicles related knowledge, opened a new energy car “red cap”. First of all, the definition of new energy vehicles: the use of unconventional vehicle fuel as a power source (or the use of conventional vehicle fuel, the use of new vehicle power plant), integrated vehicle power control and drive the advanced technology to form Advanced technology, with new technology, new structure of the car. Tram sink from the moment the main new energy models, their respective advantages and disadvantages, on behalf of the model, as well as the current state subsidies, to understand the “rookie.” The most common three new energy models on the market today are: pure electric vehicles, plug-in hybrids, and extended range hybrids. Pure electric car Pure electric vehicles as the name suggests is purely powered by the vehicle, without the need for other energy, such as gasoline, diesel and so on. It can be through the household power supply, a dedicated charging pile or a specific charging place to charge to meet the daily driving needs. Plug-in …

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New-energy vehicles to get renewed push

The central government on Tuesday decided to accelerate the development of fuel-efficient new-energy vehicles to reinforce its green goals. Industry experts said the move would promote healthy restructuring of the auto manufacturing industry and get rid of heavy polluters. The State Council will re-introduce tax incentives to encourage purchase of cars whose engine is 1.6-liter or below. Taxes on such vehicle purchases will be halved for buyers from Oct 1 and will run till the end of next year.   Visitors check a hybrid new-energy car at an auto show in Changchun, Jilin province. A total of 72,711 new-energy vehicles were sold in the country in the first six months of the year. Zhang Nan / Xinhua The government will also keep tighter control on the purchases of buses and cars for government-funded organizations. Among the new purchases, more than 30 percent should be new-energy vehicles, the government said. Local governments which do not follow the guidelines will see their subsidies on fuel and operating expenses reduced. Local governments have also been urged not to impose restrictions on the use or purchase of new-energy vehicles and remove any such restrictions forthwith. Vehicles that fall below the National II Emission Standard, …

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Why the new energy vehicles have no new battery finished products come out?

At this year’s Shanghai International Auto Show, environmental protection and intelligence become a bright spot. New energy vehicles not only become the major car manufacturers hot pursuit of the object, but also represents the development of the entire automotive industry a trend. According to data from the independent energy data survey agency EIA, the United States consumed 385 million gallons of oil in 2015, while about 45 percent of the oil and 90 percent of the gasoline were consumed by light vehicles such as private cars, small trucks , Public transport and so on. It is easy to see that the car is the super energy of daily energy consumption, in the energy is limited, serious pollution today, environmental protection is a consensus. In 2016, China’s new energy automotive market increased attention, just a year in the new energy vehicle sales of more than 500,000, accounting for car sales accounted for 1.8%, growth rate of more than 50%, holdings of nearly 1 million The China’s annual sales of new energy vehicles accounted for more than 40% of the global proportion, ranked second in the United States annual sales of 160,000, new energy vehicle sales accounted for about 0.9%. There is …

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New energy vehicles can grow

The automobile industry has a long industrial chain and a wide coverage. The upstream and downstream industries have become one of the leading industries that support and stimulate the sustained and rapid growth of China’s economy. In 2016, China’s automobile production and sales hit a record high for eight consecutive years to become the world’s largest automobile producer and the largest new car consumer market. The automobile industry has a long industrial chain and a wide coverage. The upstream and downstream industries have become one of the leading industries that support and stimulate the sustained and rapid growth of China’s economy. National Bureau of Statistics data show that the first quarter of 2017 GDP grew 6.9%, compared with the same period last year increased by 0.2 percentage points, of which, industrial manufacturing industry grew 7%, outperforming GDP growth. According to the data released by the Provincial Economic Research Institute, the growth rate of automobile manufacturing industry is the main driving force for the growth of industrial scale above the scale. The industrial data of local growth is supported, whether it is first-tier city Beijing or central Hunan and Hubei The Among them, the added value of Hunan automobile manufacturing industry …

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New energy vehicle subsidies to slope more quality climbing

Recently, occurred in Beijing crab island resort parking lot of 89 electric bus chain fires, called the new energy vehicles since 2009 to mass promotion, the largest domestic new energy vehicle accident.   Although the relevant departments of the strict investigation and evidence collection, in time for the quality and safety of new energy bus is the name, but its economic losses, public opinion to the complex, high degree of media attention, all sounded the alarm – new energy Car operation safety is no small matter.   Into 2017, China’s new energy automotive industry by the “subsidy slope” policy impact, both quarterly both lower production and marketing. For the new energy automotive industry, the subsidy policy of the slope is conducive to breaking the protection of local protectionism, to help outstanding enterprises and products in the fierce competition in the market to win, and ultimately the whole industry’s survival of the fittest, worthy of recognition. But in reality, still do not rule out some enterprises in order to keep the “market share”, not through the basic skills to achieve cost reduction efficiency, but by reducing the quality standards to obtain the price advantage, and even lead to industry “bad currency …

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British energy distribution to diversified development

Recently, the British National Electric Power Company announced the cessation of the use of coal-fired power supply a day. This is the UK since 1882 to start the world’s first coal-fired generators, the first continuous 24 hours without the use of coal-fired power supply. As the world’s first country to start coal-fired power generation, the United Kingdom is also at the forefront of bid farewell to coal-fired power generation and energy transformation. Stop the use of coal-fired one day, nearly half of the electricity from natural gas, the other about 1/4 from nuclear power, the remaining power from wind power, bio-fuel power generation and imports of electricity. Coal-fired power generation in the UK lasted for hundreds of years, until the last century 80’s, coal still provides 70% of the national electricity. Since the 1970s, with the exploitation of oil resources in the North Sea, the use of oil and gas resources has increased significantly. The government has taken various measures to encourage residents and enterprises to use natural gas and reduce the pollution of coal energy. By the 1990s, the use of natural gas formed a small climax, accounting for the proportion of power generation system increased to 30%, coal …

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