China Must Promote High Efficiency Motors

- Oct 26, 2018-

China attaches great importance to improving motor efficiency, which is due to the high energy consumption of motor products used in China. As a power source for mechanical equipment, electric motors are widely used in various fields of national economic construction, and consume a lot of electricity. The efficiency is not high, which is the reason why China attaches importance to improving the efficiency of the motor. Although everyone has begun to pay attention now, in the process of promoting high-efficiency motors, the relevant units still need to work harder.

Recently, the national remanufacturing demonstration project for the national remanufacturing demonstration project was launched in Shanghai, marking a further step in China's industrial energy conservation during the 12th Five-Year Plan period. Just one week before the launch of the demonstration project, the relevant departments also held a seminar on energy-saving technologies for motor systems in Beijing, in an effort to promote the implementation of energy-saving projects for motor systems.

Throughout the past two years, there have been many similar activities for high-efficiency motors. This is enough to illustrate two points: First, it shows that China attaches great importance to improving motor efficiency; second, high-efficiency motors are used less in China, and they need to be promoted and promoted.

China attaches great importance to improving motor efficiency, which is due to the high energy consumption of motor products used in China. As a power source for mechanical equipment, electric motors are widely used in various fields of national economic construction, and consume a lot of electricity. The data shows that the total installed capacity of China's motors has reached more than 400 million kilowatts, and the annual power consumption has reached 1.2 trillion kilowatt hours. The power consumption accounts for about 60% of the national industrial electricity consumption, accounting for 50% of the country's total electricity consumption. For example, in Shanghai, the installed capacity of industrial systems is about 20 million kilowatts, and the annual electricity consumption is about 59 billion kilowatt hours, accounting for about 75% of the industrial system's electricity consumption.

However, the motors used in China are generally ordinary motors, and their efficiency is greatly improved. At present, Y series motors used in China account for 90% of the total. This type of motor was developed in the 1990s, and its average efficiency is only 87.3%, while the efficiency of the latest series of motors is as high as 91.7%. Compared with developed countries, China's motor The average efficiency is 3 to 5 percentage points lower, and the operating efficiency is 10 to 20 percentage points lower. If we can make up these 3~5 percentage points, China can save more than 50 billion kWh of electricity every year.

The motor consumes a large amount of electricity and the efficiency is not high. This is the reason why China attaches great importance to improving the efficiency of the motor. Although everyone has begun to pay attention now, in the process of promoting high-efficiency motors, the relevant units still need to work harder.

The application of high efficiency motors is too small. There are only 30 to 50 companies in China that have the ability to design, produce and test high-efficiency motors. The market for high-efficiency motors accounts for only 10% to 15% of the total market, and 90% of these high-efficiency motors are also exported.

How to add more strength? The first and foremost thing is to let users realize the economic benefits of using efficient motors. Market research shows that the sales prices of high-efficiency motors and ordinary motors are 70 yuan / kW ~ 90 yuan / kW and 40 yuan / kW, respectively. Many users think that the cost of using high-efficiency motors is too high. Actually it is not. From the perspective of the full life cycle, the cost of purchasing a high-efficiency motor is spread out to every kilowatt per year, which is much cheaper than a normal motor. Therefore, industrial motor users must have a deep understanding of the economic benefits of motor system energy savings.

In addition, good high-efficiency motors are mainly imported, which leads to high prices, which is also a major reason for the difficulty of promotion. This requires the state to increase support for domestic motor manufacturing enterprises, so that domestic products will form market competitiveness as soon as possible.

high efficiency motor

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