Energy-saving motors will replace traditional motors
Release time:
2024-07-01
Classification of motor energy efficiency grades in China
China's motor energy consumption accounts for about 50% of the total energy consumption. China's industrial energy consumption accounts for about 70% of the total energy consumption, of which motor energy consumption accounts for about 60%-70% of industrial energy consumption; plus non-industrial motor energy consumption, motor energy consumption accounts for more than 50% of the total energy consumption. Therefore, the proportion of motor energy consumption is high, and the energy saving space is large.
Energy-saving motors refer to motors with an energy efficiency rating of 2 or more. In China, the energy efficiency meets or exceeds the national standard GB18613-2012 "small and medium-sized three-phase asynchronous motor energy efficiency limit value and energy efficiency rating" in the energy-saving evaluation value, relative to the EU EFF1 standard, that is, the energy efficiency rating of level 2 (IE3) of the asynchronous motor, called the motor.
Table 1: Classification of motor energy efficiency grades in China
Class 3 (IE2) standard efficiency motor, low efficiency
Level 2
(IE3) High Efficiency Motor
Class 1 (IE4) Ultra High Efficiency Motor
The efficiency of energy-saving motors is about 3%-5% higher than that of traditional ordinary motors. Energy-saving motor adopts new motor design, new technology and new materials to improve output efficiency by reducing the loss of electromagnetic energy, thermal energy and mechanical energy. Energy-saving motors are about 3%-5% more efficient than traditional motors.
The operating cost of the motor accounts for 90% of the total cost, and the energy-saving effect of the whole life cycle of the energy-saving motor is remarkable. Assumptions
If a motor runs for 4000 hours per year for a total of 10 years, the cost of purchase, installation and maintenance accounts for only about 10% of the total cost, while the electricity required for operation accounts for about 10% of the total cost.
90%; If energy-saving motors are used, electricity can be saved all the time. Although the price is about 10%-20% higher than that of ordinary motors, the increased cost can be recovered in one year, and the energy-saving effect in the whole life cycle is remarkable.
The proportion of energy-saving motor applications is low, and the promotion is in the acceleration period. At present, the proportion of energy-saving motor applications above level 2 in China is low. According to the national small and medium-sized motor quality supervision and inspection center of the domestic key enterprises 198 motor sample survey, which reached 2
The proportion of energy-saving motors above grade is only 8%, the proportion of energy-saving motors is low, and the promotion is in an accelerated period. But it is undeniable that the motor will replace the ordinary motor trend.
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