Induction motors are valued for their high efficiency and durability, with energy savings of up to 30% compared to other motor types. Operating at efficiencies over 90%, these motors are ideal for continuous operation in both low and high-power applications, making them cost-effective over their typical 15-20 year lifespan.
High Efficiency
The general efficiency of an induction motor will fall between 85% and 95%, or at least 15% higher than many motors. For example, in an industrial automation production line, the use of induction motors can increase energy efficiency by about 20%. This saves 100,000 RMB per year on electricity costs in the enterprise.
In some high-load applications, the induction motor’s efficiency fluctuation is usually no more than 3%. For instance, in some power equipment and mining machinery, the induction motor can maintain more than 95% operating efficiency under maximum load conditions, while traditional motors can only achieve about 70% efficiency.
Generally, the service life of induction motors reaches up to 10 years. The induction motor’s efficiency degradation rate is normally no more than 5%. For example, on a five-year running production line, the efficiency of the induction motor is still up to about 92%.
At an ambient temperature of 45°C, their efficiency is still in excess of 90%, with the maintenance cost less than 2% of the total running cost of induction motors.
There are only three years to recover costs by the realization of energy-saving advantages of induction motors. The average production cost decreases in the percentage range of 15% to 20% after enterprises adopt induction motors. For instance, one factory recovered investment in induction motors replacing traditional ones in less than four years with a return on investment of 25%.
Adoption of an intelligent induction motor on high-speed production lines has increased efficiency in production by 30%, along with an 18% saving in energy consumed during the time of production.
Replacing traditional motors with induction motors can cut down electricity consumption by about 30%. An induction motor makes sure that some steel manufacturing enterprises realize an annual carbon dioxide emission reduction as high as 500 tons.
The induction motors can achieve a transformation efficiency as high as 98% among wind power generators, and an important factor is that the operational and maintenance cost of such a generator unit is lower when compared with other types.
Using induction motors in several household appliances may increase the efficiency of their operation by more than 20%. An example of such improvement is that the energy efficiency ratio for an air conditioner driven by an induction motor is 18% higher compared with conventional ones.
Simple Structure
About 70% of industrial motors in the world are induction motors, and among those, more than 60% of them are used in production lines and manufacturing. The power of induction motors used in industries varies from tens of watts to several hundred kilowatts. For example, a normal induction motor used in industry, with 200-kilowatt power, can serve up to 15 years, while the annual cost of running it at work amounts to around 120,000 RMB.
In general, the stator coil of the induction motor is wound by copper or aluminum wire. The full-load efficiency can be as high as more than 95%, and the no-load power consumption is only about 1% to 3%. Taking the induction motor with rated power 15 kilowatts for example, when running under no load, its no-load power loss is 0.45 kilowatts, saving as high as 6,000 RMB electricity every year.
Squirrel-cage rotors are used on many small and medium-size motors. One company’s production increased about 15% after induction motors with squirrel cage rotors were installed. Similarly, through optimized design, about 10% energy consumption was reduced.
The temperature rise of the motor should be limited to a maximum value of about 80°C. A steel casing effectively enhances the strength of the motor. Common protection ratings include IP55, which signifies dust and water resistance and makes the motor fit for long-term operation under harsh conditions.
A water pump motor operates at full load with a capacity of 45 kilowatts and a load rate of 100%. Normally, the speed of the motor can be kept within 1500 revolutions per minute, which could work stably for more than 10 hours, and the fluctuation of speed under load variation should not exceed 5%.
With an intelligent monitoring system, a factory was able to reduce equipment failure rates by up to 30% and save 12% on electricity consumption.
A frequency converter installed on a conveyor belt system reduces its consumption of motor power by about 20%. Low friction ball bearings can reduce the operating noise of a motor, and some top-of-the-range motors have a noise level as low as 40 decibels. The average maintenance cycle for motors is six months to a year. Timely maintenance will add a motor’s life by up to 20%.
The electric motor of one well-known brand of electric vehicle is 150 kilowatts. The acceleration from 0 to 100 kilometers per hour is less than seven seconds, while the energy conversion efficiency of this motor is more than 95 percent.
Stable Operation
The average operating life of a single motor is 15 years, with over 70% motors guaranteeing over 95% operation efficiency within the operating life. For example, a 30-kilowatt motor running at a petrochemical plant maintains over a 90% load rate after eight years, with energy efficiency loss controlled within 3%.
Equipped with a water cooling system, controlled temperature under 55℃ extends the lifetime. Based on field usage, when an enterprise had changed their systems to adopt the use of a liquid cooling system, the fluctuation in motor temperatures was ±2℃, whereas their operating efficiency rose higher than 97%. In contrast with normal air-cooling systems, one liquid-cooling system showed effectiveness that grew about 10% higher.
The soft start mechanism allows the 50-kilowatt rated power motor to decrease the starting current by 40% as opposed to direct starting to prolong the service life of the equipment.
X-Y series motors whose maximum speeds reach 3600 revolutions per minute and the low-speed ones operate at less than 1500 revolutions per minute. Motor of an electric vehicle can have a fluctuation in speed from 1500 to 3000 revolutions per minute and speed fluctuation not higher than 2%.
However, compared to the operation of rated load, the working efficiency of motors in no-load operation conditions is increased by 30%. A machinery factory adopted dynamic balancing technology and reduced the vibration amplitude of motors by 50%.
While maintaining 98% working efficiency, the failure rate of motors with routine inspection and maintenance is 35% less. For example, a factory overhauled a motor after 2500 hours of work; afterwards, the rate of failure was close to zero.
A power company installed high-precision current monitoring systems to monitor real-time current fluctuations. When the unbalanced current was higher than 5%, it would automatically balance the load and thereby prevent damage to the motors effectively.
In a large mining motor system, the load fluctuation rates reached as high as 25%. Based on the using of a frequency converter control system, the motor speed fluctuated within 5%.
By selecting low-noise and low-vibration motors with precise speed control systems, it was possible to keep noise levels below 40 decibels.
Wide Applicability
The global motor market was valued at US$200 billion in 2023 and is expected to witness a growth rate of 6.5% per year by 2028.
About 45% of the global motor market is applied to manufacturing. For example, an efficient electric drive system was introduced by a large manufacturing enterprise. It improved the energy efficiency of the production line by 15% and reduced the production cost by about 10%.
The electric vehicle market is expected to reach $90 billion in 2024, with an annual growth rate of 20%. The use of motors has reduced vehicle operating costs by about 50%. For instance, an electric sedan equipped with a 150-kilowatt motor achieves a range of 500 kilometers and requires only 30 minutes for charging.
It also works 20% more efficiently in terms of work while running 200 horsepower of a large electric tractor compared to conventional diesel tractors. A farming electric machinery creates almost zero carbon emissions during operation.
A surgical robot armed with a sophisticated electric servo system reduces the time required by 5% and increases the success rate of such surgeries by 90%.
The power rating of modern elevator motors generally ranges between 5 and 100 kW and, with an energy efficiency improvement of 15%, they consume as much as 20% less energy.
By 2023, more than 1,000 GW of wind power was installed in the world, and it is expected that this will increase to 2,000 GW by 2030. The modern wind turbines’ motor power ranges between 1 to 8 megawatts with efficiency improvement in the range of 10-15%.
Inverter motor air conditioners are able to save 25% more energy compared to traditional fixed-speed air conditioners. The electric mining machinery and electric transport vehicles in modern mines replace the electric equipment with internal combustion engines, which decreases energy consumption by 30% and reduces the failure rate of the equipment by 15%. After using electric equipment, the average operating cost was reduced by 20%.
In most applications, motor-driven cooling systems can save energy up to 30%. For example, an efficient motor-driven cooling system helped a large data center reduce its annual electricity costs by $1.5 million.
The electric drive system of the food production line can increase production speed by 15% and reduce the failure rate of equipment by 20%.
High Starting Torque
Some high starting torque motors have a starting torque of 2 to 4 times their rated torque. For instance, in the steel industry, big electric rolling mills require up to 3 times the rated torque to start in order to overcome the static friction of raw materials. The power of these motors typically ranges from 500 kilowatts to 1500 kilowatts.
High starting torque motors are effective in reducing starting time for large fans and air conditioning systems by about 30%. Starting torque for these motors is generally more than 2.5 times rated torque. A steel plant installed high starting torque motors, which reduced the startup time of the air conditioning system from 15 seconds to 10 seconds, saving about 50% of startup energy consumption.
In general, pump systems with high starting torque motors realize energy efficiency during startup that is improved by about 20% or more. For example, the motor of a given pumping system could achieve 2.7 times its rated torque at startup.
Large starting torque—4 or more times rated torque—designed motors characterize most mine hoist applications. These ensure fast transportation of ores. After having replaced their motors with a high starting torque design, production at this mining company went up 10%.
Operating torque is usually 2-3 times of the rated torque of tower cranes and bridge cranes motors. The application of such high starting torque motors to the building site improved lifting efficiency by about 15%, besides reducing failure cases in hoisting by about 10%.
High starting torque motors can deliver power quickly at startup. For example, the motor of an electric sedan provides 3 times the rated torque at startup and reduces the acceleration time from 0 to 100 kilometers to 6 seconds.
Wind turbine motors should be able to overcome blade static friction for quick start-ups. A high-power wind turbine motor was designed to provide more than 2.5 times the rated torque at startup and increased annual power generation by up to 8%.
A motor in a refrigeration unit delivers starting torque 3 times its rated value. By adopting high starting torque motors, the refrigeration unit startup time was reduced by 20%, reducing equipment failure rates by a great margin.
High starting torque motors can startup quickly. For an oil drilling platform, the motor with starting torque 4 times of its rated value cut down the platform’s startup time from 30 minutes to 15 minutes and saved around 2 million RMB in operating cost every year.
For water treatment equipment, high starting torque means up to 30% reduction in downtime and as much as 25% improvement in stability. One very large water treatment plant installed motors featuring high starting torque and succeeded in shaving off 20% of system start-up time with energy savings amounting to the same 20%.
Long Lifespan
Whereas some high-quality motors can remain functional for as long as 20 years, the life of a standard motor is just 10 years. These motors save about 30% in maintenance costs during their lifetime. Long-life motors can help an enterprise save around 15% annually in operating and repair costs.
The average service life of the premium solar panels reaches as high as 25 years, almost 40% longer than the 15-year service life of general products. Choosing long-lifespan panels reduces the cost of 20 years of electricity by about 25%, saving thousands of RMB per year in electricity bills.
Top-tier LCD displays typically last 8 to 10 years, significantly exceeding the 5-year lifespan of standard monitors. Displays with longer lifespans can save businesses about 1,000 RMB annually in replacement and maintenance costs compared to shorter-lived models.
Some high-end automotive battery systems have a lifespan exceeding 150,000 kilometers, 150% longer than the 60,000 kilometers of standard car batteries. Long-lifespan batteries can save car owners approximately 20,000 RMB over their lifetime.
Generally, air conditioners can serve 10 to 15 years. For high-quality air conditioners with better compressors and circuit design, their service life can be more than 20 years. Under such circumstances, the frequency of maintenance and replacement for longer-life air conditioners will be half that of ordinary ones, saving about 500 RMB per year in maintenance costs.
One brand of long-lifespan LED bulbs is designed to last 50,000 hours, compared with a mere 10,000 hours for standard bulbs. Operating 3,000 hours annually, long-lifespan LED bulbs can reduce replacement costs by about 90%, saving users over 200 RMB every year in electricity and replacement expenses.
Some of the high-quality power tools can even last for more than 10 years. Long-life tools can save up to 20% per year in maintenance and replacement costs and provide more than 15% greater stability in actual operations compared to standard tools.
Wind turbines with a life of more than 25 years can save power companies around 15% in operating and maintenance costs.
The life cycle of flagship smartphones can go up to 5 years, compared with the ordinary 2-to-3-year lifespan of other models. In long-life-cycle smartphones, users can reduce device replacement by about 40%, saving approximately 1,000 RMB per year for the replacement and repair of devices.
Some of the top-of-the-line X-ray and CT scanning machines last over 20 years, an incredibly long period—more than double, in fact, compared to the common lifespan for regular medical devices: 10 years. With long-life devices, hospitals can cut yearly maintenance and upgrading costs by approximately 30%.
Excellent Heat Dissipation Performance
A liquid cooling system on a high-performance gaming computer maintains the CPU temperature below 60°C under heavy load, which is 30% lower than the temperature of standard air cooling systems. Computers with better cooling systems face a 25% reduction in the rate of failure in the long run.
Temperature remains less than 50°C even after 200 hours of continuous operation for one brand of LED display. Consequently, this diminishes the rate of failure by about 20%, compared with other brands using higher temperature LED displays, and decreases overall operational costs by 15%.
The temperature of an electric vehicle’s advanced liquid cooling system maintains the temperature of its battery pack below 35°C during charging. Optimized cooling design increases the charging speed by 20% compared to the traditional air-cooled electric vehicle and extends the battery life to 8 years.
A smartphone using multilayer graphite cooling technology keeps the CPU temperature below 45°C, which is 10% lower than that from traditional cooling solutions. This extends battery life by 15%.
A workstation with a dual-fan and heat pipe cooling system can effectively maintain the processor temperature below 70°C. It enhances the cooling efficiency by 30%, increases system stability by 40%, and minimizes hardware damage caused by poor heat dissipation.
The temperature of an LED streetlight is 15% lower than that of traditional products. This technology extends the life of the streetlight by 25%.
An air conditioner with optimized heat exchange technology increases the cooling efficiency by 20% compared to a standard air conditioner. This highly efficient cooling design cools the room from 30°C to 22°C in just 30 minutes and saves energy 25% more compared to traditional models.
A large data center uses an advanced liquid cooling system to keep server temperatures below 28°C. It cuts energy consumption by up to 15%.
It improves the operational efficiency of the wind turbine by 12%, increases power generation by 10%, and reduces the equipment failure rate by 15%.
It leads to a reduction in engine temperature that stays well below 90°C due to an effectively designed improved radiator for the engine. The increased cooling provides a rise of 15% in engine efficiency.
