China Best Sales 30HP High Efficiency Induction AC Electric Motor with Great quality

Product Description

YE2/YE3 are the high-efficiency series developed by our company by combing many years of experiences in the production of special motors of our company and ZheJiang Electrical Apparatus Research Institute, and adopting new technologies, processes and materials, in line with the newest energy efficiency rate standards in IEC6-2012 and in accordance with “Test Determination for Rotating Motor’s Loss and Efficiency” in the second part of IEC60034-2 Rotating Motor. Adopting a squirrel-cage structure and insulation class F, the series has such advantages as reliable operation and maintenance convenience, whose mounting dimension and power level both meet standards of IEC.  

Base range: 100-355
Power range: 2.2kW-355kW
Rated voltage: 380V/400V/415V/440V/660V/690V
Frequency: 50/60Hz
Number of levels: 2/4/6/8/10/12
Energy efficiency rating: IE2/IE3
Working system: S1
Protection level: IP54/IP55
Insulation class: F
Cooling method: IC411
Applications: pumps, reducers, machine tools, fans
Environment temperature: -15ºC~40ºC
Altitude: no more than 1,000m
Connection mode: Y-connection for the ones with a power of 3kW or below; △-connection for the ones with a power of 4kW or above
Basic structural form: B3, B5, B35, B14, B34
Nominal Minimum Energy Efficiency Requirement for Energy Efficiency of IE2/IE3 Motor (50Hz)



Number of poles
2 4 6 2 4 6
0.75 77.4 79.6 75.9 80.7 82.5 78.9
1.1 79.6 81.4 78.1 82.7 84.1 81.0
1.5 81.3 82.8 79.8 84.2 85.3 82.5
2.2 83.2 84.3 81.8 85.9 86.7 84.3
3 84.6 85.5 83.3 87.1 87.7 85.6
4 85.8 86.6 84.6 88.1 88.6 86.8
5.5 87.0 87.7 86.0 89.2 89.6 88.0
7.5 88.1 88.7 87.2 90.1 90.4 89.1
11 89.4 89.8 88.7 91.2 91.4 90.3
15 90.3 90.6 89.7 91.9 92.1 91.2
18.5 90.9 91.2 90.4 92.4 92.6 91.7
22 91.3 91.6 90.9 92.7 93.0 92.2
30 92.0 92.3 91.7 93.3 93.6 92.9
37 92.5 92.7 92.2 93.7 93.9 93.3
45 92.9 93.1 92.7 94.0 94.2 93.7
55 93.2 93.5 93.1 94.3 94.6 94.1
75 93.8 94.0 93.7 94.7 95.0 94.6
90 94.1 94.2 94.0 95.0 95.2 94.9
110 94.3 94.5 94.3 95.2 95.4 95.1
132 94.6 94.7 94.6 95.4 95.6 95.4
160 94.8 94.9 94.8 95.6 95.8 95.6
200~375 95.0 95.1 95.0 95.8 96.0 95.8

Nominal Minimum Energy Efficiency Requirement for Energy Efficiency of IE2/IE3 Motor (60Hz)

Number of poles
2 4 6 2 4 6
0.75 75,5 * 82,5 80,0 77,0 * 85,5 82,5
1.1 82,5 84,0 85,5 84,0 86,5 87,5
1.5 84,0 84,0 86,5 85,5 86,5 88,5
2.2 85,5 87,5 87,5 86,5 89,5 89,5
3.7 87,5 87,5 87,5 88,5 89,5 89,5
5.5 88,5 89,5 89,5 89,5 91,7 91,0
7.5 89,5 89,5 89,5 90,2 91,7 91,0
11 90,2 91,0 90,2 91,0 92,4 91,7
15 90,2 91,0 90,2 91,0 93,0 91,7
18.5 91,0 92,4 91,7 91,7 93,6 93,0
22 91,0 92,4 91,7 91,7 93,6 93,0
30 91,7 93,0 93,0 92,4 94,1 94,1
37 92,4 93,0 93,0 93,0 94,5 94,1
45 93,0 93,6 93,6 93,6 95,0 94,5
55 93,0 94,1 93,6 93,6 95,4 94,5
75 93,6 94,5 94,1 94,1 95,4 95,0
90 94,5 94,5 94,1 95,0 95,4 95,0
110 94,5 95,0 95,0 95,0 95,8 95,8
150 95,0 95,0 95,0 95,4 96,2 95,8
185 up to 375 95,4 95,0 ** 95,0 95,8 96,2 95,8

1. Novel design
2. Excellent starting performance
3. High starting torque
4. Low noise
5. Little vibration
6. Safe operation
7. Easy maintenance

The motor products manufactured and sold by our company are used in many industries, such as electric power, mining, steel metallurgy, petrochemical, water conservancy, transportation, building materials and many other industries. The equipment for the motor is pump, machine tool, fan, mill, crusher, rolling mill, compressor and many other industrial equipment.

The motor products manufactured by our company have obtained the ISO9001 quality management management system certification, passed the CCC/COC, China energy-saving product certification, and passed the certification certificates of CE/UL/IRIS/CAS and other European and American countries. The company strictly improves the quality and efficient motor products and services for users in strict accordance with the requirements of relevant product standards.

 ZCL Electric Motor Technology Co., Ltd. is a company mainly engaged in the manufacture, research and development and sales of motor products. The company has many types of motor products, including IEC standard motors. It is a professional IEC motor manufacturer. Related motor products have passed the product certification in China, the United States, Canada, Europe, the Middle East and other regions, and the products are exported to all over the world. Companies adhere to the “focus on products, service” business philosophy, is committed to improving the quality of safe motor products and services for customers around the world.

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Application: Industrial
Operating Speed: Constant Speed
Number of Stator: Three-Phase
Species: Ye3
Rotor Structure: Squirrel-Cage
Casing Protection: Closed Type


electric motor

How do electric motors contribute to the efficiency of tasks like transportation?

Electric motors play a significant role in enhancing the efficiency of various transportation tasks. Their unique characteristics and advantages contribute to improved performance, reduced energy consumption, and environmental benefits. Here’s a detailed explanation of how electric motors contribute to the efficiency of tasks like transportation:

  1. High Energy Conversion Efficiency: Electric motors are known for their high energy conversion efficiency. They can convert a large percentage of electrical energy supplied to them into mechanical energy, resulting in minimal energy losses. Compared to internal combustion engines (ICEs), electric motors can achieve significantly higher efficiencies, which translates to improved energy utilization and reduced fuel consumption.
  2. Instant Torque and Responsive Performance: Electric motors deliver instant torque, providing quick acceleration and responsive performance. This characteristic is particularly advantageous in transportation tasks, such as electric vehicles (EVs) and electric trains, where rapid acceleration and deceleration are required. The immediate response of electric motors enhances overall vehicle efficiency and driver experience.
  3. Regenerative Braking: Electric motors enable regenerative braking, a process where the motor acts as a generator to convert kinetic energy into electrical energy during deceleration or braking. This recovered energy is then stored in batteries or fed back into the power grid, reducing energy waste and extending the vehicle’s range. Regenerative braking improves overall efficiency and helps maximize the energy efficiency of electric vehicles.
  4. Efficient Power Distribution: Electric motors in transportation systems can be powered by electricity generated from various sources, including renewable energy. This allows for a diversified and cleaner energy mix, contributing to reduced greenhouse gas emissions and environmental impact. By utilizing electric motors, transportation tasks can leverage the increasing availability of renewable energy resources, leading to a more sustainable and efficient transport ecosystem.
  5. Reduced Maintenance Requirements: Electric motors have fewer moving parts compared to ICEs, resulting in reduced maintenance requirements. They eliminate the need for components like spark plugs, fuel injection systems, and complex exhaust systems. As a result, electric motors typically have longer service intervals, lower maintenance costs, and reduced downtime. This enhances operational efficiency and reduces the overall maintenance burden in transportation applications.
  6. Quiet and Vibration-Free Operation: Electric motors operate quietly and produce minimal vibrations compared to ICEs. This characteristic contributes to a more comfortable and pleasant passenger experience, especially in electric vehicles and electric trains. The reduced noise and vibration levels enhance the overall efficiency and comfort of transportation tasks while minimizing noise pollution in urban environments.
  7. Efficient Power Management and Control: Electric motors can be integrated with advanced power management and control systems. This allows for precise control over motor speed, torque, and power output, optimizing efficiency for specific transportation tasks. Intelligent control algorithms and energy management systems can further enhance the efficiency of electric motors by dynamically adjusting power delivery based on demand, driving conditions, and energy availability.
  8. Reduction of Emissions and Environmental Impact: Electric motors contribute to significant reductions in emissions and environmental impact compared to traditional combustion engines. By eliminating direct emissions at the point of use, electric motors help improve air quality and reduce greenhouse gas emissions. When powered by renewable energy sources, electric motors enable nearly zero-emission transportation, paving the way for a cleaner and more sustainable transportation sector.

Through their high energy conversion efficiency, instant torque, regenerative braking, efficient power distribution, reduced maintenance requirements, quiet operation, efficient power management, and environmental benefits, electric motors significantly enhance the efficiency of tasks like transportation. The widespread adoption of electric motors in transportation systems has the potential to revolutionize the industry, promoting energy efficiency, reducing reliance on fossil fuels, and mitigating environmental impact.

electric motor

How do electric motors handle variations in voltage and frequency?

Electric motors are designed to handle variations in voltage and frequency to ensure proper operation and performance. The ability of electric motors to adapt to different voltage and frequency conditions depends on their design characteristics and the presence of additional control devices. Here’s a detailed explanation of how electric motors handle variations in voltage and frequency:

  1. Voltage Variations: Electric motors can handle certain variations in voltage without significant issues. The motor’s design factors in a voltage tolerance range to accommodate fluctuations in the power supply. However, excessive voltage variations beyond the motor’s tolerance can affect its performance and lead to problems such as overheating, increased energy consumption, and premature failure. To mitigate the impact of voltage variations, electric motors may incorporate the following features:
    • Voltage Regulation: Some electric motors, especially those used in industrial applications, may include voltage regulation mechanisms. These mechanisms help stabilize the motor’s voltage, compensating for slight voltage fluctuations and maintaining a relatively steady supply.
    • Voltage Protection Devices: Motor control circuits often incorporate protective devices such as voltage surge suppressors and voltage regulators. These devices help prevent voltage spikes and transient voltage variations from reaching the motor, safeguarding it against potential damage.
    • Voltage Monitoring: In certain applications, voltage monitoring systems may be employed to continuously monitor the motor’s supply voltage. If voltage variations exceed acceptable limits, the monitoring system can trigger alarms or take corrective actions, such as shutting down the motor to prevent damage.
  2. Frequency Variations: Electric motors are designed to operate at a specific frequency, typically 50 or 60 Hz, depending on the region. However, variations in the power system frequency can occur due to factors such as grid conditions or the use of frequency converters. Electric motors handle frequency variations in the following ways:
    • Constant Speed Motors: Most standard electric motors are designed for operation at a fixed speed corresponding to the rated frequency. When the frequency deviates from the rated value, the motor’s rotational speed changes proportionally. This can affect the motor’s performance, especially in applications where precise speed control is required.
    • Variable Frequency Drives (VFDs): Variable frequency drives are electronic devices that control the speed of an electric motor by varying the supplied frequency and voltage. VFDs allow electric motors to operate at different speeds and handle frequency variations effectively. By adjusting the frequency and voltage output, VFDs enable precise control of motor speed and torque, making them ideal for applications where speed control and energy efficiency are critical.
    • Inverter Duty Motors: Inverter duty motors are specifically designed to handle the frequency variations encountered when operated with VFDs. These motors feature improved insulation systems and robust designs to withstand the harmonic distortions and voltage spikes associated with VFD operation.
  3. Motor Protection: Electric motors may incorporate protective features to safeguard against adverse effects caused by voltage and frequency variations. These protection mechanisms include:
    • Thermal Protection: Motors often include built-in thermal protection devices such as thermal switches or sensors. These devices monitor the motor’s temperature and can automatically shut it down if it exceeds safe limits due to voltage or frequency variations that lead to excessive heating.
    • Overload Protection: Overload protection devices, such as overload relays, are employed to detect excessive currents drawn by the motor. If voltage or frequency variations cause the motor to draw abnormal currents, the overload protection device can interrupt the power supply to prevent damage.
    • Voltage/Frequency Monitoring: Advanced motor control systems may incorporate voltage and frequency monitoring capabilities. These systems continuously measure and analyze the motor’s supply voltage and frequency, providing real-time feedback on any deviations. If voltage or frequency variations exceed predetermined thresholds, the monitoring system can activate protective actions or trigger alarms for further investigation.

In summary, electric motors handle variations in voltage and frequency through design considerations, additional control devices, and protective mechanisms. Voltage variations are managed through voltage regulation, protective devices, and monitoring systems. Frequency variations can be accommodated by using variable frequency drives (VFDs) or employing inverter duty motors. Motor protection features, such as thermal protection and overload relays, help safeguard the motor against adverse effects caused by voltage and frequency variations. These measures ensure the reliable and efficient operation of electric motors under different voltage and frequency conditions.

electric motor

How do electric motors handle variations in load, speed, and torque?

Electric motors are designed to handle variations in load, speed, and torque through various control mechanisms and techniques. Here’s a detailed explanation of how electric motors handle these variations:

  1. Load Variations: Electric motors can handle variations in load by adjusting the amount of torque they produce. When the load on the motor increases, such as when additional resistance or weight is applied, the motor responds by increasing the torque output. This is achieved through the control of the motor’s input current or voltage. For example, in DC motors, increasing the current supplied to the motor can compensate for the increased load, ensuring that the motor can continue to operate at the desired speed.
  2. Speed Variations: Electric motors can handle variations in speed by adjusting the frequency of the power supply or by varying the voltage applied to the motor. In AC motors, the speed is determined by the frequency of the alternating current, so changing the frequency can alter the motor’s speed. In DC motors, the speed can be controlled by adjusting the voltage applied to the motor. This can be achieved using electronic speed controllers (ESCs) or by employing pulse width modulation (PWM) techniques to control the average voltage supplied to the motor.
  3. Torque Variations: Electric motors can handle variations in torque by adjusting the current flowing through the motor windings. The torque produced by a motor is directly proportional to the current flowing through the motor. By increasing or decreasing the current, the motor can adjust its torque output to match the requirements of the load. This can be accomplished through various control methods, such as using motor drives or controllers that regulate the current supplied to the motor based on the desired torque.
  4. Control Systems: Electric motors often incorporate control systems to handle variations in load, speed, and torque more precisely. These control systems can include feedback mechanisms, such as encoders or sensors, which provide information about the motor’s actual speed or position. The feedback signals are compared to the desired speed or position, and the control system adjusts the motor’s input parameters accordingly to maintain the desired performance. This closed-loop control allows electric motors to respond dynamically to changes in load, speed, and torque.

In summary, electric motors handle variations in load, speed, and torque through various control mechanisms. By adjusting the current, voltage, or frequency of the power supply, electric motors can accommodate changes in load and speed requirements. Additionally, control systems with feedback mechanisms enable precise regulation of motor performance, allowing the motor to respond dynamically to variations in load, speed, and torque. These control techniques ensure that electric motors can operate effectively across a range of operating conditions and adapt to the changing demands of the application.

China Best Sales 30HP High Efficiency Induction AC Electric Motor   with Great quality China Best Sales 30HP High Efficiency Induction AC Electric Motor   with Great quality
editor by CX 2024-04-16