Product Description

We,GOGOGO Mechanical&Electrical Co.,Ltd specialize in high quality energy-efficient electric motors. The combination of the best available materials, high quality sheet metal and the right amount of copper in the rotor/stator makes GOGOGO’s electric motors highly energy-efficient.

We design our electric motors to fit and match our customer’s requirements at our production site. The electric motors can be supplemented with a range of options and accessories or modified with a special design to endure any environment.
 

Electric motors account for a large part of the electricity used. If we look at the world, electric motors account for about 65 percent of the electricity used in industry. To reduce this use of electricity, there are legal requirements regarding the efficiency of electric motors manufactured in the EU, or exported into the EU.

Three-phase, single-speed asynchronous motors are covered by the requirements today. Asynchronous motors are the most common type of motor and account for 90 percent of the electricity consumption of all electric motors in the power range 0.75 – 375 kW.

According to that standard, the energy efficiency classes have the designations IE1, IE2, IE3 and IE4, where IE4 has the highest efficiency.

 

Revision of the standard

A revision of the standard was decided by the Ecodesign Committee in 2019. The revision was published on October 1, 2019. The following will apply:

For electric motors

From July 1, 2571

2-, 4-, 6- and 8-pole motors from 0.75 – 1000 kW (previously up to 375kW) are included in efficiency class IE3.

Motors within the range 0.12 – 0.75 kW must meet efficiency class IE2.

The previous possibility to replace IE3 motors with an IE2 motor with frequency drive disappears.

From July 1, 2571

For 2-, 4-, 6- and 8-pole motors from 0.12 – 1000 kW, the efficiency class IE2 now also applies to Ex eb certified motors with high safety.

Single phase motors with greater power than 0.12 kW are covered by the corresponding IE2 class.

The higher efficiency class IE4 applies to 2, 4 and 6-pole motors between 75 – 200 kW.

For frequency inverters

From July 1, 2571

For use with electric motors with power from 0.12 – 1000 kW, the frequency inverter must pass efficiency class IE2 specially designed for inverters.

Current requirements according to the Directive

Since 16 June, 2011 it is prohibited to place electric motors below energy efficiency class IE2 on the market, or to put them into service in the EU.

Since January 1, 2015, electric motors within the range 7.5 – 375 kW (2-, 4-, and 6-pole) must meet the requirements for IE3, or IE2 if the latter is combined with frequency inverters for speed control. The legal requirement thus provides 2 options.

From January 1, 2017, the requirements were tightened so that all motors 0.75 – 375 kW (2-, 4-, and 6-pole) must meet the requirements for IE3, or IE2 if they are combined with frequency inverters.

Exemptions from the current directive

  • Operation other than S1 (continuous drive) or S3 (intermittent drive) with a nominal cyclicity factor of 80 percent or lower.
  • Made for assembly with frequency inverters (integral motors).
  • Electric motors made for use in liquid.
  • Electric motors that are fully integrated into a product (e.g. a gear, pump, fan or compressor) where the energy performance is not tested independently of the product.
  • Brake motors

Electric motors intended for operation exclusively:

  • At altitudes exceeding 4 000 CHINAMFG above sea level.
  • If ambient air temperatures exceed 60°C.
  • Where maximum operating temperature exceeds 400°C.
  • Where ambient air temperatures are less than -30°C for all motors, or less than 0°C for motors with water cooling.
  • In explosive atmospheres (as defined in Directive 94/9 / EC 9)

The requirements do not apply to ships or other means of transport that carry goods or persons, since there must be specially designed engines for this purpose. (If the same mobile conveyor belt is used on ships as well as on land, the rules apply).

Also, the requirements do not apply to repair of motors previously placed on the market, or put into service – unless the repair is so extensive that the product will in practice be brand new.

If the motor is to be further exported for use outside Europe, the requirements do not apply.

Some other requirements apply to water-cooled motors

We have our own design and development team, we can provide customers with standard AC electric motors, We can also customize the single phase/three phase motors according to the special needs of customers.    Currently our main motor products cover 3 – phase high – efficiency motors,general 3 – phase motors, single phase motors, etc.
The main motor ranges: IE3 / YE3, IE2 / YE2, IE1 / Y2, Y, YS, MS, YC, YL, YY, MC, MY, ML motors.
 American standard NEMA motors
Russian standard GOST ANP motors
ZheJiang type AEEF motors,YC motors

Why choose us?
Guarantee of our motors:18-24months
General elivery time:15-30days
Price of motors: Most reasonable during your all suppliers
Packing:Strong export cartons/wooden case/plywood cases/pallets
Payment way with your order: T/T,LC,DP,etc

Sample order: Acceptable
Shipment way: Sea ship,Air flight,Express way,Land transfer way.

If you are looking for new better supplier or purchase electric motors, please feel free contact us now.You will get all what you want.

Application: Industrial
Speed: Constant Speed
Number of Stator: Three-Phase
Function: Driving, Control
Casing Protection: Closed Type
Number of Poles: 2
Samples:
US$ 30/Piece
1 Piece(Min.Order)

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Customization:
Available

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3 phase motor

Can you explain the advantages of using a 3-phase motor?

Using a 3-phase motor offers several advantages over other types of motors. Here’s a detailed explanation of the advantages of using a 3-phase motor:

  • High Efficiency: 3-phase motors are known for their high efficiency. They can convert electrical energy into mechanical energy with minimal losses. The balanced three-phase power supply and the design of the motor result in a smoother and more efficient operation compared to single-phase motors.
  • Power Factor: 3-phase motors have a better power factor compared to single-phase motors. Power factor is a measure of how effectively the motor utilizes the electrical power. By having a higher power factor, 3-phase motors reduce the amount of reactive power required from the power supply, resulting in improved overall power system efficiency.
  • High Starting Torque: 3-phase motors can provide high starting torque, making them suitable for applications that require the motor to start under load. The three-phase power supply and the design of the motor enable it to produce a strong rotating magnetic field, which allows for efficient starting and acceleration of the motor’s rotor.
  • Smooth Operation: The rotating magnetic field produced by the three-phase power supply results in smooth and continuous operation of the motor. This characteristic makes 3-phase motors ideal for applications that require constant and reliable operation, such as industrial machinery, pumps, compressors, and HVAC systems.
  • Compact Size and Weight: 3-phase motors tend to be more compact and lightweight compared to equivalent power single-phase motors. This compactness is due to the even distribution of the windings around the stator and the absence of additional starting components often required in single-phase motors.
  • Higher Power Output: 3-phase motors can deliver higher power output compared to single-phase motors of similar size. The balanced three-phase power supply and the design of the motor allow for efficient utilization of electrical power, enabling the motor to provide greater mechanical power output.
  • Lower Maintenance: 3-phase motors generally require lower maintenance compared to other types of motors. The balanced three-phase power supply and the absence of starting components, such as capacitors or centrifugal switches, reduce wear and tear, resulting in longer motor life and reduced maintenance requirements.
  • Wide Availability and Standardization: 3-phase motors are widely available and standardized, making them easily accessible for various applications. They are manufactured in a wide range of sizes and power ratings, allowing for flexibility in selecting the appropriate motor for specific requirements.

Overall, the advantages of using a 3-phase motor include high efficiency, better power factor, high starting torque, smooth operation, compact size and weight, higher power output, lower maintenance requirements, and wide availability. These advantages make 3-phase motors suitable for a wide range of applications in industrial, commercial, and residential settings.

3 phase motor

What factors should be considered when selecting a 3-phase motor for an application?

When selecting a 3-phase motor for a specific application, several factors need to be considered to ensure optimal performance and compatibility. Here’s a detailed explanation of the key factors to consider:

  • Power Requirements: The power requirements of the application should be carefully evaluated. Determine the required horsepower (HP) or kilowatt (kW) rating of the motor based on the load characteristics, such as the torque and speed requirements. Consider both the continuous power requirements and any intermittent or peak power demands that the motor may experience during operation.
  • Voltage and Frequency: Verify the available voltage and frequency of the power supply in the application. Ensure that the motor’s voltage and frequency ratings match the power supply to ensure compatibility and safe operation. Common voltage ratings for 3-phase motors include 208V, 230V, 460V, and 575V, while frequencies are typically 50Hz or 60Hz.
  • Motor Speed: Determine the required speed of the motor for the application. Depending on the specific requirements, you may need a motor with a fixed speed, multiple speed options, or variable speed capabilities. Consider the motor’s synchronous speed, which is determined by the number of poles and the power supply frequency, and ensure it aligns with the desired operating speed.
  • Motor Enclosure: The motor enclosure should be selected based on the environmental conditions in which the motor will operate. Consider factors such as temperature, humidity, dust, corrosive substances, and the presence of flammable or explosive materials. Common motor enclosures include open drip-proof (ODP), totally enclosed fan-cooled (TEFC), and explosion-proof enclosures.
  • Efficiency: Energy efficiency is an important consideration to minimize operating costs and environmental impact. Look for motors that meet or exceed applicable efficiency standards, such as the NEMA Premium efficiency standards in the United States or the IE efficiency classes defined by the International Electrotechnical Commission (IEC).
  • Motor Size and Mounting: Consider the physical size and mounting requirements of the motor, ensuring it fits within the available space and can be securely mounted. Check the motor’s frame size, which indicates the physical dimensions and mounting compatibility, such as NEMA frame sizes in the United States or IEC frame sizes internationally.
  • Starting Method: Evaluate the starting requirements of the application. Depending on the load characteristics and the power supply capacity, you may need a motor with specific starting methods, such as direct-on-line (DOL) starting, reduced voltage starting (e.g., star-delta or autotransformer starting), or electronic soft starters. Consider the starting torque and current requirements to ensure successful motor startup.
  • Overload Protection: Determine the type of overload protection required for the motor. Overload protection devices, such as thermal overload relays or electronic motor protection relays, help prevent motor damage due to excessive heat or current overload. Select an appropriate overload protection device based on the motor’s power rating and the specific application requirements.
  • Reliability and Serviceability: Consider the reliability and serviceability aspects of the motor. Look for motors from reputable manufacturers with a track record of producing reliable products. Evaluate the availability of spare parts, technical support, and service centers for maintenance and repairs. Additionally, consider factors such as motor lifespan, bearing design, and ease of access for maintenance tasks.
  • Compliance and Certifications: Ensure that the selected motor complies with relevant industry standards and certifications, such as NEMA, IEC, UL (Underwriters Laboratories), CSA (Canadian Standards Association), or specific industry requirements. Compliance with these standards ensures that the motor meets safety, performance, and quality standards.

Considering these factors when selecting a 3-phase motor helps ensure that the motor is well-suited for the application, delivers optimal performance, and operates reliably and efficiently over its lifespan.

3 phase motor

How do 3-phase motors handle variations in voltage and frequency?

3-phase motors are designed to handle variations in voltage and frequency within certain limits. Here’s a detailed explanation of how they handle these variations:

  • Voltage Variations:
    • 3-phase motors are typically designed to operate within a specific voltage range. As long as the applied voltage remains within this range, the motor can function properly.
    • When the voltage supplied to a 3-phase motor varies, the motor’s performance may be affected. If the voltage drops significantly below the rated voltage, the motor may experience reduced torque and power output. Conversely, if the voltage exceeds the rated value, the motor may draw excessive current, leading to overheating and potential damage.
    • To handle voltage variations, 3-phase motors often incorporate protective devices such as thermal overload relays or motor protection circuits. These devices can detect abnormal operating conditions caused by voltage fluctuations and take appropriate actions, such as shutting down the motor or reducing its load.
  • Frequency Variations:
    • The speed of a 3-phase motor is directly proportional to the frequency of the power supply. When the frequency deviates from the rated value, the motor’s speed and performance can be affected.
    • If the frequency increases, the motor’s speed will also increase, resulting in higher torque and power output. Conversely, a decrease in frequency will lead to a decrease in speed, resulting in reduced torque and power output.
    • 3-phase motors can handle frequency variations up to a certain extent. However, if the frequency deviates too far from the rated value, the motor’s performance may become unstable or it may fail to start altogether.
    • For precise control over motor speed, variable frequency drives (VFDs) can be used. VFDs can adjust the frequency of the power supply to the motor, allowing for precise speed control and compensation for frequency variations.
  • Voltage and Frequency Tolerance:
    • International standards specify the acceptable voltage and frequency tolerances for 3-phase motors. These standards ensure that motors can operate reliably and safely within specified voltage and frequency ranges.
    • Motor manufacturers often provide voltage and frequency tolerance specifications for their products. These specifications indicate the allowable range of voltage and frequency variations that the motor can handle without compromising its performance or safety.
    • When selecting a 3-phase motor, it is important to consider the voltage and frequency requirements of the specific application and ensure that the motor’s voltage and frequency ratings align with the available power supply.

Overall, 3-phase motors are designed to handle variations in voltage and frequency within specified limits. They incorporate protective devices and can be paired with control devices such as VFDs to compensate for voltage and frequency fluctuations, ensuring optimal performance and protection against potential damage.

China Good quality Ms 220/380V 660V 50Hz 60Hz 2/4/6/8poles Three-Phase Aluminum Housing Electric Asynchronous Motor Manufacturer   with Great quality China Good quality Ms 220/380V 660V 50Hz 60Hz 2/4/6/8poles Three-Phase Aluminum Housing Electric Asynchronous Motor Manufacturer   with Great quality
editor by CX 2023-12-11