Product Description

HangZhoustone Three Phase Explosion Proof Electric/Electric  Induction AC Motor 

Explosion-proof ac motor is 1 of the important electrical products in the petroleum, chemical and coal industries. Our explosion proof motor has high operational safety, excellent performance, low noise and vibration and meets the need of environment protection. 

For the explosion proof high efficiency electric motor, we have YBBP, YBX3, YBX4, YBX5,YFBBP, YFBX3 series, from 0.18kW to 315kW. For different voltage, frequency and different power, we can do the customized.

The Product Details of Three Phase Electric/Electrical Ex-proof AC Motor

The Product Parameters of Three Phase Electric/Electrical Ex-proof AC Motor

The Conditions of Use of Electric/Electrical Induction Three Phase Ex-proof AC Motor :

1. The altitude does not exceed 1000 meters. Higher altitudes support customization.
2. The highest ambient air temperature, no more than 40 ° C. Higher temperature support customization.
3. The power frequency of ex-proof AC motor is 50Hz(60Hz) ± 1%.
4.The variation range of working voltage shall not be greater than ± 5% of rated voltage.
5.The ex-proof electric AC motor rating is continuous duty S1.
6.Explosion-proof grade ExdIIBT4Gb, suitable for electric drive in underground coal mine (non-mining working face)and factories containing explosive gas mixture in line with the above standard in the workplace.

The Application of Three Phase Electric/Electrical Ex-proof AC motor

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Industrial
Operating Speed: Constant Speed
Number of Stator: Three-Phase


.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

3 phase motor

How do 3-phase motors differ from single-phase motors?

3-phase motors and single-phase motors differ in several aspects, including their power supply, construction, performance characteristics, and applications. Here’s a detailed explanation of the differences between 3-phase motors and single-phase motors:

  • Power Supply: The primary difference between 3-phase motors and single-phase motors is their power supply. 3-phase motors require a three-phase power supply, which consists of three alternating current (AC) voltage waveforms that are 120 degrees out of phase with each other. In contrast, single-phase motors operate on a single-phase power supply, which consists of a single AC voltage waveform.
  • Construction: The construction of 3-phase motors and single-phase motors also differs. 3-phase motors have three sets of windings evenly spaced around the motor’s stator, whereas single-phase motors typically have only one set of windings. The multiple windings in 3-phase motors enable the creation of a rotating magnetic field, which is essential for their operation.
  • Starting Mechanism: 3-phase motors and single-phase motors have different starting mechanisms. 3-phase motors can start on their own with a simple direct-on-line (DOL) starting method, where the motor is connected directly to the power supply. In contrast, single-phase motors require additional starting mechanisms, such as capacitors or centrifugal switches, to overcome the need for a rotating magnetic field during startup.
  • Starting Torque: 3-phase motors tend to have higher starting torque compared to single-phase motors. The balanced three-phase power supply and the design of 3-phase motors allow them to produce a strong rotating magnetic field, enabling efficient starting and acceleration. Single-phase motors, on the other hand, often experience lower starting torque due to the absence of a rotating magnetic field during startup.
  • Efficiency: In terms of efficiency, 3-phase motors are generally more efficient than single-phase motors. The balanced three-phase power supply and the design of 3-phase motors result in smoother operation and reduced losses compared to single-phase motors. This higher efficiency translates to better performance and energy savings in applications where 3-phase motors are utilized.
  • Power Rating: 3-phase motors are commonly available in higher power ratings compared to single-phase motors. The ability of 3-phase motors to deliver higher power output makes them suitable for applications that require greater torque and horsepower, such as heavy-duty industrial machinery and equipment. Single-phase motors are typically used in lower power applications, such as household appliances and small tools.
  • Applications: The applications of 3-phase motors and single-phase motors also differ. 3-phase motors are widely used in industrial and commercial applications, including pumps, compressors, HVAC systems, electric vehicles, and robotics. Single-phase motors are commonly found in residential and small-scale applications, such as household appliances (e.g., refrigerators, air conditioners, and washing machines) and small tools (e.g., fans and power tools).

These are the key differences between 3-phase motors and single-phase motors. While 3-phase motors offer advantages in terms of efficiency, starting torque, and power rating, single-phase motors are suitable for smaller-scale applications and residential use. The selection of the motor type depends on the specific requirements of the application and the availability of the appropriate power supply.

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

What role do 3-phase motors play in the efficiency of HVAC systems?

3-phase motors play a crucial role in enhancing the efficiency of HVAC (Heating, Ventilation, and Air Conditioning) systems. Here’s a detailed explanation of their contribution:

  • Air Handling Units (AHUs):
    • 3-phase motors are commonly used in HVAC systems to power the fans in air handling units (AHUs). These fans circulate and distribute conditioned air throughout the building.
    • The use of 3-phase motors in AHUs allows for efficient and reliable operation. They can deliver the necessary airflow at varying static pressures, ensuring optimal air distribution and ventilation in different zones of the building.
  • Chillers and Cooling Towers:
    • In large-scale HVAC systems, 3-phase motors are utilized in chillers and cooling towers. These components are responsible for cooling the water used in the HVAC system.
    • Efficient 3-phase motors drive the compressors and fans in chillers and cooling towers, enabling effective heat transfer and temperature control. This results in improved energy efficiency and cooling performance of the HVAC system.
  • Variable Air Volume (VAV) Systems:
    • 3-phase motors are often employed in Variable Air Volume (VAV) systems, which allow for individual control of airflow in different zones or rooms of a building.
    • By using 3-phase motors in VAV systems, the air volume can be easily adjusted to meet the specific cooling or heating demands of each zone. This enables precise temperature control, reduces energy wastage, and enhances overall HVAC system efficiency.
  • Energy-Saving Measures:
    • 3-phase motors in HVAC systems can be integrated with energy-saving measures to improve efficiency. For example, they can be paired with variable frequency drives (VFDs), which allow for the modulation of motor speed and power consumption based on actual needs.
    • VFDs control the speed of 3-phase motors, ensuring that they operate at optimal speeds for different load conditions. This results in significant energy savings, as motors consume less power when operating at lower speeds.
  • Reliability and Durability:
    • HVAC systems require reliable and durable components to ensure continuous operation. 3-phase motors are known for their robust construction and ability to withstand the demanding conditions typically found in HVAC applications.
    • The reliability of 3-phase motors minimizes the risk of motor failures and unexpected downtime, allowing HVAC systems to operate efficiently and maintain occupant comfort.

Overall, 3-phase motors play a critical role in enhancing the efficiency of HVAC systems. They power the fans, compressors, and pumps, enabling effective air distribution, temperature control, and heat transfer. Their integration with energy-saving measures further optimizes energy consumption, resulting in improved overall HVAC system efficiency and reduced operating costs.

China OEM Ybx3 Series Explosion- Proof Three Phase AC Electrical Induction Motor   vacuum pump ac system	China OEM Ybx3 Series Explosion- Proof Three Phase AC Electrical Induction Motor   vacuum pump ac system
editor by CX 2024-04-02