Product Description

Three phase AC motor specially for Micro-cycloid speed reducers.
Scope of Power: 0.18 kw – 1.5 kw; Frame Number: 63 – 90
Three phase AC motor specially for Cycloid speed reducers.
Scope of Power: 0.37 kw – 15 kw; Frame Number: 71 – 160

ZheJiang CHINAMFG Electromechanical Technology Co., Ltd, (originally ZHangZhoug Yinda) can date back to the year of 1992. Located in Xihu (West Lake) Dis. Hi-Tech Zone of ZheJiang Province, China, the company takes an area of 16,000 sqm with near 200 employees. The factory is equipped with complete series of production lines and equipment. And the annual output value is around 30 million US dollars.

Hilair specializes in the design and development of AC motors, such as IE1, IE2, IE3, IE4 series, cast iron and aluminum housing, AC & DC braked motors, variable frequency motors, grinding machine motors, etc.

Products have been exported to all over the world with the best prices and high quality.

We always insist on the principle of “people oriented, scientific and technological innovation”. We look CHINAMFG to your long term cooperation.

Q1 Are you a manufacturer or a trading company?
      We are a manufacturer of AC asynchronous motors in China.
Q2 Where is your factory?
      Xihu (West Lake) Dis., ZheJiang province.
Q3 What is your terms of payment ?
      Payment=1000USD, 30% T/T in advance , balance before shippment.
Q4 What about delivery time?
       Normally, 30 days after the receipt of payment.
Q5 About shipment?
      By sea, By air and By express delivery.
Q6 About sample?
      Available.

Application: Universal
Speed: Constant Speed
Number of Stator: Three-Phase
Function: Driving
Casing Protection: Closed Type
Number of Poles: 2-10
Samples:
US$ 50/Piece
1 Piece(Min.Order)

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Customization:
Available

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How does the speed control mechanism work in AC motors?

The speed control mechanism in AC motors varies depending on the type of motor. Here, we will discuss the speed control methods used in two common types of AC motors: induction motors and synchronous motors.

Speed Control in Induction Motors:

Induction motors are typically designed to operate at a constant speed determined by the frequency of the AC power supply and the number of motor poles. However, there are several methods for controlling the speed of induction motors:

  1. Varying the Frequency: By varying the frequency of the AC power supply, the speed of an induction motor can be adjusted. This method is known as variable frequency drive (VFD) control. VFDs convert the incoming AC power supply into a variable frequency and voltage output, allowing precise control of motor speed. This method is commonly used in industrial applications where speed control is crucial, such as conveyors, pumps, and fans.
  2. Changing the Number of Stator Poles: The speed of an induction motor is inversely proportional to the number of stator poles. By changing the connections of the stator windings or using a motor with a different pole configuration, the speed can be adjusted. However, this method is less commonly used and is typically employed in specialized applications.
  3. Adding External Resistance: In some cases, external resistance can be added to the rotor circuit of an induction motor to control its speed. This method, known as rotor resistance control, involves inserting resistors in series with the rotor windings. By varying the resistance, the rotor current and torque can be adjusted, resulting in speed control. However, this method is less efficient and is mainly used in specific applications where precise control is not required.

Speed Control in Synchronous Motors:

Synchronous motors offer more precise speed control compared to induction motors due to their inherent synchronous operation. The following methods are commonly used for speed control in synchronous motors:

  1. Adjusting the AC Power Frequency: Similar to induction motors, changing the frequency of the AC power supply can control the speed of synchronous motors. By adjusting the power frequency, the synchronous speed of the motor can be altered. This method is often used in applications where precise speed control is required, such as industrial machinery and processes.
  2. Using a Variable Frequency Drive: Variable frequency drives (VFDs) can also be used to control the speed of synchronous motors. By converting the incoming AC power supply into a variable frequency and voltage output, VFDs can adjust the motor speed with high accuracy and efficiency.
  3. DC Field Control: In some synchronous motors, the rotor field is supplied by a direct current (DC) source, allowing for precise control over the motor’s speed. By adjusting the DC field current, the magnetic field strength and speed of the motor can be controlled. This method is commonly used in applications that require fine-tuned speed control, such as industrial processes and high-performance machinery.

These methods provide different ways to control the speed of AC motors, allowing for flexibility and adaptability in various applications. The choice of speed control mechanism depends on factors such as the motor type, desired speed range, accuracy requirements, efficiency considerations, and cost constraints.

China Custom AC Motor for Cycloid Speed Reducer Three Phase Original Manufacturer   vacuum pump for ac	China Custom AC Motor for Cycloid Speed Reducer Three Phase Original Manufacturer   vacuum pump for ac
editor by CX 2023-10-19