Braking type of three-phase AC brake motor
Publish Time:
2019-11-06
Three-phase AC brake motors (three-phase asynchronous motors) are widely used and have the advantages of being lightweight, low-noise, and effective. Based on their principle, there are several main braking types.
1. Holding brake: This is also a common braking method, mainly used in industries such as lifting machinery, such as winches and electric machines. Advantages include accurate positioning and preventing the motor from falling freely after a sudden power failure during operation, causing accidents, such as in elevators and cranes. Disadvantages include severe wear, short lifespan, large vibration, and large size.
2. Regenerative braking: A braking mode that utilizes the energy of the rotating rotor to cut the magnetic flux and generate a braking torque. In essence, the kinetic energy of the rotor is consumed in the resistance of the circuit. Advantages include strong and stable braking force, accurate positioning. Disadvantages include the need for DC power, small braking force at low speeds, and high cost.
3. Plugging braking: Reversing the positive and negative poles of the motor changes the direction of the current and thus the direction of the torque. Advantages include strong braking force, rapid braking, low cost, and simplicity. Disadvantages are equally obvious: large impact force, easy damage to transmission components, and poor positioning accuracy.
AC brake motors are simple to operate, low in cost, and widely used in the market. If you have any needs, please feel free to call our company or visit us for an on-site inspection.
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