TECO AC Drives

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TECO AC Drives

Importance of AC Drives


AC drives, or technically known as the variable-frequency drive, are components of electrical system which are used to regulate the torque and motor speed. This component triggers the control through changing the voltage and motor input frequency corresponding to AC drives. The controls installed in this drive allow users to set the minimum and maximum motor speed that is appropriate for the user's processing needs. These drives can be found from common household appliances to large compressors and machineries used by vast processing plants.


AC drives are powered through three sub-components: the AC motor, the main drive controller assembly and the driver operator interface. Each of these components has their specific role in the proper functioning of the variable-frequency drive. The AC motor is responsible for gathering and controlling magnetic force to power up the drive. This can be operated using a single or three-phase induction motor. Experts recommend the use of the three-phase induction motor since this can be used for a variety of functions as opposed to single motor. Users should keep in mind that the AC motor should be designed appropriately for the function they plan to use it with.

The second sub-component is the main drive controller assembly. This assembly system converts incoming electric power to an inverter output depending on the current used (AC or DC). The primary responsibility of this component is to adjust the voltage and frequency of the motor within the device. Typically, a microprocessor is embedded in the sub-component to manage the overall functioning of the system.

AC Drive Control

Lastly, the driver operator interface is the component that users can use and control to adjust the drive's settings. This can be used to turn on the motor's power and control the speed that it is processing. Aside from this basic function, recent innovations in the driver operator interface allow manual/automatic control adjustments and reversing.  The interface also usually is installed with display screen, meters and signal lights which show the user's the current status of the drive's operations.

The use of AC drives provides two evident benefits to power operators. The first advantage is energy efficiency. Energy can be saved when using variable frequency drive since this only uses the energy that matches its current operating speed as compared to fixed speed drives. Energy savings is highly evident most specially for centrifugal pumps and fans. The energy savings that can be obtained through the use of AC drives can reduce operating cost and generate positive impact to the environment.

Choose AC Drives for Precision

Optimized control performance is the second advantage that can be attained from the use of AC drives. Manufacturing companies can use this component to help improve commercial and industrial processes through efficient control of pressure, acceleration, torque, speed, tension and temperature. As compared with fixed-speed drives, the AC drives steadily powers up, thus, significantly reducing mechanical stress that is employed to the equipment. Aside from this, various AC systems are specially designed to minimize electric stress to the motor. Since stress damage is lessened, manufacturing companies can expect to have lesser repairs expenses related to the equipment. This can also help prolong the useful life of the motor and the equipment.



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