Due to the wide variety of sizes and configurations available, choosing the right electric motor can be a daunting process. For example, the best motor for a continuously running conveyor isn’t necessarily the best motor for a conveyor used intermittently. Besides the duty cycles, the connected equipment and the working environment must also be considered.
To assist you in your electric motor decision process, we’ve listed the fundamental factors to consider with a brief explanation below. As part of our commitment to keep you up and running, we’re standing by to help. Simply call the Hi-Speed Team at 1-800-713-0103 or email us with your questions.
Duty Cycles
Most applications either run continuously or for short periods, as seen in the conveyor example above. As run times increase, a higher duty cycle is required to avoid potential power loss. The operational environment temperature must also be considered to prevent overheating during operation.
Voltage
The motor voltage must match the power source connections available in your facility. Smaller electric motors may require only a wall socket, while larger industrial motors require an electric sub-panel or an inline disconnect device for connection to the power grid.
Electric Motor Torque
Torque is the force required to start up and accelerate loads to a specific rate within a set time. The goal is to ensure the motor can adequately power the equipment without excessive strain, power usage, or heat buildup.
Electric Motor Enclosure
Operational conditions determine the type of enclosure that should be used to provide maximum motor protection. Examine the areas surrounding the electric motor location to determine if the motor will be exposed to dirt, dust, debris, moisture, or excessive heat. This will help you decide which enclosure option is best suited to your needs. For example, food and beverage locations typically utilize stainless steel castings to protect against spills or corrosion.
Capacity and Size
Another key factor for determining the correct size is whether the motor will be
moved from one location to another around the facility, or will it be permanently installed. The right electric motor must provide the torque necessary without generating more heat than the insulation can safely handle.
Electric Motor Orientation
Horizontal AC electric motors provide reliable and continuous power under demanding conditions, such as conveyors, compressors, and pumps.
Vertical AC electric motors are designed and built to withstand the weight of internal rotating parts and thrust loads. These advanced features allow them to work efficiently under extreme conditions.
Electric Motor Speed
Depending on their design and construction, some electric motors are superior for high-speed applications, and others are better suited for low- to moderate-speed needs. Some applications may require adjustable speed controls to manage torques and rotation based on changing load size.
Operational Life Span
A motor’s operational efficiency can directly impact the lifespan of a connected tool or equipment. High-quality motors typically offer a better return on investment (ROI), lower maintenance costs, and longer lifespan because they utilize superior internal components or assemblies. Regular maintenance and inspections can keep you running at peak performance across the motor’s lifecycle.
Additional Electric Motor Factors
In addition to the points outlined above, different industries or applications may require encoders & sensors, rotational controls, and climate protection factors as part of the motor selection process.
As part of our commitment to keep you up and running, Hi-Speed carries only the top electric motor manufacturers and replacement parts available, like TECO-Westinghouse. With a legacy dating back to George Westinghouse, they are a world leader in manufacturing electric motors from fractional to 100,000 HP.
These high-quality motors are used to drive pumps, fans, compressors, rolling mills, grinders, crushers, and a variety of other rugged applications. TECO-Westinghouse motors and generators are utilized in petroleum, chemical, pulp, paper, mining, marine propulsion, steel, electric utility, and other industries throughout the world.
In 2009, TECO-Westinghouse initiated the development of a medium-voltage variable frequency drive, and in 2014, it shipped its first VersaBridge Medium Voltage Drive.
Today, the TECO-Westinghouse catalog includes.
- Single-Phase ODP motors
- Single-Phase TEFC motors
- Three-Phase ODP motors
- Three-Phase TEFC motors
- Medium Voltage ODP motors
- Medium Voltage TEFC motors
- Vertical Hollow Shaft motors
- Vertical Solid Shaft motors
In addition to a range of drive controls, green energy solutions, and custom motor options, we offer solutions to enhance operating efficiency and longevity.
In addition to TECO-Westinghouse, Hi-Speed carries other top electric motor brands and can help you find the best option for your specific application and industry. To learn more about choosing the right electric motor for your business, call us at 1-800-713-0103 or email us, and allow one of our electric motor experts to answer your questions regarding choosing the best electric motor option.
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