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The secondhand on the Doomsday
dial ominously spins around the face,
slowly but ever so surely inching the
motor industry towards its inevitable
terminus:
This issue we take a long, hard look at motor efficiency, and you should, too. After all, electric motors used in industrial settings are the single largest consumer of electricity in the United States. Upgrading your electric motors is not only good for the environment, but it’s
also good for your bottom line. Sure, saving electricity lessens
the burden on our country’s energy infrastructure. But it
also saves you money in the long run.
When talking about high-end machining or manufacturing applications that include direct-drive technology, one of the key advantages of utilizing this particular transmission method is its endurance. Because of the very nature of direct-drive motors they are able to operate at peak performance levels indefinitely — without any kind of wear or aging — as long as the motor isn’t pushed past its capacity.
Unfortunately, because this isn’t a perfect world, unexpected things can happen which can cause the motor to overheat. Whether the heat source is due to a parameter being input incorrectly, or an unexpected external force causing more resistance than expected — it is important to have certain forms of thermal protection in place. Since torque motors are built in such a way that they cannot be
repaired and yet maintain their efficiency, it is vital to prevent any overheating — thus precluding the
need to purchase a new one.
Over the past few decades, energy efficiency in motors has become an ever-increasing concern for OEMs and
manufacturers alike. With multiple
energy bills mandating higher efficiency across ever-broader spectrums of motors, including the most recent Small Motor Rule by the Department of Energy, efficiency has become an essential consideration when choosing a new motor.
One of the key challenges in the mining
industry today is maintaining throughput
in the face of ore grade quality that
has declined by 40 percent in the last
decade.