Engineering Notes

# Welcome to Oriental Motor's "Engineering Notes" Blog:

Products and technology are only valuable when coupled with skilled people and services to support them. ORIENTAL MOTOR U.S.A. CORP. has dedicated over 33 years to establishing a service and support system to better serve customers. It is our goal to provide the best product and service from the design phase, through the sale and beyond.

Our blog will feature:

• Introductions to New Products and Technology
• Application Examples, Improvements and Problem Solving
• Tips and Recommendations for Motor Selection, Installation and Use

Now that we understand the calculations behind load torque and load inertia, we're a little closer to motor selection.  You might be wondering why I separated load torque and acceleration torque calculations.  That's because in order to calculate for acceleration torque, load inertia and speed must be calculated first.

Other than torque or speed, another factor should be considered when sizing motors.

Proper sizing of a motor requires that 3 criteria must be met: torque, load inertia, and speed.  For the first part of this Motor Sizing Basics series, I will be explaining what load torque is, how to calculate it for specific application examples, and how it fits into the torque requirement for the application.

An AC motor is not working like it's supposed to.  What do you do?  Before replacing the motor, here are three ways to start troubleshooting your AC motor with a circuit tester.

Topics: AC Motors, Troubleshooting

For a permanent-split capacitor type AC motor (also known as capacitor start and run AC motors), a capacitor is required for proper operation.  Enjoy a cup of coffee as we explain why.

Topics: AC Motors

AC motors have the same operating theory, but by changing its design a little, you can modify its characteristics to suit certain applications better.  In the last post, I focused on AC induction motors for unidirectional applications.  In this post, I will explain what makes AC reversible motors and AC electromagnetic brake motors ideal for start/stop, reversing, or vertical applications, and demonstrate how to operate them.

Topics: AC Motors, VIDEOS

AC motors are simple to control, rugged, and cost effective for general purpose applications.  These reasons are why they are the most popular type of electric motor across various industries.  In this post, we will briefly introduce induction motors and demonstrate how to operate these motors.

Topics: AC Motors, VIDEOS

An AC motor can be simple to use, but its speed changes according to the size of the load or amount of voltage supplied.  For an application where keeping a uniform speed is important, there is another type of motor that can improve performance.