When powering AC motors, the electrical supply can be at full power to run at full speed or at variable power to run at variable speed. Applications with varying loads benefit from the variable speed ...

A synchronous and synchronous motors are the two main categories of ac motors. The induction motor is a common form of asynchronous motor and is basically an ac transformer with a rotating secondary.

Matching drive to motor is essential to gain the best combination of torque, speed, and efficiency. Selecting the right drive is essential to getting the best performance and efficiency from an ...

Motors and drives are the longtime workhorses of the HVAC industry. These devices work long hours in tough conditions without complaint. And today’s motors and drives are not only tough, they’re ...

AutomationDirect has added new NEMA 4X AC drives to their IronHorse brand of drives. These new high-performance VFDs support four control modes including V/Hz, slip compensation, sensorless vector, ...

During the constant worldwide campaign to make the planet as clean as possible, electric vehicle (EV) drivers have an improving chance of driving cars with fewer moving parts. One of an EV’s greatest ...

Electric motors are ubiquitous in industrial applications. Whether it is a DC type, an AC type or a special type like a stepper motor or brushless DC motor, electric motors play a vital role in the ...

Elektor International Media sent me a copy of Martin Brown’s book, Power Electronics in Motor Drives: Principles, Application and Design. Brown worked with Siemens UK for almost 30 years and designed ...

From tiny hysteresis motors that drive electric clocks to huge synchronous motors that develop more than 50,000 hp, the alternating current (AC) motor has become an indispensable part of everyday life ...