It’s impossible to balance line-to-line voltages perfectly in three-phase circuits, so they typically differ by a few volts or more. However, if voltage unbalance exceeds 1%, it can markedly decrease ...

Toshiba Electronics Europe GmbH has begun engineering sample shipments of the AEC-Q100 compliant TB9M030FG, a new addition to the SmartMCD series that integrates an MCU and motor driver. The product ...

Variable frequency drives (VFDs) are used in many industrial applications to improve energy efficiency and provide precise control over electric motors. By adjusting the frequency, voltage and current ...

Section 430.6(A) of the 2023 NEC instructs electricians to size motor connection conductors based on the allowable ampacity tables in Table 310.16. Electricians constructing 3-phase motor circuits “in ...

Early incarnations of the electric motor first appeared in the 1740s through the work of Scottish Benedictine monk and scientist, Andrew Gordon. Other scientists such as Michael Faraday and Joseph ...

In the original version of this article, the second figure contained an error. The image has been updated. It’s important for engineers to have a good, working ...