Understanding Voltage Unbalance Measurements and Calculations Voltage unbalance is simply a variation in the phase-to-phase voltage in 3-phase electrical systems.

Even though the function of single phase and three phase relays are quite similar, their applications can vary significantly. This is primarily due to the characteristics of three phase power circuits ...

Load calculations Loads may be continuous (operating 3 hr or longer) or noncontinuous. Your first step in branch circuit load calculations is to characterize each load as either continuous or ...

The proper selection of 3-phase solid state relays for motor control application depends not only upon a comprehensive understanding of 3-phase SSRs, but also of the 3-phase power system and ...

"A three-phase circuit provides greater power density than a one-phase circuit at the same amperage, keeping wiring size and costs lower.