Each motor branch circuit must be protected against short circuit and ground faults by an overcurrent device sized no greater than the percentages listed in Table 430.52. A branch-circuit ...

For IGBTs, the on-state voltage drop is a critical specification to consider. This drop includes both the diode drop across ...

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 ...

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 ...