Motors used for refrigeration equipment (including air conditioning systems) are hermetic. When we say “hermetic,” what do we mean? It’s a motor that’s sealed from the outside. In the case of ...

Electricity does not choose “the path of least resistance,” but flows on all paths presented to it. The flow divides among those paths in inverse proportion to their impedances (those paths with lower ...

A friend who was buying an older house was concerned about electrical safety and asked for my opinion as an electrical engineer. All of the AC receptacles (also called outlets) in the house were the ...