Single-phase motors, adjustable-speed drives (ASDs), and power factor (PF) correction applications often depend on capacitors to operate properly. This article explains how to test these critical ...

Potential relays are commonly found on many smaller, single-phase, capacitor-start, capacitor-run motors in the HVACR industry. Their function is to assist in starting the electric motor. Potential ...

A perusal of the NEMA document shows that capacitor-start and capacitor-run fractional horsepower motors will be affected by the new standards which in general, will become effective on March 9, 2015.