The expansion of a family of single-phase Smart-UPS On-Line now includes 5 to 10-kVA models. The 5-kVA UPS units have a power factor of 0.9, while the 6- to 10-kVA units feature unity power factor ...
Recently, you may have noticed advertisements for a device that claims to reduce your monthly home electricity bills. The advertising literature states that you are paying for the added electricity ...