With this efficiency calculator for motors you can convert and calculate online automatically, easily, quickly and for free any efficiency associated with electric motors. We also show you the most common power factor values. Formulas for calculating the efficiency of DC, AC, single-phase, two-phase and three-phase motors: Formula motor DC efficiency: Formula motor efficiency AC, … Read more
NEMA Design B Electrical Motors Efficiency Electrical motors constructed according NEMA Design B must meet the efficiencies below. Power (hp) Minimum Nominal Efficiency1) 1 – 4 78.8 5 – 9 84.0 10 – 19 85.5 20 – 49 88.5 50 – 99 90.2 100 – 124 91.7 > 125 92.4 1) NEMA Design B, Single Speed 1200, … Read more
Power factor: Power factor is the ratio of working power to apparent power. It measures how effectively electrical power is being used. A high power factor signals efficient utilization of electrical power, while a low power factor indicates poor utilization of electrical power. Power Factor is the cosine of the phase angle between current and … Read more
If you want to convert from Hp to Amps you only have to use the calculator that we present below. This calculator is based on the Hp to Amps formula . To complement the calculator, we show how the conversion is carried out step by step , some descriptive examples from Hp to Amperes, the equivalence table , and the most common power factors and efficiencies for motors. Hp to Amps calculation … Read more
With this calculator you can automatically convert from kVA to Hp , you will also find the conversion formula and some definitions. We also explain some examples , a table of quick equivalences , the steps on how to convert from kVA to HP and, if required, the most common power factor and efficiency . Definition P.F, S (kva), Motor Efficiency and H.P (horsepower): H.P: The horsepower (hp) is a unit in the … Read more