Induction Motor Formulas with Calculations


Electrical motors are the machines which convert the electrical input to the mechanical energy. All motors are made up of a stator (the stationary part) and the rotor (the rotating part). As motor runs on electricity, there are various properties which are associated with its working. Such properties include a number of poles, speed, frequency, … Read more

Load Factor Formula, Definition and Applications with Solved Calculations and Examples

Load factor is one of the very important and basic concepts in Electrical Power Engineering and Power Generation field. In this article Electrical Engineering XYZ shares load factor formula, definition and applications with solved calculations and examples. You can watch the video below or skip the video to read text. What is Load Factor In … Read more

Torque Formula in Electrical Motors

We previously studied four induction motor formulas relating: In this article an expansion of Torque Formula in Electrical Motors is presented below. The torque (T) of a motors is directly proportional to its power (P) and inversely proportional to its rotational speed or RPM (N). The mathematical formula relating torque, power, and rotational speed is: … Read more

Demand Factor Formula in Electrical Engineering


Demand factor is the ratio between maximum demand to the connected load on a power system. The mathematical formula for Demand factor (DF) is: DF = Maximum Demand/Connected load Example: A power station has 5 MW load connected to it. While the maximum demand is 3 MW. Find the D.F. Solution: DF = 3 MW/5 … Read more

Generator Efficiency Formula

The efficiency of a generator is defined as the ratio of power output in watts to power input in horsepower. The mathematical formula expression of generation efficiency is as follows: Where Pout = Power output in watts Pin = Power input in horsepower Eff (%) = Percentage Efficiency Example Problem Example The power output of … Read more