# DC Motors

• Motors

## Why Do DC Motors Have Higher Starting Torque than AC Motors?

Why is the Starting Torque of a DC Motor Greater Than That of an AC Motor? DC (direct current) motors generally have higher starting torque compared to AC (alternating current)…

• Electrical Machines

## Swinburne’s Test of DC Machines – Circuit and Applications

Swinburne’s Test of DC Motors & Generators – Circuit, Calculation, Advantages & Applications What is Swinburne’s Test? Swinburne’s test (named after James Swinburne) is an indirect method of testing a…

• Motors

## Losses in a DC Motor – Power Stages & Efficiency of DC Motor

Losses, Power Stages and Efficiency of a DC Motor Losses in a DC Motor It is a universal truth that the output of a DC machine (DC motor or DC…

• Motors

## Types of Electric Motors – Classification of AC, DC & Special Motors

Classification of Different Types of Electrical Motors An Electrical Motor is a machine that converts electrical energy into mechanical energy. It is used for generating torque to lift loads, move…

• Motors

## Power, Voltage and EMF Equation of a DC Motor – Formulas

DC Motors Formulas and Back EMF Equation EMF Equation of a DC Motor The basic DC motor’s E.M.F equation is given below. Eb = PΦNZ  / 60A Where; P is…

• Motors

## Speed Control of DC Motor – Voltage, Rheostatic & Flux Control Methods

Speed Control Methods of DC Motor – Voltage, Rheostatic & Flux Control of Series & Shunt DC Motors A DC motor is used to convert the direct current (DC) electrical…

• Electrical Machines

## DC Machine – Construction, Working, Types and Applications

Construction, Classification, and Applications of DC Machine According to the source of supply, electrical machines are classified into two types; AC machine and DC machine. For example, DC Motors, DC…

• EE Symbols

## Electric Motors Symbols

Symbols of AC / DC, Single Phase & Three Phase Electric Motors A list of all electrical motors symbols in single image is given below as a reference at the…

• Motors

## Cable Size Calculation for LT & HT Motors

How to calculate the Cable size for LT & HT Motors? Selecting the right cable size for the motor is an important parameter for the Industry whether it’s during Installation…

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