< script src = https: //opentype.js.org/dist/opentype.js> Electrical Design Manager DC Motors




DC Motor Calculator





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DC Motor Specifications

DC motors are electric motors that are powered by direct current (DC), such as from a battery or DC power supply. Their commutation can be brushed or brushless. The operation of a DC motor is relatively straightforward. A coil is placed in a magnetic field, and when an electric current passes through the coil, a torque is produced, causing the motor to turn. The entire process is driven by applying electrical power to the coil, with the source voltage having a direct relationship to the motor’s output speed. The speed of a brushed DC motor can be controlled by changing the voltage alone.

By contrast, an AC motor is powered by alternating current (AC) which is defined by both a voltage and a frequency. Consequently, motors that are powered by AC require a change in frequency to change speed, involving more complex and costly speed control.

This makes DC motors better suited for equipment ranging from 12VDC systems in automobiles to conveyor motors, both which require fine speed control for a range of speeds above and below the rated speeds.

EDM uses this standard or stock motor specifications along with a specific manufacturer's design test results to do the required motor calculations.


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DC Motor Tables Summaries:

Permant Magnet

Motor Specifications Motor Values Starter Specs Protection Cable Specs
Power Source System Voltage Motor Type Field Type Eff.% Armature Voltage Horse Power RPM Duty Cycle kWatts Running Amps Lock Rotor Torque Full Load Current Starter Starter Type Protection Cable Size Voltage Drop
Brush Permanent Magnet 80

Field Wound

Motor Specifications Motor Values Starter Specs Protection Cable Specs
Power Source System Voltage Motor Type Field Type Eff.% Wound Type Voltage Armature Voltage Field Voltage Horse Power RPM Duty Cycle kWatts Running Amps Lock Rotor Torque Full Load Current Starter Starter Type Protection Cable Size Voltage Drop
Brush Field Wound 85


Brushless

Motor Specifications Motor Values Starter Specs Protection Cable Specs
Power Source System Voltage Motor Type Field Type Eff.% Armature Voltage Horse Power RPM Duty Cycle kWatts Running Amps Lock Rotor Torque Full Load Current Starter Starter Type Protection Cable Size Voltage Drop
Brushless Permanent Magnet 80