Self-Excited Shunt DC Motor Calculator

Self-Excited Shunt DC Motor Calculator

Calculate key parameters for a self-excited shunt DC motor.

The motor is modeled using:
Field Current: \( I_f = \frac{V}{R_f} \)
Effective Flux: \( \phi = k_f \times I_f \)
Back EMF: \( E_b = V – I_a R_a \)
Motor Speed: \( \omega = \frac{E_b}{k \phi} \)
Developed Torque: \( T = k \phi I_a \)

* Enter values in SI units.

Step 1: Enter Motor Parameters

Example: 220 V

Example: 1000 Ω

Example: 0.5 Ω

Example: 10 A

Example: 0.05 V/(rad/s·Wb)

Example: 0.0005 Wb/A

Key Formulas:
\( I_f = \frac{V}{R_f} \)
\( \phi = k_f \, I_f \)
\( E_b = V – I_a \, R_a \)
\( \omega = \frac{E_b}{k\,\phi} \)
\( T = k \, \phi \, I_a \)