Self Excited Series DC Motor Calculator

Self Excited Series DC Motor Calculator

E(supply voltage)

V

I_{a rated}(rated current)

A

R_a(armature resistance)

ohm

R_s(shunt resistance)

ohm

T_rated(rated torque)

N-m

ω_rated(rated speed)

rpm

T_new(new torque)

N-m

CALCULATERESET

Result

E_{b rated}(rated back emf)

V

I_{a new}(new current)

A

E_{b new}(new back emf)

V

ω_new(new speed)

rpm

Click here to view image

where

 E = DC supply voltage

 E_b = back emf

 I_a = armature current

 R_a = armature resistance

 R_s = shunt resistance

 ω = rotational speed

 T = toruqe