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Electrical Engineering

Series motor terminal voltage Calculator

Electrical Engineering

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Series motor terminal voltage

Equation and meaning

\[V = E_a + l_a \cdot R_a + l_a \cdot R_f\]

Series motor with armature induced voltage Ea, armature current Ia,armature resistance Ra and field resistance R f, the terminal voltage V

Variables in this formula

E_a — E A
Enter this value unless it is the selected unknown.
l_a — L A
Enter this value unless it is the selected unknown.
R_a — R A
Enter this value unless it is the selected unknown.
R_f — R F
Enter this value unless it is the selected unknown.
V — Voltage
Voltage SI unit: V
Equation 2

Equation and meaning

\[V = E_a + l_a \cdot ( R_a + R_f )\]

Series motor with armature induced voltage Ea, armature current Ia,armature resistance Ra and field resistance R f, the terminal voltage V

Variables in this formula

E_a — E A
Enter this value unless it is the selected unknown.
l_a — L A
Enter this value unless it is the selected unknown.
R_a — R A
Enter this value unless it is the selected unknown.
R_f — R F
Enter this value unless it is the selected unknown.
V — Voltage
Voltage SI unit: V

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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