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Electrical Engineering

Primary resistance drop Calculator

Electrical Engineering

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Primary resistance drop

Equation and meaning

\[P_{U\_primary\_resistance\_drop} = \frac{I_{1} \cdot R_{1}}{E_{1}}\]

P.U primary resistance drop

Variables in this formula

E_1 — E 1
Enter this value unless it is the selected unknown.
I_1 — I 1
Enter this value unless it is the selected unknown.
P_U_primary_resistance_drop — P U Primary Resistance Drop
Enter this value unless it is the selected unknown.
R_1 — R 1
Enter this value unless it is the selected unknown.

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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