Advanced Electrical Voltage from Impedance Calculator

Understanding the Formulas Used

In electrical engineering, calculating voltage from current and impedance involves Ohm's law generalized for alternating current (AC) circuits using complex numbers. For a single-phase system, the fundamental equation is:

$$V = I \times Z$$

Where $V$ represents voltage, $I$ represents current, and $Z$ represents total complex impedance. When dealing with rectangular impedance components, impedance is evaluated as $Z = R + jX$, where $R$ is resistance and $X$ is net reactance. For three-phase systems, line-to-line voltage multipliers are applied depending on configuration topologies like Star (Wye) or Delta configurations.

How to Use This Calculator

1. Select your target electrical system configuration (Single Phase or Three Phase).
2. Enter the current magnitude in amperes into the designated input field.
3. Choose your impedance input mode (Magnitude & Angle or Rectangular form).
4. Provide numerical values for impedance or resistance and reactance components.
5. Click the calculate voltage button to analyze immediate computation results.

Frequently Asked Questions