1. What is Phase to Phase Voltage?

Phase to phase voltage (V_pp) is the voltage measured between any two phases in a three-phase electrical system. It is related to the phase to neutral voltage (V_pn) by the square root of 3 (approximately 1.732).

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{pp} \) — Phase to phase voltage (volts)
• \( V_{pn} \) — Phase to neutral voltage (volts)
• \( \sqrt{3} \) — Approximately 1.732 (mathematical constant)

Explanation: This formula converts phase to neutral voltage to phase to phase voltage in a balanced three-phase system.

3. Importance of Phase to Phase Voltage Calculation

Details: Accurate calculation of phase to phase voltage is essential for proper equipment sizing, circuit protection design, and ensuring electrical system safety in three-phase power systems.

4. Using the Calculator

Tips: Enter the phase to neutral voltage in volts. The value must be valid (greater than 0).

5. Frequently Asked Questions (FAQ)

Q1: When is this calculation applicable?
A: This calculation applies to balanced three-phase systems where the phase to neutral voltage is known.

Q2: What is the typical phase to phase voltage in residential systems?
A: In many regions, residential systems use 120V phase to neutral, which corresponds to approximately 208V phase to phase.

Q3: Why is the square root of 3 used in this calculation?
A: The square root of 3 factor comes from the trigonometric relationship between phase and line quantities in a balanced three-phase system.

Q4: Does this formula work for both wye and delta systems?
A: This formula specifically applies to wye-connected systems where phase to neutral voltage is defined.

Q5: What are common applications of this calculation?
A: This calculation is used in electrical engineering, power distribution design, motor control, and electrical equipment specification.