1. What is Phase to Phase Voltage?

Phase to phase voltage (V_pp) is the voltage measured between any two line conductors in a three-phase system. It's √3 times the phase to neutral voltage (V_pn) in a balanced three-phase system.

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

Explanation: In a balanced three-phase system, the line-to-line voltage is √3 times the line-to-neutral voltage.

3. Importance of Phase to Phase Voltage

Details: Phase to phase voltage is crucial for designing electrical systems, selecting appropriate equipment, and ensuring safety in three-phase power distribution.

4. Using the Calculator

Tips: Enter the phase to neutral voltage in volts. The value must be positive and greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Why is phase to phase voltage √3 times phase to neutral?
A: This relationship comes from the 120° phase difference between the three phases in a balanced system, resulting in a √3 multiplier.

Q2: What are typical phase to phase voltages?
A: Common values include 208V, 380V, 400V, 415V, 480V, etc., depending on the electrical system standard.

Q3: Does this formula work for all three-phase systems?
A: It works for balanced three-phase systems. For unbalanced systems, more complex calculations are needed.

Q4: What's the difference between line voltage and phase voltage?
A: In three-phase systems, line voltage typically refers to phase-to-phase voltage, while phase voltage refers to phase-to-neutral voltage.

Q5: How does this relate to delta and wye configurations?
A: In wye systems, V_pp = √3 × V_pn. In delta systems, V_pp equals the phase voltage as there is no neutral point.