1. What is Power Transmitted Per Phase?

Power Transmitted per Phase is defined as the power delivered to a single phase in a poly-phase electrical network. In a 3-phase 3-wire US system, the total power is equally distributed among the three phases.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_t \) — Power Transmitted per Phase (Watt)
• \( P \) — Total Power Transmitted (Watt)

Explanation: This formula divides the total power by 3 to calculate the power per phase in a balanced 3-phase system.

3. Importance of Power Calculation

Details: Accurate power calculation per phase is crucial for designing electrical systems, determining load distribution, and ensuring proper equipment sizing in 3-phase networks.

4. Using the Calculator

Tips: Enter the total power transmitted in watts. The value must be valid (power > 0).

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 3 for power per phase?
A: In a balanced 3-phase system, the total power is equally distributed among the three phases, making division by 3 appropriate.

Q2: Is this formula applicable to all 3-phase systems?
A: This formula specifically applies to balanced 3-phase 3-wire systems where power is equally distributed.

Q3: What are typical power values in 3-phase systems?
A: Power values can range from a few kilowatts in residential applications to megawatts in industrial settings.

Q4: Are there limitations to this calculation?
A: This calculation assumes a perfectly balanced system. In unbalanced systems, power distribution may vary between phases.

Q5: How does this relate to current and voltage calculations?
A: Power per phase can be used with phase voltage and current (P_t = V_phase × I_phase × cosφ) for further electrical analysis.