1. What is Transmitted Power using Load Current?

Transmitted Power using Load Current in a 3-Phase 3-Wire Overhead System refers to the actual power delivered through the transmission line, calculated based on the current, maximum voltage, and phase difference between them.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Power Transmitted (Watt)
• \( I \) — Current Overhead AC (Ampere)
• \( V_m \) — Maximum Voltage Overhead AC (Volt)
• \( \Phi \) — Phase Difference (Radian)

Explanation: This formula calculates the real power transmitted in a 3-phase 3-wire overhead system, accounting for the phase difference between current and voltage.

3. Importance of Power Transmission Calculation

Details: Accurate power transmission calculation is essential for system design, efficiency analysis, load management, and ensuring optimal operation of electrical power systems.

4. Using the Calculator

Tips: Enter current in amperes, maximum voltage in volts, and phase difference in radians. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why is the square root of 2 in the denominator?
A: The √2 factor converts the maximum voltage to RMS voltage, which is used in power calculations for AC systems.

Q2: What is the significance of phase difference in power calculation?
A: Phase difference (power factor) determines the ratio of real power to apparent power in an AC circuit.

Q3: How does this differ from single-phase power calculation?
A: Three-phase systems use different formulas that account for the phase relationships between the three conductors.

Q4: What are typical values for phase difference in power systems?
A: Phase difference typically ranges from 0 to π/2 radians (0° to 90°), with lower values indicating better power factor.

Q5: Can this calculator be used for underground cable systems?
A: While the basic formula is similar, underground systems may have different characteristics that require additional considerations.