Power Transmitted Using Load Current (1-Phase 2-Wire US) Calculator

Formula Used:

\[ P = \frac{I \times V_m \times \cos(\Phi)}{\sqrt{2}} \]

Power Transmitted (P):

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1. What is Power Transmitted Using Load Current (1-Phase 2-Wire US)?

Power Transmitted Using Load Current (1-Phase 2-Wire US) refers to the amount of electrical power that is transferred through a single-phase two-wire underground AC system, calculated based on the load current, maximum voltage, and phase difference.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P = \frac{I \times V_m \times \cos(\Phi)}{\sqrt{2}} \]

Where:

\( P \) — Power Transmitted (W)
\( I \) — Current Underground AC (A)
\( V_m \) — Maximum Voltage Underground AC (V)
\( \Phi \) — Phase Difference (rad)

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

3. Importance of Power Calculation

Details: Accurate power calculation is essential for designing electrical systems, determining efficiency, sizing components, and ensuring proper power delivery in underground AC transmission systems.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why is the √2 factor used in the formula?
A: The √2 factor converts the maximum voltage to RMS voltage, as power calculations typically use RMS values in AC systems.

Q2: What is the significance of phase difference in power calculation?
A: Phase difference determines the power factor (cosΦ), which indicates how effectively the current is being converted into useful work.

Q3: Can this calculator be used for overhead transmission lines?
A: Yes, the same formula applies to both underground and overhead single-phase 2-wire AC systems.

Q4: What are typical values for phase difference?
A: Phase difference typically ranges from 0 to π/2 radians (0° to 90°), with 0 indicating purely resistive load.

Q5: How does this differ from three-phase power calculation?
A: Three-phase systems use different formulas that account for the three phases and typically include a √3 factor instead of √2.