1. What is RMS Voltage using Load Current?

The RMS (Root Mean Square) Voltage using Load Current calculation determines the effective voltage in a single-phase two-wire mid-point overhead system based on transmitted power, current, and phase difference.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{rms} \) — Root Mean Square Voltage (Volt)
• \( P \) — Power Transmitted (Watt)
• \( I \) — Current Overhead AC (Ampere)
• \( \Phi \) — Phase Difference (Radian)

Explanation: The formula calculates the RMS voltage by dividing the transmitted power by the product of square root of 2, current, and cosine of the phase difference.

3. Importance of RMS Voltage Calculation

Details: Accurate RMS voltage calculation is crucial for power system analysis, equipment sizing, and ensuring proper voltage levels in electrical distribution systems.

4. Using the Calculator

Tips: Enter power in watts, current in amperes, and phase difference in radians. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why use RMS voltage instead of peak voltage?
A: RMS voltage represents the equivalent DC voltage that would deliver the same power to a load, making it more useful for power calculations.

Q2: What is the significance of the phase difference?
A: Phase difference accounts for the power factor in AC systems, which affects the real power delivered to the load.

Q3: When is this calculation typically used?
A: This calculation is used in single-phase two-wire mid-point overhead systems for voltage analysis and system design.

Q4: Are there limitations to this formula?
A: This formula assumes sinusoidal waveforms and may not be accurate for systems with significant harmonics or non-linear loads.

Q5: How does this relate to three-phase systems?
A: Three-phase systems use different formulas that account for the phase relationships between the three conductors.