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Maximum Voltage Underground AC is defined as the peak amplitude of the AC voltage supplied to the line or wire in a 2-Phase 3-Wire US system. It represents the highest voltage value reached during the AC cycle.
The calculator uses the formula:
Where:
Explanation: The formula converts RMS voltage to maximum voltage by multiplying with the square root of 2, which is the standard conversion factor for sinusoidal AC waveforms.
Details: Calculating maximum voltage is crucial for proper insulation design, equipment selection, and safety considerations in electrical systems. It helps determine the peak stress that system components will experience.
Tips: Enter the Root Mean Square Voltage value in volts. The value must be positive and valid for accurate calculation.
Q1: Why is the square root of 2 used in this conversion?
A: The square root of 2 (approximately 1.414) is the conversion factor between RMS and peak values for sinusoidal waveforms, derived from the mathematical relationship between these voltage measurements.
Q2: What is the difference between RMS voltage and maximum voltage?
A: RMS voltage represents the equivalent DC voltage that would deliver the same power, while maximum voltage is the peak value reached during the AC cycle.
Q3: Is this calculation applicable to all AC waveforms?
A: No, this specific formula with √2 factor applies only to pure sinusoidal waveforms. Other waveforms have different conversion factors.
Q4: Why is maximum voltage important in electrical system design?
A: Maximum voltage determines insulation requirements, clearance distances, and the voltage ratings needed for system components to ensure safety and reliability.
Q5: Can this calculator be used for both single-phase and three-phase systems?
A: This specific calculator is designed for 2-Phase 3-Wire US systems, but the RMS to peak voltage conversion principle applies to all sinusoidal AC systems.