Home
Back
Formula Used:
| From: | To: |
The phase difference calculation determines the angle between voltage and current in a 3-phase 4-wire AC system using the volume of conductor material and system constant. This helps in understanding power factor characteristics of the system.
The calculator uses the formula:
Where:
Explanation: The formula calculates the inverse cosine of the square root of the ratio between 1.75 times the system constant and the conductor volume.
Details: Accurate phase difference calculation is crucial for power factor correction, system efficiency optimization, and proper sizing of electrical components in 3-phase systems.
Tips: Enter the constant underground AC value and volume of conductor in cubic meters. Both values must be positive numbers for valid calculation.
Q1: What is the physical significance of phase difference?
A: Phase difference represents the angular displacement between voltage and current waveforms, directly affecting the power factor of the system.
Q2: Why is conductor volume important in this calculation?
A: Conductor volume affects the system's impedance characteristics, which in turn influence the phase relationship between voltage and current.
Q3: What range of values is valid for this calculation?
A: The expression inside the square root must be between 0 and 1, as the cosine inverse function is only defined for values in this range.
Q4: How accurate is this calculation method?
A: This provides a theoretical calculation based on system parameters. Actual field measurements may vary due to environmental factors and system conditions.
Q5: Can this calculator be used for other system configurations?
A: This specific formula is designed for 3-phase 4-wire US systems. Other system configurations may require different calculation methods.