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Constant Underground AC Formula:
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Constant Underground AC is defined as the constant of line of an Overhead supply system. It represents a calculated value used in electrical engineering to determine system characteristics based on conductor material volume and phase difference.
The calculator uses the formula:
Where:
Explanation: The formula calculates the system constant by considering the volume of conductor material and the squared cosine of the phase difference, divided by the constant factor 2.5.
Details: Accurate calculation of the constant is crucial for designing and analyzing overhead supply systems, ensuring proper system performance and efficiency in electrical power distribution.
Tips: Enter volume of conductor in cubic meters and phase difference in radians. All values must be valid (volume > 0, phase difference ≥ 0).
Q1: What is the significance of the 2.5 constant in the formula?
A: The 2.5 constant is a scaling factor derived from system design parameters and material properties used in overhead supply systems.
Q2: Why is the cosine squared term used in the formula?
A: The squared cosine term accounts for the power factor effect in AC systems, representing the relationship between real power and apparent power.
Q3: What are typical values for Constant Underground AC?
A: Typical values vary depending on system design and conductor materials, but generally range from single digits to hundreds depending on the application.
Q4: Can this formula be used for DC systems?
A: No, this formula is specifically designed for AC systems where phase difference and power factor considerations are relevant.
Q5: How does conductor volume affect the constant value?
A: Larger conductor volumes typically result in higher constant values, as more conductor material affects the system's electrical characteristics.