Power Transmitted Formula:
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Power Transmitted using K in a Two-Wire One Conductor Earthed system represents the amount of electrical power that can be efficiently transmitted through an overhead DC line, accounting for various system parameters and losses.
The calculator uses the formula:
Where:
Explanation: This formula calculates the maximum power that can be transmitted through a two-wire DC system with one conductor earthed, considering line losses, voltage levels, material resistivity, and conductor length.
Details: Accurate power transmission calculation is crucial for designing efficient electrical distribution systems, minimizing energy losses, optimizing conductor sizing, and ensuring reliable power delivery to consumers.
Tips: Enter all required parameters with appropriate units. Ensure all values are positive and within reasonable physical limits for accurate results.
Q1: What does the constant K represent?
A: The constant K represents specific system characteristics and is typically derived from the line configuration and operating conditions of the overhead DC system.
Q2: How do line losses affect power transmission?
A: Line losses represent energy dissipated as heat in the conductors. Higher losses reduce the efficiency of power transmission and the amount of usable power delivered to the load.
Q3: Why is resistivity important in power transmission?
A: Resistivity determines how much a material resists electrical current flow. Lower resistivity materials (like copper) allow more efficient power transmission with reduced losses.
Q4: How does conductor length impact power transmission?
A: Longer conductors have higher resistance, leading to increased voltage drop and power losses, which reduces the amount of power that can be effectively transmitted.
Q5: What are typical values for maximum voltage in overhead DC systems?
A: Maximum voltage values vary by system design but typically range from hundreds to thousands of volts, depending on the application and transmission distance requirements.