1. What is the Voltage Drop Equation?

The voltage drop equation calculates the voltage loss in parallel feeders for fish systems. It accounts for the length of the run, current, number of parallel feeders, and conductor resistance to determine the voltage drop in the circuit.

2. How Does the Calculator Work?

The calculator uses the voltage drop equation:

Where:

• \( VD \) — Voltage drop (volts)
• \( L \) — Length of the run (feet)
• \( I \) — Current (amperes)
• \( n \) — Number of parallel feeders (dimensionless)
• \( R \) — Resistance (ohms per 1000 feet)

Explanation: The equation accounts for the round-trip distance (hence the 2× factor), divides by the number of parallel paths, and converts the resistance to per-foot basis.

3. Importance of Voltage Drop Calculation

Details: Proper voltage drop calculation is crucial for designing efficient electrical systems for fish facilities, ensuring equipment receives adequate voltage and preventing energy waste.

4. Using the Calculator

Tips: Enter length in feet, current in amperes, number of feeders, and conductor resistance. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is an acceptable voltage drop?
A: Typically 3% or less for feeders, though specific requirements may vary based on application and local codes.

Q2: Why use parallel feeders?
A: Parallel feeders reduce voltage drop and allow for higher current capacity while using smaller conductors.

Q3: How do I find conductor resistance values?
A: Resistance values are typically provided in conductor specifications or NEC tables.

Q4: Does temperature affect the calculation?
A: Yes, conductor resistance changes with temperature. Use resistance values appropriate for your operating temperature.

Q5: Can this be used for DC systems?
A: Yes, this calculation works for both AC and DC systems when using appropriate resistance values.