Partner CRM
⚡ Engineering Tool
Power Loss Calculator
Quantify resistive losses in cable runs, calculate annual energy waste, and estimate cost impact. Compare different cable sizes to find the optimal balance between capital cost and operating efficiency.
Input Parameters
Must be a positive number
Must be a positive number
8760 = continuous operation
Average load as fraction of peak (0.7 = 70%)
Calculation Results
Enter parameters above and click Calculate
Cable Size vs. Power Loss Comparison
Losses for different cable sizes at current conditions. Highlighted = selected size.
| Size (mm²) | Loss (W) | Loss (%) | Annual (kWh) |
|---|
Assumptions & Notes
Input Summary
Current—
Cable Size—
Conductor—
Length—
Phases—
Engineering Notes
Formula: P = n × I² × R × L, where n = number of current-carrying conductors (2 for 1-phase, 3 for 3-phase).
Increasing cable size by one step typically reduces losses by 30–50%. Consider lifecycle cost when sizing cables for high-load, long-running circuits.