Power Loss Calculator
Calculate electrical power loss using I²R and efficiency formulas. Simple tool with tables, examples, and FAQs for engineers and students.
calculate transformer losses
Wasted electrical energy in a system caused by conductor resistance or low efficiency is power loss. P loss = I 2 times the R of resistive losses or P loss = V times I times (1 -eta) of efficiency losses.
Formula & Table Summary:
- Resistive Loss: P_loss = I² × R
- Efficiency Loss: P_loss = V × I × (1 – η)
- Total Input Power: P_in = V × I
- Output Power: P_out = P_in × η
Converter Table (Input → Output):
| Input | Formula | Output |
|---|---|---|
| Current & Resistance | P_loss = I² × R | Power Loss (W) |
| Voltage, Current & Efficiency | P_loss = V × I × (1 – η) | Power Loss (W) |
| Input Power & Efficiency | P_loss = P_in – P_out | Power Loss (W) |
transmission line loss formula
The power loss calculator is used to estimate electrical energy that is lost in conductors, transformers, or equipment as a consequence of resistance and inefficiency. It is critical in ensuring the development of effective systems, minimizing unutilized energy, and lowering the cost of operation. The loss of power is typically computed by means of such formulas as: P loss = I² × R or P loss = V × I × (1-eta), where I is current, R is resistance, V is voltage, and epsilon is efficiency. This guide gives formulas, converter tables, sample calculations, keywords, and frequently asked questions to make the determination of power losses simple for engineers, electricians, and students.
system efficiency calculator
| Scenario | Input | Calculation | Result |
|---|---|---|---|
| Resistive Loss | I = 20 A, R = 0.5 Ω | P_loss = 20² × 0.5 | 200 W |
| Efficiency Loss | V = 230 V, I = 10 A, η = 0.9 | P_loss = 230 × 10 × (1 – 0.9) | 230 W |
| Transformer Loss | P_in = 1000 W, η = 0.95 | P_loss = 1000 – 950 | 50 W |
