Calculate harmonik thd, rms akım and k faktörlü trafo loadü using engineering units and the defined formula.
Harmonic THD, RMS Current and K-Factor Transformer Load Calculator
Calculate harmonic thd, rms current and k-factor transformer load calculator using engineering units and the defined formula.
Result chart
Formula and calculation steps
Note: Results are for preliminary engineering evaluation. Verify assumptions, material data, safety factors, applicable standards, and manufacturer limits before final design. Tool version 2.7.1
How to use this calculator
- Enter the measurements and operating values.
- Select the correct engineering unit for each value.
- Press Calculate to view the result and intermediate values.
- Review the equation steps and download a PDF report if needed.
Equation used
THDi=√ΣIh²/I1; K=Σh²(Ih/Irms)²
How to evaluate the result
Results are for preliminary engineering evaluation. Verify assumptions, material data, safety factors, applicable standards, and manufacturer limits before final design.
Technical references
Input guide for Harmonic THD, RMS Current and K-Factor Transformer Load Calculator
Calculate harmonic thd, rms current and k-factor transformer load calculator using engineering units and the defined formula. The table below summarises the inputs and example starting values.
| Parameter | Example value | Units and description |
|---|---|---|
| Foundation akım I1 | 100 | A |
| 3. harmonik | 35 | A |
| 5. harmonik | 20 | A |
| 7. harmonik | 14 | A |
| 11. harmonik | 8 | A |
| 13. harmonik | 5 | A |
| Trafo nominal akımı | 160 | A |
Example calculation scenario
For an initial check, enter the example values from the table, select the required units, and choose Calculate. Review the main result and equation, then replace the examples with measured or design data from your system.
Common mistakes when using Harmonic THD, RMS Current and K-Factor Transformer Load Calculator
- Ignoring transmission efficiency, service factor, or transient operating conditions.
- Mixing unit systems without checking the selected units.
- Using example values instead of measured or design data from the actual system.
- Accepting the result without checking safety factors, duty cycle, and manufacturer limits.
Fundamental equation: THDi=√ΣIh²/I1; K=Σh²(Ih/Irms)²
Frequently asked questions
What is Harmonic THD, RMS Current and K-Factor Transformer Load Calculator used for?
Calculate harmonic thd, rms current and k-factor transformer load calculator using engineering units and the defined formula. Use it for preliminary engineering sizing and independent result checks.
Which equation does this calculator use?
The calculation is based on THDi=√ΣIh²/I1; K=Σh²(Ih/Irms)². Inputs are converted according to the selected units.
Can the result be used as a final design value?
Results are for preliminary engineering evaluation. Verify assumptions, material data, safety factors, applicable standards, and manufacturer limits before final design. Confirm the result against the current standard, project specification, and manufacturer data.
