R1 R2
Calculate the combined R1 and R2 resistance from a direct measurement and loop impedance.
In electrical and electronic systems, resistance values R1 and R2 are derived from the impedance parameters Ze and Zs. These resistances reflect the actual portion of the impedance in a circuit, obtained through calculations of impedance parameters.
Determining R1 and R2 from Ze and Zs is primarily done to precisely evaluate and model electrical circuits. With these resistance values, engineers can carry out computations and simulations for circuit design, analysis, and troubleshooting, simplifying complex impedance networks.
Applications
- Filter Design
- Amplifier Circuits
- Power Supply Circuits
- Signal Processing Systems
About This Calculator
This online R1 R2 Calculator determines R1 and R2 values from supplied Ze and Zs. Key terms used in this calculator:
| Term | Description |
|---|---|
| R1 | Resistance of the circuit phase conductor |
| R2 | Resistance of the circuit earth conductor |
| Ze | Loop impedance — the external impedance to Earth along the fault current path |
| Zs | Direct measurement — the total impedance of the fault current channel from Earth to Earth |
| R1 + R2 | The measured value, computed using the direct measurement and loop impedance |
Formula
where:
- = Measured Value (Ω)
- = Direct Measurement — Total Impedance (Ω)
- = Loop Impedance — External Impedance to Earth (Ω)
Inputs
Direct impedance measurement in ohms
External loop impedance in ohms