3-phase systems and 1-phase
Calculation of touch voltage and ground current can be performed on single phase or three-phase systems.
According to the inputs for three-phase system: Line-to-Neutral Volts (Vn), Line 1 Calculated Load (A1), Line 2 Calculated Load (A2), Line 3 Calculated Load (A3), Service Neutral Impedance Z1, and Ground Resistance (3-point method) R, spreadsheet will calculate the following parameters:
- Resistance of Each Phase
- Resistance of neutral/Ground
- Neutral Current and Load
- Touch Voltage for Metal part to Earth
- Body Resistance and Body Current
For single-phase systems input parameters are: Circuit voltage and ampere, load, ground, electrode and body resistance.
|Software:||Calculation of Touch Voltage and Ground Current|
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