Impulse Analysis tool
This tool was developed to analyse impulse measurements on high voltage towers, specifically for the ZED meter, but it may also be used with other data, as long as the input format is respected (see example data). Be aware of the influence of the settings. The user is advised to investigate which settings are most suitable for the analysis. One advise on the start time is to start after ‘0’ (e.g. at 100ns) to exclude any reflections of the tower and the connections to the shielding wires.
Input data
Advanced
Impedance is computed from the smoothed spectra of current and voltage. Frequency plots show LOESS curves ≤ 1 MHz by default.
Impedance Z(f)
|Z| & ∠Z vs Frequency
Current – details
Current (time)
Current Amplitude (freq)
Current Phase (freq)
Voltage – details
Voltage (time)
Voltage Amplitude (freq)
Voltage Phase (freq)
Intermediate Fourier coefficients (first 200 within f≤1 MHz)
Learn more on tower footing measurements in our module ‘Tower footing resistance and impedance’.