Transient (Time-domain) Earthing & Grounding Grid Calculations | ELEK SafeGrid Tutorial скачать в хорошем качестве

Transient (Time-domain) Earthing & Grounding Grid Calculations | ELEK SafeGrid Tutorial

ELEK SafeGrid Earthing Software can perform calculations in the time domain such as for lightning currents: https://elek.com.au/electrical-softwa... The transient waveform is composed of many different frequency components and SafeGrid uses forward Fourier transforms to decompose the waveform. The different waveforms SafeGrid can deal with include IEC 62305, CIGRE, Heidler, Double-exponential, and Custom. The response of the earthing system to the individual frequencies of the lightning current is then calculated in the frequency domain. The resulting time domain response of the earthing system is obtained by applying the inverse Fourier transform to all of these responses. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:00 - Introduction 0:10 - How to model the lightning (transient) response 0:27 - Setting up the transient calculation 1:09 - 5 different waveform types 2:28 - Building the earth grid model 3:30 - Voltage profiles and grid points 4:45 - Calculating the transient response 5:06 - Maximum grid impedance and Grid Potential Rise 5:20 - Faulted conductor voltage vs time and impedance vs frequency 5:28 - Animated surface and touch voltage plots 5:48 - Grid points transient response (current and voltage) plots 6:05 - Generating the transient report