International Journal of Industrial Electronics and Electrical Engineering(IJIEEE).
Paper Title - Temporaryover-Voltage Analysis During Phase Opening Errors in Distribution Networks with Resonant Grounding
This article analyzes the transient voltages (TOVs) that may occur in phase-opening situations in distribution
networks with resonant earth. The excessive voltages recorded during phase-opening states exceed the excess voltage
associated with existing theories. A precise analytical study of temporary over-voltage is done. The term "form" is obtained
for the neutral voltage packet. The conditions for maximum phase-to-ground overvoltage’s are also expressed. A case study
is presented for phase-opening errors in a 33-kV distribution resonant distribution grid. The dependence of TOVs on the
number of distribution feeders, feeder load, deviation coefficient of resonance, and additional damping coefficient, as well as
the saturation of voltage transformers, have been analyzed. TOV reduction strategies are included. The deviation from the
Paterson Coil Expansion has been compared with the constant coupling of the watt-meter resistivity in parallel with the
Keywords - Phase Opening Errors, Peterson Coils, Resonant Earth Grids, Temporary Over-Voltages.
Author - Mohsen Neissi, Ali Riahi Kashani
Citation - Mohsen Neissi ,
Ali Riahi Kashani ,
Mohsen Neissi, Ali Riahi Kashani " Temporaryover-Voltage Analysis During Phase Opening Errors in Distribution Networks with Resonant Grounding " ,
International Journal of Industrial Electronics and Electrical Engineering (IJIEEE) , Volume-7,Issue-6 ( Jun, 2019 )