Mathematical Analysis of Voltage Dip propagation in CIGRE Low Voltage Distribution Test Network

Whenever a fault occurs at any stage of the power system, the magnitude of voltage and phase angle both are changed. In the distribution system, there are sensitive loads such as digital computers; motor drives, etc are connected with a system. Due to fault conditions, unbalancing in voltage may occur. So it may cause of damage to equipment. Fault in the distribution system may lead to a voltage dip in the system; it is the big problem of power quality. So it more important to understand the power quality and it is also important to analyze voltage dip propagation when different types of faults occur in the system. This research paper summarizes the results from a number of different voltage dips investigations and their verification of mathematical calculations. These investigations involve characterizing the voltage dips performance. KeywordsPower quality (PQ), Unsymmetrical fault, Symmetrical faults, Voltage dip propagation. Date Received 13-09-2020 Date Accepted 16-10-2020 Date Published 18-12-2020