Calculate pickup values, timing curves, coordination time intervals (CTI), and test injection currents for overcurrent (50/51), differential (87), distance (21), and directional (67) protective relays. Essential tool for relay technicians, protection engineers, and. Relay protection is essential to ensure the stability, reliability, and safety of electrical power systems. Effective relay protection depends on. of CT groups fThe selected protection principle affects the operating speed of the protection, which has a significant im-pact on the harm caused by short circuits. Further, the duration of the voltage. Product Specialist (West Region) for Digital Substation Products at ABB Inc. Currently residing in Denver, Colorado. Previous experience in designing low voltage and medium voltage switchgear, relay panels and custom control panels as an Electrical Engineer at ESSMetron, Denver CO. Calculations are performed with a power system modeling software EA-PSM. LOAD FLOWS CALCULATION RESULTS Single bypass generator apparent power is 3,2 MVA. Reactive power that generator can supply at. Vattenkraft är en förnybar energikälla där grundidén är att omvandla energin från de forsande vattenmängderna till elektrisk energi. Fenomenet kallas elektromagnetisk induktion, vilket uppstår i generatorer.