Load Flow Study calculates voltage, current, power, power factors throughout the electrical power system particularly during contingency conditions such as a Transmission line, a Transformer. Study results help for appropriate Transformer tap setting, Add or Modify Capacitor Banks to improve Power Factor, Highlight Overload Conditions.
Short Circuit Study determines the magnitude of the fault currents flowing throughout the power system for 3ph, Ph-Ph, double phase-to-ground and Ph-Grnd. Study results help in comparing with short circuit current rating of Circuit Breakers, Switchgear, Cables, Transformers. These results are also used in selecting new electric equipment, Ground Grid Design, Relay Settings, Arc Flash Hazard calculations.
Relay Co-ordination Study ensures selective fault isolation and coordinate the protective devices from load to source to minimize disturbance to the healthy portion of power system. With the help of Time Current Characteristic curves (TCC), generated by ETAP, we adjust time intervals between adjacent relays to make sure that the fault is isolated within the thermal withstand capability of Circuit Breakers, Transformers, Cables. These results are used in Arc Flash Hazard calculations.
Motor Acceleration Study calculates speed, slip, electrical output torque, load current, and terminal voltage data from locked rotor to full load speed. This study helps to select the best method of starting, the proper motor design, or the required system design for minimizing the impact of motor starting on the entire system.
Harmonic Analysis determines the undesirable effect of the harmonic contributions from nonlinear loads on the voltages and currents in the power system in terms of harmonic voltage and current distortions (THD & IHD), Harmonic telephone influence factors (TIF) and identify parallel resonance conditions. Study results help in designing the appropriate filter for different harmonic order.
Arc Flash Study investigates worker’s potential exposure to incident energy, which is required for the purpose of injury prevention and determination of Minimum Personal Protective Equipment (PPE). We generate labels that lists Incident energy levels, Arc flash boundaries and appropriate PPE, that can be fixed on Switchgears, MCC etc
