Modelling and Analysis of Line-to-Line Short Circuit Fault in 154-Kv High-Voltage Substation

In this study line-to-line short circuit currents that are likely to happen in 154 kV Van (a city at the east of Turkey) Substation are modelled by MATLAB Simulink program with actual parameters. Lines, power transformers, circuit breakers, and loads which are the main components of a substation are modelled under MATLAB/ Simulink. Actual parameters are used for simulation. In case of power transformer modelling calculations are done by taking factory test reports as a base and power transformer block parameter values are found. Load parameter values are taken from electricity meter in the substation. Since 154 kV Van substation is modelled alone, the effect of interconnected system is modelled by an ideal voltage source.