Estudiar las corrientes de corto circuito de una línea aérea de 69KV mediante códigos Python y simulaciones en ATP DRAW

Abstract

This study proposes a method for studying the short-circuit current of a 69 kV three-phase overhead transmission line using open-source tools, combined with Python code development and simulation with ATP-Draw software. The research focuses on the use of matrix methods, Carson integrals, and Kron reduction to accurately obtain electrical parameters such as resistance, inductance, and capacitance from the physical, geometric, and electrical characteristics of the line. Based on these parameters, the order matrix and the currents associated with different types of faults (including three-phase, single-phase, and two-phase short circuits) are calculated. Subsequently, a line model is built in ATP-Draw to simulate the same fault scenarios, and the calculation results are compared with those obtained using Python. By comparing both tools, we can verify the reliability of the developed computational model and evaluate its technical consistency. The expected results demonstrate that the use of Python, in conjunction with mature analytical methods, can constitute a viable, accurate, and cost-effective alternative to commercial software, contributing to the analysis of electrical phenomena and deepening the understanding of theoretical foundations. This research contributes to the academic field by promoting the application of open-source tools in the analysis of electrical systems and lays the groundwork for research on the protection and coordination of overhead subtransmission lines.