Study of transformer network to comply with standards, electrical safety, and avoid failures due to Inrush current

The challenges of energizing a transformer, in an electrical power system, are critical aspects, due to the magnitudes of the currents and the importance of the transformers. These currents cause system instability; current peaks, and transient voltages. The instabilities affect the transformer and the connected equipment. It is crucial to manage power timing to avoid load imbalances and interruptions. Energization planning and execution are essential to ensure transformer integrity and system stability. The objective is to study the process of energizing the network of six transformers, responsible for the energy supply of the National Technological Institute of Mexico IT of Tuxtla Gutierrez, to identify opportunities that guarantee electrical safety, comply with applicable regulations and minimize the adverse effects of inrush currents. A load survey was carried out on the distribution transformers. A one-line diagram was constructed. The behavior of the Electrical Power System was studied. Transient monitoring was carried out in the secondary circuits of the transformers. With these actions, opportunities were identified to mitigate failures, which translate into safety and energy savings.