Gilmar F. Krefta [email protected] Carlos E. F. Pimentel [email protected] Lucas B. de Oliveira [email protected] Sergio L. Zimath [email protected] Fault analysis in power systems is an important practice to identify latent issues, validate engineering design and premises and guarantee grid stability. Nonetheless, with the increasing complexity of the system due to the increasing interconnections, inclusion of Distributed Energy Resources (DER) and variable loads, this is not always an easy task. In this paper, we describe practical fault analysis examples from Companhia Paranaense de Energia (COPEL) using several monitoring technologies, such as Digital Fault Recorders (DFR), Phasor Measurement (PMU) and Traveling-Wave Fault Locator (TWFL) for optimal diagnose, highlighting the benefits of having multiple analytical resources available to the operators and power system engineers.
Gilmar F. Krefta [email protected] Carlos E. F. Pimentel [email protected] Lucas B. de Oliveira [email protected] Sergio L. Zimath [email protected] Fault analysis in power systems is an important practice to identify latent issues, validate engineering design and premises and guarantee grid stability. Nonetheless, with the increasing complexity of the system due to the increasing interconnections, inclusion of Distributed Energy Resources (DER) and variable loads, this is not always an easy task. In this paper, we describe practical fault analysis examples from Companhia Paranaense de Energia (COPEL) using several monitoring technologies, such as Digital Fault Recorders (DFR), Phasor Measurement (PMU) and Traveling-Wave Fault Locator (TWFL) for optimal diagnose, highlighting the benefits of having multiple analytical resources available to the operators and power system engineers.