Conprove presented the technical paper “Ultra-High-Speed Transmission Line Protection Performance in Time Domain Due to Several Contingency Situations,” developed by its team of engineers and researchers. The study investigated the performance of transmission line protection systems based on Traveling Waves (TW), which represent the state of the art in fault detection and localization in electrical power systems.

Context

Currently, protection relays using traveling wave technology have gained prominence in the power sector by offering ultra-rapid response, high precision in fault localization, and greater operational selectivity. However, practical application and testing of this technology remain challenging, as traditional tools—such as lab simulators and test sets—cannot reproduce the full bandwidth required to validate traveling wave-based relays and fault locators.

Advanced simulation approach

The paper explored the combined use of advanced simulation software and hardware, capable of faithfully modeling all components of an electrical system, including transmission lines with variable and frequency-dependent parameters, reproducing secondary-level waveforms reaching the megahertz range.

Testing and results

During testing, an IED (Intelligent Electronic Device) was subjected to various contingency scenarios to evaluate the performance of the traveling wave-based protection function. The results proved the effectiveness of time-domain protection, with fault localization errors limited to the tower span and operating times around 1 millisecond, demonstrating the robustness and precision of the proposed system.

Significance

This work reinforced Conprove’s commitment to technological advancement in electrical system protection, offering tools and methodologies that enable the practical use of cutting-edge technologies, such as traveling wave protection, in modern and digitalized energy systems.

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