About this document

B5 Protection & Automation PS2 Acceptance, Commissioning, and Field Testing Protection, Automation and Control Systems by Tiago Lopez Villa is a document available to read on EtoBox.

This paper discusses maloperations of distance protection devices in the Finnish transmission grid, specifically highlighting four cases of incorrect relay operations during power system faults. It details the challenges posed by harmonics during faults, the simulation studies conducted to reproduce these maloperations, and the secondary injection tests performed to explore mitigation methods. The findings indicate that high levels of transients and low fault currents contributed to these maloperations, emp

Author

Tiago Lopez Villa

Language

EN