Abstract
In recent years, China’s economic development level has continuously improved, great achievements have been made in the construction of electric power, the size of the power grid has also been continuously expanded, and higher requirements have been placed on the safety and stability of power systems. Power system protection occupies an important position. The essential. In the context of today’s high-voltage direct current transmission, line construction has gradually increased, and with it came defects in relay protection technology, which have seriously affected the further development of the power system. This article will specifically analyze the strengthening of relay protection technology in HVDC transmission lines, and improve the power system safety level by improving the performance of relay protection devices.
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