For citations:

Kubkina O.V. Assessment of the extension of functional diagnostics zoines of relay protection of 25 kV traction network. Vestnik Rostovskogo gosudarstvennogo universiteta putej soobŝeniâ. 2025;(1):151-158. (In Russ.) https://doi.org/10.46973/0201-727X_2025_1_151