This work deals with the coordination of distance protection in the transmission network. The introductory chapters describe the power system with an emphasis on the 110 kV transmission network. Along with a description of the network elements and secondary equipment, a description of measuring transformers, which are important for the operation of distance protection, is provided. The fourth chapter provides a detailed description of distance protection and distance relays, including the historical development of distance relays, components of distance relays, activation of distance relays, and their characteristics. After describing the technical characteristics of distance relays, the operational influences on the performance of distance relays are also mentioned. The fifth chapter describes the protection zones of distance protection and their time delays. The sixth chapter provides insight into the setting of distance protection using the example of a radially fed 110 kV network, for which a three-phase and two-phase short-circuit calculation was previously performed in the NEPLAN software package.