Abstract
The article examines the parameters of remote protections with a time delay dependent on the resistance of the short-circuit loop for distribution lines with redundancy and sources of distributed generation (DRG), taking into account the peculiarities of the parameters of these lines and their modes of operation and operating conditions. Obtained characteristics of protection devices, which are recommended when setting up remote protection of such lines with a voltage of 6...20 kV. The advantages of using a remote protection connection scheme for interphase voltages and phase current differences, as well as the use of separate protection against double earth faults, and in their absence - connection schemes for line voltages and phase currents, are justified. The reliability of the remote protection of full resistance should be evaluated by the value of the maximum length of the arc, which is determined at a given coefficient of sensitivity of the remote protection by the voltage drop at the place of installation of the protection in the event of a short circuit.
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