Návrh nastavení ochran REF615 a RED615 na rozvodnách ŽST
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Vysoká škola báňská - Technická univerzita Ostrava
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The aim of this thesis is to make a proposal setting REF 615 and RED 615 in the protected system. The main part is selective overcurrent protection settings against overload, short circuits and ground connection. Next to familiarize with all the protected system as it is designed and how they are constructed field switchboard. Marginally familiar with sensors that are, used in the system instead of measuring transformers. The task of the proposal is to set the current real time and at every impulse protection in the protected system. When setting must be based on a set of protection already in the parent grid electricity distributor.
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Current, short-circuit current, overload, short-circuit, ground fault, differential, sensor, directional protection, protectio REF 615, protection RED 615, load cable, minimum short circuit current, capacitive fault current, exposure time, impulse, selectivity