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All the details of substation protection and control system (P&C) such as bus configuration, CTs and PTs, CBs, Switches can be graphically modeled. Not only this is for the sake of graphical representation, but also fault can be applied on any connector between power system primary components. This allows to catch blind spots and deep setting errors in the protection system. To reduce the wiring among relays and instrument transformers, ETAP allows protection relays to be connected remotely to CTs and PTs through a newly enhanced remote connector element.
StarZ simulates and evaluates model-specific protection settings and functions similar to the actual relay. This means that in ETAP, the user configures the same settings and protection element outputs as that of the actual relay. ETAP emulates realistic performance of distance relays considering choice of polarization, dynamic expansion, and many other factors.
ETAP Train Power Simulation - eTraX™ software includes validated, user-friendly and flexible software tools for designing, analyzing and managing AC and DC railway infrastructure. Learn how eTraX integrates with ETAP protection & coordination software (StarZ) to offer insights into line protection, protective relay performance & evaluation, troubleshooting false trips, and system-wide protective device operation.
Many protection functions such as over/under frequency, out-of-step, generator loss of excitation are set based on power system dynamic characteristics. These protection functions were conventionally set with the assumption that, system dynamics are predictable using simplistic and aggregated models. Higher penetration of distributed energy resources (DERs) has made power system dynamics considerably more complex to predict through conventional approaches. ETAP offers a new solution to perform unified protection and transient stability study to accurately capture interactions between system dynamics and protection system. This solution allows protection engineers and network planners to 1- tune protection settings to act properly during system dynamics, 2- design and test remedial protection schemes, 3- evaluate all protection functions such as out-of-step, overcurrent and generator loss of excitation protection function and 4- perform grid code studies that require evaluating DER performance along with its protection system.
Per North American Electric Reliability Corporation (NERC), 28% of protective relay mis-operations are due to incorrect settings and logics. These errors mainly stem from the existing relay testing procedures that do not provide a proper mechanism to easily and effectively evaluate the performance of all settings, logics, and the protection system as a whole. ETAP StarZ™ is a new solution to minimize protective relay setting errors and reduce the time required to perform protection and coordination studies.
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