Online relay coordination study tool for TCC curves, overcurrent and earth fault settings, transformer and fuse coordination, selectivity checks and reports. Visualize Time-Current Characteristic (TCC) curves on a log-log plot with IEC 60255 IDMT curves (SI, VI, EI, LTI), real-time CTI verification, fault sweep animation, and automatic TMS optimization. Supports LV to transmission voltage levels with 5 professional presets and exportable coordination. Time-current curves (TCCs) graphically depict the interrupting time curve of a protective device based on the available fault current on a log-log-based graph. is industry-standard power system analysis software used for relay coordination studies.
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