Device Manager

Schweitzer-style feeder relay. Full feeder function set — 50/51 + 50N/51N overcurrent, 67/67N directional supervision, 27/59 voltage, 81 O/U frequency, 46 unbalance, 49 thermal, 50BF breaker failure and 79 reclosing — programmed in secondary amps with SEL word-bit codes and the classic ASCII terminal (ACC, MET, TAR, SHO, EVE, SET).

Schweitzer-style transformer differential relay: 87 percentage-restrained differential (local + remote CT per phase) with slope characteristic, backed up by 50/51 + 50N/51N overcurrent, 46 unbalance, 49 thermal replica, 27/59/81 and 50BF — the protection package of a real transformer bay.

ABB Relion-style IED. Protection functions named per IEC 61850 logical nodes — PHLPTOC/PHIPTOC overcurrent, DPHLPDOC/DEFLPDEF directional (67/67N), PHPTUV/PHPTOV voltage (27/59), FRPFRQ frequency (81), NSPTOC (46), T1PTTR thermal (49), CCBRBRF breaker failure and DARREC auto-reclosing — start values in ×In, PCM600-style parameter tree and Relion LHMI.

SIPROTEC 5-style device. DIGSI 5 parameter addresses (_:2311:3 …) across the full 7SJ function chart: I>/I>> stages, 67/67N direction supervision, 27/59 voltage, 81 frequency stages f</f>, 46 negative sequence, 49 thermal, 50BF breaker failure and 79 automatic reclosing. Thresholds in primary amps, RUN/ERROR diagnostics and a 16-LED column.

The neutral, vendor-free reference implementation with every function unlocked — 50/51, 67, 27/59, 81, 46, 49, 50BF, 79 and even 87 differential — in plain engineering names and primary amps. Ideal for first labs before switching to manufacturer vocabularies.