ABB Protective Relays and Switches Single Line Diagram

This document is a typical single line diagram and wiring arrangement for ABB protective relays and switches, detailing the interconnection of multiple breakers (52(1), 52(2), 52(3)), protective functions (e.g., 50BF, 86/94, 87T, 51P, 50P, 51N, 46, 49T, 67/51P, 59G, 81LSH), and binary I/O for trip, close, and status signals. It includes relay order codes, FT-1 switch arrangements, terminal strip assignments, and notes on parameter settings for phase and ground protection schemes.