ABB SPAD 346 C2 Stabilized Transformer Differential Protection Relay
Product Overview ABB SPAD 346 C2 is a legacy SPACOM‑family stabilized differential protection relay dedicated for two‑winding power transformers and generator‑transformer sets. It provides main differential protection for internal winding short‑circuits, inter‑turn faults and earth faults, together with multi‑stage overcurrent and earth‑fault backup protection. Second‑harmonic restraint prevents false tripping during transformer magnetizing inrush; fifth‑harmonic restraint…


