Category Protection Relays

The S-PRO sub-harmonic protection relay protects various power system equipment including generators, wind turbines, PV system, series compensated transmission lines, FACTS devices and power transformers from uncontrollable sub-synchronous oscillation conditions known as:sub-synchronous torsional interaction (SSTI)sub-synchronous control interaction (SSCI)sub-harmonic resonance (SSR)sub-harmonic…