Functionality - Arc protection - Motor protection - Feeder protection - Back-up protection - Technical Manual - REX610 Protection and control - Relion Protection and Control - 1.2 - IEC - ANSI - 03.05.2023

REX610 Technical Manual

The sequence voltage measurement function VSMSQI provides limit value supervision outputs (U2_HIGH_AL, U2_HIGH_WARN, U1_HIGH_AL, U1_HIGH_WARN, U1_LOW_WRN, U1_LOW_AL, U0_HIGH_AL, U0_HIGH_WARN). Setting parameters Ps Seq V on delay time, Ps Seq V off delay time, Ng Seq V on delay time, Ng Seq V off delay time, Zro Seq V on delay time, and Zro Seq V off delay time are used for controlling the activation and the deactivation of alarm and warning outputs.

Instantaneous sequence voltages are available in monitoring data through U2_INST, U1_INST and U0_INST.