Introduction

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Relay provides complete protection for radial and looped distribution circuits. It offers arc-flash mitigation, fault location, high-impedance fault detection, broken conductor detection, event analysis, and more. You can quickly integrate the relay into serial- or Ethernet-based communications with IEC 61850 Edition 2, IEC 60870-5-103, the IEC 62439 Parallel Redundancy Protocol (PRP), Ethernet/IP, the IEEE 1588 Precision Time Protocol (PTP), Modbus, DNP3, and other protocols. It Maximizes control scheme flexibility using time- and instantaneous-overcurrent, overvoltage, under-voltage, directional power, and frequency elements, with breaker failure protection for one three-pole breaker. Second- and fifth-harmonic blocking improves protection security during magnetizing inrush conditions caused by line re-energization, or by voltage recovery after any out-of-zone fault.