Easergy MiCOM P54x

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Easergy MiCOM P54x MiCOM Px40 Series Protection Relays Schneider-Electric


Line Differential Protection Relays

Easergy MiCOM P54x is designed for high performance overhead line and cable applications, it interfaces readily with the longitudinal (end to end) communications channels and has optional distance backup protection. Models available: MiCOM P541, MiCOM P542, MiCOM P543, MiCOM P544, MiCOM P545, MiCOM P546

Features

Easergy MiCOM P541-P546 series provides high-speed current differential unit protection. The P54x is designed for all overhead line and cable applications, as it interfaces readily with the longitudinal (end to end) communications channel between line terminals. The interface options support direct fibre optic, or multiplexed digital links.

Optimum selectivity is assured, as the scheme measures the currents entering and leaving the protected plant item. Instantaneous tripping results for an internal fault, with stability for any out-of-zone fault. Tripping uses a proven characteristic comparing differential current with through current, for ease of testing. Phase differential elements of this type offer consistent detection of solid and resistive faults, with optimum faulted phase selection, tripping, and indication.

A full range of back-up protection is integrated. This enhances the dependability of the protection, as hot-standby elements (such as distance zones and overcurrent) can be brought into service whenever a signalling channel outage may occur.

Easergy MiCOM P543-P546 devices offer resident subcycle distance protection, to complement the powerful suite of main and backup protection already proven within the family. Full scheme, up to six zone distance protection is adopted from the class-leading Easergy MiCOM P443.

The Easergy MiCOM P54x becomes the standard in all HV, EHV and UHV line protection applications, duplicated where dual redundant main protection is demanded. Set any combination of differential, distance, overcurrent, voltage, frequency check synch and reclosing, depending on the site needs.

One universal relay type instead of two or more discrete models means reduced spares holding, less training, and lower cost.

Breaker control and monitoring application
The Easergy MiCOM P544 & P546 is suitable for the complex installation and feeders controlled by two circuit breakers such as the breaker-and-a-half configurations. While Easergy MiCOM P543 & P545 are suitable for feeders controlled by a single circuit breaker.

Latest communication protocols & Ethernet Redundancy
Fully Equipped with the latest communications protocols (IEC61850 Ed1 & Ed2 available in the same device, selection by setting).
Maximum availability and reliability of Ethernet communications thanks to the implementation of PRP/HSR standard redundancy protocols with an instantaneous recovery time (0 ms) in case of network failure.
Dual IP address allows the device to be connected to 2 independent communication networks (e.g, SCADA system network & Maintenance network)
Universal IRIG-B input (automatically detects modulated or unmodulated signal)

Major enhancement to Cybersecurity
Operational & Cybersecurity, compliant to IEC 62351, helps protect installations with security based on embedded features such as Role Based Access Control (RBAC), Port Hardening, Security Logs and Access Traceability. The IED by default includes RBAC with different users defined and a Security Administrator.

Standard Manufacturers Warranty: 2 years
Extended Warranty: Up to 10 years (product registration required)

Benefits

Easergy MiCOM P541 - P546 Range
  • Highly selective unit protection
  • Extensive health monitoring for the communications channel
  • Integrated back-up elements running hot standby in the event of comms channel outage
Easergy MiCOM P543 - P546 Range
  • High-speed protection of plain and multi-ended circuits, with in-zone transformers or tapped loads
  • Subcycle five zone mho and quadrilateral distance protection
  • Directional earth fault protection (DEF aided schemes for ground fault high sensitivity)
  • Differential current transformer supervision detects any CT or wiring problem that could jeopardize protection integrity
  • Full connectivity to direct fiber and multiplexed channels including SONET/SDH rings
  • Self-healing distance and differential teleprotection messaging
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