MiCOM Agile P54A, P54B, P54C & P54E Protection Relays

Product Description

MiCOM Agile P54A, P54B, P54C & P54E  

Multi-ended Line Differential Protection Systems

The MiCOM P54A/B/C/E range is designed for overhead line and cable applications up to 6 terminals, interfacing readily with the longitudinal(end-to-end) communications channel between line terminals. Previously,transmission and distribution circuits would have two or three ends only,whereas five or more ends are becoming common to connect renewable generation.All models are ready for protection to pologies ranging from two to sixterminals, whether those multi-terminals exist now, or are provisioned for connection in the future.

Multi-ended current differential protection uses ahigh-speed and innovative biased differential characteristic. Phase-segregated differential elements provide consistent detection of solid and resistive faults.

Key features:

• Current differential protection for up to 6 line or cable ends, maximising connection of renewable generation, reducing greenhouse gas emissions
• Subcycle tripping time up to 4-ended topology (<1.25 cycle for 5 or 6 ends)
• Highly selective and sensitive unit protection, with capacitive current compensation for long lines or cables
• Ability to locally take any end off-line for maintenance
• Full support of SONET/SDH channel switching
• Suitable for direct fibre and multiplexed (IEEE C37.94) networks, including MPLS systems
• Full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism