Protection That Sees Both Ends.
MiCOM P53x delivers precise, high-speed line differential protection for cables, overhead lines, and critical feeders.
Faults are blind
to single-end protection.
Capacitive charging currents and delayed coordination travel fast across wide networks. Without dual-end intelligence, systems remain vulnerable.
Slow fault clearing
Delayed coordination allows mistakes to travel fast across wide networks.
Unstable long-line protection
Capacitive charging currents in long cables trigger nuisance relay trips.
No dual-end visibility
Protection is blind to the far end of the circuit, risking internal fault misses.
Mis-coordinated trips
Inaccurate settings cause cascading failures and unnecessary wide-area outages.
Meet MiCOM P53x
Differential Protection Done Right.
MiCOM P53x is a modular line differential relay built for precise, high-speed protection of cables, overhead lines, transformers, and substation feeders. Blends protection + control + monitoring in one compact device.
Engineered For
Absolute Uptime.
Programmable logic and multi-protocol communication in one compact system.
True dual-end intelligence
Comparative differential logic detects internal line faults with absolute precision.
Overcurrent + earth fault
Layered backup protection for every fault type built into a single device.
Auto-reclose restores fast
Intelligently handles transient faults without requiring manual resets.
Switchgear control inside
Operate breakers, isolators, and disconnectors directly from the relay HMI.
Black box event recording
Precise waveforms and SOE logs for deep post-fault forensics.
Tough hardware
Industrial-grade resilience running from –25°C up to +70°C ambient.
Clinical Accuracy.
High-speed sensing with industrial endurance
Where P53x Sets the Standard
Precision line differential logic for overhead lines and distribution hubs.
Secondary transmission
High-speed isolation for urban distribution interconnections.
Industrial Feeders
High-load motor and feeder protection for heavy process plants.
Hazardous Sites
Reliable switching in chemical and safety-critical environments.
Rail Electrification
Electrified power backbones for mission-critical transport uptime.
Smart Grid Hubs
IEC 61850 automation for digital substation architectures.
Wide-Area Reliability
Redundant Ethernet and SNTP time sync for total coordination.
Secondary transmission
High-speed isolation for urban distribution interconnections.
Industrial Feeders
High-load motor and feeder protection for heavy process plants.
Hazardous Sites
Reliable switching in chemical and safety-critical environments.
Rail Electrification
Electrified power backbones for mission-critical transport uptime.
Smart Grid Hubs
IEC 61850 automation for digital substation architectures.
Wide-Area Reliability
Redundant Ethernet and SNTP time sync for total coordination.
Line Protection Tuned To
Your Network
Tailored assessment for high-speed differential control
Relay Testing &
Configuration
Technical Testing
- Line Stability Verification
- Logic Logic Tuning
- Remote-end Sync Validation
Built For Power Reliability
Trusted utility & industrial deployment
Utilities & Smart Grids
Industrial Distribution
Oil, Gas & Chemical
Infrastructure Electrification
Complementary Differential.
Selective fault isolation for coordinated network performance.
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