Advanced Generator Safeguarding Built to Respond Instantly.
MiCOM P34x protects generators and generator-transformer systems with high-speed differential protection, intelligent backup logic, and accurate synchronism supervision.
In Generation,
One Wrong Second Can Drop The Grid.
Legacy relays struggle with inrush, miss internal faults, and lack synchronism logic. A slowdown becomes an outage. An outage becomes a regional cascade.
Slow internal-fault clearing
Delayed response to winding faults can cause irreparable stator core damage.
Weak synchronism control
Inaccurate check-sync risks mechanical stress during breaker closing operations.
No redundancy options
Lack of PRP/HSR support creates single points of failure in digital links.
Poor breaker supervision
Missing trip-circuit and failure logic risks hardware damage during fault events.
Limited plant visibility
Generic relays lack the recording depth needed for fast post-fault restoration.
Meet MiCOM P34x
— Generator-Grade Protection With Total Control.
Hardened differential protection, synchronism checks and complete scheme logic into one modular platform (P342–P391). Optimised for GT units and complex plant bays, it blends fast 87G detection and deep recording logic for modern substations.
Protection Built Around
How Generators Behave.
From internal faults to synchronism checks — every risk handled.
Instant internal-fault detection
Biased differential 87G logic with inrush and overfluxing restraint.
Multi-layer backup protection
Phase, earth-fault, and sensitive EF with directional and frequency options.
Stability under every condition
Voltage, frequency, and thermal monitoring that reacts before limits break.
Breaker health assurance
Breaker failure, condition supervision, and trip-circuit logic built directly in.
Flexible scheme logic
PSL for interlocking, intertripping and plant-specific sequence mapping.
Smarter synchronism
Advanced native check-sync (25) for safe, seamless breaker closing.
Deep event visibility
Waveforms, SOE, and fault locators for quicker plant-side restoration.
Built For Precision. Proven In Harsh Plant Environments.
Every module meets generator-grade performance standards
Where MiCOM P34x Leads the Plant
Any generator. Any topology. Any critical plant configuration.
Generator Units
Fast 87G differential protection for high-value generating assets.
GT Units
Hardened protection for integrated Generator-Transformer topologies.
Captive Power
Reliable switching and backup for industrial captive power units.
Hydro & Thermal
Optimised logic for hydro, thermal and gas plant configurations.
Intertie Nodes
Synchronism-checked switching for critical substation intertie points.
Complex Bays
Complete scheme logic for complex station and bay automation.
Generator Units
Fast 87G differential protection for high-value generating assets.
GT Units
Hardened protection for integrated Generator-Transformer topologies.
Captive Power
Reliable switching and backup for industrial captive power units.
Hydro & Thermal
Optimised logic for hydro, thermal and gas plant configurations.
Intertie Nodes
Synchronism-checked switching for critical substation intertie points.
Complex Bays
Complete scheme logic for complex station and bay automation.
Generator Protection Fine-Tuned
To Plant Logic
From 87G testing to synchronism settings — we configure P34x the way your generator runs.
Relay Testing, Programming &
Configuration
Technical Plant System Tuning
- Differential sensitivity validation
- Excitation/Sync logic calibration
- Critical breaker-failure logic audits
Engineered For Generation.
Ready For Every Grid.
Perfect for high-value generating assets across power and industry.
Power generation plants
Captive power & industrial utilities
Independent power producers
Grid substations
Renewables with synchronous generators
Critical industrial generation processes
Coordinated Systems.
Compatible protection, control and communication solutions designed to operate alongside MiCOM P34x.
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