Feeder Protection That Thinks Faster Than The Fault.
MiCOM P841 brings fast, flexible feeder protection with dual-breaker control, advanced logic, and rock-solid automation for modern substations.
Feeder Faults Don't Wait.
Your Protection Shouldn't Either.
Old relays miss directional logic and misread breaker health. This leads to slow clears, mis-ops, and long recovery times in mesh or ring systems.
Weak EF sensitivity
Standard relays miss low-level sensitive earth faults, risking fire hazards.
Breaker health unknown
Lack of wear tracking leads to failure during a critical fault event.
No safe reclosing logic
Generic reclosing without synchronism check risks mechanical shaft stress.
Limited scheme control
Rigid relays can't handle the complex interlocking in mesh or ring substations.
Meet MiCOM P841
— Built for feeders that can’t afford hesitation.
P841 delivers comprehensive phase and earth-fault protection with dual-breaker control and mesh-corner intelligence. It performs synchro-checks before every close, acting as the intelligent brain of any critical feeder bay.
Smarter Logic. Safer Switching.
Stronger Reliability.
Every feeder stays visible, protected, and ready for grid transitions.
High-sensitivity earth fault
SEF and REF catch low-level internal faults that traditional protection layers miss.
Breaker intelligence
Native tracking of wear, operating times, broken current, and mechanism health.
Confident reclosing
Single or three-pole AR with skip-shot logic and leader/follower coordination.
Voltage & frequency checks
Safe synchronism and closing logic for maximum stability and grid support.
Automation built-in
Integrated PSL logic for transfer schemes and complex substation workflows.
Flexible feeder protection
Multiple overcurrent stages with directional logic for every network topology.
Engineered For Accurate Protection And Strong Control
Modular hardware. Tough design. Modern comms.
Where P841 Makes Feeders Feel Future-Ready
Built for every layout. Trusted in every critical substation bay.
Distribution Feeders
Selective clearing for urban and industrial distribution bays.
Ring Main Units
Automation and directional logic for loop-connected ring busbars.
Mesh Corner Feeders
Specialized control for complex corner-connected mesh substations.
Breaker-and-a-half
Dual-breaker management for high-availability substation nodes.
Underground Lines
Sensitive ground logic for high-capacitance cable protection.
Transformer Feeders
Integrated REF/SEF logic for transformer-fed radial bays.
Distribution Feeders
Selective clearing for urban and industrial distribution bays.
Ring Main Units
Automation and directional logic for loop-connected ring busbars.
Mesh Corner Feeders
Specialized control for complex corner-connected mesh substations.
Breaker-and-a-half
Dual-breaker management for high-availability substation nodes.
Underground Lines
Sensitive ground logic for high-capacitance cable protection.
Transformer Feeders
Integrated REF/SEF logic for transformer-fed radial bays.
Protection Where Feeders Define
Network Reliability
We map your zones, CTs and isolators for precise P841 logic settings.
Relay Testing, Programming &
Configuration
Technical Bay Assessment
- Breaker-failure logic audit
- Synchronism check calibration
- Redundant comms path verification
Dependable Across
Every Network.
Wherever feeders run, P841 protects.
Utilities
Industrial substations
Infrastructure networks
Generation switchyards
Smart grid retrofits
Complementary Units.
Compatible protection and automation equipment engineered to operate alongside MiCOM P841.
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