Feeder protection that reacts before trouble shows
MiCOM P14x delivers fast, flexible overcurrent and earth-fault protection for overhead lines and cables — built for every grounding system, every voltage class, and every feeder scheme.
Explore MoreOn feeders, hesitation costs more than faults
Aging relays miss direction, struggle with compensated networks, mis-handle cold load pickup and can’t keep up with today’s mixed overhead–underground grids. The result? Mis-coordination, wrong-way trips and expensive interruptions across the network.
Meet MiCOM P14x — feeder control done right.
The MiCOM P14x family (P141–P145) is a powerful feeder protection platform for MV and HV lines. It brings multi-stage, fully directional phase and earth-fault protection, high-sensitivity SEF, REF capability, negative-sequence elements and an extensive voltage/frequency suite. With flexible I/O, advanced logic, deep recording and optional bay control in P145, the P14x adapts to every feeder type, grounding practice and grid condition.
Protection that follows every contour of your feeder
Direction, sensitivity and stability — engineered for complex line behaviour.
Six-stage phase protection
Directional or non-directional. IDMT or definite-time. Fully shapeable for any grading plan.
Three-layer earth-fault logic
Derived, measured and SEF — each with four stages for precision on every network type.
Voltage-dependent awareness
Voltage-controlled and voltage-restrained overcurrent boosts reach on distant faults, safely.
REF for internal sensitivity
High- or low-impedance REF detects hidden earth faults missed by standard EF.
Negative-sequence intelligence
Detects unbalanced faults fast, even before current rises fully.
Thermal and overload security
Cable, transformer and conductor protection with realistic thermal models.
Smarter feeder behaviour
Cold load pickup, blocked OC logic and selective OC logic for accurate switching.
Built for speed. Tuned for selectivity
Multi-stage logic, modular hardware and deep diagnostics.
Where MiCOM P14x makes the difference
Flexible enough for every feeder — overhead, underground or hybrid.
Purpose-built for feeders. Trusted across grids
The P14x fits anywhere lines need accurate direction and fast clearing.
Utilities & DISCOMs
Feeder protection, engineered to perform
We configure, test, integrate and retrofit every P14x to match your protection philosophy.
Services
Relay Testing, Programming & Configuration
Integrated systems for complete feeder protection
Compatible protection, control, and communication solutions designed to work alongside MiCOM P14x, enabling coordinated protection, seamless automation, and reliable feeder management across utility and industrial networks.
Upgrade your feeder reliability
Talk to our protection experts to modernise or configure your network with MiCOM P14x.
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