Multi-Winding Precision. Absolute Grid Security.
A high-performance differential platform designed for multi-winding transformers, motors, and complex automation-heavy substation bays.
When protection drifts,
transformers pay the price.
Legacy relays miss CT issues and mis-handle inrush. Unstable differential logic leads to false trips and missed faults across critical substation bays.
No multi-winding logic
Generic relays fail to coordinate between 2-winding and 3-winding transformer stages.
Weak inrush restraint
Standard logic triggers false trips during transformer energization and surges.
Unstable REF security
Poor restricted earth fault sensitivity leads to internal fault misses in the grid.
Slow overload response
Delayed thermal modeling causes permanent winding insulation damage.
Meet MiCOM P63x
Coordinated Grid Protection.
Bringing accurate multi-winding differential and restricted earth fault protection to the digital substation. Engineered with triple-slope characteristics for real intelligence.

Real
Intelligence.
Triple-slope differential logic reacts instantly to high-magnitude faults while maintaining absolute security during inrush.
High-sensitivity REF
Three independent REF elements catch internal earth faults others miss.
Thermal protection
Dual thermal models with PT100 support prevent permanent overload damage.
Fast differential logic
Triple-slope characteristic reacts instantly to high-magnitude internal faults.
Overfluxing defence
V/Hz monitoring guards windings during energisation or grid surges.
Designed For Multi-Winding Accuracy
Modular build. High-end protection. Modern comms.

Where MiCOM P63x Sets the Absolute Standard
Precision differential logic for transformers, motors, and high-range bays.
Multi-Winding Transformers
Coordinated protection for 2-winding, 3-winding, and auto-transformers.
Generator Units
Generator differential and high-sensitivity SEF logic for plant security.
Capacitor Banks
Unbalance detection logic designed for high-density industrial stages.
Industrial switchboards
Rugged integration hub for automation-heavy substation bays.
Large Motor Drives
Advanced thermal and mechanical supervision for critical motor windings.
Harsh Environments
Stable operation in sites with high heat, dust, and constant vibration.
Multi-Winding Transformers
Coordinated protection for 2-winding, 3-winding, and auto-transformers.
Generator Units
Generator differential and high-sensitivity SEF logic for plant security.
Capacitor Banks
Unbalance detection logic designed for high-density industrial stages.
Industrial switchboards
Rugged integration hub for automation-heavy substation bays.
Large Motor Drives
Advanced thermal and mechanical supervision for critical motor windings.
Harsh Environments
Stable operation in sites with high heat, dust, and constant vibration.
Built For Power Reliability
Trusted across utility and industrial sectors
Utilities
Oil & Gas
Mining & Metals
Data Centers
Protection Engineering
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