Protective Device Coordination &
Relay Logic Setting
Intelligent system protection. We isolate faults instantly, preventing cascading failures and maximizing operational uptime through precise relay coordination.
Nuisance Tripping
Poorly coordinated settings cause widespread outages from minor, localized faults, disrupting operations unnecessarily.
Cascading Blackouts
A single un-isolated fault can trigger a domino effect, tripping upstream breakers and taking down the entire facility.
Equipment Destruction
Slow trip times allow massive fault energy to persist, melting switchgear and destroying transformers beyond repair.
Engineering
Methodology
From fault analysis to verified relay logic files.
Setting Deliverables
- Protective Relay Setting Files (SEL, GE, etc.)
- Detailed Time-Current Coordination (TCC) Plots
- Sequence of Operation & Logic Diagrams
- System-Wide Selectivity Verification
- Arc Flash Reduction Setting Options
- Comprehensive Coordination Study Report
Fault Analysis & Data Modeling
We establish a high-fidelity digital twin of your system to calculate minimum and maximum fault currents. This baseline data is critical for determining the necessary sensitivity of every protective device.
TCC Curve Coordination
We plot Time-Current Curves (TCC) for every breaker, fuse, and relay. We adjust curves to ensure clear separation (CTI), guaranteeing that only the device closest to the fault operates.
Relay Logic Development
We engineer complex logic schemes (zone interlocking, differential protection) for modern digital relays to achieve high-speed clearing without sacrificing selectivity.
Setting File Generation
We generate ready-to-upload setting files for major relay platforms (SEL, GE Multilin, ABB), eliminating manual entry errors during commissioning.
Is Your Protection Truly Protective?
Don't rely on factory defaults. Optimize your protection system today.
Get Coordination Quote