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Coordination & Selectivity
Build coordination charts for protection coordination and selectivity studies of relays and fuse links, straight from your phone.
Android
Available on Google Play
Free
Tools category
Features That Make the Difference
Coordination Chart in Your Hand
Plot time-current curves and see the coordination in seconds
Relays and Fuse Links
Overcurrent protection models and fuse links in a single app
Selectivity Studies
Confirm that downstream protection operates before upstream protection
Built for the Field
Runs on the phone of the engineer, technician or electrician on site
Everything for Your Protection Study
- Log-log time-current coordination chart
- Relay setup with IEC curves (EI, MI, NI) and time dial
- Pickup and instantaneous element adjustment in multiples of In
- Standard fuse link curves (10K, 15K, 25K and others)
- Melting and clearing bands plotted on the same chart
- Three-phase and phase-to-ground short-circuit current definition
- Studies organised into reusable projects
- Pinch to zoom on the chart and coordination chart export
Who It's For
Electrical engineers, designers, maintenance technicians and field teams who need to validate protection coordination without opening a computer.
Substations
Phase and ground overcurrent relays
Distribution Networks
Fuse links and reclosers
Industry
Selectivity studies in industrial plants
Take a Look at the App
Projects
Relays
Fuse links
Short circuit
Coordination chart