DropaCOMTRADEfile.Getinteractivewaveforms,phasordiagrams,symmetricalcomponents,harmonics,impedance,and10+computedsignals.Worklocallyorsavetothecloud.Allfree.
Three Steps
From raw COMTRADE data to a full fault report — no installs, no hassle.
Drag and drop .cfg + .dat or .cff files. Parsing is instant — everything runs client-side.
Interactive waveforms, phasor diagrams, harmonics, impedance plots, symmetrical components — all in one view.
Symmetrical components, impedance, power, harmonics, differential — computed locally and displayed in interactive tabs.
Features
Every tool you need — none of the bloat.
Analog & digital channels with zoom, cursors, and RMS overlay. Interactive Plotly.js charts with full pan and zoom. Annotations, computed signals, and multiple subplot layouts.
Visualize voltage and current phasors, symmetrical components, and impedance trajectories. Distance protection relay characteristics with Mho and Quad overlays.
Derive symmetrical components, impedance (R-X-Z), active and reactive power, differential and restraint currents, superimposed delta quantities — all computed locally from your COMTRADE data. Explore results in dedicated analysis tabs.
Choose to work entirely locally — or save recordings and analyses to the cloud. Search, filter, organize in folders, revisit anytime. Generate shareable links to send fault reports to colleagues instantly.
Structured fault reports with fault type classification, protection performance assessment, and actionable recommendations. Currently available to early-access users — sign up to request access.
Client-side COMTRADE parser. Files never leave your browser until you choose to save.
Runs in any modern browser. No desktop software, no license fees, no vendor lock-in.
Under the Hood
Real engineering math, computed locally — every number is auditable.
Files are decoded client-side into structured channels.
Phasors, symmetrical components, impedance, power, and more — computed locally in your browser.
Interactive charts for every computed quantity. Phasor diagrams, impedance plots, harmonic spectrums, power quality.
For early-access users: AI interprets the computed quantities and produces a structured fault report.
Your files never leave the browser
Every signal is derived from DFT-based phasor extraction
Every number traces back to the charts
No account needed — view waveforms, compute signals, and explore phasors without signing up. Create a free account to unlock cloud storage, sharing, and all analysis tabs. AI fault reports available for early-access users.