Waveforms & digital events
Inspect synchronized voltage, current and digital status signals with trigger-relative navigation.
COMTRADE analysis for protection engineers
See the whole event.
Understand the details.
Open disturbance recordings, follow voltage and current waveforms alongside digital events, and examine timing, RMS, phasors and impedance in one workspace.
Time Signals 50 Hz · C1 / C2
TRIGGER RELATIVEInstantaneous
VoltageCurrentDigitalSynchronized view
Waveform illustration
CAPABILITIES
Explore what happened, signal by signal.
Follow the recorded event and compare electrical measurements without losing your place on the timeline.
Event timing
Place C1 and C2 around a transition to read signal values and measure elapsed time.
RMS, phasors & harmonics
Compare instantaneous and one-cycle RMS signals, phase relationships and harmonic content.
Impedance & values
Review R–X trajectories, supported protection-zone overlays and measurements in the value table.
WORKFLOW
From COMTRADE file to event review.
Open the recording, measure the sequence and inspect the electrical response.
01
Open your recording
Choose a .cfg file with its matching .dat. The recording and available companion metadata appear in the workspace.
02
Inspect the event timeline
Find a pickup or trip, zoom into the interval and position C1/C2 to measure the timing.
03
Review electrical measurements
Switch to RMS, phasor, harmonics, impedance and table views to examine the recorded behavior.
DOWNLOAD
Download ArDiRec for your desktop.
Choose your operating system. Both downloads include installation instructions and verified release checksums.
Latest stable v0.2.0Release details ↗
Windows
Windows 10 / 11 · x64Install for your Windows user account, launch from the Start menu and uninstall normally.
Download Windows ZIPLinux
Linux desktop · x86_64Install the Debian package on compatible systems or launch the included AppImage.
Download Linux ZIPWindows note: The installer is unsigned and may display a SmartScreen warning. Confirm the source and SHA-256 checksum before installing.
Verify SHA-256 checksums ↗OPEN ENGINEERING
Free, open-source engineering tools.
ArDiRec is free to use and available under GPL-3.0-or-later. Explore the source, read the supported-format guidance or report an issue with a recording.
ArDiRec is designed for manual event investigation, not automatic fault diagnosis. Check recording metadata and measurements before using results in protection decisions.