Sample COMTRADE files (free download)
Four COMTRADE records for testing a reader, teaching, or learning to read fault and power-quality data. Each comes as a .cfg + .dat pair (ASCII) and as a single .cff file, written to IEEE C37.111-2013.
These records are synthetic: generated from a model, not recorded on any real network. Station and device names are illustrative. They are free to use for any purpose, including commercial use, with no attribution required (CC0 1.0).
A-phase-to-ground fault on a 132 kV line
A single-line-to-ground fault: A-phase voltage sags to about 48% for about five cycles, residual current appears, and the breaker trip contact operates. Six analog channels, two status channels, 4.8 kHz, 0.5 s.
| File | FDR-2214_AG-FAULT |
|---|---|
| Station · device | ASHFORD 132kV · SEL-411L / REC-01 |
| Channels | 6 analog, 2 status |
| Sampling | 4.8 kHz at 50 Hz, 2400 samples |
Download: .cfg · .dat · .cff Open in SagSwell
Upstream sag at a 22 kV industrial feeder
The same upstream fault seen from a distribution feeder: a sag to about 67% on all three phases. Useful for IEEE 1159 classification and the ITIC curve. 3.2 kHz, 0.85 s.
| File | PQM-07_SAG-68PCT |
|---|---|
| Station · device | PARK ROYAL IND. EST. 22kV · PQM-3000 / FEEDER 07 |
| Channels | 6 analog, 2 status |
| Sampling | 3.2 kHz at 50 Hz, 2720 samples |
Download: .cfg · .dat · .cff Open in SagSwell
Shallow sag at a 400 V motor control centre
A shallow sag to about 86% at low voltage, recorded at the same moment as the two records above, so the three can be lined up on one timeline. 3.2 kHz, 0.9 s.
| File | PQM-22_MCC-SAG-865 |
|---|---|
| Station · device | PARK ROYAL MCC-2 400V · PQM-3000 / MCC BUS |
| Channels | 6 analog, 2 status |
| Sampling | 3.2 kHz at 50 Hz, 2880 samples |
Download: .cfg · .dat · .cff Open in SagSwell
Harmonic distortion on a variable-speed-drive bus
Steady-state distortion at a 400 V bus feeding drives: no disturbance, a spectrum to study, THD and the IEEE 519 limits. 6.4 kHz, 1.2 s.
| File | PQM-11_VSD-HARMONICS |
|---|---|
| Station · device | TILBURY DOCKS 400V MCC · PQM-3000 / VSD BUS |
| Channels | 6 analog, 2 status |
| Sampling | 6.4 kHz at 50 Hz, 7680 samples |
Download: .cfg · .dat · .cff Open in SagSwell
What you can do with them
- Check that a COMTRADE reader or your own parser handles the 2013 format, ASCII data and the single-file .cff.
- Teach: the first three records show one upstream fault seen from three buses at three voltage levels.
- Practise reading a record: IEEE 1159 sags, the ITIC curve and harmonics.
New to the format? See the COMTRADE file format explained.