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Automatic Turns Ratio Instrument ATRI-3
Model: ATRI-3
Fully automated three-phase transformer turns ratio instrument with LV-side excitation.
Turns ratio range1.000 to 200.0
Accuracy class0.1
ParametersTurns ratio, excitation current, HT & LT voltages, polarity, % deviation
Vector groupsYNyn0 & Dyn11
Specifications
| Turns ratio range | 1.000 to 200.0 |
|---|---|
| Accuracy class | 0.1 |
| Parameters | Turns ratio, excitation current, HT & LT voltages, polarity, % deviation |
| Vector groups | YNyn0 & Dyn11 |
| Phase testing | 3-phase via selector switch, no clip changes |
| Display | 16×2 LCD |
| Auxiliary supply | 230 V AC ±20% |
| Dimensions | 135 (H) × 280 (W) × 280 (D) mm |
| Test cable | One set, 10 m |