The Tettex 2293 is an automatic winding analyzer optimized for three-phase power and distribution transformer measurements and capable of performing winding resistance, TTR, short circuit impedance, and tap changer tests. The distinguishing feature of the 2293 model in particular is its ability to perform all these tests in a row without reconnection, with high accuracy and quick test times.
Features
- Multipurpose: winding resistance, turns ratio, dynamic resistance on tap changer, short circuit impedance, and more
- Resistance measurement made easy – simple one-time-connection system: Once connected will test all phases and windings
- Large 7" touch screen interface with full graphical test visualization
- Unique simultaneous winding magnetization method (SWM), equivalent to traditional equipment with up to 100 A test current
- Tap changer control signal
- Heat run function and 6 temperature measurement channels with automatic resistance value correction
- Data transfer over USB memory-stick or direct to PC
Specifications
| Max. measuring Current DC |
32 A (user selectable) |
| Max. Charging Voltage |
100 V |
| Range |
0.1 μΩ … 300 kΩ |
| Resistance range |
Accuracy |
| 0.1 μΩ ... 300 μΩ |
0.1% ± 0.5 μΩ |
| 300.1 μω … 30 kΩ |
0.1% |
| 30.01 kΩ … 300 kΩ |
1% |
| Mains Power Supply Specs |
| Voltage |
90 VAC … 264 VAC |
| Maximum power |
1 kW |
| Frequency |
47 Hz … 63 Hz |
| Environmental Specs |
| Operating temperature |
-10°C – +60°C |
| Storage temperature |
-20°C – +70°C |
| Humidity |
5 - 90% RH non-condensing |
| Dimensions (W x D x H) |
521 mm x 425 mm x 216 mm |
| Weight |
17.8 kg |
Applications
- Resistance measurement and demagnetization function for all types of highly inductive test objects
- Power transformers
- Distribution transformers
- Generators and motors
- Instrument transformers