T-218 Automatic Portable Transformer Demagnetization Tester
The T-218 is a fully automatic transformer demagnetization tester which performs three-phase transformer and single-phase and three-phase power transformers demagnetization. Transformer magnetic core demagnetization requires the application of AC current with magnitude decreasing to zero. T-218 provides this AC current by internally changing the polarity of a controlled DC current. During the demagnetization process, the instrument supplies the current at decreasing magnitude for each step, following a proprietary algorithm. The principle of the option is to apply a constant current of alternate polarities to the transformer winding, as per the IEEE 0062 1995 standard.
T-218 has a built-in proprietary algorithm for calculating remanent magnetism after the demagnetization. The instrument measures initial flux before demagnetization, maximum flux during demagnetization, and remanent flux after demagnetization. This feature provides useful information about the state of magnetic core after the demagnetization, and assures user that demagnetization process is successful. it enables safe and efficient power transformer demagnetization.
Application
- Power engineering commissioning company;
- Electricity power bureau & power company;
- Electrical department of industrial and mining enterprises;
- Railway electrical department;
- Transformer manufacturers;
- Voltage transformer factory;
- Electrical testing center;
- Research institutes;
- Power plant;
- Universities;
Features
- Demagnetize current 5A, 1A, 200mA (10A, 20A, 50A optional);
- Suite for 3 phase & 1 phase transformer;
- 0.38KV-800KV transformer;
- Demagnetize faster;
- Auto test or manual test optional;
- 7 inch touch TFT color LCD;
- Support residual magnetism detection;
- Automatic current stabilization judgment, 16 bit A/D data acquisition and processing function easy to operate;
- Designed for rugged field use;
- High power, with 8m test cable;
- Portable and lightweight, weight only 5kg;
Parameters
| Electrical parameters | |
|---|---|
| Power supply | Single phase AC 220V±10% or 110V±10%, 50/60Hz AC |
| Cooling way | Intermittent air cooled |
| Current output | 200mA, 1A, 5A (10A, 20A, 50A optional) |
| LCD | 7 inch touch TFT color LCD |
| Test cable | 8m or customized |
| Demagnetization progress | 0-100% |
| Test method | Manual or auto |
| Test time | Faster 2minutes/nomal 10 minutes/manual 4minutes |
| Degree of protection | IP65 |
| Standard | LVD 2014/35/EU, EN 61010-1:2010 Directive 2014/30/EU, EN 61326-1:2013, IEEE 0062 1995 |
| Mechanical parameters | |
| Dimension (L×W×H)(mm) | 280 × 250 × 160 |
| Weight (kg) | 3 |
| Environmental conditions | |
| Operating temperature | -20°C to 55°C |
| Storage temperature | -40°C to 70°C |
| Relative humidity | ≤85%RH |
