Power Transformer Degaussing Instrument
With DC Frequency Conversion Attenuation Principle
Product Description
The power transformer transformer degaussing instrument is a special equipment for eliminating the hazards of residual magnetism after the DC resistance test of large power transformer transformers. It plays an extremely important role in protecting power transformer transformers from the impact of excitation inrush current and ensuring safe operation.
Due to the inherent hysteresis phenomenon of ferromagnetic materials, residual magnetism will remain in the iron core after performing operations such as voltage ratio and DC resistance measurements on the power transformer. Due to the existence of residual magnetism, when the transformer is put into operation, the residual magnetism of the iron core will saturate the transformer core for half a cycle, generating a large number of harmonics in the excitation current. This not only increases the reactive power consumption of the transformer, but may also cause the relay protector to malfunction. , causing certain economic losses. Therefore, we must perform degaussing work before the transformer is put into operation to ensure the safe and normal operation of the transformer.
This power transformer transformer degaussing instrument XHXC105 adds an automatic degaussing mode based on the original series of products, so users do not have to repeat operations. The size of the LCD module is increased to display richer information. Two-button operation: red for selection and reset, green for confirmation and start, making operation more convenient. The degaussing time of the product has been increased from the original 30 minutes to less than 4 minutes.
Product Parameters
| Degaussing current | 5A, 1A, 200mA, 5mA can be customized |
| Degaussing method | manual, automatic |
| Degaussing time | manual 3min/time, automatic 9min/time |
| Degaussing effect | greater than 90%/time |
| Degaussing progress | 0~100% |
| Working power supply | AC 220V±10% |
| Power frequency | 50Hz±1Hz |
| Ambient temperature | -25ºC~50ºC |
| Ambient humidity | ≤90% |
| Weight | 5kg (excluding test line) |
Features
1, Adopts patented technology-DC frequency conversion attenuation principle;
2, The three-phase transformer can achieve the purpose of degaussing only by degaussing the B phase;
3, With automatic flow stabilization judgment and 16-bit AD data acquisition and processing functions;
4, With manual/automatic degaussing mode;
5,Fast degaussing speed - single time increased from 30min to no more than 4min;
6,The degaussing effect is obvious - increased from 80% to more than 90% in a single pass;
7,The current line for DC resistance testing can be directly used to facilitate matching with DC resistance testing;
8,Using Chinese interface, the interface is clear and the degaussing progress is displayed in real time;
9,Suitable for eliminating residual magnetism before large-scale power transformers and transformers of 35kV and above are put into operation; especially for large-capacity transformers with voltage levels of 330kV and above;
★ This product is small in size and light in weight, making it very suitable for use on site.
Degaussing output: connected to the degaussed transformer or transformer bushing
LCD screen: displays degaussing working mode, current value, and degaussing progress
Power switch: AC 220V power switch
Reset (red button): mode and current selection/degaussing to end discharge/interrupt instrument operation
Start (green button): menu confirmation/degaussing start
Ground terminal: connected to the ground wire
AC 220V: Connect to AC 220V power socket.
Main performance features
1. Adopt patented technology-DC frequency conversion attenuation principle;
2. The three-phase transformer can achieve the purpose of degaussing only by degaussing the B phase;
3. It has automatic flow stabilization judgment and 16-bit AD data acquisition and processing functions;
4. With manual/automatic degaussing mode;
5. The degaussing speed is fast - a single time is increased from 30 minutes to no more than 4 minutes;
6. The degaussing effect is obvious - increased from 80% to more than 90% in a single pass;
7. The current line for DC resistance testing can be directly used to facilitate matching with DC resistance testing;
8. The English interface is adopted, the interface is clear, and the degaussing progress is displayed in real time;
9. Suitable for eliminating residual magnetism before large power transformers and transformers of 35kV and above are put into operation; especially for large-capacity transformers with voltage levels of 330kV and above;
10. This product is small in size and light in weight, making it very suitable for use on site.
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Portable Fast Automatic Power Transformer Degaussing Demagnetization Instrument Images
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