Portable Fast Automatic Power Transformer Degaussing Demagnetization Instrument

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.

• Adopts patented technology-DC frequency conversion attenuation principle;
• The three-phase transformer can achieve the purpose of degaussing only by degaussing the B phase;
• With automatic flow stabilization judgment and 16-bit AD data acquisition and processing functions;
• With manual/automatic degaussing mode;
• Fast degaussing speed - single time increased from 30min to no more than 4min;
• The degaussing effect is obvious - increased from 80% to more than 90% in a single pass;
• The current line for DC resistance testing can be directly used to facilitate matching with DC resistance testing;
• Using Chinese interface, the interface is clear and the degaussing progress is displayed in real time;
• 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.

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.