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Power transformer degaussing instrument
Description:
XHXC105 current transformer degaussing instrument is to eliminate hazards of the residual magnetism after the DC resistance test of large power transformers. It can protect power transformer from inrush current impact, as well as has an extremely important role in safety commissioning.
Due to the inherent hysteresis of the ferromagnetic materials, after the transformer voltage ratio, DC resistance measurement will be residual magnetism in the core. Due to the presence of residual magnetism the transformer put into operation the transformer core would be a half saturation, resulting in a large number of harmonics in the excitation current, which not only increases the reactive power consumption of the transformer, and may cause malfunction of the relay and economic losses. Therefore, we must do the degaussing work to ensure safe running before the transformer put into operation.
Second-generation of XHXC105 power transformer degaussing instrument added the automatic degaussing mode based on the first generation of products, the user does not have to repeat the operation. Increase from the demagnetization time from the original 30 minutes to less than four minutes.
Main Feature:
1. Using patented technology - DC frequency attenuation technique
2. Three phases transformer, only the B phase degaussing
3. Automatic judgment, 16AD data collected and processing function
4. Degaussing mode: Automatic and manual
5. Fast degaussing, not affected by voltage grade and capacity constraints 30 min increased to not more than 4min
6. Erasure effect: automatic over 90%/time manual over 80%/time
7. Current lines of DC resistance testing can be directly used, easily matched with DC resistance test;
8. Display the degaussing current, time and schedule.
9. Suitable for large power transformer and PT/CT to eliminate the residual magnetism of 35 kV and above before putting into operation .Especially for 330 kV and above voltage level of large capacity transformer;
10. Small volume and light weight.
Main technique:
1. Erasing current: 10/5A, 1A, 200mA, 5mA (Can be customized)
2. Erasing time: automatic 9min/time (Do not think about voltage grade and capacitor)
3. Erasure effect: automatic over 90%/time manual over 80%/time
4. Degaussing process: 0-100% Automatic recording and erasing time
5. Working power: AC220V + 10% 50Hz + 1Hz
6. Range: 0.01-300
7. Manual: 3min / time (Do not think about voltage grade and capacitor)
8. Display: LCD 128 X 64 pixel
9. Weight: 5 kg (net weight) not including the connection wire
10. Temperature: -25 degree - 50 degree, RH≤90%.
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