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| Nguồn gốc: | Tây An Thiểm Tây Trung Quốc |
| Hàng hiệu: | XZH TEST |
| Chứng nhận: | ISO CE |
| Số mô hình: | XXC105 |
XHXC105
The demagnetizer for power transformers and mutual inductors is a dedicated device designed to eliminate the residual magnetism hazards of large power transformers and mutual inductors after DC resistance tests. It plays an extremely important role in protecting power transformers and mutual inductors from inrush current impacts and ensuring their safe commissioning.
Product Features:
Utilizes patented technology – DC variable frequency attenuation principle;
Demagnetization is achieved by demagnetizing only phase B of the three-phase transformer;
Features automatic current stabilization judgment and 16-bit AD data acquisition and processing;
Offers manual/automatic demagnetization modes;
Fast demagnetization speed – reduced from 30 minutes to no more than 4 minutes per cycle;
Significant demagnetization effect – improved from 80% to over 90% per cycle;
Technical Specifications
| Demagnetizing Method | Manual, Automatic |
| Demagnetizing Progress | 0–100% |
| Demagnetizing Current | 5A, 1A, 200mA, 5mA (customizable) |
| Demagnetizing Efficiency | Greater than 90%/cycle |
| Operating Power Supply | AC 220V±10% |
| Ambient Temperature | -25℃～50℃ |
Working Principle
The power transformer and current transformer demagnetizer utilizes the principle of DC attenuated frequency conversion.
(1) It employs a DC demagnetization method;
(2) The current amplitude decreases periodically;
(3) The current polarity changes periodically;
(4) Demagnetization is achieved by gradually reducing the hysteresis loop and canceling out the magnetic poles.
