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XHXC110 Industrial DC Demagnetizer is engineered for transformer maintenance teams that already perform DC resistance testing. It eliminates residual magnetism in large power transformers and instrument transformers after DC resistance or turns ratio testing, and its demagnetizing output directly reuses the current leads already connected for DC resistance measurement — so crews transition from resistance testing to demagnetization without re-wiring. Residual magnetism saturates the transformer core during energization, generating heavy harmonics that increase reactive power consumption and can trigger relay protection misoperation. The XHXC110 adopts a patented DC frequency conversion attenuation principle to remove this residual magnetism before commissioning.
Who It Is Built For
Engineered for transformer DC resistance testing and preventive maintenance teams, power utility maintenance departments, and electrical testing laboratories that already run standard transformer test sequences — not for one-off field commissioning crews. The XHXC110 is designed for routine, repeatable integration into existing DC resistance testing workflows: reuse the current leads, demagnetize in minutes, and move on to the next unit with no re-cabling.
Technical Specifications
Parameter
Specification
Demagnetization Performance
Demagnetizing Current
10A, 5A, 1A, 500mA, 200mA (customizable)
Demagnetizing Mode
Manual / Automatic
Demagnetizing Time
Manual 3 min/cycle; Automatic 9 min/cycle
Demagnetizing Effect
Greater than 90% per cycle
Demagnetizing Progress
0–100%
Power & Environment
Power Supply
AC 220V ± 10%
Power Frequency
50 Hz ± 1 Hz
Operating Temperature
-25°C to 50°C
Operating Humidity
≤ 90%
Weight
5 kg (excluding test leads)
Key Performance Features
Direct DC resistance test line integration — the demagnetizing output reuses the current leads already connected for DC resistance testing, eliminating re-wiring between test stages.
Patented DC frequency conversion attenuation principle — current amplitude decreases periodically and polarity alternates periodically, progressively shrinking the hysteresis loop to cancel residual magnetism.
Phase-B demagnetization — three-phase transformers are fully demagnetized by demagnetizing phase B only.
Automatic current stabilization judgment with 16-bit AD data acquisition and processing for repeatable results.
Manual and automatic demagnetization modes — automatic mode sequences through 10A, 5A, 1A, 500mA, 200mA until progress reaches 100%, then discharges automatically.
Fast demagnetization — reduced from 30 minutes to no more than 4 minutes per cycle.
Significant demagnetization effect — improved from 80% to over 90% per cycle.
Chinese interface with real-time progress display — clear, intuitive operation.
Suitable for 35 kV and above large power transformers and instrument transformers, especially 330 kV and above large-capacity transformers.
Compact and lightweight — 5 kg, ideal for routine maintenance work.
Working Principle
The XHXC110 applies the DC attenuation frequency conversion method: the demagnetizing current amplitude decreases periodically and its polarity alternates periodically, progressively shrinking the hysteresis loop and mutually cancelling magnetic poles until the residual magnetism is eliminated.
Product Image
Frequently Asked Questions
Q1: How does the XHXC110 integrate with our existing DC resistance testing workflow?
The demagnetizing output terminals directly reuse the current leads already connected for DC resistance measurement, so demagnetization becomes a seamless next step in the same test sequence. After the DC resistance test is complete, the crew simply switches to demagnetization mode and runs it without moving or reconnecting the leads, saving per-unit setup time on every transformer.
Q2: Is it suitable for routine preventive maintenance programs at power utilities?
Yes. Preventive maintenance teams that already run scheduled DC resistance tests can add demagnetization as a quick, repeatable step. The automatic mode sequences through all five current levels unattended and discharges automatically, so a single technician can complete demagnetization as part of a standard maintenance routine without extra supervision.
Q3: Can electrical testing laboratories add demagnetization to their standard transformer test sequence?
Absolutely. Because the XHXC110 reuses the DC resistance test current leads, laboratories can introduce demagnetization into an existing test sequence without modifying their setup or purchasing additional lead sets. The 16-bit AD acquisition and over-90% per-cycle effect provide documented, repeatable results suitable for formal test reports.
Q4: How much setup time does the DC line integration actually save?
Traditional demagnetizers require connecting a separate set of output leads after the DC resistance test is finished. The XHXC110 eliminates this re-wiring entirely by reusing the current leads already in place, which typically removes several minutes of setup per transformer and reduces the chance of connection errors between test stages.
Q5: What is the difference between this DC line integration model and a standalone demagnetizer?
A standalone demagnetizer requires its own dedicated output connections, adding wiring steps and setup time. This XHXC110 model is purpose-built for integration: it is designed to work in sequence with DC resistance testing equipment, reusing the same current leads, so the entire resistance-test-plus-demagnetization workflow runs faster and with fewer manual steps.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2013
Total Annual:
1000000-5000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd.
Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical...
Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd.
Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical...
