After Winding Resistance Testing
DC test current can leave the transformer core magnetized. Demagnetize before moving to tests that may be influenced by core remanence.
DV Power transformer demagnetization · Canada
The DEM60R provides fully automatic demagnetization for single- and three-phase transformers, helping establish a more reliable magnetic starting condition after DC testing or service events.

Residual magnetism can affect the next measurement or operating event. These are the most common reasons to add a controlled demagnetization step.
DC test current can leave the transformer core magnetized. Demagnetize before moving to tests that may be influenced by core remanence.
Establish a more consistent starting condition before energization, excitation-current testing, frequency-response work or related diagnostics.
Use a dedicated process when the procedure requires automatic demagnetization plus information about initial and remaining magnetic flux.
Dedicated transformer demagnetizer
A fully automatic instrument for demagnetizing single- and three-phase power transformers using controlled current reversal and a progressively decreasing current sequence.
Choose a dedicated demagnetizer when three-phase automation, higher demagnetization current or remanent-flux evaluation is required. For combined winding-resistance and demagnetization workflows, ask RCCE whether another DV Power platform better fits the complete test procedure.
Send RCCE the transformer type and rating, winding configuration, primary and secondary voltages, available connection points, previous DC tests and whether remanent-flux documentation is required.
Final model suitability, accessories, pricing, availability and service scope must be confirmed by RCC Electronics.