Transformer SFRA Tester

MOEORW-WBX21 is a specialized instrument for detecting transformer winding deformation, developed based on the sweep frequency response analysis (SFRA) method and strictly in accordance with the DL/T 911-2004 standard. It is used to accurately determine whether structural deformations such as twisting, bulging, displacement, and loosening have occurred in the windings of power transformers. It is suitable for substation field testing, factory testing, overhaul acceptance, and long-term condition monitoring.

1) The technical performance fully complies with the national standard DL/T 911-2004 "Frequency Response Analysis Method for Winding Deformation of Power Transformers" ;

2) High-performance embedded processing chips and digital narrowband filtering technologies are used to effectively suppress power frequency and high-frequency interference ;

The tester can be connected via both wired network and wireless WIFI (split unit ) for convenient on-site measurement;

4) The frequency sweep range is from 1KHz to 2000KHz, and the frequency sweep method can be flexibly selected, which facilitates data comparison and analysis;

5) Fast measurement speed, with an average of 1000 frequency points measured in no more than 1 minute;

6) The all-in-one PC uses a high-reliability industrial computer with a screen resolution of 1024×800. The display effect is clear and delicate;

7) Multiple spectral and data result displays, such as amplitude-frequency plots, difference curves, and difference rainbow bars, with adaptive adjustment of curve height to aid in detailed observation;

8) All major system functions are completed within a single user interface, making it convenient for users to operate;

9) Test data can be "sealed " to protect the data and facilitate subsequent longitudinal comparisons;

10) Supports the generation and printing of test data reports;

11) Short circuit protection ensures that the instrument is not damaged in the event of an accidental short circuit during wiring.

Factory TestWinding deformation inspection and qualification for newly manufactured transformers.

Handover & AcceptancePre-operation inspection and acceptance for installed transformers.

Routine Maintenance TestPeriodic preventive test and condition monitoring for substation transformers.

Fault DiagnosisRapid winding damage evaluation after short-circuit shock.

Overhaul InspectionComparison test before and after transformer overhaul to verify repair effect.

Research & IdentificationTest, analysis and appraisal for power equipment research.