The transformer comprehensive testing platform is also known as: transformer comprehensive testing platform, transformer comprehensive characteristic testing platform, transformer characteristic testing platform, transformer comprehensive testing platform, transformer testing platform, transformer testing platform. The AC/DC test transformer utilizes advanced production equipment and adopts a new process of coil winding epoxy vacuum casting and CD type iron core. Compared with similar oil immersed transformers, it significantly reduces weight and volume, improves insulation strength and moisture resistance in terms of quality, and effectively weakens leakage magnetic flux, greatly enhancing the transformer's ability to withstand the impact of test short-circuit current. The test items are complete, including short-circuit (current not passing through electrical appliances, directly connected to the two poles of the power supply) impedance values, instruments, and frequency response methods.
(1) In order to correctly determine the deformation of the transformer (air pressure variable), the original data of the winding deformation is first measured during the factory and installation of the transformer, and fingerprints are left for future comparison.
(2) After a winding short circuit (current not passing through electrical appliances, directly connected to the two poles of the power supply) accident, in addition to measuring deformation, some routine tests and special tests should be conducted, and other tests should also be combined.
(3) In order to correctly determine the deformation of the transformer (air pressure variable), the original data of the winding deformation measured during the factory and installation of the transformer should be retained first; Fingerprints are convenient for future comparison. The test items are complete, including short-circuit (current not passing through electrical appliances, directly connected to the two poles of the power supply) impedance values, instruments, and frequency response methods.
(4) After a winding short circuit (current not passing through electrical appliances, directly connected to the two poles of the power supply) accident, in addition to measuring deformation, some routine and special tests should be carried out, and a comprehensive analysis should be conducted based on the magnitude of the short circuit current and the length of the short circuit time to determine the deformation of the transformer (air pressure variable) winding. The transformer comprehensive testing platform is also known as: transformer comprehensive testing platform, transformer comprehensive characteristic testing platform, transformer characteristic testing platform, transformer comprehensive testing platform, transformer testing platform, transformer testing platform.
(5) When using the frequency response method to determine the deformation of a transformer (air pressure variable), in addition to checking whether the frequency response characteristics of the three-phase windings are consistent, the correlation coefficient R value between the drawn three-phase waveforms should also be considered. If the R value is greater than 1.0, it indicates that the deformation is not significant, and if the R value is less than 1.0, attention should be paid.