Transformer capacity characteristic tester is a high-precision testing device specifically designed for accurately measuring the capacity and various electrical characteristics of power transformers. It is widely used in the operation, maintenance, and repair of transformers in power, railway, petroleum, and other systems, and plays a crucial role especially in the power sector when investigating and dealing with behaviors such as unauthorized replacement of transformer nameplates by dishonest users or evasion of basic electricity charges.



The following is a detailed introduction to the core functions, technical features, and parameters of such instruments:

⚡ Core Testing Functions

These instruments are highly integrated, with one device often equivalent to multiple traditional test instruments, capable of completing multiple key parameter tests of transformers on its own:

Capacity and Type Testing: It can accurately measure the actual capacity of various distribution transformers, and can automatically infer the transformer model (such as oil-immersed S9, S11, S13, dry-type SCB10, SCB13, etc.) through no-load tests, effectively identifying transformers that are "overqualified for the task" or have been privately upgraded in capacity.

Loss Parameter Measurement: It can perform no-load tests and load (short-circuit) tests on transformers, accurately measuring core power frequency parameters such as no-load current, no-load loss, short-circuit voltage (impedance voltage), and load loss.

Advanced Power Quality Analysis: Some high-end models integrate the functions of harmonic analyzers and oscilloscopes, capable of measuring the 2nd to 32nd harmonic content of voltage and current, total harmonic distortion, and performing vector analysis and drawing vector diagrams to help determine on-site wiring conditions.