• Technical Associates Limited

Transformers

Technical Associates offers Transformer. This is a single phase/wound core transformer. High-grade CRGO steel, having low core loss is used for making circular cores. Thereafter, inner core mandrel is inserted and hydraulic jacks achieve correct shape. Thus formed wound core is annealed in an inert environment, which ensures that the original characteristic of the magnetic steel is retained. Besides the testing of the individual components and subassemblies at different stages, each transformer is tested as per agreed standards of acceptance. This test is not limited to: turns ratio, polarity, exciting current and no load loss measurement, impedance and load loss measurement, induced over voltage test, separate source voltage withstand test, insulation resistance and winding resistance. Finally, every transformer is tested for oil leakage and pressure. Type tests such as short circuit and impulse are done at third party laboratories as per customer requirements.