Other tests on transformers

In the previous article, we have emphasized the importance of testing to guarantee the optimal condition and functionality of transformers. Let's now explore other key tests commonly employed to ascertain the performance and reliability of this technology.

• Insulation Test: the insulation between the primary and secondary winding is evaluated by applying a test voltage. The objective of this test is to ensure that there are no leakage currents between the two windings.
• Coil Resistance Test: the resistance of the individual transformer coils is measured to verify that it is in line with the design specification.
• Noise Test: the transformer is placed in an environment with an extremely low background noise to confirm its functionality in minimizing or eliminating the noise generated.
• Verification of the thermal characteristics: using thermometers it is possible to check that the temperature of the transformer does not exceed the limits permitted by the product manufacturer.