Are you aware of theses types of testing an electrical transformers should have? For confirming the specifications and performances of an electrical power transformer it has to go through numbers of testing procedures. Some tests are done at manufacturer premises before delivering the transformer.
Mainly two types of transformer testing are done at manufacturer premises- type test of transformer and . Power transformer testing. As such, their condition is critical for reliable , fault-free operation.
Any failures can have serious consequences. The resulting overloads of grid sections can lead to far-reaching supply and production failures. The preference is that all large power Transformers (MVA) be tested with TTR test set. Load CT circuits overall and flash for polarity.
Insulation performs its roles best when it is clean, dry, relatively void-free, and utilised within a certain temperature bandwidth. The following electrical field tests provide information about the integrity of the transformer insulation. Megger test equipment help to measure transformer insulation resistance, winding resistance, sweep frequency response analysis, and OLTC diagnosis tests enable the assessment and overall health of the transformer to . Continue reading “Transformer testing”