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eng Simple ageless methods for field testing power transformers of no-load condition at the low induced voltage
Gurin, Vitaly
Transformers Magazine Vol. 9, No. 1, 2022
The low voltage supply to one transformer winding and measurement of voltage, current, and losses in different phases when other windings are open have long been used to assess the condition of the core and windings during commissioning, during periodic preventive maintenance (operational tests), during diagnostics, tests after an accident and after repair. These simple procedures are performed offline and are often critical in determining the health of the transformer and, in some cases, locating the fault in the transformer. These methods...
Hrčak ID: 270803