Transformers shall be repaired to meet the highest quality standards. Testing standards shall meet or exceed the standards of the American National Standards Institute (ANSI) as well as those of new manufacturers. The reconditioning process shall begin by determining the condition of the transformer to be repaired. Two preliminary tests shall be run on the unit. 1) Turn Ratio Test – checks the ratio of primary to secondary turns and polarity. 2) Megohm Test – measures the amount of moisture in the coil. If the results of these tests are deemed satisfactory, the repair process shall begin. The repair process shall start by removing the transformer oil. A visual inspection must be conducted to ensure that the core and coil assembly is intact, all switches are in good working order, and all clearances to ground meet specifications.
