Special Tests
Some tests are performed at the option of the customer.
Sound Testing
ANSI standards define the required sound levels for transformer but some customers specify reduced sound levels. The sound generated by a transformer is affected by the core geometry, flux density, tank design, and the quality of assembly of all the transformer components into a completed unit. Sound tests are made with the unit powered at 100% and 110% of rated voltage under no-load conditions.
Temperature Tests
Core losses and coil losses are the primary sources of heating within the transformer. Our transformers are guaranteed to have an average coil winding temperature of no more than 65 C rise over ambient air temperature when operated at rated voltage and load conditions. The temperature test is performed to determine the thermal characteristics of the transformer and to verify that they are within design limits.
