Eaton Logo

Why does Eaton measure transformer data at 20°C?

To standardize this measurement, so all manufacturers are measuring/reporting it at the same temperature, UL, ANSI, IEEE standards require various measurements be taken at Temperature Rise +20°C, Heat Loss is one of those measurements. Impedance is also measured at Rise +20°C.


For a selection of Eaton's dry type transformers please see our Catalog Volume 2 Tab 2.