What is maximum sound/noise level of MV transformer?

Maximum sound power level for MV transformer would be compliant with Energy Networks Association ENA TS 35-1 requirements. Please see attached Schneider transformer data including noise levels.
Sound level tests on transformers for more specific sound level data, are not a routine test requirement – they are a “special” test as defined within IEC60076, as such not carried out unless specifically requested when order is placed.

Lower transformer sound power levels are also available should they be required – achieved by bespoke/ETO specific designs.

Released for: Schneider Electric UK