BS EN 50588-1:2017 covers medium power transformers. `Medium power transformer? means a power transformer with a highest voltage for equipment higher than 1,1 kV, but not exceeding 36 kV and a rated power equal to or higher than 5 kVA but lower than 40 MVA.

National practices may require the use of highest voltages for equipment up to (but not including) 52 kV, when the rated voltage is less than 36 kV (such as Um = 38,5 kV or Um = 40,5 kV). This is considered to be an unusual case of a large power transformer, where the requirements are those for a medium power transformer with Um = 36 kV.


Cross References:
EN 60085 (IEC 60085:2007) AS
IEC 60505:2011 Ed 4
IEC 60076-6:2007
EN 50387:2002
EN 61378-1 (IEC 61378-1:2011) AS
IEC 61378-1:2011
IEC 60085:2007
EN 50386:2010
EN 60076-6:2008
IEC/TR 60616
EN 60076
EN 61869-1:2009
EN 50216
EN 60505 (IEC 60505:2011) AS
IEC 61100:1992
EN 50181:2010
EN 50180-1:2015
EN 50329:2003
EN 61100:1992
EN 50464-4:2007
IEC 60076-1:2011
EN 60721
Commission Regulation (EU) No 548/2014
EN ISO/IEC 17065
EN 60076-1:2011
EN 60038
EN 62262
EN 50464-1
EN ISO 9001 (ISO 9001:2015) AS
ISO/IEC 17065:2012
ISO 9001:2015
IEC/TR 62696:2011 Ed 1
IEC 60529:1989 Cons Ed 2-1


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