IEEE C57.93-2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
10-18-2021
English
03-31-2008
1 Scope
2 Normative references
3 Liquid-immersed power transformers rated 501 kVA to 10 MVA,
or with primary windings less than 69 kV
3.1 General
3.2 Inspection and receipt
3.3 Internal inspection
3.4 Handling
3.5 Assembly
3.6 Storage
3.7 Tests
3.8 Energization
3.9 Maintenance
4 Liquid-immersed power transformers rated 10 MVA and above or
with high-voltage windings 69 kV and above
4.1 General
4.2 Shipping
4.3 Inspection and receipt
4.4 Internal inspection
4.5 Handling
4.6 Anchorage
4.7 Assembly
4.8 Vacuum treatment
4.9 Field drying of insulation
4.10 Reprocessing
4.11 Tests after the transformer has been assembled and
filled with dielectric liquid
4.12 Energization
4.13 Maintenance
4.14 Storage guidelines
Annex A (informative) Bibliography
Annex B (informative) Figures and table
Annex C (informative) Field equipment for oil-filling EHV
transformers and determination of insulation dryness
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