IEEE DRAFT C57.93 : D13 2005
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
INSTALLATION AND MAINTENANCE OF LIQUID-IMMERSED POWER TRANSFORMERS
31-03-2008
12-01-2013
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 Re-Processing
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
A.1 Bibliography
Annex B (informative) Figures and Tables
B.1 Figures and tables
Annex C (informative) Field equipment for oil-filling EHV
transformers and determination of insulation dryness
C.1 Recommended minimum equipment ratings (for new
transformers)
C.2 Determination of insulation dryness
C.3 Shipping Terminology
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