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Historical Revision

IEEE C57.12.40-2006

IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)
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IEEE C57.12.40-2006

IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)

PUBLISH DATE 2006
PAGES 25
IEEE C57.12.40-2006
Revision Standard - Superseded. This standard is intended for use as a basis for establishing the performance,interchangeability, and safety of the equipment covered and to assist in the proper selection of such equipment.
This standard is intended for use as a basis for establishing the performance, interchangeability, and safety of the equipment covered and to assist in the proper selection of such equipment.
This standard covers certain electrical, dimensional, and mechanical characteristics and takes into consideration certain safety features of three-phase, 60 Hz, liquid-immersed, secondary network transformers with a three-position grounding switch, subway and vault types, rated 2500 kVA and smaller; primary 34 400 V and below; secondary 216Y/125 V and 480Y/277 V. A subway-type network transformer is one that is suitable for frequent or continuous submerged operation. A vault-type network transformer is one that is suitable for occasional submerged operation.
SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number C57.12.40
Publication Date Sept. 15, 2006
Language en - English
Page Count 25
Revision Level
Supercedes
Committee Transformers
Publish Date Document Id Type View
Aug. 9, 2024 C57.12.40-2024 Revision
Aug. 31, 2017 C57.12.40-2017 Revision
Jan. 25, 2012 C57.12.40-2011 Revision
Sept. 15, 2006 C57.12.40-2006 Revision
Dec. 31, 2000 C57.12.40-2000 Revision