IEEE Std C57.12.40-2017
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)
- Standard No.
- IEEE Std C57.12.40-2017
- Release Date
- 2017
- Published By
- Institute of Electrical and Electronics Engineers (IEEE)
- Latest
- IEEE Std C57.12.40-2017
- Scope
- 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.
IEEE Std C57.12.40-2017 history
- 2017 IEEE Std C57.12.40-2017 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)
- 2011 IEEE Std C57.12.40-2011 Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/ 19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)
- 2006 IEEE Std C57.12.40-2006 Secondary network transformers, subway and vault types (Liquid immersed)
- 1970 IEEE Std C57.12.40-2000 American National Standard for Secondary Network Transformers Subway and Vault Types (Liquid Immersed)-Requirements
- 1990 IEEE C57.12.40-1990 SECONDARY NETWORK TRANSFORMERS - SUBWAY AND VAULT TYPES (LIQUID IMMERSED) - REQUIREMENTS (Now Copyrighted by NEMA)
- 1982 IEEE C57.12.40-1982 REQUIREMENTS FOR SECONDARY NETWORK TRANSFORMERS@ SUBWAY AND VAULT TYPES (LIQUID IMMERSED)
