IEEE C57.12.40-1990
SECONDARY NETWORK TRANSFORMERS - SUBWAY AND VAULT TYPES (LIQUID IMMERSED) - REQUIREMENTS (Now Copyrighted by NEMA)

Standard No.

IEEE C57.12.40-1990

Release Date

1990

Published By

IEEE - The Institute of Electrical and Electronics Engineers@ Inc.

Status

Be replaced 2006-09

Replace By

IEEE C57.12.40-2000

Latest

IEEE C57.12.40-2011

IEEE C57.12.40-1990 history

• 2011 IEEE 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 C57.12.40-2006 Standard Requirements for Secondary Network Transformers@ Subway and Vault Types (Liquid Immersed)
• 2000 IEEE C57.12.40-2000 Secondary Network Transformers Subway and Vault Types (Liquid Immersed)Requirements (Replaces NEMA C57.12.40-2000)
• 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)