1823026

IEEE C57.12.40-2011

IEEE Standard for 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)

standard by IEEE , 01/25/2012

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Full Description

Scope

This standard covers certain electrical, dimensional, and mechanical characteristics and takes into consideration certain safety features of three-phase, 60-Hz, liquid-immersed, self-cooled, network transformers with a primary grounding switch. These transformers are rated 2500 kVA and below with high voltages of 34 500GrdY/19 920 volts and below. These transformers are generally used for step-down purposes from underground primary cables and supply a secondary network system through network protectors. These transformers are typically installed below ground level.

Purpose

This standard is intended for use as a basis for establishing the performance, electrical and mechanical interchangeability, safety of the equipment covered, and to assist in the proper selection of such equipment.

Abstract

Revision Standard - Superseded.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.
 

Product Details

Published:
01/25/2012
ISBN(s):
9780738171913, 9780738171104
Number of Pages:
34
File Size:
1 file , 550 KB
Redline File Size:
2 files , 1.3 MB
Product Code(s):
STDSU97198, STDSURL97198
Note:
This product is unavailable in Russia, Belarus
 

Document History

  1. IEEE 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)

    • Most Recent

  2. IEEE C57.12.40-2011

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    IEEE Standard for 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)

    • Historical Version

  3. IEEE C57.12.40-2006


    IEEE Standard for Requirements for Secondary Network Transformers, Subway and Vault Types (Liquid-Immersed)

    • Historical Version