Language:
    • Available Formats
    • Options
    • Availability
    • Priced From ( in USD )

Customers Who Bought This Also Bought

 

About This Item

 

Full Description

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.

Purpose

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.

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Revision Standard - Superseded.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.
 

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


    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

    👀currently
    viewing


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

    • Historical Version