IEEE - Institute of Electrical and Electronics Engineers, Inc. - C37.121-1989

American National Standard for Switchgear - Unit Substations - Requirements

superseded - Reaffirmed , Superseded by
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Organization: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 22 February 1989
Status: superseded
Page(s): 1 - 34
ICS Code (High voltage switchgear and controlgear): 29.130.10
ISBN (Electronic): 978-0-7381-3619-6
DOI: 10.1109/IEEESTD.1989.95623
Standard:

This standard covers the requirements for three-phase unit substations for step-down operation in the range of 112.5 kVA through 10 000 kVA at primary voltages of 601 volts through 38 kilovolts.... View More

Document History

IEEE Draft Guide for Switchgear - Unit Substation - Requirements
The basis for the coordination of equipment in unit substations by assisting in the selection of components is intended as the use of this guide. A variety of designs for unit substations are...
February 22, 2013
IEEE Guide for Switchgear - Unit Substation - Requirements - Redline
The basis for the coordination of equipment in unit substations by assisting in the selection of components is intended as the use of this guide. A variety of designs for unit substations are...
February 22, 2013
IEEE Guide for Switchgear - Unit Substation - Requirements
The basis for the coordination of equipment in unit substations by assisting in the selection of components is intended as the use of this guide. A variety of designs for unit substations are...
March 23, 2012
IEEE Draft Guide for Switchgear - Unit Substation - Requirements
This Guide for Switchgear-Unit Substation-Requirements is intended for use as the basis for the coordination of equipment in Unit Substations by assisting in the selection of components. A variety of...
C37.121-1989
February 22, 1989
American National Standard for Switchgear - Unit Substations - Requirements
This standard covers the requirements for three-phase unit substations for step-down operation in the range of 112.5 kVA through 10 000 kVA at primary voltages of 601 volts through 38 kilovolts. The...
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