IEEE C37.121-2020

IEEE Guide for Switchgear--Unit Substation--Requirements

IEEE, 03/09/2021

Publisher: IEEE

File Format: PDF

$30.00$61.00


Published:09/03/2021

Pages:40

File Size:1 file , 1.8 MB

Note:This product is unavailable in Russia, Ukraine, Belarus

This guide covers three-phase unit substations for step-down operation in the range of 112.5 kVA or greater at primary voltages of 601 V through 52 kV. This guide does not cover the following installations: a) Substations in which the transformer section is described and defined as “network,” “subway,” “vault,” or “underground” in IEEE Std C57.12.24™ [B13] and IEEE Std C57.12.40™ [B15]2 b) Substations in which the transformer section is described and defined as “pad-mounted” c) Rectifier-type substations d) Mobile unit substations e) Installations in ships, watercraft, railway rolling stock, aircraft, or automotive vehicles f) Installations for mines g) Installations of railways for generation, transformation, transmission, or distribution of power used exclusively for operation of rolling stock, or for installations used exclusively for signaling and railway communication purposes h) Installations of communication equipment that is under the exclusive control of communication utilities, located outdoors or in building spaces used exclusively for such installations i) Installations under the exclusive control of electric utilities for the purpose of communication, or metering; or for the generation, control, transformation, transmission, and distribution of electric energy located in buildings used exclusively by utilities for such purposes or located outdoors on property owned or leased by the utility or on public highways, streets, roads, etc.; or outdoors by established rights on private property

More IEEE standard pdf

IEEE C57.147-2008

IEEE C57.147-2008

IEEE Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers

$52.00 $104.00

IEEE 2600-2008

IEEE 2600-2008

IEEE Standard for Information Technology: Hardcopy Device and System Security

$67.00 $135.00

IEEE 1293-1998

IEEE 1293-1998

IEEE Standard Specification Format Guide and Test Procedure for Linear, Single-Axis, Non-Gyroscopic Accelerometers

$94.00 $188.00

IEEE C95.1-1999

IEEE C95.1-1999

IEEE Standard Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 KHz to 300 GHz

$64.00 $129.00