IEEE C37.123-1991
Guide to Specifications for Gas-Insulated Substation Equipment

Standard No.

IEEE C37.123-1991

Release Date

1991

Published By

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

Status

Be replaced 2016-05

Replace By

IEEE C37.123-1996

Latest

IEEE C37.123-2016

Scope

This guide covers the technical requirements for the design@ fabrication@ testing@ and installation of a gas-insulated substation (GIs). The manufacturer shall furnish all work necessary to provide the complete GIS as shown on the functional one-line diagram@ which may consist of circuit breakers (CBI@ disconnect switches (DS)@ maintenance ground switches (MGS)@ fast-acting ground switches (FGS)@ voltage transformers (VT)@ current transformers (CT)@ SF6-to-air bushings@ buses@ cable pothead enclosures@ transformer or reactor bushing enclosures@ enclosed surge arresters@ elbows@ bellows@ controls@ and supporting structures in applicable numbers. All equipment and material shall be prefabricated@ factory assembled@ tested@ and shipped in the largest practical assemblies. The assembled equipment shall be capable of withstanding electrical@ mechanical@ and thermal ratings of the specified system. All joints and connections shall be able to withstand the forces of expansion@ vibration@ contraction@ and specified seismic requirements without deformation@ malfunction@ and leakage. The equipment shall be capable of withstanding the specified outdoor or indoor environment. Optimized arrangements are required to reduce installation time@ provide ease of operations@ minimize maintenance and repair costs@ and facilitate future additions as described in the specifications. The proposal shall include recommended spare parts for reduced outage time in case of a fault@ and delivery time in case of emergency. Field assembly costs and maintenance costs will be considered in bid evaluations. In order to elicit a complete and uniform response from each bidder@ Section 4@ Proposal Data@ is provided.

IEEE C37.123-1991 history

• 2016 IEEE C37.123-2016 Guide for Specifications for High-Voltage Gas-Insulated Substations Rated 52 kV and Above
• 1997 IEEE C37.123-1997 Guide to Specifications for Gas-Insulated@ Electric Power Substation Equipment
• 1996 IEEE C37.123-1996 Guide to Specifications for Gas- Insulated@ Electric Power Substation Equipment
• 1991 IEEE C37.123-1991 Guide to Specifications for Gas-Insulated Substation Equipment