IEEE Std 1818-2017 PDF

Full title and description

IEEE Std 1818-2017 — IEEE Guide for the Design of Low‑Voltage Auxiliary Systems for Electric Power Substations. This guide provides recommendations and practical guidance for the design of low‑voltage AC and DC auxiliary systems used in electric power substations, covering sources, distribution, reliability considerations, load characteristics, battery and charger selection, grounding and protection of auxiliary equipment, and personnel safety related to station service systems.

Abstract

IEEE 1818-2017 is a technical guide that addresses the engineering and design decisions needed to provide reliable low‑voltage auxiliary power for substations. It considers both AC and DC subsystems from source(s) to distribution points, incorporates reliability requirements and typical load profiles, and recommends distribution methods and protective measures to ensure safe, continuous station service. The guide is intended to help power‑system and substation engineers select and size auxiliary equipment such as batteries, chargers, transfer schemes and switchgear.

General information

• Status: Active (IEEE standard / guide).
• Publication date: December 15, 2017 (board/par approval during 2017).
• Publisher: Institute of Electrical and Electronics Engineers (IEEE).
• ICS / categories: ICS 29.240.10 — Substations; Power transmission and distribution networks.
• Edition / version: IEEE Std 1818-2017 (first published edition, guide).
• Number of pages: 95 pages (approx.).

Scope

This guide covers the design of low‑voltage auxiliary systems in electric power substations, including AC distribution, DC battery systems and chargers, transfer and standby arrangements, sizing and coordination for reliability, load characterization, distribution methods, protection and basic safety measures for auxiliary equipment and personnel. It addresses station service from the source(s) through distribution points but does not replace equipment‑specific product standards.

Key topics and requirements

• Design and configuration of low‑voltage AC auxiliary distribution systems (sources, switchgear, transfer schemes).
• Design, sizing and selection of DC battery systems, chargers, and related equipment for station service.
• Reliability assessment, load characterization and methods to achieve required availability for protection/control functions.
• Distribution methods and grounding considerations for auxiliary circuits.
• Protection, personnel safety, and recommendations for integration with substation control and protection systems.

Typical use and users

Primary users are power‑system engineers, substation design engineers, utility planning and operations staff, consulting engineers, and contractors responsible for specifying and implementing station service systems. Typical uses include: preparing substation auxiliary power designs, sizing batteries and chargers, developing redundancy and transfer schemes, and ensuring auxiliary service meets reliability and safety requirements for protection and control equipment.

Related standards

Relevant and commonly referenced standards and recommended practices include IEEE Recommended Practice for Sizing Lead‑Acid Batteries for Stationary Applications (IEEE 485 series), IEEE Guide for the Design and Installation of Cable Systems in Substations (IEEE 525 series), IEEE Recommended Practice for the Design of DC Power Systems for Stationary Applications (IEEE 946), and other IEEE and IEC documents covering batteries, chargers, switchgear and substation protection. Normative references cited in procurement and design activities often include IEEE 485‑2010 and IEEE 525‑2016.

Keywords

auxiliary systems, station service, low‑voltage AC, DC battery systems, chargers, substation auxiliary distribution, reliability, load characteristics, transfer schemes, grounding, protection, IEEE 1818.

FAQ

Q: What is this standard?

A: IEEE Std 1818-2017 is a guide (technical recommended practice) for the design of low‑voltage auxiliary systems used in electric power substations, covering both AC and DC station service systems.

Q: What does it cover?

A: It covers components and design recommendations for auxiliary power from sources to distribution points, including AC distribution, DC battery systems and chargers, sizing and reliability considerations, grounding, protection and basic personnel safety guidance related to auxiliary equipment.

Q: Who typically uses it?

A: Substation and power‑system engineers, utility planners, consulting engineers and contractors involved in substation design, procurement and operation use this guide to specify and verify station auxiliary systems.

Q: Is it current or superseded?

A: As published in December 2017, IEEE 1818-2017 is listed as an active IEEE guide. Users should check IEEE or authorized distributors for any later revisions, corrigenda or amendments after 2017.

Q: Is it part of a series?

A: It is part of IEEE’s body of power and substation guidance and is commonly used alongside other IEEE recommended practices and guides that address batteries, cables, DC power design and substation equipment (for example IEEE 485, 525, 946 and related documents).

Q: What are the key keywords?

A: Auxiliary systems, low‑voltage, station service, AC distribution, DC battery, battery charger, substation, reliability, grounding, protection.