GOST 21558-2018 PDF

Full title and description

GOST 21558-2018 — "Excitation systems for turbogenerators, hydrogenerators and synchronous compensators. General specifications" (Russian: «Системы возбуждения турбогенераторов, гидрогенераторов и синхронных компенсаторов. Общие технические условия»). The standard establishes general technical requirements for excitation systems designed to supply and regulate field excitation current of synchronous turbogenerators, hydrogenerators, generator-motors and synchronous compensators in normal and emergency modes.

Abstract

GOST 21558-2018 updates and consolidates technical requirements, normative references and performance criteria for generator excitation systems (including modern microprocessor-based regulators and power converters). It provides requirements for design, electrical characteristics, control and protection functions, testing, and documentation; the standard is intended to be used in design, manufacture, acceptance testing and certification of excitation systems.

General information

• Status: Active — adopted as an interstate (GOST) standard and introduced as a national standard in Russia and other CIS members that voted for adoption.
• Publication date: Approved 29 January 2019; introduced (date of entry into force) 1 June 2019.
• Publisher: Adopted by the Interstate Council for Standardization, Metrology and Certification; introduced in Russia by the Federal Agency on Technical Regulation and Metrology (Rosstandart).
• ICS / categories: 29.160.20 (rotating electrical machines; excitation systems).
• Edition / version: 2018 edition (GOST 21558-2018), replaces and updates GOST 21558-2000.
• Number of pages: Approximately 24 pages (official publication formats list 22–24 pages depending on publisher; common commercial copies indicate 24 pages).

Scope

The standard applies to excitation systems intended to provide automatically regulated direct-current excitation to synchronous turbogenerators, hydrogenerators, generator-motors and synchronous compensators manufactured to applicable generator standards (for example, GOST/IEC 60034 series and related national standards). It covers functional and safety requirements, electromagnetic and thermal performance limits, control and protection features (including automatic voltage regulation and emergency regimes), documentation, and test procedures relevant to design, manufacture, installation and certification.

Key topics and requirements

• Functional classification and intended applications of excitation systems (turbogenerator, hydrogenerator, synchronous compensator, generator-motor).
• Requirements for automatic voltage regulation (AVR) performance, including strong-action (fast) AVR characteristics and stability considerations for power system interaction.
• Electrical and thermal ratings of excitation power converters and load capability of individual power electronic units.
• Requirements for microprocessor-based control and protective functions, including firmware, measurement inputs, and communication interfaces.
• Protection, safety and electromagnetic compatibility requirements to ensure safe operation in normal and emergency modes.
• Factory and site testing, acceptance tests, and required documentation (technical description, test reports, maintenance instructions).
• Normative references and conformity with related generator and rotating-machine standards.

Typical use and users

Primary users are generator and excitation-system manufacturers, power-plant equipment designers and integrators, utilities and power system operators, testing laboratories and certification bodies, and field service/maintenance organizations. The standard is used for design specification, procurement requirements, factory acceptance testing, commissioning and regulatory certification of excitation equipment.

Related standards

GOST 21558-2018 references and aligns with other national and international standards for rotating electrical machines and excitation: previous edition GOST 21558-2000; national adoptions of IEC 60034 series (GOST IEC 60034-1, GOST IEC 60034-3) and other machine/electrotechnical norms governing climatic design, EMC, testing methods and safety. It is intended to be used in conjunction with those documents when specifying generator and excitation-system requirements.

Keywords

excitation system, excitation, AVR, turbogenerator, hydrogenerator, synchronous compensator, synchronous generator, generator control, power converter, protection, GOST 21558-2018.

FAQ

Q: What is this standard?

A: GOST 21558-2018 is the 2018 interstate (GOST) standard that sets general technical specifications for excitation systems of turbogenerators, hydrogenerators and synchronous compensators.

Q: What does it cover?

A: It covers functional requirements, performance and safety criteria, control and protection functions (including automatic voltage regulation), testing and documentation requirements for excitation systems used in power-generating equipment.

Q: Who typically uses it?

A: Manufacturers of excitation systems and synchronous machines, power plant engineers and operators, certification bodies, testing laboratories, and system integrators use this standard for specification, acceptance testing and certification.

Q: Is it current or superseded?

A: Current — GOST 21558-2018 replaced the earlier GOST 21558-2000 and was approved on 29 January 2019 with an entry-into-force date of 1 June 2019 for the adopting states.

Q: Is it part of a series?

A: It is an independent GOST (interstate) standard but is intended to be used alongside related GOST/IEC standards for rotating electrical machines (for example, national adoptions of IEC 60034 series) and other normative documents governing testing, climatic categories and EMC.

Q: What are the key keywords?

A: Excitation system, AVR, turbogenerator, hydrogenerator, synchronous compensator, generator control, power converter, protection, testing, certification.