IEC 62271-101-2021 PDF

Full title and description

St IEC 62271-101-2021 — High-voltage switchgear and controlgear — Part 101: Synthetic testing. This standard gives the general rules, methods and evaluation criteria for performing synthetic (simulated) tests on high-voltage AC circuit-breakers so that synthetic results are demonstrably equivalent to direct (full-power) tests.

Abstract

IEC 62271-101:2021 (edition 3.0) applies primarily to AC circuit-breakers within the scope of IEC 62271-100 and provides the procedures, test-circuit techniques and acceptance criteria for making and breaking tests carried out by synthetic methods over the range of test duties specified in IEC 62271-100. The document updates previous editions and amendments to align with the 2021 edition of IEC 62271-100 and includes the corrigendum published in 2021.

General information

• Status: Published / Current international standard.
• Publication date: July 27, 2021.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.130.10 (High-voltage switchgear and controlgear).
• Edition / version: Edition 3.0 (2021).
• Number of pages: 311 pages.

(Publication and edition details as recorded on the IEC publication record.)

Scope

IEC 62271-101:2021 establishes rules for synthetic testing of AC circuit-breakers to determine making and breaking capabilities across the range of test duties defined in IEC 62271-100 (clauses addressing making/breaking duties). It defines required test-circuit configurations, measurement methods, processing of recorded signals, limits and acceptance criteria that demonstrate equivalence between synthetic tests and direct full-power tests; it is intended to be used together with IEC 62271-100. The standard does not replace the normative requirements of IEC 62271-100 but provides alternate validated test methods.

Key topics and requirements

• Definition and justification of synthetic testing methods as equivalent to direct testing.
• Required synthetic test circuits and recommended instrumentation (current and voltage measurement, TRV capture, timing, etc.).
• Procedures for reproducing making (making current / making capacity) and breaking duties (interrupting current, rate of rise of recovery voltage, restrike considerations).
• Signal processing, parameter extraction (e.g., Ipeak, Ieff, dV/dt, TRV characteristics) and calculation rules for test result evaluation.
• Acceptance criteria and uncertainty considerations to validate synthetic-test results against IEC 62271-100 performance requirements.
• Alignment and cross-references to IEC 62271-100 (direct test duties) and handling of amendment/corrigendum provisions.

Typical use and users

Used by high-voltage circuit-breaker manufacturers, independent test laboratories, certification and conformity assessment bodies, utilities, and design/verification engineers to qualify breaker designs, demonstrate compliance with IEC 62271-100 requirements using synthetic test methods, and to reduce the need for large direct-power test facilities while preserving test validity.

Related standards

Primary related document: IEC 62271-100 (High-voltage alternating-current circuit-breakers) — synthetic testing in 62271-101 is defined relative to the making/breaking duties specified in 62271-100. Other parts of the IEC 62271 series (for example Parts 102, 103, 104, 105, etc.) cover disconnectors, switches and other switchgear devices and are commonly used alongside Part 101 for comprehensive switchgear testing and product standards.

Keywords

synthetic testing, circuit-breaker testing, making capacity, breaking capacity, TRV, test circuit, IEC 62271, high-voltage switchgear, SC 17A, test equivalence, measurement uncertainty.

FAQ

Q: What is this standard?

A: IEC 62271-101:2021 is Part 101 of the IEC 62271 series titled "Synthetic testing" and provides general rules and criteria for performing and evaluating synthetic (simulated) tests on high-voltage AC circuit-breakers.

Q: What does it cover?

A: It covers methods, test-circuit arrangements, measurement and signal-processing techniques, and acceptance criteria for synthetic making and breaking tests that correspond to the test duties described in IEC 62271-100. It is intended to demonstrate equivalence to direct (full-power) testing.

Q: Who typically uses it?

A: Manufacturers of high-voltage circuit-breakers, independent test laboratories, certification bodies, utilities and design/verification engineers who need validated alternative test methods to full-scale direct testing.

Q: Is it current or superseded?

A: The 2021 edition (Edition 3.0) is the current edition published July 27, 2021; it replaces the 2012 edition and its amendments and corrigenda. Corrigenda published in 2021 are included in the current edition record. Users should check the IEC publications/corrigenda list for any subsequent amendments or corrigenda after July 27, 2021.

Q: Is it part of a series?

A: Yes — IEC 62271-101 is part of the IEC 62271 series (High-voltage switchgear and controlgear). It is intended to be used together with IEC 62271-100 and other parts of the series that address specific devices (e.g., Parts 102, 103, 104, 105, etc.).

Q: What are the key keywords?

A: Synthetic testing, circuit-breaker, making test, breaking test, TRV, test circuit, measurement uncertainty, IEC 62271, switchgear testing.