IEC 62520-2011 PDF

Full title and description

St IEC 62520-2011 — Railway applications — Electric traction — Short-primary type linear induction motors (LIM) fed by power converters. This international standard defines the object and intended use of short-primary LIMs used for propulsion in rail and road vehicle applications and establishes test-based criteria for confirming performance and suitability for a specified duty.

Abstract

IEC 62520:2011 specifies requirements and test methods that allow the performance of short-primary linear induction motors (LIM) — with the primary mounted on the vehicle and the secondary fixed to the guideway — to be confirmed by tests and to provide a basis for assessing suitability for a defined propulsion duty. The standard addresses electrical and mechanical performance verification under defined test conditions and includes guidance to support procurement, design verification and conformity assessment for LIMs driven by power converters.

General information

• Status: International Standard (active).
• Publication date: 25 May 2011.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 45.060.01 (Railway engineering; electric traction systems).
• Edition / version: Edition 1.0 (2011).
• Number of pages: 62 pages.

Scope

This standard applies specifically to short-primary type linear induction motors used for propelling rail and road vehicles, where the primary is mounted on the vehicle body or trucks and the secondary is fixed to the track and interacts with the primary only by magnetic coupling. The principal objective is to provide test methods and performance verification criteria to confirm LIM behaviour and to assess suitability for a specified duty when the LIM is fed by power converters. It does not replace vehicle-level system standards but provides component-level requirements for LIMs.

Key topics and requirements

• Definition and classification of short-primary linear induction motors for vehicle propulsion.
• Performance tests to confirm thrust, efficiency and thermal behaviour under representative operating conditions.
• Requirements for testing LIMs driven by power converters, including considerations for converter-LIM interaction.
• Mechanical mounting and interface considerations for primary on vehicle and fixed secondary on guideway.
• Criteria and procedures to assess suitability for a specified duty (acceptance and conformity testing).
• Documentation and data required to demonstrate tested performance (test reports, characteristic curves).

Typical use and users

Used by rolling-stock designers, traction system engineers, propulsion equipment manufacturers, test laboratories, procurement organizations and certification bodies involved in linear motor traction systems. Typical applications include urban transit, people movers, special rail or guided-transport systems employing short-primary LIMs where track-mounted secondaries are used.

Related standards

IEC 62520:2011 sits within the IEC 625xx railway/traction series of documents and should be considered alongside other railway equipment standards covering electromechanical machines, testing and environmental/qualification procedures. National/adopted versions (for example EN/ST adoptions) exist for some markets.

Keywords

linear induction motor; LIM; short-primary; electric traction; railway propulsion; power converters; performance testing; acceptance tests; vehicle traction; fixed secondary.

FAQ

Q: What is this standard?

A: IEC 62520:2011 is an international standard that specifies test methods and performance verification criteria for short-primary linear induction motors (LIM) used in electric traction and propelled by power converters.

Q: What does it cover?

A: It covers the configuration where the primary is mounted on the vehicle and the secondary is fixed to the track (magnetically coupled only), and it provides procedures to confirm LIM performance (thrust, thermal and electrical behaviour) and to assess suitability for a specified duty.

Q: Who typically uses it?

A: Rolling-stock and traction system designers, LIM manufacturers, independent test laboratories, procurement and certification authorities responsible for vehicle propulsion components and systems.

Q: Is it current or superseded?

A: IEC 62520 was published on 25 May 2011 and is listed as an active IEC International Standard; the IEC webstore indicates a stability date to 2030, so it is treated as current (not formally superseded) as of 25 February 2026. Users should check the IEC catalogue or national bodies for any amendments or later revisions.

Q: Is it part of a series?

A: Yes — it forms part of the broader IEC 625xx family of railway/traction standards and is related to other IEC and EN standards addressing railway electrical equipment, testing and qualification. National adoptions (EN / ST versions) exist in some countries.

Q: What are the key keywords?

A: Linear induction motor, LIM, short-primary, electric traction, power converter, performance testing, railway propulsion, acceptance testing.