Overview
IEC 60349-2:2010 is an international standard published by the International Electrotechnical Commission (IEC), specifying requirements for electronic converter-fed alternating current (AC) motors used in electric traction for rail and road vehicles. This third edition revises the prior 2002 version, focusing on converter-fed AC rotating electrical machines integral to electrically propelled transport applications. Its primary aim is to standardize performance testing methods to confirm motor capabilities, ensure suitability for specific operational duties, and facilitate reliable comparison among different motor designs.
This standard is crucial for manufacturers, designers, and testing laboratories involved with traction motors, providing unified criteria for performance verification through rigorous testing protocols. It ensures interoperability and quality consistency for traction motors integrated with power electronic converters, a key technology advancing electric transportation systems worldwide.
Key Topics
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Scope and Objective
IEC 60349-2 applies specifically to AC motors supplied by electronic converters in electrically propelled rail and road vehicles, including motors on unpowered trailers. It defines methods to confirm motor performance, ensuring that the motor meets operational expectations and compatibility requirements.
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Performance Testing
The standard outlines comprehensive test categories such as type tests (including temperature rise, overspeed, vibration, and characteristic tests), routine tests conducted on every motor, and investigation tests for detailed motor analysis.
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Temperature Rise Limits
Temperature-rise tests, critical in traction motors for durability and efficiency, are clearly defined with limits for continuous and short-time overload ratings to guarantee safe operating conditions.
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Vibration and Noise Limits
Updated vibration velocity limits for traction motors are directly stated, harmonizing with IEC 60034-14. Noise measurement methods incorporate ISO standards for sound power level evaluation, enabling accurate assessment of acoustic emissions with prescribed corrections for pure tones.
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Information Exchange and Collaboration
IEC 60349-2 emphasizes coordination between motor designers and converter manufacturers to ensure compatibility and optimized performance of the motor-converter system.
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Marking and Identification
Essential information to be marked on motor nameplates and terminals facilitates traceability and installation accuracy.
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Conformance with Relevant ISO Standards
The new edition authorizes the use of ISO-compliant measurement methods alongside IEC procedures to support modern testing practices.
Applications
IEC 60349-2:2010 is primarily intended for the design, testing, and certification of electronic converter-fed AC traction motors in:
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Rail Vehicles
Including electric locomotives, multiple units, and trams where AC motors provide propulsion power controlled by electronic converters, ensuring efficient and reliable operation on railway networks.
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Road Electric Vehicles
Such as electric buses and trolleybuses using inverter-fed AC motors for traction, benefiting from standardized testing to guarantee performance and safety.
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Trailers and Special Purpose Vehicles
Motors installed on trailers hauled by powered vehicles and other specialized electrically propelled equipment (e.g., mining vehicles), ensuring consistent quality across diverse electric traction systems.
The standardized test protocols and motor characteristic definitions support manufacturers in meeting regulatory requirements and provide buyers and operators with confidence in motor performance under real operating conditions.
Related Standards
IEC 60349-2:2010 is part of the broader IEC 60349 series covering rotating electrical machines for rail and road vehicles. Relevant associated standards include:
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IEC 60349-1 – General requirements and definitions for rotating electrical machines used in electric traction.
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IEC 61377-1 and IEC 61377-3 – Guidance on testing combined motor and converter systems to avoid duplicate testing.
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IEC 60034-14 – Specifies vibration limits for rotating electrical machines, with direct reference integration into IEC 60349-2.
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ISO 3741, ISO 3743, ISO 3744, ISO 3745, ISO 9614 – ISO standards allowed for noise measurement methods, enhancing sound power level evaluations.
This standard aligns with global efforts in harmonizing electrical traction equipment testing and performance criteria, providing a foundation for innovation and interoperability in the field of electric mobility.
By complying with IEC 60349-2:2010, stakeholders in electric traction industry ensure robust verification of electronic converter-fed AC motors, supporting advancements in sustainable, efficient, and reliable rail and road electric vehicles.
Open preview (PDF)Electric traction - Rotating electrical machines for rail and road vehicles - Part 2: Electronic converter-fed alternating current motors
