IEC 60146-1-1:2009

Overview

IEC 60146-1-1:2009 is an international standard published by the International Electrotechnical Commission (IEC) that specifies basic requirements for the performance of all semiconductor power converters and power switches utilizing electronic valve devices. The primary focus is on line-commutated converters used for converting AC power to DC and vice versa. Additionally, the standard outlines relevant requirements for other types of electronic power converters that lack dedicated product standards.

This fourth edition of IEC 60146-1-1 introduces significant updates, including revised definitions, additional terminology (notably around EMC, harmonic distortion, and insulation coordination), updated service condition tolerances, improved insulation test protocols, and new annexes. The document serves as a foundational reference for manufacturers, testing laboratories, and professionals engaged in the design, testing, and application of semiconductor power conversion equipment.

Key Topics

• Scope and Definitions: The standard establishes a common vocabulary for semiconductor converters, including clear terms for various devices and switching technologies.
• Service Conditions and Tolerances: Specifies environmental, electrical, and duty cycle conditions under which converters must operate reliably.
• Performance and Testing Requirements: Outlines general and specific requirements for the operation and testing of valve device assemblies and power conversion equipment, including insulation, EMC, and functional tests.
• EMC and Harmonic Distortion: Emphasizes the importance of electromagnetic compatibility and control of harmonic currents, aligning requirements with the IEC 61000 series.
• Insulation Coordination: Addresses safety and performance through detailed insulation tests and coordination to prevent failures.
• Markings and Identification: Requires proper equipment marking, rating plates, and clear identification for safe installation and maintenance.
• Annexes: Provides additional guidance on harmonics, protection against electric shock, and electrical environment considerations.

Applications

IEC 60146-1-1:2009 is applicable to a wide range of semiconductor power converters and power switches, particularly those not covered by dedicated product standards. Typical applications include:

• Industrial Power Conversion: Used in factories and process industries for rectifiers, inverters, and AC-DC conversion systems.
• Electric Drives: Serves as a reference for motor control and adjustable speed drives in manufacturing and building automation.
• Rail and Traction: Relevant for converters used in electric rolling stock and railway systems where direct DC conversion is required.
• Power Supplies: Applicable in the design and testing of low-voltage and high-voltage power supply units, including uninterruptible power supplies (UPS).
• Renewable Energy Systems: Supports the integration of semiconductor converters in solar and wind power conversion.
• Research and Testing Laboratories: Provides standard testing protocols and vocabulary for consistent equipment evaluation.

This standard ensures interoperability, safety, and quality across industries by providing a common baseline for the performance and assessment of semiconductor-based power conversion equipment.

Related Standards

For comprehensive application and compliance, IEC 60146-1-1 frequently references other international standards critical to the design and testing of semiconductor converters:

• IEC 61000 series: Electromagnetic compatibility (EMC) standards, including limits for harmonic distortion and EMC immunity.
• IEC 60529: Degrees of protection provided by enclosures (IP code).
• IEC 60664-1: Insulation coordination for equipment within low-voltage systems.
• IEC 61800 series: Adjustable speed electrical power drive systems, covering EMC and safety requirements.
• IEC 61140 & IEC 61204-7: Safety requirements and protection against electric shock.
• IEC 60700-1 & IEC 61954: Testing of thyristor valves for various high-voltage and static VAR applications.
• IEC 61378-1: Converter transformers, especially for applications involving power conversion equipment.

Adhering to IEC 60146-1-1:2009 facilitates compliance with these and other IEC standards, helping organizations achieve global acceptance, safe operation, and reliable performance in semiconductor power conversion applications.