IEC 61800-3:2017

Overview

IEC 61800-3:2017 - "Adjustable speed electrical power drive systems – Part 3: EMC requirements and specific test methods" is the International Electrotechnical Commission standard that specifies electromagnetic compatibility (EMC) requirements and test methods for adjustable speed AC and DC motor drive systems (Power Drive Systems, PDS). The third edition (also published as a Redline version showing changes versus the previous edition) is a technical revision. It covers PDSs with converter input and/or output voltages up to 35 kV AC RMS and updates both measurement setups and reporting requirements for EMC compliance.

Key updates in the 2017 edition

• Clarified requirements for the test report, particularly when alternative test methods are used.
• Introduced a more detailed test setup for radiated emission measurements and a 3 m measurement distance for small equipment.
• General updates and expansions in informative annexes (EMC techniques, low-frequency phenomena, filtering, installation rules, EMC planning).

Key Topics

• Scope and definitions for PDS installations, ports, interfaces and intended use.
• Immunity requirements: performance criteria for low-frequency disturbances (harmonics, commutation notches, voltage dips, unbalance, magnetic fields) and high-frequency disturbances (radiated and conducted immunity).
• Emission limits and measurement: procedures for low- and high-frequency emissions, conducted and radiated tests, and category-based requirements (equipment categories such as C1–C4 are addressed).
• Test methods and setup: detailed configurations for in-situ and laboratory measurements, cable arrangements, AMN/impedance usage, and the new 3 m radiated measurement distance for small equipment.
• Documentation and test reporting: mandatory content and clarity when multiple test methods are applicable.
• Informative annexes: practical guidance on harmonics, commutation notches, reactive power compensation, filtering, EMC planning for large installations, and user guidelines for managing high-frequency emissions.

Applications and Users

IEC 61800-3:2017 is essential for:

• Manufacturers of adjustable speed drives and converters who need to design products that meet EMC requirements.
• EMC test laboratories performing emission and immunity testing to international methods.
• System integrators and electrical engineers specifying drives for industrial, commercial or utility-connected installations up to 35 kV.
• Compliance officers and procurement teams requiring documented EMC performance and standardized test reports.
• Maintenance and commissioning engineers addressing EMC-related disturbances, harmonics, filtering and installation mitigation.

Practical uses include product design validation, type testing, site acceptance testing, EMC planning for complex installations (category C4), and guidance on filtering and reactive compensation to limit emissions and improve immunity.

Related Standards

IEC 61800-3 interfaces with other EMC and power quality standards (harmonic/voltage disturbance standards and test-method standards). For product compliance it is typically used alongside general EMC standards and national grid connection rules.