GB/T 12668.3-2025Adjustable speed electrical power drive systems - Part 3: EMC requirements andspecific test methods for PDS and machine tools (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents". Drafting.

This document is Part 3 of GB/T 12668 "Speed-regulating electrical drive systems". GB/T 12668 has already published the following parts.

---Part 1: General Requirements - Specifications for Ratings of Low-Voltage DC Speed-Regulating Electrical Drive Systems;

---Part 2: General Requirements - Specifications for Ratings of Low-Voltage AC Variable Frequency Electrical Drive Systems;

---Part 3: Electromagnetic compatibility requirements for electrical drive systems and machine tools and specific test methods;

---Part 4: Rated AC speed-regulating electric drive systems with AC voltage generally above 1000V but not exceeding 35kV Value specification;

---Part 5-1: Safety Requirements for Electrical, Thermal, and Energy;

---Part 5-2: Safety Requirements Functions;

---Part 6: Guidelines for determining load duty cycle type and corresponding current rating;

---Part 701: General Interfaces and Usage Specifications for Electrical Drive Systems;

---Part 7-201: General Interfaces and Usage Specifications for Electrical Drive Systems, Type 1 Specification Description;

---Part 7-202: General Interfaces and Usage Specifications for Electrical Drive Systems, Type 2 Specification Description;

---Part 7-301: General Interfaces and Usage Specifications for Electrical Drive Systems Type 1 Specification Corresponds to Network Technology;

---Part 7-302: General Interfaces and Usage Specifications for Electrical Drive Systems Type 2 Specification Corresponding to Network Technology;

---Part 8: Voltage Specifications for Power Interfaces;

---Part 9-1: Eco-design of electrical drive systems, motor starters, power electronic equipment and their drive applications adopts extended The Product Energy Management Act (EPA) and the Semi-Analytical Model (SAM) are used to establish general requirements for energy efficiency standards for electrical drive equipment;

---Part 9-2: Eco-design of electrical drive systems, motor starters, power electronic equipment and their drive applications Electrical Drives Energy efficiency indicators for the system and motor starter.

This document replaces GB/T 12668.3-2012 "Speed-regulating electrical drive systems - Part 3: Electromagnetic compatibility requirements and specific test requirements".

Compared with GB/T 12668.3-2012, the main technical changes in the "Test Methods" are as follows, except for structural adjustments and editorial modifications.

a) Added relevant content on "machine tools" (see Chapter 1, 4.2, 5.1, 5.2.4, 6.2, and 6.4.1.4);

b) Terms and definitions have been added and changed (see Chapter 3, Chapter 3 of the 2012 edition);

c) The requirements for the "Test Report" have been changed (see 4.2.2, 2012 version 4.2.2);

d) The requirements of the "Performance (Acceptance) Criteria" have been changed (see 5.1.1, 2012 version 5.1.1);

e) The provisions regarding "Test Conditions" have been amended (see 5.1.2, 5.1.3 in the 2012 version);

f) The requirements in "Basic Immunity Requirements - Low Frequency (< 150kHz) Disturbances" have been revised (see 5.2, 2012 version 5.2);

g) The requirements for "Basic Immunity Requirements - High Frequency (>=150kHz) Interference" have been revised (see 5.3, 2012 version 5.3);

h) The requirement for "Application of immunity requirements - Alternative verification methods" has been changed (see 5.4, 2012 version 5.4);

i) The provisions of "General Launch Requirements" have been amended (see 6.1, 2012 version 6.1);

j) The requirements for the "basic low-frequency (< 150kHz) emission limit" have been changed (see 6.3, 6.2 in the 2012 edition);

k) The requirements for "Conditions related to high-frequency (>=150kHz) emission measurements" have been changed (see 6.4, 6.3 in the 2012 edition);

l) The requirements for "Basic High-Frequency Emission Limits" have been changed (see 6.5, 6.4 in the 2012 edition);

m) The requirements for "Engineering Design Practice" have been changed (see 6.6, 6.5 in the 2012 edition).

This document is equivalent to IEC 61800-3:2022 "Regulated electric drives - Part 3: Electromagnetic compatibility of electric drives and machine tools". Capacity requirements and specific test methods.

Introduction

GB/T 12668 provides a series of general specifications for speed-regulating electric drive systems. It is proposed to consist of the following parts.

---Part 1: General Requirements - Specifications for Ratings of Low-Voltage DC Speed-Regulating Electrical Drive Systems. The purpose is to provide a specification for the ratings of DC electrical drive systems.

The performance of the drive system should be considered, rather than defining the entire DC electric drive system based on the functional units of each subsystem.

---Part 2: General Requirements for Ratings of AC Speed-Regulating Electrical Drive Systems. The purpose is to specify the ratings for the electrical drive system.

The entire AC speed-regulating electric drive system is defined by its performance, rather than by the functional units of each subsystem.

---Part 3: Electromagnetic Compatibility Requirements for Electrical Drive Systems and Machine Tools and Specific Test Methods. The purpose is to specify the electromagnetic compatibility requirements for electrical drive systems and machine tools.

Electromagnetic compatibility requirements for transmission systems and machine tools and their specific test methods.

---Part 5-1: Safety Requirements - Electrical, Thermal, and Energy Safety. The purpose is to specify the requirements for speed-regulating electric drive systems or their components. Requirements related to electrical, thermal, and energy safety.

---Part 5-2: Safety Requirements - Functional Safety. The purpose is to specify the functional safety requirements for electrical drive systems. Design, development, integration, and verification of all relevant components.

---Part 5-3: Safety Requirements This section specifies the functional, electrical, and environmental safety requirements for encoders. The purpose is to define the safety requirements for encoder functions. Energy, electrical and environmental safety requirements.

---Part 6: Guidelines for determining load duty cycle type and corresponding current rating. The purpose is to specify the requirements for speed-regulating electric drive systems.

In particular, the ratings of its basic drive module offer alternative methods.

---Part 7-1: General Interfaces and Usage Specifications for Electrical Drive Systems. The purpose is to define the interfaces for electrical drive systems.

The application specifications are explained, and their application in current communication systems is illustrated through the use of a general interface model.

---Part 7-201: General Interfaces and Usage Specifications for Electrical Drive Systems (Type 1 Specification Description). The purpose is to establish... Type 1 specification for dynamic systems. Type 1 specifications can be mapped to different communication network technologies.

---Part 7-202: General Interfaces and Usage Specifications for Electrical Drive Systems (Type 2 Specification Description). The purpose is to establish... Type 2 specification for dynamic systems. Type 2 specification can be mapped to different communication network technologies.

---Part 7-203: General Interfaces and Usage Specifications for Electrical Drive Systems (Type 3 Specification Description). The purpose is to establish... The three types of specifications for dynamic systems can be mapped to different communication network technologies.

---Part 7-204: General Interfaces and Usage Specifications for Electrical Drive Systems (Type 4 Specification Description). The purpose is to establish... The four types of specifications for dynamic systems can be mapped to different communication network technologies.

---Part 7-301: General Interfaces and Usage Specifications for Electrical Drive Systems. Type 1 specification corresponds to network technology. The purpose is to... Establish the mapping relationship between Type 1 specifications and different network technologies.

---Part 7-302: General Interfaces and Usage Specifications for Electrical Drive Systems (Type 2 specification) corresponds to network technology. The purpose is to... Establish the mapping relationship between Type 2 specifications and different network technologies.

---Part 7-303: General Interfaces and Usage Specifications for Electrical Drive Systems (Type 3 Specification) corresponds to network technology. The purpose is to... Establish the mapping relationship between the three types of specifications and different network technologies.

---Part 7-304: General Interfaces and Usage Specifications for Electrical Drive Systems. This 4-type specification corresponds to network technology. The purpose is to... Establish the mapping relationship between the four types of specifications and different network technologies.

---Part 8: Voltage Specifications for Power Interfaces. The purpose is to provide a method for determining the power interface voltage of electrical drive systems.

---Part 9-1: Eco-design of electrical drive systems, motor starters, power electronic equipment and their drive applications adopts extended The Product Energy Management Act (EPA) and the Semi-Analytical Model (SAM) establish general requirements for energy efficiency standards for electrical drive equipment. The aim is to address... All extended products that utilize the extended product law define a general approach to energy efficiency standards.

---Part 9-2: Eco-design of electrical drive systems, motor starters, power electronic equipment and their drive applications Electrical Drives Energy efficiency indicators for systems and motor starters. The purpose is to specify the energy efficiency indicators for complete power electronic equipment drive modules, electrical drive systems, and... Energy efficiency indicators of motor starters and all driven equipment.

1 Scope

This document specifies the electromagnetic compatibility (EMC) requirements for speed-regulating electric drive systems and machine tools (MT). Electric drive systems (PDS) are... This includes AC or DC motor drives, including those with electronic converters. These electromagnetic compatibility requirements apply to the input and/or output voltages (line voltages).

This document specifies the RMS value for AC and DC electrical drive systems and machine tools of 35kV and below. It applies to all power ratings. Level-one equipment.

As a product electromagnetic compatibility standard, this document can be used to evaluate electrical drive systems and machine tools. It can also be used to evaluate complete drive systems. Module or basic transmission module.

Note 1. Basic drive modules and complete drive modules are part of the electrical drive system and are usually sold separately.

Traction products and electric vehicles, as well as "Group 2 equipment" as defined in CISPR 11:2024, are not included in this document.

Note 2. Examples of devices in Group 2 include.

---Welding equipment (arc welding, resistance welding, etc.);

---Electrical Discharge Machining Equipment.

This document does not specify requirements for motors in electric drive systems that convert electrical energy to mechanical energy. The IEC 60034 series already covers these requirements.

Requirements for rotating electrical machines. In this document, the term "electric machine" is used to describe electric motors, including rotary or linear motors, as well as non-rotary motors. Motors with the same power transmission direction.

This document applies to basic drive modules, complete drive modules, electrical drive systems, and machine tools, with or without radio functionality. However... Yes, this document does not specify any requirements for radio transmission and reception.

Note 3. CISPR 11:2024 sets forth requirements for radio transmission and reception, which also apply to products within the scope of this document.

This document specifies the minimum requirements for transmission and immunity in the frequency range of 0Hz to 400GHz. For frequencies where requirements are not specified... No testing is required within the designated area.

The basic transmission modules, complete transmission modules, electrical transmission systems, and machine tools mentioned in this document refer to those installed in residential, commercial, and industrial applications.

The site includes basic transmission modules, complete transmission modules, electrical transmission systems, and machine tools. Requirements are given based on environmental classification.

Basic transmission modules, complete transmission modules, and electrical transmission systems are often contained within a larger system. This document does not cover... The content pertains to the system, but is explained in the informative appendix.

This document will serve as a complete product electromagnetic compatibility standard for product conformity assessment. It is applicable to basic transmission modules, complete transmission modules, and electrical... Electromagnetic compatibility standards for pneumatic transmission systems and machine tools, in accordance with IEC Guide 107, take precedence over all aspects of general standards.

Note 4. If the electrical drive system or machine tool is part of a separate product electromagnetic compatibility standard, then that electromagnetic compatibility standard applies. The entire equipment.

Note 5. These requirements were selected to ensure that electrical drive systems and machine tools in residential, commercial, and industrial settings meet electromagnetic compatibility (EMC) standards. No consideration is given to electrical... Changes in electromagnetic compatibility caused by fault conditions in transmission systems or machine tools.

Note 6. This document does not specify any safety requirements for the equipment, such as protection against electric shock, insulation coordination and related insulation tests, unsafe operation, or malfunctions.

Unsafe effects. This document also does not cover the potential impacts of electromagnetic phenomena on safety and functional safety.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.