GB/T 12668.2-2025Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for adjustable speed AC power drive systems (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 2 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 AC Speed-Regulating Electrical Drive Systems;

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

---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 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 12668.2-2002 "Speed-regulating electrical drive systems - Part 2: General requirements - Low-voltage AC frequency conversion electrical drives".

The specifications for rated values of transmission systems and GB/T 12668.4-2006 "Speed-regulating electrical transmission systems - Part 4: General requirements - AC voltage" are required.

"Specifications for Rated Values of AC Speed-Regulating Electrical Drive Systems Above 1000V but Not Exceeding 35kV". This document is based on GB/T 12668.2-Based primarily on GB/T 12668.4-2006, this version integrates the content of GB/T 12668.4-2006.Compared to GB/T 12668.2-2002, aside from structural adjustments and editorial changes...

Aside from the modifications, the main technical changes are as follows.

a) The "Range" has been changed from "Input AC power supply voltage below 1kV" to "Input AC power supply voltage 35kV and below" (see...).

Chapter 1, GB/T 12668.2-2002, section 1.1);

b) The "Terms and Definitions" section has been revised to include the basic definitions used in GB/T 12668 (see Chapter 3, GB/T 12668.2-).

Chapter 2 (2002)

c) Added "Basic Drive Module (BDM)/Complete Drive Module (CDM)/Electrical Drive System (PDS) Specifications and Compliance Methods" the regulations for "South" (see Chapter 4);

d) A general principle for "Performance and Functionality Guidelines" has been added (see 5.1);

e) Added specifications for "BDM/CDM/PDS characteristics and topology" (see 5.2);

f) The relevant provisions regarding "rated values" have been changed (see 5.3, Chapter 5 of GB/T 12668.2-2002);

g) The performance requirements have been changed (see 5.4, Chapters 3 and 6 of GB/T 12668.2-2002);

h) Added "Electrical safety, functional safety, electromagnetic compatibility, eco-design, environmental assessment, duty cycle, communication standards, and power" Requirements for "interface voltage, interface of the driven equipment, explosive atmosphere, and grounding" (see 5.5~5.8 and 5.10~5.15);

i) The requirements for "Environmental conditions for operation, transportation and storage" have been changed (see 5.9, Chapter 4 of GB/T 12668.2-2002);

j) The provisions for "Testing Requirements" have been amended to provide a clear relationship between design requirements and testing requirements (see Chapter 6, Chapter 7 of GB/T 12668.2-2002);

k) The requirements for "Information and Identification" have been changed (see Chapter 7, Chapters 8 and 9 of GB/T 12668.2-2002).

This document is modified to adopt IEC 61800-2:2021 "Motor drives for speed regulation - Part 2: General requirements - AC motor drives for speed regulation".

"System Ratings Specifications".

The technical differences between this document and IEC 61800-2:2021, and the reasons therefor, are as follows.

---IEC 60721-3-1:1997 has been replaced with the normatively referenced GB/T 4798.1-2019 (see Tables 16 and 5.9.5).

The consistency relationship between GB/T 4798.1-2019 and IEC 60721-3-1:2018 is equivalent, in order to adapt to my country's technical conditions.

Add components to increase operability;

---IEC 60721-3-2:1997 has been replaced with the normatively referenced GB/T 4798.2-2021 (see Tables 16 and 5.9.4).

The consistency relationship between GB/T 4798.2-2021 and IEC 60721-3-2:2018 is equivalent, in order to adapt to my country's technical conditions.

Add components to increase operability;

---IEC 60721-3-3:1994 and IEC 60721-3-3:1994 have been replaced by the normatively referenced GB/T 4798.3-2023.

AMD1.1995 and IEC 60721-3-3:1994/AMD2.1996 (see Tables 12, 5.9.2.2.2, 5.9.2.2.3 and 17).

The consistency relationship between GB/T 4798.3-2023 and IEC 60721-3-3:2019 is equivalent, in order to adapt to my country's technical conditions.

Add components to increase operability;

---IEC 60721-3-4:1995 and IEC 60721-3-4:1995/ have been replaced by the normatively referenced GB/T 4798.4-2023.

AMD1.1996 (see Tables 12, 5.9.2.2.2, 5.9.2.2.3 and Table 17), GB/T 4798.4-2023 and IEC 60721-3-4.

The consistency between 2019 and 2019 is equivalent, in order to adapt to my country's technical conditions and increase operability;

---Changes have been made to "Operating Climate Conditions", "Operating Conditions and Requirements for Mechanical Equipment", "Climatic Conditions for Equipment Storage and Transportation", and "Mechanical Conditions".

"Specific storage hazards" and "environmental operation tests" are required to adapt to my country's technical conditions (see 5.9.2.1, 5.9.2.2, 5.9.2.3 and...).

5.9.3~5.9.6).

The following editorial changes have been made to this document.

---Added Appendix C (informative) to Chinese standards that have a consistent correspondence with IEC 60034 (all parts);

---Added Appendix D (informative) to Chinese standards that correspond to IEC 61800-7 (all parts).

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Technical Committee on Standardization of Power Electronic Systems and Equipment (SAC/TC60).

Introduction

GB/T 12668 provides a series of general specifications for speed-regulating electric drive systems, which are proposed to consist of nineteen 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 entire DC electric drive system is defined by the performance of the drive system, rather than by 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 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. The purpose is to specify the electrical, thermal, and energy requirements for speed-regulating electric drives or their components.

Requirements related to air, heat and energy safety.

---Part 5-2.Functional Safety Requirements. The purpose is to specify, from a functional safety perspective, the requirements for electrical drive systems (safety phases).

Design, development, integration, and verification of (related 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 701: 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.

Speed-regulating electrical drive systems - Part 2: General requirements Specifications for Rated Values of AC Speed-Regulating Electrical Drive Systems

1 Scope

This document applies to AC speed-regulating electric drive systems, which include semiconductor power conversion and its control, protection, monitoring, measurement, and AC...

Flow motor.

This document applies to AC speed-regulating electrical drive systems that power AC motors. It specifies the connection between the basic drive module and the complete drive module.

Up to 35kV and below, 50Hz or 60Hz AC power supply voltage (line voltage), and/or connected to 1.5kV and below DC power supply.

Voltage.

Note. GB/T 12668.1 covers DC speed-regulating electrical drive systems that power DC motors.

This document specifies and describes, in a non-exhaustive manner, the performance and functional attributes for selecting basic drive modules/complete drive modules/electric drive systems.

List of guidelines. This list is reviewed by stakeholders to identify design considerations for devices, equipment, or systems with relevant testing specifications.

This document also provides options for selecting performance and functional attributes of transmission equipment and extended products. Performance and functional attributes mainly include the following categories.

---The topology of the main components of an electric drive system and the classification of electric drive systems;

--- Ratings, performance, and functionality;

---Environmental specifications for the intended installation and operation of the electrical drive system;

---Other applicable specifications may apply when defining the overall electrical drive system.

Traction products and electric vehicles are not covered by this document.

This document provides a non-exhaustive list. Depending on application requirements, this list can be used to establish minimum requirements between customers and manufacturers.

Seeking standards. Can manufacturers, without prior interaction with customers, define the application conditions of basic drive modules/complete drive modules/electric drive systems?

In this case, this list is used to determine the minimum requirements for commercially available basic drive modules/complete drive modules/electric drive systems.

This document briefly introduces and references certain aspects covered by the specific electrical drive system product standard in GB/T 12668.

The detailed requirements in these product standards.

GB/T 12668 applies to the following aspects.

GB/T 12668.3 covers electromagnetic compatibility requirements;

GB/T 12668.501 covers general safety requirements;

GB/T 12668.502 covers functional safety requirements;

GB/T 12668.6 covers the guidelines for duty cycle types;

---GB/T 12668.701, GB/T 12668.7201, GB/T 12668.7202, GB/T 12668.7301 and GB/T 12668.7302 covers the requirements for interfaces and usage specifications;

GB/T 12668.8 covers the specifications for power interface voltages;

GB/T 12668.901 and GB/T 12668.902 cover the eco-design energy efficiency requirements for transmission systems.

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.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 2423.5-2019 Environmental Testing – Part 2: Test Methods – Test Ea and Guidelines. Impact (IEC 60068-2-27)