GB/T 17948.4-2024 Active National standards

GB/T 17948.4-2024 Rotating electrical machines—Functional evaluation of insulation systems(TypeⅡ)—Procedures for form-wound windings—Electrical endurance qualification

Publish Date: 2024-08-23 Implement Date: 2025-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 17948.4-2024

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Rotating motor

ICS Name: Rotating motor comprehensive

Publish Date: 2024-08-23

Implement Date: 2025-03-01

Pages: 28 pages

Scope

This document specifies the qualification procedures for evaluating the electrical durability of the insulation structure of a molded winding rotating motor powered by sinusoidal power frequency voltage.
For the primary insulation, this test procedure is essentially comparative, comparing the performance of the insulation structure to be evaluated with that of a reference insulation structure verified by operational experience. If no reference insulation structure is available, use the charts in Appendix A. The qualification procedures for the insulation structure of a molded winding powered by a frequency converter are described in GB/T 22720.2—2019 or IEC 60034-18-41. Appendix B proposes and defines new and informative anti-corona structure test procedures.

Development Information

Word Count: 37 Thousand words Pages: 28 pages

Replace the following standards

GB/T 17948.4-2016 Rotating electrical machines—Functional evaluation of insulation systems—Test procedures for form-wound windings—Evaluation by electrical endurance

Referenced Standards

GB/T 17948.5-2016 Rotating electrical machines—Functional evaluation of insulation systems—Test procedures for form-wound windings—Multifactor evaluation by endurance under simultaneous thermal and electrical stresses GB/T 22715-2016 Impulse voltage withstand levels of form-wound stator coils for rotating a.c.machines GB/T 22720.2-2019 Rotating electrical machines—Qualification tests for the partial discharge resistant electrical insulation systems(Type Ⅱ) used in rotating electrical machines fed from voltage converters IEC 60034-1 IEC 60034-18-1 IEC 60034-18-41IEC 60034-27-1 IEC 60034-27-3 IEC 62539

Adopt standards

IEC 60034-18-32:2022

Related Standards

GB/T 7346-1998 Replaced

GB/T 7346-1998 Basic outline constructional type for control motors and feedback components

Publish Date: 1998-01-19

GB/T 4772.1-1999 Replaced

GB/T 4772.1-1999 Dimensions and output series for rotating electrical machines—Part 1:Frame numbers 56 to 400 and flange numbers 55 to 1080

Publish Date: 1999-02-26

GB/T 4772.2-1999 Active

GB/T 4772.2-1999 Dimensions and output series for rotating electrical machines— Part 2:Frame numbers 355 to 1000 and flange numbers 1180 to 2360

Publish Date: 1999-02-26

GB/T 4772.3-1999 Active

GB/T 4772.3-1999 Dimensions and output series for rotating electrical machines— Part 3:Samll built-in motors flange numbers BF10 to BF50

Publish Date: 1999-02-26

GB 10068-2000 Replaced

GB 10068-2000 Mechanical vibration of certain machines with shaft heights 56mm and higher—Measurement,evaluation and limits of vibration

Publish Date: 2000-01-03

GB/T 17948.1-2000 Replaced

GB/T 17948.1-2000 Rotating electrical machines—Functional evaluation of insulation systems—Test procedures for wire-wound windings—Thermal evaluation and classification

Publish Date: 2000-01-03