GB/T 21707-2018 Active National standards

GB/T 21707-2018 Insulation specification for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors

Publish Date: 2018-06-07 Implement Date: 2019-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21707-2018

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Rotating motor

ICS Name: Rotating motor comprehensive

Publish Date: 2018-06-07

Implement Date: 2019-01-01

Pages: 14 pages

Scope

This standard provides the insulation specifications for three-phase asynchronous motors powered by frequency converters, including terms and definitions, technical requirements, and inspection rules.
This standard applies to three-phase asynchronous motors specifically designed for frequency-controlled speed regulation with a rated voltage of 1,140 V or lower.

Development Information

Word Count: 26 Thousand words Pages: 14 pages

Replace the following standards

GB/T 21707-2008 Insulation specification for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors

Referenced Standards

GB/T 4074.7-2009 Winding wires—Test methods—Part 7:Test procedure for the determination of the temperature index of enamelled winding wires GB/T 11026.4-2012 Electrical insulating materials—Thermal endurance properties—Part 4:Ageing ovens—Single-chamber ovens GB/T 17948.3-2017 Rotating electrical machines—Functional evaluation of insulation systems—Test procedures for form-wound windings—Thermal evaluation and classification of insulation systems used in rotating machines GB/T 22720.1-2017 Rotating electrical machines—Qualification and quality control tests of partial discharge free electrical insulation systems(TypeⅠ) used in rotating electrical machines fed from voltage converters IEC 60034-18-42 GB/T 5591.3-2008 Combined flexible materials for electrical insulation—Part 3:Specifications for individual materials GB/T 5591.3-2018 Combined flexible materials for electrical insulation—Part 3:Specifications for individual materials GB/T 6109.20-2008 Enamelled round winding wire—Part 20:Polyester or polyesterimide overcoated with polyamide-imide enamelled round copper wire,class 200 GB/T 7095.6-1995 Enamelled rectangular wires—Part 6:Polyester (imide) overcoated with polyamide-imide enamelled rectangular copper wires, class 200 GB/T 7095.6-2008 Enamelled rectangular copper winding wires—Part 6:Polyester or polyesterimide overcoated with polyamide-imide enamelled rectangular copper wire,class 200 GB/T 7672.5-2008 Glass-fiber wound winding wires—Part 5:Glass-fiber wound resin or varnish impregnated,bare or enamelled rectangular copper wire,temperature index 200 GB/T 17948.1-2000 Rotating electrical machines—Functional evaluation of insulation systems—Test procedures for wire-wound windings—Thermal evaluation and classification GB/T 17948.1-2018 Rotating electrical machines—Functional evaluation of insulation systems—Test procedures for wire-wound windings—Thermal evaluation and classification JB/T 10508-2020 Technical requirements for slot wedges used in small and medium-sized motors JB/T 10508-2005 Technical specification for slot wedges used in small and medium-sized motors

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