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See Chinese contents: GB/T 22720.1-2017 GB/T 22720.1-2017: Rotating electrical machines -- Qualification and quality control tests of partial discharge free electrical insulation systems (Type Ⅰ) used in rotating electrical machines fed from voltage converters
This Part specifies the assessment criteria for stator / rotor winding insulation systems fed from voltage-source pulse-width-modulation (PWM). This Part is applicable to the stator / rotor winding insulation systems of single-phase or multi-phase AC motors powdered by converters. This Part specifies the qualification and quality control (type and exit-factory) tests for typical samples or complete motors, so as to verify the degree of fitness with voltagesource converters.
