GB/T 20833.4-2021
Rotating electrical machines—The winding insulation—Part 4: Measurement of insulation resistance and polarization index (English Version)
- Standard No.
- GB/T 20833.4-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- 国家市场监督管理总局、中国国家标准化管理委员会
- Latest
- GB/T 20833.4-2021
- Scope
- This part of GB/T 20833 specifies the test procedures for the insulation resistance and polarization index of stator and rotor windings of rotating electrical machines. This standard specifies the minimum recommended values for winding insulation resistance and polarization index of rotating electrical machines with a rated power of 750 W and above. This section applies to low-voltage, high-voltage AC and DC rotating electrical machines.
GB/T 20833.4-2021 history
- 2021 GB/T 20833.4-2021 Rotating electrical machines—The winding insulation—Part 4: Measurement of insulation resistance and polarization index
GB/T 20833.4-2021 -All Parts
GB/T 20833.1-2021 Rotating electrical machines—The winding insulation—Part 1:Off-line partial discharge measurements
GB/T 20833.2-2016 Rotating electrical machines—The stator winding insulation of rotating electrical machines—Part 2: On-line partial discharge measurements on
GB/T 20833.3-2018 Rotating electrical machines—Stator winding insulation of rotating electrical machines—Part 3: Dielectric dissipation factor measurement
GB/T 20833.4-2021 Rotating electrical machines—The winding insulation—Part 4: Measurement of insulation resistance and polarization index