GB/T 7346-1998
Replaced
GB/T 20833.4-2021
Active
National standards
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 Rotating electrical machines—The winding insulation—Part 4:Measurement of insulation resistance and polarization index
Price:
$ 84
Basic Information
Standard Code:
GB/T 20833.4-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Rotating motor
ICS Name:
Rotating motor comprehensive
Publish Date:
2021-03-09
Implement Date:
2021-10-01
Pages:
32 pages
Scope
This part of GB/T 20833 specifies the test procedures for the insulation resistance and polarization index of the stators and rotor windings of rotating motors.
This part specifies the minimum recommended values for the insulation resistance and polarization index of the windings of rotating motors with a rated power of 750 W or more. This part is applicable to low-voltage, high-voltage AC and DC rotating motors.
Development Information
Same series standard
Referenced Standards
IEC 60050-411
Adopt standards
IEC 60034-27-4:2018
Related Standards
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
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
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
GB 10068-2000
Replaced
GB 10068-2000 Mechanical vibration of certain machines with shaft heights 56mm and higher—Measurement,evaluation and limits of vibration
GB/T 17948.1-2000
Replaced