RECOMMENDED PRACTICE FOR QUALITY CONTROL TESTING OF EXTERNAL DISCHARGES ON STATOR COILS, BARS, AND WINDINGS
Institute of Electrical & Electronics Engineers
1. Overview
2. Normative references
3. Definitions
4. Test preparation and safety
5. Test equipment and connections
6. Quality control test of external discharges with
corona-imaging instrument or blackout test
7. Data records
Annex A (informative) - Theory of optical emissions from
external discharges
Annex B (informative) - Variability of discharge inception
and extinction voltages
Annex C (informative) - Example of determination of the
maximum voltage for a specific winding diagram
Annex D (informative) - Example of correction factor to
apply to the test voltage of a stator model and VPI
stator for a machine which will operate at altitudes
of more than 1000 m
Annex E (informative) - Example of operating-voltage table
and bar/coil identification table used during test
Annex F (informative) - Bibliography
Covers a procedure to detect external discharges in form-wound bars and coils and complete stator windings of rotating machines operating in air with a rated line-to-line voltage greater than 4200 V at power frequency.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
