IEEE Draft Recommended Practice for Voltage-Endurance Testing of Form-Wound Bars and Coils

IEEE Std. 1043™ provides a comprehensive framework for the voltage-endurance testing of form-wound bars and coils used in large rotating machine stator windings. This recommended practice outlines the procedures for conducting voltage endurance test on bars/coils with nominal voltage up to 30,000 V, and operating frequencies of 50 Hz or 60 Hz. The standard specifies power supply and voltage requirements, test set-up, specimen preparation, pre-test evaluation methods, as well as temperature and voltage application and measurement methods. The recommended practice also provides guidelines for failure investigations, suggested test records and test report requirements.