IEEE 1291:1993 (R2005)

New IEEE Standard - Inactive-Withdrawn.
This guide defines methods of measuring partial discharges that may occur in energized power switchgear apparatus in flaws, voids, and interfaces of non-self restoring insulation that may then result in dielectric failure of the switchgear. Guidance on instrumentation and calibration technique is also given.

Provide a guide for the measurement of partial discharges on all types of power system switchgear rated 1000 volts and above. The guide will include specific methods of test circuit/specimen calibration to ensure accurate,repeatable measurements may be made for the wide range of apparatus size, insulation types and apparatus capacitance.