IEEE Std 4 "High voltage testing techniques": Past, present and future - IEEE/PES/PSIM High Voltage Testing Techniques Subcommittee Report

IEEE Std 4 1995 is the latest version of the general IEEE standard dealing with High Voltage Testing and Measurement. The current revision is the seventh edition of this document as a separate standard. The previous revision of IEEE Std4 was published in 1978. The major changes from that version to the present (1995) version version are: 1. Description of the wet testing procedure; 2. Methods for artificial contamination tests; 3. Enhanced techniques for assuring the accuracy of HV measurements; 4. Introduction of the Reference divider method for checking the accuracy of Impulse Voltage Measuring systems; 5. Discussion of Dielectric Loss Measurements (Tanδ and Power Factor); 6. Changes in Atmospheric Correction Factors. This paper presents a detailed review of the changes made in the last revision of IEEE-4 compared to the 1978 version, the plans for future revisions and the impact of harmonization with IEC sister standards.