[panel panel-style="panel" title="%E2%80%8B%E2%80%8B%E2%80%8B%E2%80%8B%E2%80%8B%E2%80%8BPlease%20Read%20Before%20Downloading%20NEETRAC%20Reports"]
NEETRAC reports are proprietary and confidential to its members for internal use only except as provided in NEETRAC's Publication Policy. NRECA is making the reports and other NEETRAC information available to NRECA's members through permission by NEETRAC via our membership agreement.
By accessing (downloading/viewing) any NEETRAC report, the reader agrees to abide by the restrictions as to the use and sharing of information contained in said report. The reader acknowledges that the applicable restrictions are stipulated in the NEETRAC Bylaws along with the various Application Procedures as promulgated by the NEETRAC Management Board on a regular basis. These Bylaws and Applicable Procedures are posted on the member-restricted segment of the NEETRAC website. See
neetrac.org and contact NEETRAC for more information.
[/panel]
Funding: Joint
NEETRAC PROJECT #: 14-225
Date Closed: May 2016
This Project investigates additional possible issues with accessory fault current initiation caused by:
- The relatively common practice of using 15 kVrms rated accessories on system operating at 4.3 kVrms because components rated for the lower voltages are unavailable, and
- The effect of changes in elbow installation resulting from the use of faulted circuit indicators (FCIs).
Several additional issues with the current edition of the IEEE 592 standard should be considered by the working group in revising this standard, including:
- Acceptable tolerances for the fault current magnitude and duration
- X/R ration used for the fault initiation tests
- Fault initiation test sample construction details
