Cable Failures and Protective Relay Operation Associated with NASA Glenn's 10x10 Supersonic Wind Tunnel (Paperback) (ISBN-13: 9781287292562)

During a two-month period, NASA Glenn Research Center in Cleveland, Ohio experienced two failures of high voltage cables associated with its 10 x 10 supersonic wind tunnel (SWT) and a ground problem from the local utility. This paper addresses these problems and associated relay operations. The following incidents are reviewed: 1) Failure of 6.9kV transformer drive cable and operation of protective relaying; 2) Detection of problem on First Energy's 138kV utility power system with new microprocessor based relays; 3) Failure of 138kV transformer primary cable and operation of protective relaying. All three incidents were associated with transformer K10, one of four transformers feeding the 10 x 10 SWT complex.

Author: Nasa Technical Reports Server (Ntrs),Cass Kuhl
ISBN-10: 1287292569
ISBN-13: 9781287292562
Publisher: Bibliogov
Language: English
Published: 08/07/2013
Pages: 22
Format: Paperback
Weight: 0.13lbs
Size: 9.69h x 7.44w x 0.05d