Staged fault at Denver International Airport
Electric utilities occasionally conduct staged faults to test transmission and substation circuit breakers and relay protection schemes. This paper discusses a staged fault test conducted on a 25kV distribution system at Denver International Airport (DIA) to test sophisticated fault detection hardware and software in distribution automation field equipment. In 1993 and the first part of 1994, supervisory controlled 25kV switch cabinets were installed along key distribution feeder tie points at DIA. The supervisory switch cabinets monitor and report voltage, current, switch status, etc. and provide remote and local fault indication utilizing digital signal processing. The switch cabinets are monitored and controlled by Public Service Company of Colorado`s (PSCo) energy management and SCADA system. On July 29, 1994, PSCo conducted two staged faults to test the fault indication software and hardware as part of the complete system. This paper will illustrate why and how these two faults were initiated. It will also reveal the preparation required to stage the faults, the expected results, the actual results, conclusions, and solutions to problems found.
- OSTI ID:
- 192246
- Report Number(s):
- CONF-9501113-; TRN: 96:001030-0062
- Resource Relation:
- Conference: 1995 DA/DSM conference, San Jose, CA (United States), 23-25 Jan 1995; Other Information: PBD: 1995; Related Information: Is Part Of DA/DSM 1995 conference proceedings. Volume 1 and 2; PB: 699 p.
- Country of Publication:
- United States
- Language:
- English
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