One-terminal data fault location system and process for locating

Details One-terminal data fault location system and process for locating One-terminal data fault location system and process for locating

1995-08-15

1997-08-26

Voeltz, Emanuel T.

Boots, shoes, and leggings

364481, 364482, 364487, 324512, 324525, 361 80, G01R 3108

Patent

active

056616643

ABSTRACT:
A one-terminal process for locating a fault associated with a transmission system is disclosed. The process is based on the principle fault sequence can be determined by a distribution factor in positive faults may be any defect among phases or ground. The process begins by one end of a transmission line. If the data is oscillographic data, measured data is in phasor form, or after phasors have been calculated determined. Thereafter, a decision is made whether the pre-fault data data is sound, an equation is selected to calculate the fault location decision is made whether the phase is a three-phase fault. Then, a employed to compensate for the fault through a resistance by measuring part of the apparent line impedance. If the fault is not a three-phase formula is not employed and the appropriate equation is selected for the fault location parameter. Accurate fault location techniques for also disclose. The system is insensitive to the zero sequence current information about the system source impedances is required.

REFERENCES:
patent: 3590368 (1971-06-01), Esclangon
patent: 4092690 (1978-05-01), Wilkinson
patent: 4107778 (1978-08-01), Nii et al.
patent: 4128805 (1978-12-01), Lanz
patent: 4281386 (1981-07-01), Kondow et al.
patent: 4313169 (1982-01-01), Takagi et al.
patent: 4314199 (1982-02-01), Yamaura et al.
patent: 4352137 (1982-09-01), Johns
patent: 4371908 (1983-02-01), Andow et al.
patent: 4390835 (1983-06-01), Elkateb et al.
patent: 4405966 (1983-09-01), Cavero
patent: 4455612 (1984-06-01), Girgis et al.
patent: 4499417 (1985-02-01), Wright et al.
patent: 4559491 (1985-12-01), Saha
patent: 4570231 (1986-02-01), Bunch
patent: 4689709 (1987-08-01), Isahaya
patent: 4755903 (1988-07-01), Kotani
patent: 4766549 (1988-08-01), Schweitzer et al.
patent: 4795983 (1989-01-01), Crockett et al.
patent: 4797805 (1989-01-01), Nimmersjo
patent: 4803635 (1989-02-01), Andow
patent: 4811154 (1989-03-01), Trenkler et al.
patent: 4812995 (1989-03-01), Girgis et al.
patent: 4851782 (1989-07-01), Jeerings et al.
patent: 4857854 (1989-08-01), Matsushima
patent: 4868704 (1989-09-01), Cavero
patent: 4871971 (1989-10-01), Jeerings et al.
patent: 4897607 (1990-01-01), Grunewald et al.
patent: 4906937 (1990-03-01), Wikstrom et al.
patent: 4996624 (1991-02-01), Schweitzer, III
patent: 4998098 (1991-03-01), Schweitzer, III
patent: 5072403 (1991-12-01), Johns
patent: 5181026 (1993-01-01), Granville
T. Takagi et al., "Development of a new type fault locator uning the one terminal voltage and current data" IEEE Transactions on Power apparatus and Systems, vol. PAS-101, No. 8 Aug. 1982.
M. S. Sachdev et al., "A technique for estimating transmission line fault locations from digital impedance relay measurements" IEEE Transactions on Power Delivery, vol. 3, No. 1 Jan. 1988.
A. Girgis et al., "A new fault location technique for two and three terminal lines" IEEE Transactions on Power Delivery, vol. 7, No. 1 Jan. 1992.
Novosel et al., "Improvements in Fault Location Estimate," pp. 1-8, Apr. 1993.
T. Takagi et al., "Development of a New Type Fault Locator Using the One-Terminal voltage and Current Data," IEEE Transctions on Power Apparatus and Systems, vol. PAS-101, No. 8, Aug. 1982.
Muchuan Michael Chen, "Managerial Relaying: An Adaptive Approach To A System Protection Problem," Ph.D. Dissertation, University of Pennsylvania, 1974.
M.S. Sachdev, et al., "A Tehcnique For Estimating Transmission Line Fault Locations From Digital Impedance Relay Measurements," IEEE Transactions on Power Delivery, vol. 3, No. 1, Jan. 1988.
A. Girgis, et al., "A New Fault Location Technique For Two- And Three-Terminal Lines," IEEE Transactions on Powre Delivery, vol. 7, No. 1, Jan. 1992.
D. Novosel et al., "Accurate Fault Location Using Digital Relays," 1 CPST '94, Oct. 18-21, 1994, Beijing, China.

Affiliated with

Also associated with

Rating

One-terminal data fault location system and process for locating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with One-terminal data fault location system and process for locating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and One-terminal data fault location system and process for locating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1992726