Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1980-10-14
1982-12-07
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324113, G01R 3102
Patent
active
043629865
ABSTRACT:
A selected point in an electric power system is monitored for subsequent fault analysis. The voltage and current at the point is continuously sampled with samples for a predetermined period of time being temporarily stored in memory. In response to a Fault Event, voltage and current samples at differing sample rates and for differing periods of time are recorded. Voltage and current samples after a Cold Load Pickup are recorded, also the recorded samples allow later analysis of the fault and identification of the cause of the fault.
REFERENCES:
patent: 3401395 (1968-09-01), Neher
patent: 3729654 (1973-04-01), Yeager
patent: 3869667 (1975-03-01), Canicatti
patent: 3889289 (1975-06-01), Kubach
patent: 4110684 (1978-08-01), Gale
patent: 4311960 (1982-01-01), Barr
Smith et al., New Field Laboratories for the Measurement of Electrical Transients, International Conference on Large High Voltage Electric Systems, Aug. 27-Sep. 4, 1980 Session, pp. 1-12.
Douglas et al., Analysis of Fault Characteristics for Utility Distribution Systems, PTI Newsletter, Jul. 1979, pp. 1 & 3. _
Fault Current Analysis, EPRI Journal, Jun. 1980, p. 57.
Fault Current Analysis, EPRI Journal, Jan./Feb. 1979, p. 47.
Burke James J.
Douglass Dale A.
Lacy Robert A.
Murphy Richard J.
Wilson Delano D.
Electric Power Research Institute Inc.
Krawczewicz Stanley T.
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