JEFFERSON BRONFELD
Architects at Lawson Ct, Binghamton, NY
License number
Alaska AELE12903
Issued Date
May 9, 2011
Effective Date
Jan 4, 2016
Expiration Date
Dec 31, 2017
Category
Architects, Engineers and Land Surveyors
Address
Address
6 Lawson Ct, Binghamton, NY 13905
Personal information
See more information about JEFFERSON BRONFELD at radaris.comName
Address
Phone
6 Lawson Ct, Binghamton, NY 13905
Binghamton, NY
6 Lawson Ct, Binghamton, NY 13905
6 Lawson Ct, Binghamton, NY 13905
Professional information
Method And Apparatus For Detecting High-Impedance Faults In Electrical Power Systems
US Patent:
5734575, Mar 31, 1998
Filed:
Feb 23, 1996
Appl. No.:
8/605826
Inventors:
Peter B. Snow - Colorado Springs CO
Alexander P. Apostolov - Binghamton NY
Jefferson D. Bronfeld - Binghamton NY
Alexander P. Apostolov - Binghamton NY
Jefferson D. Bronfeld - Binghamton NY
Assignee:
New York State Electric & Gas Corp. - Binghamton NY
International Classification:
G06F 1522, G01R 3108
US Classification:
364482
Abstract:
The present invention features a method and apparatus for detecting and enabling the clearance of high impedance faults (HIFs) in an electrical transmission or distribution system. Current in at least one phase in a distribution system is monitored in real time by sensors. Analog current signature information is then digitized for processing by a digital computer. Zero crossings are identified and current maxima and minima located. The first derivatives of the maxima and minima are computed and a modified Fast Fourier Transform (FFT) is then performed to convert time domain to frequency domain information. The transformed data is formatted and normalized and then applied to a trained neural network, which provides an output trigger signal when an HIF condition is probable. The trigger signal is made available to either a network administrator for manual intervention, or directly to switchgear to deactivate an affected portion of the network. The inventive method may be practiced using either conventional computer hardware and software or dedicated custom hardware such as a VLSI chip.
Method And Apparatus For Detecting High-Impedance Faults In Electrical Power Systems
US Patent:
5537327, Jul 16, 1996
Filed:
Oct 22, 1993
Appl. No.:
8/141308
Inventors:
Peter B. Snow - Colorado Springs CO
Alexander P. Apostolov - Binghamton NY
Jefferson D. Bronfeld - Binghamton NY
Alexander P. Apostolov - Binghamton NY
Jefferson D. Bronfeld - Binghamton NY
Assignee:
New York State Electric & Gas Corporation - Binghamton NY
International Classification:
G06F 1522, G01R 3108
US Classification:
364483
Abstract:
The present invention features a method and apparatus for detecting and enabling the clearance of high impedance faults (HIFs) in an electrical transmission or distribution system. Current in at least one phase in a distribution system is monitored in real time by sensors. Analog current signature information is then digitized for processing by a digital computer. Zero crossings are identified and current maxima and minima located. The first derivatives of the maxima and minima are computed and a modified Fast Fourier Transform (FFT) is then performed to convert time domain to frequency domain information. The transformed data is formatted and normalized and then applied to a trained neural network, which provides an output trigger signal when an HIF condition is probable. The trigger signal is made available to either a network administrator for manual intervention, or directly to switchgear to deactivate an affected portion of the network. The inventive method may be practiced using either conventional computer hardware and software or dedicated custom hardware such as a VLSI chip.