Invention Grant
- Patent Title: Portable self powered line mountable electric power line current monitoring transmitting and receiving system
- Patent Title (中): 便携式自供电线路安装电力线电流监测发射和接收系统
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Application No.: US14566803Application Date: 2014-12-11
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Publication No.: US09271563B2Publication Date: 2016-03-01
- Inventor: Murray W. Davis
- Applicant: Murray W. Davis
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: G01R31/40
- IPC: G01R31/40 ; A46B9/02 ; H02G1/02 ; G01B11/06 ; G01W1/14 ; G01R1/20 ; G01R19/00 ; G01R31/08 ; G01N27/22 ; H01F38/30 ; H04N5/225 ; G01D11/30 ; G01K13/00 ; H01F27/02 ; H01F27/22 ; H01R4/28 ; G01R1/22 ; H04N7/18
Abstract:
A method of determining a fault on a power line conductor includes the steps of determining a magnitude and a direction of a load current waveform in the power line conductor with a loop coil and determining a magnitude and a direction of a fault current waveform in the power line conductor with the loop coil. A polarity of the fault current waveform is compared with a polarity of the load current waveform to determine if a change in polarity between the fault current waveform and the load current waveform occurred to determine the direction of the fault. Data representing a fault to at least one remote location is transmitted when a predetermined trigger value is reached.
Public/Granted literature
Information query
