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1. WO2020112667 - GROUND FAULT DETECTION IN UNGROUNDED POWER SYSTEMS

Publication Number WO/2020/112667
Publication Date 04.06.2020
International Application No. PCT/US2019/063065
International Filing Date 25.11.2019
IPC
G01R 15/14 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/-G01R29/, G01R33/-G01R33/26176
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
G01R 19/25 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
25using digital measurement techniques
G01R 29/08 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29Arrangements for measuring or indicating electric quantities not covered by groups G01R19/-G01R27/135
08Measuring electromagnetic field characteristics
G01R 29/12 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29Arrangements for measuring or indicating electric quantities not covered by groups G01R19/-G01R27/135
12Measuring electrostatic fields
G01R 29/14 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29Arrangements for measuring or indicating electric quantities not covered by groups G01R19/-G01R27/135
12Measuring electrostatic fields
14Measuring field distribution
G01R 31/08 2020.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
08Locating faults in cables, transmission lines, or networks
CPC
G01R 15/14
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
G01R 19/2513
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
25using digital measurement techniques
2513Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
G01R 29/08
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
08Measuring electromagnetic field characteristics
G01R 29/0878
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
08Measuring electromagnetic field characteristics
0864characterised by constructional or functional features
0878Sensors; antennas; probes; detectors
G01R 29/12
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
12Measuring electrostatic fields ; or voltage-potential
G01R 29/14
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
12Measuring electrostatic fields ; or voltage-potential
14Measuring field distribution
Applicants
  • X DEVELOPMENT LLC [US]/[US]
Inventors
  • CASEY, Leo Francis
  • XIN, Siyuan
Agents
  • HOOVER, Kenneth J.
  • BOWLEY, Christopher C.
Priority Data
16/200,86327.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) GROUND FAULT DETECTION IN UNGROUNDED POWER SYSTEMS
(FR) DÉTECTION DE DÉFAILLANCE DE MISE À LA TERRE DANS DES SYSTÈMES ÉLECTRIQUES SANS MISE À LA TERRE
Abstract
(EN)
Methods, systems, and apparatus, including computer programs stored on a computer-readable storage medium, for obtaining, from an electric field sensor, measurements of a net electric field resulting from a combination of respective electric fields from two or more electrical power conductors that are proximate to the electric field sensor. The apparatus detects a change in successive measurements of the net electric field. The apparatus determines, based on the change, that an electrical fault has occurred in one of the two or more electric power conductors. The apparatus sends to a server system, data indicating that the electrical fault has occurred in one of the two or more electric power conductors.
(FR)
Cette invention concerne également des procédés, des systèmes et un appareil, comprenant des programmes informatiques stockés sur un support de stockage lisible par ordinateur, pour obtenir, à partir d'un capteur de champ électrique, des mesures d'un champ électrique net résultant d'une combinaison de champs électriques respectifs en provenance d'au moins deux conducteurs d'alimentation électrique qui sont à proximité du capteur de champ électrique. L'appareil détecte un changement dans les mesures successives du champ électrique net. L'appareil détermine, sur la base du changement, qu'une défaillance électrique s'est produite dans l'un desdits conducteurs d'alimentation électrique. L'appareil transmet à un système de serveur des données indiquant que la défaillance électrique s'est produite dans l'un desdits conducteurs d'alimentation électrique.
Also published as
Latest bibliographic data on file with the International Bureau