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1. WO2017035058 - SYSTEM AND METHOD FOR AUTOMATIC HIGH RESISTANCE GROUND PULSE ACTIVATION AND DETECTION

Publication Number WO/2017/035058
Publication Date 02.03.2017
International Application No. PCT/US2016/047985
International Filing Date 22.08.2016
IPC
G01R 31/02 2006.01
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
02Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
G01R 19/165 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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
CPC
G01R 31/08
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
G01R 31/086
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
081according to type of conductors
086in power transmission or distribution networks, i.e. with interconnected conductors
G01R 31/50
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
50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
G01R 31/52
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
50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
52Testing for short-circuits, leakage current or ground faults
H02H 3/162
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
16responsive to fault current to earth, frame or mass
162for ac systems
H02H 3/165
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
16responsive to fault current to earth, frame or mass
162for ac systems
165for three-phase systems
Applicants
  • EATON INTELLIGENT POWER LIMITED [IE]/[IE]
Inventors
  • LOUCKS, David Glenn
  • WOLFE, Robert Thomas
  • DIMINO, Steven Andrew
  • HRNCIR, Daniel Edward
  • MORT, Deborah Kaltwasser
  • BURKLE, Alec Dane
Agents
  • ZIOLKOWSKI, Timothy J.
Priority Data
14/835,16325.08.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR AUTOMATIC HIGH RESISTANCE GROUND PULSE ACTIVATION AND DETECTION
(FR) SYSTÈME ET PROCÉDÉ POUR L'ACTIVATION ET LA DÉTECTION AUTOMATIQUES D'IMPULSIONS DE TERRE À HAUTE RÉSISTANCE
Abstract
(EN)
A system for locating a ground fault in an HRG power distribution system includes an HRG pulsing system having a ground fault sensor to detect a ground fault, a pulsing contactor to introduce a pulsing current into the power distribution system, and a controller to control the pulsing contactor to introduce the pulsing current into the power distribution system in response to a ground fault detection by the ground fault sensor. Current sensors in the power distribution system monitor three-phase current signals on conductors of the power distribution system, with the current sensors positioned on distribution networks in the power distribution system and at a protection device included on each respective distribution network. A processor associated with each protection device and operably connected to the current sensors thereat receives signals from the current sensors for identifying a location of a ground fault in the power distribution system.
(FR)
L'invention concerne un système de localisation d'un défaut de mise à la terre dans un système de distribution de puissance HRG qui comprend un système à impulsions HRG comportant un capteur de défaut de mise à la terre pour détecter un défaut de mise à la terre, un contacteur à impulsions pour introduire un courant d'impulsion dans le système de distribution de puissance, et un organe de commande pour commander le contacteur à impulsions pour introduire le courant d'impulsion dans le système de distribution de puissance en réponse à une détection de défaut de mise à la terre par le capteur de défaut de mise à la terre. Des capteurs de courant dans le système de distribution de puissance surveillent des signaux de courant triphasé sur les conducteurs du système de distribution de puissance, les capteurs de courant étant positionnés sur des réseaux de distribution dans le système de distribution de puissance et au niveau d'un dispositif de protection inclus sur chaque réseau de distribution respectif. Un processeur associé à chaque dispositif de protection et connecté de manière opérationnelle aux capteurs de courant au niveau de celui-ci reçoit des signaux provenant des détecteurs de courant permettant d'identifier un emplacement d'un défaut de mise à la terre dans le système de distribution de puissance.
Latest bibliographic data on file with the International Bureau