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1. WO2018151804 - LOCALIZED APPLICATION OF HIGH IMPEDANCE FAULT ISOLATION IN MULTI-TAP ELECTRICAL POWER DISTRIBUTION SYSTEM

Publication Number WO/2018/151804
Publication Date 23.08.2018
International Application No. PCT/US2018/000011
International Filing Date 16.02.2018
IPC
G01R 31/00 2006.1
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
H02H 7/22 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
22for distribution gear, e.g. bus-bar systems; for switching devices
CPC
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 31/52
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 3/042
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
02Details
04with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
042combined with means for locating the fault
H02H 3/083
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
08responsive to excess current
083for three-phase systems
H02H 7/261
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
261involving signal transmission between at least two stations
H02J 13/00026
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
13Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
00006characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
00022using wireless data transmission
00026involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
Applicants
  • ELECTRICAL MATERIALS COMPANY [US]/[US]
Inventors
  • O'REGAN, Timothy, M.
  • O'REGAN, Timothy, J.
  • HAYES, Thomas, M.
Agents
  • KIM, B., Joe
Priority Data
15/435,00216.02.2017US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LOCALIZED APPLICATION OF HIGH IMPEDANCE FAULT ISOLATION IN MULTI-TAP ELECTRICAL POWER DISTRIBUTION SYSTEM
(FR) APPLICATION LOCALISÉE D'ISOLATION DE DÉFAUT À HAUTE IMPÉDANCE DANS UN SYSTÈME DE DISTRIBUTION D'ÉNERGIE ÉLECTRIQUE À PRISES MULTIPLES
Abstract
(EN) A high impedance fault isolation system (HIFIS) identifies, isolates and dissipates high impedance, low current faults which occur within an individual tap, or branch, of an electric power distribution system using only portions of the tap affected. A master meter, or father smart meter (FSM), on the affected tap sends a coded signal to an antenna receiver combined with a microprocessor and chip which operates an electromagnetic control (EMC) grounding spring switch which isolates the downed primary conductor by causing the distribution system protecting device, i.e., a high voltage fuse or recloser, to de-energize the downed primary wire. A fire door sensor circuit then receives the trip signal from the microprocessor, causing the fire door sensor to melt open and release a shorting spring, in initiating operation of an expulsion fuse or recloser, which kills the downed live wire.
(FR) Un système d'isolation de défaut à haute impédance (HIFIS) identifie, isole et dissipe des dysfonctionnements à haute impédance et à faible courant qui se produisent à l'intérieur d'une prise ou d'une branche individuelle d'un système de distribution d'énergie électrique à l'aide uniquement de parties de la prise affectée. Un compteur maître, ou compteur intelligent père (FSM), envoie sur la prise affectée un signal codé à un récepteur d'antenne combiné à un microprocesseur et à une puce qui actionne un commutateur à ressort de mise à la terre à commande électromagnétique (EMC) qui isole le conducteur primaire hors tension en amenant le dispositif de protection de système de distribution, à savoir, un fusible à haute tension ou un disjoncteur à réenclenchement, à désexciter le fil primaire hors tension. Un circuit de détection de porte coupe-feu reçoit ensuite le signal de déclenchement en provenance du microprocesseur, amenant le capteur de porte coupe-feu à fondre et à libérer un ressort de court-circuit, lors de l'initiation du fonctionnement d'un fusible à expulsion ou d'un disjoncteur à réenclenchement, ce qui neutralise le fil sous tension hors tension.
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