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1. WO2020114593 - MEASURING DEVICE, ELECTRICAL SYSTEM HAVING A MEASURING DEVICE AND METHOD FOR MEASURING A LEAKAGE CURRENT

Publication Number WO/2020/114593
Publication Date 11.06.2020
International Application No. PCT/EP2018/083667
International Filing Date 05.12.2018
IPC
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 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 31/14 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
12Testing dielectric strength or breakdown voltage
14Circuits therefor
G01R 27/02 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
G01R 31/12 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
12Testing dielectric strength or breakdown voltage
G01R 19/18 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
18using conversion of dc into ac, e.g. with choppers
CPC
G01R 15/16
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
16using capacitive devices
G01R 19/165
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 19/18
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
18using conversion of dc into ac, e.g. with choppers
G01R 27/025
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
025Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
G01R 31/1245
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
12Testing dielectric strength or breakdown voltage ; ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
1227of components, parts or materials
1245of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
G01R 31/14
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
12Testing dielectric strength or breakdown voltage ; ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
14Circuits therefor ; , e.g. for generating test voltages, sensing circuits
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • ARMSCHAT, Christoph
  • AUGSBURGER, Friedemann
Priority Data
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) MESSVORRICHTUNG, ELEKTRISCHE ANLAGE MIT MESSVORRICHTUNG UND VERFAHREN ZUM MESSEN EINES LECKSTROMES
(EN) MEASURING DEVICE, ELECTRICAL SYSTEM HAVING A MEASURING DEVICE AND METHOD FOR MEASURING A LEAKAGE CURRENT
(FR) DISPOSITIF DE MESURE, INSTALLATION ÉLECTRIQUE COMPRENANT UN DISPOSITIF DE MESURE ET PROCÉDÉ DE MESURE D'UN COURANT DE FUITE
Abstract
(DE)
Die Erfindung betrifft eine Vorrichtung (20) zum Messen eines Leckstromes. Die Erfindung zeichnet sich dadurch aus, dass die Vorrichtung eine erste und eine zweite Elektrode (E1, E2) zum Platzieren in einem Leckstrompfad, einen Energiespeicher (C), der derart mit den Elektroden verschaltet ist, dass er mittels des Leckstromes aufladbar ist, sowie ein Funkmodul (22) umfasst, der mit dem Energiespeicher verbunden und dazu eingerichtet ist, ein Funksignal zu senden, wenn eine Energiespeicherspannung am Energiespeicher einen vorbestimmten Spannungsschwellwert erreicht oder überschreitet. Die Erfindung betrifft ferner eine elektrische Anlage (1) mit der erfindungsgemäßen Vorrichtung (20) sowie ein Verfahren zum Messen eines Leckstromes.
(EN)
The invention relates to a device (20) for measuring a leakage current. The invention is characterized in that the device comprises a first and a second electrode (E1, E2) to be placed in a leakage current path, an energy store (C), which is connected to the electrodes in such a way that the energy store can be charged by means of the leakage current, and a radio module (22), which is connected to the energy store and is configured to transmit a radio signal when an energy store voltage on the energy store reaches or exceeds a predetermined voltage threshold value. The invention further relates to an electrical system (1) having the device (20) according to the invention and to a method for measuring a leakage current.
(FR)
L'invention concerne un dispositif (20) destiné à mesurer un courant de fuite. L'invention est caractérisée en ce que le dispositif comprend une première et une deuxième électrode (E1, E2) destinée à être placées dans un chemin de courant de fuite, un accumulateur d'énergie (C) qui est connecté aux électrodes de telle sorte qu'il peut être chargé au moyen du courant de fuite, et un module radio (22) qui est connecté à l'accumulateur d'énergie et qui est adapté pour transmettre un signal radio lorsqu'une tension d'accumulateur d'énergie au niveau de l'accumulateur d'énergie atteint ou dépasse une valeur seuil de tension prédéterminée. L'invention concerne en outre une installation électrique (1) équipée du dispositif (20) selon l'invention ainsi qu'un procédé de mesure d'un courant de fuite.
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