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1. EP3664111 - FILM CAPACITOR WITH BALANCING PATH

Office European Patent Office
Application Number 18209872
Application Date 03.12.2018
Publication Number 3664111
Publication Date 10.06.2020
Publication Kind A1
IPC
H01G 4/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
32Wound capacitors
H01G 4/012
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
002Details
005Electrodes
012Form of non-self-supporting electrodes
H01G 4/015
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
002Details
005Electrodes
015Special provisions for self-healing
H01G 4/18
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
002Details
018Dielectrics
06Solid dielectrics
14Organic dielectrics
18of synthetic material, e.g. derivatives of cellulose
H01G 4/38
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
38Multiple capacitors, i.e. structural combinations of fixed capacitors
CPC
H01G 4/012
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
002Details
005Electrodes
012Form of non-self-supporting electrodes
H01G 4/015
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
002Details
005Electrodes
015Special provisions for self-healing
H01G 4/18
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
002Details
018Dielectrics
06Solid dielectrics
14Organic dielectrics
18of synthetic material, e.g. derivatives of cellulose
H01G 4/186
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
002Details
018Dielectrics
06Solid dielectrics
14Organic dielectrics
18of synthetic material, e.g. derivatives of cellulose
186halogenated
H01G 4/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
32Wound capacitors
H01G 4/385
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
4Fixed capacitors; Processes of their manufacture
38Multiple capacitors, i.e. structural combinations of fixed capacitors
385Single unit multiple capacitors, e.g. dual capacitor in one coil
Applicants ABB SCHWEIZ AG
Inventors BAUR MATTHIAS
DONZEL LISE
CHRISTEN THOMAS
LAIHONEN SARI
Designated States
Priority Data 18209872 03.12.2018 EP
Title
(DE) FOLIENKONDENSATOR MIT AUSGLEICHSPFAD
(EN) FILM CAPACITOR WITH BALANCING PATH
(FR) CONDENSATEUR À FILM À CHEMIN D'ÉQUILIBRAGE
Abstract
(EN)
A film capacitor 1 includes a first film 2a, a second film 2b, a first electrode 3a connected to a first terminal, a second electrode 3b connected to a second terminal, an electrically floating electrode 4, and a balancing path. A part of the electrically floating electrode 4 is in contact with a front side of the first film 2a. The balancing path provides a first balancing connection between the electrically floating electrode 4 and the first terminal and a second balancing connection between the electrically floating electrode 4 and the second terminal. The first balancing connection and the second balancing connection each have an electrical resistance lower than any leakage resistance and higher than 103Ohm. A leakage resistance is an electrical resistance through any of the first film 2a and the second film 2b between the electrically floating electrode 4 and an electrode devoid of contact with the front side of the first film 2a.

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