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1. WO2020142215 - CIRCUIT BREAKER HAVING INTERNAL TRANSIENT RECOVERY VOLTAGE CAPACITOR ASSEMBLY

Publication Number WO/2020/142215
Publication Date 09.07.2020
International Application No. PCT/US2019/067195
International Filing Date 18.12.2019
IPC
H01H 9/30 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/-H01H7/104
30Means for extinguishing or preventing arc between current-carrying parts
H02H 3/02 2006.1
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
H02H 3/22 2006.1
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
20responsive to excess voltage
22of short duration, e.g. lightning
CPC
H01H 33/16
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
02Details
04Means for extinguishing or preventing arc between current-carrying parts
16Impedances connected with contacts
H01H 33/167
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
02Details
04Means for extinguishing or preventing arc between current-carrying parts
16Impedances connected with contacts
167the impedance being inserted only while opening the switch
H01H 33/70
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
70Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
Applicants
  • ABB POWER GRIDS SWITZERLAND AG [CH]/[CH]
Inventors
  • SHINDE, Sushil A.
  • KURINKO, Carl R.
  • CUPPETT, Matthew D.
  • VLADUCHICK, Paul Jason
  • HOBURN, Thomas E.
  • DAEHLER, Christian
Agents
  • WALL, Timothy, J.
Priority Data
62/786,69231.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CIRCUIT BREAKER HAVING INTERNAL TRANSIENT RECOVERY VOLTAGE CAPACITOR ASSEMBLY
(FR) DISJONCTEUR COMPORTANT UN ENSEMBLE CONDENSATEUR DE TENSION DE RÉCUPÉRATION TRANSITOIRE INTERNE
Abstract
(EN)
A circuit breaker having at least one capacitor assembly connected in parallel across a contact of the circuit breaker. The capacitor assembly can be housed with the contact within a sealed enclosure of the circuit breaker. The enclosure can be configured to house an insulating medium that is configured to reduce or quench an arc(s) that may form at least when the contact of the circuit breaker is displaced from a closed position to an open position. The capacitor assembly, which includes a transient recovery voltage (TRV) capacitor, can be configured to delay terminal fault and short line fault TRV and the rate of rise of the initial TRV (ITRV) that can appear across the open contact of the circuit breaker. By being connected in parallel across the contact, the capacitor assembly can be connected to either side of the contact, regardless of whether the contact is in an open position or closed position.
(FR)
L'invention concerne un disjoncteur comportant au moins un ensemble condensateur connecté en parallèle aux bornes d'un contact du disjoncteur. L'ensemble condensateur peut être logé avec le contact à l'intérieur d'une enceinte étanche du disjoncteur. L'enceinte peut être conçue pour loger un milieu isolant qui est conçu pour réduire ou éteindre un ou plusieurs arcs qui peuvent se former au moins lorsque le contact du disjoncteur est déplacé d'une position fermée à une position ouverte. L'ensemble condensateur, qui comprend un condensateur de tension de récupération transitoire (TRV), peut être conçu pour retarder une TRV de défaut de borne et une TRV de défaut de ligne courte et la vitesse de montée de la TRV initiale (ITRV) qui peut apparaître aux bornes du contact ouvert du disjoncteur. En étant connecté en parallèle aux bornes du contact, l'ensemble condensateur peut être connecté d'un côté ou l'autre du contact, indépendamment du fait que le contact soit dans une position ouverte ou dans une position fermée.
Also published as
Latest bibliographic data on file with the International Bureau