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1. WO2018140188 - PNEUMATICALLY OPERABLE CURRENT PROTECTION DEVICE FOR A FAULT CURRENT LIMITER

Publication Number WO/2018/140188
Publication Date 02.08.2018
International Application No. PCT/US2017/068503
International Filing Date 27.12.2017
IPC
H02H 9/02 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
9Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
02responsive to excess current
CPC
H01B 5/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
5Non-insulated conductors or conductive bodies characterised by their form
02Single bars, rods, wires, or strips
H01H 33/004
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
002Very heavy-current switches
004making use of superconducting contacts
H01H 33/32
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
28Power arrangements internal to the switch for operating the driving mechanism
30using fluid actuator
32pneumatic
H01H 33/66
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
66Vacuum switches
H01H 33/666
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
66Vacuum switches
666Operating arrangements
H01H 71/10
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
71Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
10Operating or release mechanisms
Applicants
  • VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC. [US]/[US]
Inventors
  • NICKERSON, Scott W.
  • STANLEY, Charles L.
  • MORRELL, David
  • FERSAN, Semaan
  • JAZEBI, Saeed
  • EMMANUEL, George
Agents
  • ROY, Ronnen
Priority Data
15/418,91130.01.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PNEUMATICALLY OPERABLE CURRENT PROTECTION DEVICE FOR A FAULT CURRENT LIMITER
(FR) DISPOSITIF DE PROTECTION CONTRE LE COURANT À COMMANDE PNEUMATIQUE POUR LIMITEUR DE COURANT DE DÉFAUT
Abstract
(EN)
Embodiments of the disclosure provide a current protection device for a fault current limiter, the current protection device including a detection circuit electrically coupled between a current transformer and a pneumatic timer, and an electrical vacuum interrupter (EVI) coupled to a pneumatic cylinder. In some embodiments, the EVI includes a set of breaker contacts, wherein the pneumatic timer is communicatively coupled with the pneumatic cylinder to actuate a moveable contact of the set of breaker contacts. In some embodiments, the detection circuit is configured to detect a current of the current transformer, and to provide a control signal to the pneumatic cylinder to open or close the set of breaker contacts based on the detected current.
(FR)
Des modes de réalisation de la présente invention concernent un dispositif de protection contre le courant pour un limiteur de courant de défaut, le dispositif de protection contre le courant comprenant un circuit de détection couplé électriquement entre un transformateur de courant et un temporisateur pneumatique, et un interrupteur à vide électrique (EVI) couplé à un cylindre pneumatique. Dans certains modes de réalisation, l'EVI comprend un ensemble de contacts de disjoncteur, le temporisateur pneumatique étant couplé en communication au cylindre pneumatique pour actionner un contact mobile de l'ensemble de contacts de disjoncteur. Dans certains modes de réalisation, le circuit de détection est configuré pour détecter un courant du transformateur de courant, et pour fournir un signal de commande au cylindre pneumatique pour ouvrir ou fermer l'ensemble de contacts de disjoncteur sur la base du courant détecté.
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