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1. WO2020136545 - METHOD AND DEVICE FOR MONITORING OPERATION OF A SWITCHING DEVICE FOR CONTROLLED SWITCHING APPLICATIONS

Publication Number WO/2020/136545
Publication Date 02.07.2020
International Application No. PCT/IB2019/061266
International Filing Date 23.12.2019
IPC
H01H 9/56 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/-H01H7/104
54Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
56for ensuring operation of the switch at a predetermined point in the ac cycle
H01H 33/59 2006.01
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
59Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
H01H 71/12 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
71Details of the protective switches or relays covered by groups H01H73/-H01H83/115
10Operating or release mechanisms
12Automatic release mechanisms with or without manual release
H01H 7/16 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
7Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
16Devices for ensuring operation of the switch at a predetermined point in the ac cycle
CPC
H01H 33/593
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
59Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
593for ensuring operation of the switch at a predetermined point of the ac cycle
H01H 7/16
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
7Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
16Devices for ensuring operation of the switch at a predetermined point in the ac cycle
H01H 71/125
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
12Automatic release mechanisms with or without manual release
123using a solid-state trip unit
125characterised by sensing elements, e.g. current transformers
H01H 9/56
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
54Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
56for ensuring the operation of the switch at a predetermined point in the cycle
H01H 9/563
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
54Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
56for ensuring the operation of the switch at a predetermined point in the cycle
563for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing
Applicants
  • ABB POWER GRIDS SWITZERLAND AG [CH]/[CH]
Inventors
  • KANTA, Soumya
  • PARIKH, Urmil
  • STANEK, Michael
Priority Data
20184104925927.12.2018IN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND DEVICE FOR MONITORING OPERATION OF A SWITCHING DEVICE FOR CONTROLLED SWITCHING APPLICATIONS
(FR) PROCÉDÉ ET DISPOSITIF DE SURVEILLANCE DU FONCTIONNEMENT D'UN DISPOSITIF DE COMMUTATION POUR DES APPLICATIONS DE COMMUTATION COMMANDÉES
Abstract
(EN)
The invention relates to monitoring operation of a switching device 106 in a power system, where a load 104 is connected to a power source 102 through the switching device 106. The load has windings, with coupling between at least one of two or more phases of a winding, and two or more windings of the load 104. The method includes obtaining measurements of at least one of voltages and currents, at one or more of a source and load side. Further, the method determines an electrical parameter associated with electrical switching of one or more poles. The parameter for each pole is determined based on at least one of voltage measurements at the source and load side, and line measurements associated with at least one winding. The values of the electrical parameter are monitored to determine the switching instant of the pole, for determining mechanical operating time deviation for estimating future switching instants.
(FR)
L'invention concerne la surveillance du fonctionnement d'un dispositif de commutation 106 dans un système d'alimentation, une charge étant connectée à une source d'alimentation 102 par l'intermédiaire du dispositif de commutation 106. La charge a des enroulements, avec couplage entre au moins l'une d'au moins deux phases d'un enroulement, et deux ou plusieurs enroulements de la charge 104. Le procédé comprend l'obtention de mesures des tensions et/ou courants, au niveau d'une ou plusieurs d'une source et d'un côté de charge. En outre, le procédé détermine un paramètre électrique associé à la commutation électrique d'un ou de plusieurs pôles. Le paramètre pour chaque pôle est déterminé sur la base d'au moins l'une des mesures de tension au niveau de la source et du côté de charge, et des mesures de ligne associées à au moins un enroulement. Les valeurs du paramètre électrique sont surveillées pour déterminer l'instant de commutation du pôle, pour déterminer un écart de temps de fonctionnement mécanique pour estimer des instants de commutation futurs.
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