Switch arrangement for medium and high-voltage switching devices
AssigneeABB Technology AG
InventorDietmar Gentsch
Life of this patent
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Abstract
The disclosure relates to a switch arrangement for medium and high-voltage switching devices having switches, with which at least one of the contacts is a moving contact which can be actuated by an ignition charge. For a plurality of switches, a dedicated ignition device is provided for each switch, and the ignition devices are coupled together with regard to the time of the ignition.
Claims16
A switch arrangement for voltage switching devices, comprising:
- a plurality of switches, each switch including a moving contact for activation by a propellant charge and a contact that is a fixed contact;
- a dedicated electrical ignition device for the propellant charge of each switch;
- and
- a coupling for igniting the propellant charge for each switch substantially at a same time, wherein the plurality of switches are connected in series, and the propellant charge of a first switch being directly electrically ignited, wherein the electrical ignition device of a second or following switch is galvanically isolated from the first switch.
A method for operation of voltage switching devices including a plurality of switches, each switch including a moving contact which can be activated by a propellant charge and a contact that is a fixed contact, the method comprising:
- providing a dedicated electrical ignition device for the propellant charge of each switch;
- coupling the ignition devices together to perform ignition of the propellant charge of each switch at substantially a same time;
- connecting the plurality of switches in series;
- arranging the propellant charge of a first switch to be directly electrically ignited;
- and
- galvanically isolating the electrical ignition device of a second or following switch from the first switch.
Dependencies are inferred from the claim text.