Contact drive arrangement
AssigneeABB Technology AG
InventorsHenrik Lohrberg, Joachim Eggers
Life of this patent
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Abstract
The disclosure relates to a contact drive arrangement for the movement of at least one contact in high-voltage switchgear systems having a contact drive and having an auxiliary switch, which has at least two auxiliary contacts. The contact drive works together with the at least one contact and with a first auxiliary contact. Furthermore, a delay drive is connected functionally in parallel with the contact drive, and the delay drive works together with a second auxiliary contact. The first and second auxiliary contact are electrically connected in series. In addition, the delay drive has a damping element, and by means of the damping element the time for a switching operation is extended in comparison with the time for a switching operation with the contact drive.
Claims18
Contact drive arrangement for the movement of at least one contact in high-voltage switchgear systems having a contact drive and having an auxiliary switch, which has at least two auxiliary contacts, the contact drive working together with the at least one contact and with a first auxiliary contact, wherein a delay drive is connected functionally in parallel with the contact drive, wherein the delay drive works together with a second auxiliary contact, wherein the first and second auxiliary contact are electrically connected in series, wherein the delay drive has a damping element, and wherein by means of the damping element the time for a switching operation is extended in comparison with the time for a switching operation with the contact drive.
A method of arrangement for movement of at least one contact in high-voltage switchgear systems having a contact drive and having an auxiliary switch, which has at least two auxiliary contacts, the contact drive working together with the at least one contact and with a first auxiliary contact, the method comprising:
- connecting a delay drive functionally in parallel with the contact drive, the delay drive having a damping element, wherein the delay drive works together with a second auxiliary contact;
- electrically connecting the first and second auxiliary contacts in series;
- and
- extending the time for a switching operation in comparison with the time for a switching operation with the contact drive, by using the damping element.
Dependencies are inferred from the claim text.