Protection Of An Inductive Element
AssigneeABB Schweiz AG
InventorsJan Svensson, Kalle Ilves, Minos Beniakar, Theodore Soong
Life of this patent
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Abstract
A protection arrangement for a multiphase uninterruptible power supply system including a vacuum circuit breaker connected in series with an inductive element, where the inductive element includes, for every phase, two series-connected magnetically coupled windings separated by a tap point. The protection arrangement includes one first group of protective components per phase, each first group including a first protective component having a first end connected to a link between the vacuum circuit breaker and the inductive element and a second end connected to a corresponding tap point, where at least one protective component in each first group is a surge arrester.
Claims19
A protection arrangement for a multiphase uninterruptible power supply system comprising a vacuum circuit breaker connected in series with an inductive element, said inductive element including, for every phase, two series-connected magnetically coupled windings separated by a tap point, the protection arrangement including one first group of protective components per phase, each first group including:
- a first protective component having a first end connected to a link between the vacuum circuit breaker and the inductive element, and a second end connected to a corresponding tap point, where at least one protective component in each first group is a surge arrester.
A multiphase uninterruptible power supply system comprising a vacuum circuit breaker connected in series with an inductive element (443) the inductive element having, for every phase, two series-connected magnetically coupled windings separated by a tap point as well as a protection arrangement including:
- a vacuum circuit breaker connected in series with an inductive element, said inductive element including, for every phase, two series-connected magnetically coupled windings separated by a tap point the protection arrangement including one first group of protective components per phase, each first group including:
- a first protective component having a first end connected to a link between the vacuum circuit breaker and the inductive element, and a second end connected to a corresponding tap point, where at least one protective component in each first group is a surge arrester.
Dependencies are inferred from the claim text.