Hybrid circuit breaker
AssigneeABB Research Ltd.
InventorsGeorgios Demetriades, Anshuman Shukla
Life of this patent
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Abstract
A hybrid circuit breaker, including a first circuit that includes: a main current path which includes a mechanical switch element, a commutation path arranged in parallel with the main current path and including a controllable semi-conductor switch element. The breaker also includes a first capacitor provided in the commutation path in series with the controllable semi-conductor switch element, and a second circuit, arranged in series with the first circuit and including a second capacitor and an inductance-generating element arranged in series with each other.
Claims9
A hybrid circuit breaker, comprising a first circuit that comprises:
- a main current path which comprises a mechanical switch element, and
- at least one commutation path arranged in parallel with the main current path and comprising a controllable semi-conductor switch element, and
- characterised in that it further comprises
- a first capacitor provided in said commutation path in series with said controllable semi-conductor switch element, and
- a second circuit, arranged in series with the first circuit and comprising a second capacitor and an inductance-generating element arranged in series with each other.
An electric power supply system, characterised in that it comprises a hybrid circuit breaker comprising a first circuit that comprises:
- a main current path which comprises a mechanical switch element, and
- at least one commutation path arranged in parallel with the main current path and comprising a controllable semi-conductor switch element, and
- characterised in that it further comprises
- a first capacitor provided in said commutation path in series with said controllable semi-conductor switch element, and
- a second circuit, arranged in series with the first circuit and comprising a second capacitor and an inductance-generating element arranged in series with each other.
Dependencies are inferred from the claim text.