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公开(公告)号：EP4016575A1
公开(公告)日：2022-06-22
申请号：EP20214064.6
申请日：2020-12-15
Applicant: ABB Schweiz AG
Inventor： Strassel, Thorsten , Antoniazzi, Antonello , Abplanalp, Markus , Delachaux, Thierry
IPC: H01H9/54
Abstract: A switching apparatus for an electric grid comprising:
- first and second electric terminals for electrical connection with corresponding grid portions;
- a first electric branch comprising one or more switching devices of electromechanical type, each of which has electric contacts that are mechanically coupled or separated to conduct or block a current, respectively;
- a second electric branch comprising a plurality of switching devices of the solid-state type, each of which includes one or more switching components based on semiconductor materials. Each solid-state switching device is adapted to switch between an on-state, at which said switching device conducts a current, and an off-state, at which said switching device blocks a current.
The above-mentioned second electric branch is electrically connected in parallel with said first electric branch between said first and second electric terminals.
The switching apparatus comprises a current blocking circuit adapted to block a current flowing along said second electric branch. Said current blocking circuit includes a first switching device of solid-state type and a first electronic circuit electrically connected in parallel to said first switching device of solid-state type.
The switching apparatus further comprises a current limiting circuit adapted to limit a current flowing along said second electric branch. Said current limiting circuit is electrically connected in series with said current blocking circuit and it includes a second switching device of solid-state type and a second electronic circuit electrically connected in parallel to said second switching device of solid-state type.-
公开(公告)号：EP4016574A1
公开(公告)日：2022-06-22
申请号：EP20214048.9
申请日：2020-12-15
Applicant: ABB Schweiz AG
Inventor： Strassel, Thorsten , Antoniazzi, Antonello , Abplanalp, Markus , Delachaux, Thierry
IPC: H01H9/54
Abstract: A switching apparatus for an electric grid comprising:
- first and second electric terminals for electrical connection with corresponding grid portions;
- a first electric branch comprising a plurality of switching devices having electric contacts that can be mechanically coupled or separated to conduct or block a current, respectively;
- a second electric branch comprising one or more switching devices of solid-state type including one or more switching components based on semiconductor materials, each switching device being adapted to switch between an on-state, at which said switching device conducts a current, and an off-state, at which said switching device blocks a current, said second electric branch being electrically connected in parallel with said first electric branch between said first and second electric terminals;
The first electric branch comprises:
- a first switching device capable of switching between a closed state, at which said first switching device conducts a current, and an open state, at which said first switching device blocks a current, said first switching device switching from said closed state to said open state upon being driven by a current flowing along said first switching device and without receiving an external control signal or an external power supply, said first switching device switching from said closed state to said open state, when the current flowing along said switching apparatus exceeds a corresponding predefined threshold value or when the changing rate of the current flowing along said switching apparatus exceeds a corresponding predefined threshold value or upon a combination of these two conditions;
- a second switching device electrically connected in series with said first switching device and capable of switching between a closed state, at which said second switching device conducts a current, and an open state, at which said second switching device blocks a current, said second switching device switching between said closed state and said open state, upon receiving a corresponding input control signal.-
公开(公告)号：EP3570299A1
公开(公告)日：2019-11-20
申请号：EP18173212.4
申请日：2018-05-18
Applicant: ABB Schweiz AG
Inventor： Donzel, Lise , Hemrle, Jaroslav , Strassel, Thorsten , Herrmann, Lorenz , Kaufmann, Lilian
Abstract: An energy absorption device (1) for a circuit breaker, in particular a solid-state or a hybrid circuit breaker, includes an energy absorber (20) arranged within an enclosure (10) and a two-phase cooling arrangement. The two-phase cooling arrangement has one or more fluid distribution units (110) configured to direct a cooling fluid in a liquid state toward the energy absorber (20), the energy absorber (20) being cooled due to evaporation of the cooling fluid.
A circuit breaker, in particular solid-state or hybrid circuit breaker, includes one or more energy absorption devices (2, 3, 4).
A method for two-phase cooling of an energy absorber (20) of a circuit breaker, in particular a solid-state or hybrid circuit breaker, includes: after a switching operation of the circuit breaker, directing a cooling fluid in a liquid state toward the energy absorber (20). Thereby, the energy absorber (20) is cooled due to evaporation of the cooling fluid.-
公开(公告)号：EP3389070A1
公开(公告)日：2018-10-17
申请号：EP17166488.1
申请日：2017-04-13
Applicant: ABB Schweiz AG
Inventor： Gati, Rudolf , Bator, Matthias , Prestini, Osvaldo , Cisana, Pierluigi , Strassel, Thorsten
Abstract: An arc chamber (10) for a DC circuit breaker comprises an entry side (E) adapted to receive an electric arc (50), which was generated outside of the arc chamber (10) and which propagates in a forward direction (F), a plurality of stacked splitter plates (11a ... 11f), and at least one inhibitor barrier (20a, 20b). The at least one inhibitor barrier (20a, 20b) is arranged on the entry side (E) to inhibit a reverse propagation of the electric arc (50) out of the arc chamber (10) in a reverse direction (R).
DC circuit breaker comprising an arc chamber. Use of an arc chamber with a circuit breaker in a DC electrical system.
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