Various embodiments of the teachings herein include a grid influencing system for a power supply grid comprising: a current-conducting grid influencing component; and a vacuum circuit breaker including a vacuum circuit breaker tube containing an at least partly integrated pre-arcing device for actively generating an arc between two contacts.

A method for producing an electrical switch contact arrangement for a vacuum circuit breaker includes the following steps: a) providing two electrical contact pieces made of copper or a copper alloy; b) coating the electrical contact pieces with aluminum or an aluminum alloy, the coating of the contact pieces taking place by means of a cold gas spraying method; c) welding each of the sides coated in method step b) to a current transfer contact; and d) arranging the units obtained in method step b) inside the vacuum circuit breaker. There is also described an electrical switch contact arrangement for a vacuum circuit breaker with the contact pieces produced by the method according to the invention.

A method for producing an electrical switch contact arrangement for a vacuum circuit breaker includes the following steps: a) providing two electrical contact pieces made of copper or a copper alloy; b) coating the electrical contact pieces with aluminum or an aluminum alloy, the coating of the contact pieces taking place by means of a cold gas spraying method; c) welding each of the sides coated in method step b) to a current transfer contact; and d) arranging the units obtained in method step b) inside the vacuum circuit breaker. There is also described an electrical switch contact arrangement for a vacuum circuit breaker with the contact pieces produced by the method according to the invention.

The invention relates to a device for interrupting or closing an electrical circuit. The invention further relates to a method of interrupting or closing an electrical circuit. An inventive circuit interruption device for interrupting an electrical circuit contains a contact piece comprising a ceramic material.

The invention relates to a device for interrupting or closing an electrical circuit. The invention further relates to a method of interrupting or closing an electrical circuit. An inventive circuit interruption device for interrupting an electrical circuit contains a contact piece comprising a ceramic material.

A part of a current path is for an electric switching device. In an embodiment, the part of the current path was produced in layers by way of a 3D printing method.

A reed switch including a cylindrical enclosure with two ends, a first blade and a second blade is disclosed. The first blade has a first lead, a first web, and a first contact, and the first web is bent at a first angle as compared to the first lead. The second blade has a second lead, a second web, and a second contact, and the second web is bent at a second angle as compared to the second lead. The first contact is disposed adjacent to the second contact with a gap between them.

A ceramic reed switch includes a ceramic tube, and a first end cover and a second end cover, a first pin is disposed on an outer side of the first end cover, a first magnetic reed is disposed on an inner side of the first end cover, the first magnetic reed forms a cantilever beam structure on the first end cover, a second pin is disposed on an outer side of the second end cover, a second magnetic reed is disposed on an inner side of the second end cover, the second magnetic reed forms a cantilever beam structure on the second end cover, free ends of the first magnetic reed and the second magnetic reed are overlapped in the ceramic tube and form an air gap, and a contact is disposed on an overlapped end of the first magnetic reed and the second magnetic reed.

A plug-in contact assembly suitable for automatic transfer switches includes a contact holder, two moving contact pieces disposed apart from each other, a moving contact piece bracket and a biasing spring; the contact holder holds the moving contact piece bracket and the biasing spring therein; and the two moving contact pieces disposed apart from each other are held in place relative to the contact holder under the joint action of the biasing spring and the moving contact piece bracket; characterized in that, two ends of each moving contact piece are each provided with a moving contact thereon by means of welding.

A switch device includes: an operation unit including a first switch, a second switch, a first resistor, a second resistor, and a first terminal; and a control unit including a second terminal coupled to the first terminal. A series circuit of the first switch and the first resistor and a series circuit of the second switch and the second resistor are coupled between the first terminal and a ground. The control unit monitors a potential of the first terminal which changes in response to on/off of the first and second switches via the second terminal, and determines the operation state of each switch based on the potential. A contact of the first switch is configured of a contact in which a resistance value between contacts at the time of opening and closing changes more sharply as compared with a contact of the second switch.