A cutout mountable recloser that remains latched to the cutout until the recloser is selectively mechanically unlatched via at least rotation of a driver by an operator. During installation, including while the recloser is being latched to the cutout, the recloser can be in an open condition. Latching of the recloser to the cutout can include increasing a tension force exerted by the cutout on the recloser by increasing a linear distance between first and second terminals of the recloser. With the opened recloser latched to the cutout, the recloser can be mechanically closed via a release of stored energy from a closing mechanism. The recloser can selectively be mechanically unlatched from the cutout by a subsequent reduction in the linear distance between first and second terminals of the recloser, which can reduce the tension force being exerted by the cutout.

This limiter pole (B) for a multipole DC electrical switch (2) comprises a compartment in which an input terminal and an output terminal for a direct electric current are provided, along with a first electrical contact connected to the input terminal and a second electrical contact connected to the output terminal, third and fourth electrical contacts connected to one another in series, the third and fourth contacts being capable of being moved simultaneously relative to the first and second electrical contacts, respectively, between a closed position, in which the first and third contacts and the second and fourth contacts make contact with one another so as to allow the direct electric current to flow between the input terminal and the output terminal, and an open position, in which said contacts are located away from one another, interrupting the flow of the current between the input terminal and the output terminal. The limiter pole (B) comprises a first electric arc formation chamber in which the first and third electrical contacts are placed, a second electric arc formation chamber in which the second and fourth electrical contacts are placed, and first and second electric arc extinguishing chambers which are associated with the first and second electric arc formation chambers, respectively.

A circuit breaker having a movable tulip contact and a vacuum interrupter together connecting a first terminal to a second terminal of the circuit breaker. The tulip contact has a first end having contact fingers removably attached to a stationary contact of the first terminal, and a second end that is electrically connected to the second terminal. The vacuum interrupter has a first electrode assembly that is electrically connected to the first terminal, and a second electrode assembly that is electrically connected to the second terminal. The tulip contact and stationary contact provide a first conductive path from the first terminal to the second terminal when the tulip contact is connected to the stationary contact. The vacuum interrupter provides a second conductive path from the first terminal to the second terminal when the vacuum interrupter is in a closed position.

A switching apparatus includes: a body including: a sidewall that extends from a first end to a second end, the sidewall defining an interior space; and a plurality of electrically insulating sheds that extend radially outward from an exterior surface of the sidewall; a circuit interrupter in the interior space of the body; a first terminal electrically connected to the circuit interrupter;

and a second terminal electrically connected to the circuit interrupter. The switching apparatus is configured to be mechanically connected to at least two different types of mounting structures.

A three-pole polymeric switch with command and protection electronics integrated into a standalone device, wherein the medium voltage interruption element, the command, control and power supply circuits are self-powered by the primary network and installed in the potential. Protection, sectioning, fault indication and communication functions are integrated into the standalone device for use both as an automation device integrated into control centers, and as a protection device against transient currents from short-circuits. The device makes it possible to either reduce the interruption time of electric circuits, thus reducing interruptions during transient events, or isolate stretches when permanent events occur. The device contains a long-range communication radio, allowing long-distance communication by sending its status to control centers, reducing the time required for identifying problematic overhead distribution sections. The device's low cost, low weight and easy installation enables the expansion of automatic control and supervision solutions of overhead electric power distribution lines.

A three-pole polymeric switch with command and protection electronics integrated into a standalone device, wherein the medium voltage interruption element, the command, control and power supply circuits are self-powered by the primary network and installed in the potential. Protection, sectioning, fault indication and communication functions are integrated into the standalone device for use both as an automation device integrated into control centers, and as a protection device against transient currents from short-circuits. The device makes it possible to either reduce the interruption time of electric circuits, thus reducing interruptions during transient events, or isolate stretches when permanent events occur. The device contains a long-range communication radio, allowing long-distance communication by sending its status to control centers, reducing the time required for identifying problematic overhead distribution sections. The device's low cost, low weight and easy installation enables the expansion of automatic control and supervision solutions of overhead electric power distribution lines.

A circuit breaker having a movable tulip contact and a vacuum interrupter together connecting a first terminal to a second terminal of the circuit breaker. The tulip contact has a first end having contact fingers removably attached to a stationary contact of the first terminal, and a second end that is electrically connected to the second terminal. The vacuum interrupter has a first electrode assembly that is electrically connected to the first terminal, and a second electrode assembly that is electrically connected to the second terminal. The tulip contact and stationary contact provide a first conductive path from the first terminal to the second terminal when the tulip contact is connected to the stationary contact. The vacuum interrupter provides a second conductive path from the first terminal to the second terminal when the vacuum interrupter is in a closed position.

This limiter pole (B) for a multipole DC electrical switch (2) comprises a compartment in which an input terminal and an output terminal for a direct electric current are provided, along with a first electrical contact connected to the input terminal and a second electrical contact connected to the output terminal, third and fourth electrical contacts connected to one another in series, the third and fourth contacts being capable of being moved simultaneously relative to the first and second electrical contacts, respectively, between a closed position, in which the first and third contacts and the second and fourth contacts make contact with one another so as to allow the direct electric current to flow between the input terminal and the output terminal, and an open position, in which said contacts are located away from one another, interrupting the flow of the current between the input terminal and the output terminal. The limiter pole (B) comprises a first electric arc formation chamber in which the first and third electrical contacts are placed, a second electric arc formation chamber in which the second and fourth electrical contacts are placed, and first and second electric arc extinguishing chambers which are associated with the first and second electric arc formation chambers, respectively.

A cutout mountable recloser that remains latched to the cutout until the recloser is selectively mechanically unlatched via at least rotation of a driver by an operator. During installation, including while the recloser is being latched to the cutout, the recloser can be in an open condition. Latching of the recloser to the cutout can include increasing a tension force exerted by the cutout on the recloser by increasing a linear distance between first and second terminals of the recloser. With the opened recloser latched to the cutout, the recloser can be mechanically closed via a release of stored energy from a closing mechanism. The recloser can selectively be mechanically unlatched from the cutout by a subsequent reduction in the linear distance between first and second terminals of the recloser, which can reduce the tension force being exerted by the cutout.

An arrangement and a method for switching high currents include at least one vacuum switching path and at least one rated-current contact switching path. The at least two switching paths are electrically connected in parallel. One current path for a rated current is routed over at least one rated-current contact of said rated-current contact switching path, and a parallel current path for a short-circuit current is routed over at least one contact of a vacuum tube of the vacuum switching path.