86results about "Explosion switches closing" patented technology

An assembly including a support housing and an actuator device. The actuator device includes an extendable initiator cup including at least one non-random fold and at least in part defining a storage chamber containing a reactive charge reactable to produce reaction products. The extendable initiator cup longitudinally extends from a first length to a second, greater length upon reaction initiation of the reactive charge. The extendable initiator cup is at least partially disposed within a longitudinally extending bore of the support housing. The support housing is effective to limit lateral expansion of the extendable initiator cup upon reaction initiation of the reactive charge. The assembly can include an electrical conductive member or an electrical switch. The extendable initiator cup can extend to sever the electrical conductive member or disengage the electrical switch, thereby interrupting the conduction of electricity through an electrical system. Alternatively, the extendable initiator cup can extend to engage the electrical switch thereby allowing the conduction of electricity through an electrical system.

A shorting switch eliminates arcing faults in power distribution equipment. The shorting switch includes an insulating tubular housing; a first contact; a second contact; and an insulator between the first and second contacts in the insulating housing. The insulator prevents electrical connection of the first and second contacts. First and second terminals are respectively electrically connected to the first and second contacts. A wave spring mechanism moves the first and second contacts toward closure. A slug and an activated charge mechanism drive the insulator from between the first and second contacts, in order to electrically connect the first and second contacts.

A conduction breaking device is provided that uses gas from a gas generator to move a cutter block in the thickness direction of a cuttable portion, thereby cutting the cuttable portion between the moving cutter block and a cutting edge portion of a cutting chamber. The cutter block is attached to the cuttable portion such that, before generation of gas by the gas generator, a part of the cutter block is located in the cutting chamber and at a position close to the cutting edge portion in a direction along the surface of the cuttable portion.

A Voltage Source Converter has a series connection of switching assemblies, in which each switching assembly has an electrically conducting plate member carrying a plurality of semiconductor chips each having at least a semiconductor device of turn-off and a free-wheeling diode connected in parallel therewith. Said chips are connected in parallel with each other by each being connected by at least one individual conductor member to a said plate member of an adjacent switching assembly of said series connection. Each switching assembly has a mechanical switch configured to be open under normal operation of the switching assembly and configured to enable connection of said plate member of the switching assembly to the plate member of an adjacent switching assembly for bypassing said semiconductor chips of the switching assembly to which the mechanical switch belongs in the case of occurrence of a short circuit current through a semiconductor chip of the switching assembly.

An arc flash arrester includes a fixed contact; a movable contact; an actuator mechanism structured to close the movable and fixed contacts; and insulation disposed between the fixed and movable contacts in an open position of the arc flash arrester. The insulation is selected from the group consisting of liquid insulation; SF6; a gas, other than SF6 or air, at a pressure of at least about one atmospheric pressure; and solid insulation.

A switchgear assembly includes a vacuum interrupt chamber and a short-circuiting system arranged in the vacuum interrupt chamber. To enable rapid switching with physically simple means, a vacuum area of the vacuum interrupt chamber in which a fixed contact piece is placed is subdivided via a membrane, which is provided with a breaking line and which can be penetrated by a moving piston system to the contact piece during switching. The switchgear assembly can be utilized in a low-voltage, medium-voltage or high-voltage assembly.

A circuit breaker for multi-phase power includes an opening-closing apparatus configured to open and close each phase of the multiphase power, a detection unit configured to detect a fault current in at least one phase of an electrical installation, a plurality of connecting bars disposed on a load side of the circuit breaker, and a fastening device disposed on the connecting bars and configured to detachably fasten a short circuiter to the connecting bars, the short circuiter configured to create a short circuit between the connecting bars when a fault is detected by the detection unit. The option proposed according to the invention of installing a short circuiter means that the circuit breaker is fully operational, either with or without the installation of a short circuiter.

A vacuum arc interrupter that includes a vacuum chamber assembly and a pressure chamber assembly. The vacuum chamber assembly includes a vacuum chamber and a first conductor which is structured to be coupled to a circuit. The first conductor is disposed within the vacuum chamber. The pressure chamber assembly has a second conductor structured to be coupled to a ground, a pressure chamber, a gas generation device and a bullet assembly. The pressure chamber assembly disposed adjacent to the vacuum chamber assembly. The gas generation device coupled to, and in fluid communication with the pressure chamber. The bullet assembly is disposed in the pressure chamber and structured to move between a first position, where the bullet assembly is spaced from the first and second conductors, and a second position, where the bullet assembly contacts, and is in electrical communication with, the first and second conductors.

The arrangement for disconnecting at least one of a plurality of battery modules in an automotive battery comprises a device arranged to detect that at least one battery module is to be disconnected, and a bypass switch arranged at each battery module, wherein the bypass switch arranged at the detected at least one battery module is controllable to bypass the at least one detected battery module via a bypass path. The arrangement further comprises a disconnect switch arranged at each battery module, wherein the disconnect switch arranged at the at least one bypassed battery module is controllable to disconnect the at least one detected battery module from remaining battery modules, either simultaneously as, or after, the bypassing of the detected battery module.

The disclosure relates to a method for quenching a fault arc in a medium-voltage and high-voltage switchgear assembly, in which at least one shorting element is connected between the phases of a three-phase distribution board. In order to allow more reliable fault arc quenching in this case, the disclosure proposes that the fault arc is detected by means of sensors and an explosive charge which acts directly on the shorting switching element fires the shorting switching element at a conical contact structure which is connected to the three-phase conductors and is configured in a complementary manner to the shorting switching element, in such a manner that the complementary contours of the shorting switching element and of the three-phase conductors result in self-locking retention in the shorting position, without any holding force.

A conduction breaking device is provided that uses gas from a gas generator to move a cutter block in the thickness direction of a cuttable portion, thereby cutting the cuttable portion between the moving cutter block and a cutting edge portion of a cutting chamber. The cutter block is attached to the cuttable portion such that, before generation of gas by the gas generator, a part of the cutter block is located in the cutting chamber and at a position close to the cutting edge portion in a direction along the surface of the cuttable portion.

The present invention relates to an electric switch (10) including a hollow body (12) defining a cavity (14), an actuator (16), and a slide (18) mounted in said cavity (14). Under the action of the actuator (16), the slide (18) is suitable for moving from a first position, in which at least one conducting portion (19) of the slide (18) is electrically connected to at least two primary electrically conductive contacts (20a, 20b) leading laterally into said cavity (14) by a breakable permanent electric junction, into a second position, in which at least one of said primary electrically conductive contacts (20a, 20b) is no longer electrically connected to said conducting portion (19) of the slide (18).

A vacuum arc interrupter that includes a vacuum chamber assembly and a pressure chamber assembly. The vacuum chamber assembly includes a first, fixed contact disposed within the vacuum chamber and a second, movable contact disposed within the vacuum chamber. A rod is coupled to, and in electrical communication with, the second contact. The rod is structured to move between a first position wherein the second contact is spaced from the first contact and a second position where the first and second contacts are in electrical communication with each other. The pressure chamber assembly has a gas generation device and a cylindrical barrel defining a pressure chamber with a first end and a second end. The barrel second end has an opening. A piston assembly is disposed in the pressure chamber and coupled to the rod, which passes through the second, open end. The gas generation device is coupled to the pressure chamber assembly and in fluid communication with the barrel and the piston assembly. Upon generation of a gas by the gas generation device, the piston moves within the barrel causing the rod to move from the first position to the second position.

A circuit breaker for multi-phase power includes an opening-closing apparatus configured to open and close each phase of the multiphase power, a detection unit configured to detect a fault current in at least one phase of an electrical installation being protected by the circuit breaker, a plurality of connecting bars disposed on a load side of the circuit breaker, and a short circuiter disposed on the connecting bars and configured to produce a short circuit between the connecting bars if a fault current is detected by the fault-current detection unit. When a fault current occurs, a tripping signal can be transmitted by the detection system to the short circuiter. The circuit breaker is also fully operational, even without a function-activated short circuiter.

A normally closed electrical switch having a sliding assembly actuated on opening, for example by a pyrotechnic gas generator. Prior to actuation, a conductive portion of the sliding assembly (21) is in tight contact with two axially offset coaxial rings (13a, 14a) belonging respectively to two electrically conductive pads (13, 14), and after the actuator is triggered, the upstream pad (13) is released from the conductive portion of the sliding assembly. According to the invention, the sliding assembly comprises a tube provided with a slot extending along the entire length of same, and the conductive portion of the sliding assembly consists of all or a portion of said slotted tube, the clamping force between the conductive portion and the primary electrically conductive pads being provided by the elasticity of the slotted tube.

A circuit breaker for multi-phase power includes an opening-closing apparatus configured to open and close each phase of the multiphase power, a detection unit configured to detect a fault current in at least one phase of an electrical installation being protected by the circuit breaker, a plurality of connecting bars disposed on a load side of the circuit breaker, and a short circuiter disposed on the connecting bars and configured to produce a short circuit between the connecting bars if a fault current is detected by the fault-current detection unit. When a fault current occurs, a tripping signal can be transmitted by the detection system to the short circuiter. The circuit breaker is also fully operational, even without a function-activated short circuiter.

The invention relates to a switching device applied to low voltage, medium voltage and high voltage short circuit arc extinction. The device comprises a casing, wherein a fixed contact and an air cylinder are arranged at the two ends of a casing inner chamber respectively, a piston is arranged in the air cylinder, a gas generator is arranged at the bottom of the air cylinder, a moving contact is arranged at the front end of the piston, the air cylinder, the piston and the moving contact are electrically connected, a vacuum chamber is formed in one side, close to the fixed contact, of the casing inner chamber, an anti-rebounding buckle is arranged at the front end of the fixed contact, a guide limit groove corresponding to the anti-rebounding buckle is formed in the front end of the moving contact, the front end of the anti-rebounding buckle and the guide limit groove are at an included angle beta ranging from 5 degrees to 15 degrees, a limit ring is arranged on the moving contact, the guide limit groove is formed between the limit ring and the moving contact, and when the moving contact is hit into the fixed contact, the anti-rebounding buckle is inserted into the guide limit groove. The switching device applied to low voltage, medium voltage and high voltage short circuit arc extinction has the advantage that the locking reliability is higher.

An apparatus has power semiconductor modules, which are connected to one another via connection devices so as to form a series circuit. A short-circuiting device for short-circuiting the respective power semiconductor module is assigned to each power semiconductor module. The apparatus has a reliable and at the same time cost-effective short-circuiting device. It is proposed that the short-circuiting device is a pyrotechnical / mechanical element, which has a detonation charge and a tripping device, which can be displaced by the detonation charge.

A circuit breaker for multi-phase power includes an opening-closing apparatus configured to open and close each phase of the multiphase power, a detection unit configured to detect a fault current in at least one phase of an electrical installation, a plurality of connecting bars disposed on a load side of the circuit breaker, and a fastening device disposed on the connecting bars and configured to detachably fasten a short circuiter to the connecting bars, the short circuiter configured to create a short circuit between the connecting bars when a fault is detected by the detection unit. The option proposed according to the invention of installing a short circuiter means that the circuit breaker is fully operational, either with or without the installation of a short circuiter.

In order to provide a short-circuit device (1) for the electrical bypass of an electric module having a contact arrangement, which is disposed in a switching chamber, and which has an open circuit-breaker setting, in which a current flow via the contact arrangement is interrupted, and a contact setting, in which a current flow via the contact arrangement is made possible, and having a pyrotechnic drive (10) for transferring the contact arrangement from its circuit breaker setting into its contact setting, using which a cost-effective, rapid bypass or short-circuit is made possible, wherein a large current carrying capacity is provided simultaneously, it is proposed that the switching chamber is a vacuum switching chamber (2), in which a vacuum prevails.

A mechanical switch in the form of a bypass switch assembly is arranged between two electrical conductors (busbars) and stays open during normal operation. When a cell fault happens, the fault and bypass information is transmitted to an actuator (acting as a trigger circuit) which activates inter alia a gas generator producing huge volume of gas in a very short time. The gas pressure pushes a movable member to bridge the two electrical conductors with ultrafast speed.

The disclosure relates to a voltage assembly having at least one short circuiting device in which a moving contact piece can be closed onto a fixed contact piece. In order to prevent breakdown at least two separated vacuum zones are arranged along a moving path of the fixed contact piece.

A high pressure switch for controlling electrical signals between elements of a gun for perforating hydrocarbon wells. The switch uses mechanical energy from an explosion to change from one electrical path to a second electrical path. The switch has a piston that translates from the shockwave to electrical connect a firing pin to a conductive member while opening an electrical path from the piston to the firing pin.

A Voltage Source Converter has a series connection of switching assemblies, in which each switching assembly has an electrically conducting plate member carrying a plurality of semiconductor chips each having at least a semiconductor device of turn-off and a free-wheeling diode connected in parallel therewith. Said chips are connected in parallel with each other by each being connected by at least one individual conductor member to a said plate member of an adjacent switching assembly of said series connection. Each switching assembly has a mechanical switch configured to be open under normal operation of the switching assembly and configured to enable connection of said plate member of the switching assembly to the plate member of an adjacent switching assembly for bypassing said semiconductor chips of the switching assembly to which the mechanical switch belongs in the case of occurrence of a short circuit current through a semiconductor chip of the switching assembly.

A switchgear assembly includes a vacuum interrupt chamber and a short-circuiting system arranged in the vacuum interrupt chamber. To enable rapid switching with physically simple means, a vacuum area of the vacuum interrupt chamber in which a fixed contact piece is placed is subdivided via a membrane, which is provided with a breaking line and which can be penetrated by a moving piston system to the contact piece during switching. The switchgear assembly can be utilized in a low-voltage, medium-voltage or high-voltage assembly.

A housing for a power semiconductor, providing a compartment for installation of a power semiconductor, and including a first and a second terminal. The terminals are for connection of a power semiconductor installed in the compartment, and for leading current to and from the compartment. The housing includes a contact mechanism for bypassing the compartment, the contact mechanism including at least one movable contact arranged for electrically connecting the first and second terminal, the at least one movable contact being movable between a disconnected first position and a connected second position. The contact mechanism further includes a bypass actuator arranged inside the compartment and provided for transforming a pressure from an exploding semiconductor into motion, the bypass actuator is operatively connected to the movable contact and arranged to move the movable contact from the first to the second position when subjected to the pressure of an exploding semiconductor.

The invention relates to a device for switching on and off an electric circuit comprising: a charge (5) which can be ignited, the combustion of which brings about the switching on or off of the electric circuit, ignition means for the pyrotechnic charge (5), characterised in that: the ignition means are connected to the electric circuit and the ignition means comprise a microswitch (M, M') with magnetic action for controlling the ignition of the pyrotechnic charge (5).