68results about "Circuit-breaking switches for excess currents" patented technology

The contactor comprises an electromagnetic assembly, a static contact and a movable assembly, the movable assembly comprises a movable contact, a first elastic part and a driving part which are connected, and the first elastic part is configured to generate elastic force supporting the movable assembly; the driving component is configured to generate electromagnetic driving force through a magnetic field generated by the electromagnetic assembly, and the controller is configured to control a movable contact and a static contact of the movable assembly to be closed and respond to the fact that the sensor detects that the driving component generates displacement based on electric repulsive force generated by current flowing through the movable contact and the static contact. And controlling the electromagnetic assembly to adjust the generated magnetic field so as to reduce electromagnetic driving force which is generated by the driving part according to the generated magnetic field and is opposite to the electric repulsive force, so that the movable contact is not closed with the static contact again. According to the contactor disclosed by the invention, fusion welding of the movable contact and the static contact in the short circuit process can be prevented, so that the contactor fault is avoided, and the equipment reliability is improved.

The present invention relates to the field of low-voltage electric devices, and in particular to a contact system and an electric switch device comprising the contact system. The contact system comprises a main contact structure and auxiliary contact structures which are respectively pivotally arranged and synchronously rotate; two auxiliary contact structures are respectively arranged on two radial sides of the main contact structure, and rotate synchronously with the main contact structure so that the contact system is closed or opened. The contact system has a fast breaking speed, large clearance, and a strong breaking capability.

High voltage microelectromechanical systems (MEMS) switches are described. The MEMS switches can be actively opened and closed. The switch can include a beam coupled to an anchor on a substrate by one or more hinges. The switch can include control electrodes, disposed on a surface of the substrate, for electrically controlling the beam. The anchor is asymmetrically positioned with respect to the two ends of the beam and is electrically connected to a middle electrode. A stopper serves as a pivot point during actuation of the switch to reduce the mechanical stress on the hinges.

A moving contact mechanism with a contact support that rotates around a third axis, a moving contact pivotable around a contact axis, and both ends of the contact spring are a third end of the spring and a fourth end of the spring, respectively, which are rotatably connected to the moving contact and the contact support respectively. A geometric axis of the contact spring is a second axis line located on one side of the third axis when the moving contact is normally on or off. The contact spring keeps the moving contact in an on or off state. The moving contact rotates relative to the contact support when repelled, drives the contact spring to rotate around the fourth end of the spring, so that the second axis line swings to the other side of the third axis, and remains in a temporary breaking position.

The invention relates to an electrical contactor (10) comprising: a fixed contact part (12) and a movable contact part (14), the movable contact part being movable relative to the fixed contact part (12) between a contact position in contact with the fixed contact part and a separated position separated from the fixed contact part (12); the actuator (16) is used for driving the movable contact part (14) to move relative to the fixed contact part (12) towards a contact position in contact with the fixed contact part (12) or a separation position separated from the fixed contact part (12); a linkage portion (30) for driving the movable contact portion (14) independently of the actuator (16) from a contact position to a separation position, characterized in that the linkage portion (30) comprises a drive spring (32) and a system for releasably locking the linkage portion.

The invention relates to a switch (1) for switching a high-voltage connection, comprising at least one fixed contact (2) and at least one movable contact (3) in a housing having a housing base (10) and a housing cover (11), wherein the movable contact (3) is secured to a support unit and is guided in a part of the housing, and the fixed contact (2), the housing base (10), the housing cover (11), and the support unit form a switching chamber (12) which is under atmospheric pressure in the open state of the switch (1) and is sealed against atmospheric pressure in the closed state of the switch (1).

Some embodiments relate to a switching device comprises a first and a second fixed contact, a contact bridge, a first and a second movable contact arranged at the contact bridge, a contact spring, a contact bridge carrier, a housing and at least one stopper. The contact bridge carrier is movable and is coupled to the contact bridge via the contact spring. The at least one stopper is connected to the housing, and is configured to limit a movement of the contact bridge in case of a short circuit. The switching device also comprises a magnetic drive assembly with an electric coil, a magnetic core and an armature, wherein the armature is movable and is connected to the contact bridge carrier.

Apparatuses, systems, and methods are described for providing event indication. The system includes a protection device, an event indicator associated with the protection device, including a housing having an opening; a translation member configured to extend at least partially through the opening, and a detection section configured to generate a position signal based at least in part upon a position of the translation member, and a connector section configured to transmit the position signal. The system further includes an external device communicatively coupleable to the connector section to obtain the position signal.

Method and system for determining a tripping range of an electrical circuit switching device The invention relates to a method and system for determining a tripping range of an electrical circuit switching device (4) adapted to supply an electrical installation (12).The system (2) includes an electronic computing module configured (6) to receive data from at least one vibration sensor (16) integrated into said switching device (4) and configured to select, from spectrograms calculated from acquired time-domain vibration signals, a predetermined subset of operational characteristics; apply a parameterized prediction model using supervised machine learning to the values ​​of the operational characteristics to obtain an estimated breaking current value; and determine, based on the estimated breaking current value, a tripping range for the switching device from among: normal tripping, overload tripping, and short-circuit tripping. Figure 1 for the abbreviation.

An electromechanical switching device (10) for interrupting an electric current, the switching device (10) comprising a fixed main contact (12); a movable main contact (14); a fixed arcing contact (16); a movable arcing contact (18), the fixed arcing contact (16) and the movable arcing contact (18) being arranged in parallel with the fixed main contact (12) and the movable main contact (14); an actuation arrangement (22) configured to move the movable main contact (14) and the movable arcing contact (18); and a magnetic member (30) arranged to generate a magnetic holding force acting on the movable arcing contact (18) in a direction opposite to the fixed arcing contact (16) in response to a current flowing through the movable arcing contact (18) when the movable arcing contact (18) is in a closed position.

A debris barrier is for an electrical switching apparatus. The electrical switching apparatus includes separable contacts and an arc chute. The separable contacts generate debris when tripping open in response to an electrical fault. The arc chute has a plurality of splitter plates each having an edge portion and a distal portion located opposite and distal the edge portion. The debris barrier includes a first leg, a second leg, and a middle portion connecting the first leg and the second leg. The middle portion is coupled to one of the separable contacts. At least one of the first leg and the second leg has a first barrier portion and a second barrier portion extending therefrom. The first barrier portion is located proximate the distal portion. The second barrier portion extends from the first barrier portion toward the edge portion in order to redirect the debris toward the edge portion.

A contactor and a control method thereof are disclosed, the contactor including: an electromagnetic component; a static contact; a movable component including a connected movable contact, a first elastic part configured to generate an elastic force supporting the movable component and a driving part configured to produce an electromagnetic driving force through a magnetic field generated by the electromagnetic component; a sensor; and a controller configured to: in response to the sensor detecting that the driving part is displaced based on the electric repulsion force generated by the current flowing through the movable contact and the static contact, control the electromagnetic component to adjust the generated magnetic field to reduce the electromagnetic driving force produced by the driving part based on the generated magnetic field in the opposite direction to the electric repulsion force, so that the movable contact is not closed with the static contact again.

A contactor and a control method thereof are disclosed, the contactor comprising: an electromagnetic component; a static contact; a movable component comprising a connected movable contact, a first elastic part configured to generate an elastic force supporting the movable component and a driving part configured to produce an electromagnetic driving force through a magnetic field generated by the electromagnetic component; a sensor; and a controller configured to: control the movable contact of the movable component and the static contact to be closed, in response to the sensor detecting that the driving part is displaced based on the electric repulsion force generated by the current flowing through the movable contact and the static contact, control the electromagnetic component to adjust the generated magnetic field to reduce the electromagnetic driving force produced by the driving part based on the generated magnetic field in the opposite direction to the electric repulsion force, so that the movable contact is not closed with the static contact again. The contactor according to the present disclosure can prevent the movable contact and the static contact from being welded during a short circuit, and thus avoiding contactor failure and improving the reliability of the device.

A pyrotechnic switching device comprises a housing containing fixed contacts (104,106, figure 1), a movable contact 108, and at least one pyrotechnic actuator 202 which when activated moves the movabl

The embodiment of the utility model provides a contact assembly of a breaking device and a dual-power change-over switch. The contact assembly comprises an arc extinguishing assembly which comprises an arc extinguishing grid sheet group located in an arc extinguishing chamber, and a first arc striking sheet and a second arc striking sheet which are located at the two ends of the arc extinguishing chamber; the static contact is connected with the wire inlet terminal through a first litzendraht wire, the static contact comprises a U-shaped structure, the U-shaped structure comprises a first section and a second section which are opposite to each other, the first section is pivoted with the first pivot so that the static contact can rotate between a first closing position and a first opening position, and a static contact is arranged on the second section; when the static contact is located at a first opening position, the free end of the second section is close to the first arc striking sheet; and the contact pressure piece elastically abuts against the static contact so as to apply a force for moving towards the first opening position to the static contact.

A slot motor for use with secondary contacts in a circuit breaker includes a top slot motor component structured to be attached to a moving arm of the secondary contacts; and a U-shaped bottom slot motor component including a base and a pair of legs extending upward from the base, the U-shaped bottom slot motor component structured to be separated from the top slot motor component by vertical gaps between the top slot motor component and ends of the pair of legs, wherein the slot motor is structured to generate a magnetic field producing a force to maintain the secondary contacts in closed position upon passing high current through the moving arm.

Measurement module (1) for detecting at least one electrical magnitude, which comprises at least one electrical conductor (2), at least one electrical sensor (3), which is operatively associated with the electrical conductor (2) for detecting at least one electrical magnitude associated with the latter and generating a corresponding electrical measurement signal, and a signal connector (96) for the communication of the measurement module (1) with external components. The measurement module (1) also comprises a galvanic interruption device (5) adapted to interrupt the passage of current through the electrical conductor (2). Also provided for is an internal display (90) for showing different information to a user, in particular relative to the energy associated with the current that crosses the electrical conductor (2). In addition, the electrical conductor (2) defines a concave zone (23) in which a board (40) is housed which carries the electrical sensor (3) mounted thereon.

The invention relates to a double-disconnect double-pole bidirectional contactor configured to be mounted on two parallel busbars, comprising, for each pole, an interrupter chamber, in which the following are disposed:a moving bridge having first and second moving contacts;a first fixed contact and a second fixed contact;a pair of magnets, able to generate a magnetic field with a constant direction, so as to generate a magnetic force for moving an arc appearing between the fixed contacts and the moving contacts of the moving bridge passing from a closed state to an open state;four blocks of fins;four arc guides.The two interrupter chambers are configured to simultaneously extinguish arcs having a first current direction for one pole, and arcs having a second current direction for the other pole, the first and second current directions being opposed. The first and second interrupter chambers are disposed parallel and are up against each other, defining a joining zone that is parallel to a direction of movement between the closed state and the open state of each of the two moving bridges, the first and second interrupter chambers being in fluid communication at least partly in the joining zone. There are four magnets and the pairs of magnets of the two poles are disposed so that the magnetic fields generated in the two poles are in a parallel direction but in opposite directions.

Apparatuses, systems, and methods are described for providing event indication. The system includes a protection device, an event indicator associated with the protection device, including a housing having an opening; a translation member configured to extend at least partially through the opening, and a detection section configured to generate a position signal based at least in part upon a position of the translation member, and a connector section configured to transmit the position signal. The system further includes an external device communicatively coupleable to the connector section to obtain the position signal.

Method for estimating the tripping current of a circuit breaker, associated system, assembly, and computer program. The present invention relates to a method for estimating the tripping current of a circuit breaker, the circuit breaker being configured to switch from an armed configuration to a tripped configuration, a tripping current, of an intensity equal to the tripping current, flowing in the circuit breaker when it switches to the tripped configuration, the switching of the circuit breaker to the tripped configuration generating a sound, representative of the tripping current, the method comprising at least the following steps: acquisition (102) of an output signal (So) emitted by a microphone, the output signal being representative of the sound generated by the circuit breaker when it switches to the tripped configuration; calculation (108) of a plurality of metrics from the output signal (So);and determination (110) of a trigger intensity class via an artificial intelligence model, the trigger intensity class being chosen from a plurality of predetermined trigger intensity classes. Figure for the abstract: Figure 3;

The embodiment of the utility model provides a contact assembly of a breaking device and a dual-power change-over switch. The contact assembly comprises an arc extinguishing assembly which comprises an arc extinguishing grid sheet group, a first arc striking sheet and a second arc striking sheet which are located in an arc extinguishing chamber; the static contact is connected with the wire inlet terminal through a first litzendraht wire and sleeved on the first pivot, the static contact can rotate between a first closing position and a first opening position, the static contact comprises a first section opposite to the first arc striking sheet, and a second section opposite to the second arc striking sheet, and the first end of the first section is pivoted with the first pivot; the first end of the second section is connected with the second end of the first section, and the second end extends towards the direction of the first arc striking sheet; the first end of the third section is connected with the second end of the second section, the second end of the third section extends in the direction away from the first arc striking piece, a static contact is arranged on the third section, and when the static contact is located at the first opening position, the first end of the third section is close to the first arc striking piece; and the contact pressure part is used for applying a force for moving towards the first opening position to the static contact.

Method for estimating the tripping current of a circuit breaker, associated system, assembly, and computer program. The present invention relates to a method for estimating the tripping current of a circuit breaker, the circuit breaker being configured to switch from an armed configuration to a tripped configuration, a tripping current, of an intensity equal to the tripping current, flowing in the circuit breaker when it switches to the tripped configuration, the switching of the circuit breaker to the tripped configuration generating a sound, representative of the tripping current, the method comprising at least the following steps: acquisition (102) of an output signal (So) emitted by a microphone, the output signal being representative of the sound generated by the circuit breaker when it switches to the tripped configuration; calculation (108) of a plurality of metrics from the output signal (So);and determination (110) of a trigger intensity class via an artificial intelligence model, the trigger intensity class being chosen from a plurality of predetermined trigger intensity classes. Figure for the abstract: Figure 3;

An industrial switching device prevents a false indication of an open electrical circuit when contacts within the switching device are welded shut. Under normal operation, an actuator is selectively moved between a first position and a second position to reciprocally move a plunger to open and close the contacts. The actuator includes an indicator of whether the switching device is in the “ON” or “OFF” state. When the contacts are welded shut, a plunger engagement section interlocks with an actuator engagement section to prevent the actuator from moving from the “ON” position to the “OFF” position. A crossbar on the plunger engagement section embeds in the actuator engagement section to prevent the actuator from sliding over the plunger. A side member on the plunger engagement section prevents the actuator from sliding around the plunger.

The invention relates to an electrical contactor (10) comprising fixed contacts (12) and movable contacts (14) which are movable relative to the fixed contacts (12) between a position of contact with the fixed contacts and a position remote from the fixed contacts (12), an actuator (16) for driving the movable contacts (14) in movement relative to the fixed contacts (12) towards one or other of the position of contact with the fixed contacts (12) and the position remote from the fixed contacts (12), a linkage (30) for driving the movable contacts (14) in movement from the contact position towards the remote position independently of the actuator (16), characterized in that the linkage (30) comprises a drive spring (32) and a system for locking the linkage which is disengageable. Figure for the abstract: figure 3.

To provide an abnormality detection breaker capable of checking the detection status of abnormal conditions at any time, and a distribution board.SOLUTION: An abnormality detection breaker 4 is connected to a power supply path C11 included in an electrical circuit C1 and includes a detection unit 41, a contact 43, an abnormality presentation unit 451, and a recording unit 44. The detection unit 41 performs a series of detection processing to detect an abnormal condition. The contact 43 is able to perform conduction and disconnection of the electrical connection between a main circuit C2 and the electrical circuit C1, and when the detection unit 41 detects an abnormal condition, disconnects the electrical connection. The abnormality presentation unit 451 presents the abnormal condition. The recording unit 44 stores the record of the abnormal conditions detected by the detection unit 41.SELECTED DRAWING: Figure 1

A circuit breaker and operating method. The circuit breaker includes a first current path and a second current path, the first current path includes a mechanical switch, such as an ultrafast mechanical switch, the second current path is connected in parallel with the first current path, and the second current path has a current injector, such as a transient commutation current injection circuit, connected in series with a bidirectional power electronic switch. A short circuit fault current from the mechanical switch path is transmitted to the electronic path by current injection, and then the fault current is interrupted. A pulse current is generated by the electronic switch in the second current path, and the mechanical switch is disconnected during the pulse current. When the mechanical switch is opened, the pulse current and the electronic switch reduce or eliminate arcing.

Circuit breakers comprising high voltage micro-electromechanical systems (MEMS) switches are described. A MEMS teeter-totter switch connected between two terminals of the circuit breaker can include a beam coupled to an anchor on a substrate and two control electrodes disposed on a surface of the substrate. The circuit breaker includes one or more sensors that generate sensor signals indicative of operational conditions of the MEMS teeter-totter switch. A microcontroller generates control signals to change the state of the switch based at least in part on one of the sensor signals.

The invention relates to an electrical contactor (10) comprising stationary contacts (12) and movable contacts (14) which are movable relative to the stationary contacts (12) between a position of contact with the stationary contacts and a position of separation from the stationary contacts (12); an actuator (16) for driving the movable contacts (14) to move relative to the stationary contacts (12) towards either the position of contact with the stationary contacts (12) or the position of separation from the stationary contacts (12); a linkage (30) for driving the movable contacts (14) from the contact position to the separation position, independently of the actuator (16); the electrical contact being characterised in that the linkage (30) comprises a drive spring (32) and a system for disengageably locking the linkage.