313results about "Switching device condition indication" patented technology

The invention discloses a multipath load control acquisition device and system and a load control acquisition method, the device adopts an architecture in which a master device and a slave device cooperate, the master device comprises a master controller, a master communication module, a user display interface and a master interface unit, and the slave device comprises a slave interface unit, a slave controller, an acquisition unit and a slave communication module. Flexible marshalling management is achieved by distributing electronic identity numbers to the breakers, load parameters and the states of the breakers are synchronously collected through the collection unit, a two-way data transmission channel is constructed by means of the master-slave communication module, a control signal is generated based on preset logic and real-time data through the master controller, and the state of the breakers is controlled. And the slave controller issues an instruction to drive the circuit breaker electric operation mechanism to realize millisecond-level rapid switching-on and switching-off operation. According to the invention, the problems of insufficient number of loops, lack of state monitoring, slow response and the like of an existing load control system are solved, and accurate, rapid and intelligent management of multi-path loads on a client side is realized.

The invention provides an inflatable cabinet rigid interlocking structure with grounding feed quantity indication, which belongs to the technical field of gas insulated metal-enclosed switchgear and comprises a cabinet body, a front door opening limiter, a front and rear door interlocking part, a three-position switch and a circuit breaker interlocking mechanism. The front door opening limiter is arranged at the front end of the cable chamber and used for limiting opening and closing of the front cabinet door. The front and rear door interlocking member is used for interlocking control of the front cabinet door and the rear cabinet door. The three-position switch is arranged on the cabinet body, and a disconnecting link of the three-position switch is linked with the front and rear door interlocking piece through a grounding interlocking piece; and the circuit breaker interlocking mechanism is arranged on the cabinet body and is respectively linked with the front door opening limiter and the three-position switch. During operation, the three-position switch and the authority of the front door opening limiter can be unlocked through opening of the circuit breaker interlocking mechanism; after the three-position switch is grounded, the front and rear door interlocking piece is unlocked through the grounding interlocking piece; the front door opening limiter is operated to open the front cabinet door, and the front and rear door interlocking piece can be triggered to open the rear cabinet door. According to the invention, the operation safety and reliability of the gas-insulated switchgear are comprehensively improved.

The invention provides a circuit breaker leakage protection indicating device, which comprises a shell, a first locking structure and a second locking structure, and is characterized in that the first locking structure comprises a first lock catch and a jump pin which are rotationally arranged and keep locking fit through an elastic structure; the second locking structure comprises a second lock catch, an indicating piece and an elastic reset piece. The indicating piece is driven by the operating mechanism to be away from the window and is locked with the second lock catch. When the electric leakage tripping structure is triggered, the first lock catch and the jump pin are driven to be unlocked, then the second lock catch unlocks the indicating piece through the jump pin, the indicating piece is automatically reset under the action of the elastic reset piece and is displayed on the window, and the jump pin synchronously drives the operating mechanism to be tripped. According to the electric leakage protection indicating device, double insurance is formed through a two-stage locking and tripping linkage mechanism, the two-stage locking is mutually restricted and triggered layer by layer, it is ensured that an indicating action strictly corresponds to an electric leakage fault, and the technical purposes of accurate indication of the electric leakage fault, automatic and error-free action, stable structure and interference resistance are achieved.

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker state indication structure and a circuit breaker, and the structure comprises a jump buckle, a lock buckle and an indication member which are different in color. In the switching-on state, the jump pin and the lock catch are locked and matched, and the jump pin moves to push the indicating piece, so that the lock catch moves to the position below the window to display the switching-on state. In the opening state, the jump pin and the lock catch are locked and matched, the lock catch moves to be separated from the lower part of the window, and the jump pin moves to push the indicating piece, so that the indicating piece slides to the lower part of the window to display the opening state; in the tripping state, the jump pin and the lock catch are unlocked, the lock catch moves to be separated from the position below the window, and the jump pin moves to the position below the window so as to display the tripping state. According to the application, a special state indicating piece is reduced, the transmission relation is simplified, and the display of three states is completed through the jump pin, the lock catch and the indicating piece, so that the transmission stability of each component is improved, the overall thickness of the indicating structure is reduced, and the three states of the circuit breaker are conveniently and accurately distinguished.

Machine learning-based arc fault detection and nuisance trip avoidance includes (i) obtaining data representing properties of an electrical signal sensed by an arc-fault circuit interrupter, (ii) interpreting the properties of the electrical signal as indicating an arc fault, the interpreting being based on application of an initial artificial intelligence (AI) model, (iii) based on the interpreting, opening a switch of the arc-fault circuit interrupter to interrupt the conduction of a supply of power to a load output terminal, (iv) receiving an indication that the properties of the electrical signal do not reflect an arc fault, such indication being that the arc-fault circuit interrupter is to refrain from arc-fault-based opening of the switch, (v) obtaining an updated AI model, where the updated AI model undergoes training using the data representing the properties of the electrical signal as an example of the absence of an arc fault, and (vi) deploying the updated AI model in place of the initial AI model.

The invention relates to an N-pole module assembly of a circuit breaker and the circuit breaker. The N-pole module assembly of the circuit breaker comprises a main body function module and a current detection module, and further comprises a first N-pole conductive plate fixedly integrated on the main body function module and a second N-pole conductive plate fixedly integrated on the current detection module, and the main body function module and the current detection module are respectively two independent modular structures. And the first N-pole current-conducting plate and the second N-pole current-conducting plate are fixedly and electrically connected to form an N-pole electric loop. According to the invention, the complicated bending and wiring process of the soft wire in the N-pole module assembly in the prior art is avoided, the assembly is convenient, and the automatic assembly can be realized. Moreover, through the special arrangement of the relative positions of the N-pole electric loop and the L-pole electric loop, the Lorentz force generated by the magnetic field generated by the current on the N-pole electric loop on the electric arc in the circuit breaker unit can assist the electric arc to be further pushed and lengthened, and the effect of enhancing the magnetic quenching function can be achieved.

Electrical protection device, distribution assembly, and associated electrical switchgear. This electrical protection device (300), configured to electrically connect an electrical load (M) to an electrical power source (S), includes incoming terminals (302), outgoing terminals (304), and switching means (310) actuated by a bistable actuator (324). A microcontroller (320) is provided to generate a fault signal (S320), which triggers the actuator, and an output signal (S321), which is different from the fault signal. The protection device includes a supervisory circuit (500), which is interposed between the microcontroller (320) and the actuator (324) and which includes an oscillator (510) configured to generate a periodic signal (S510).The monitoring circuit is configured to generate a trigger signal (S324) when, alternatively, the output signal (S321) of the microcontroller (320) is absent, or the periodic signal (S510) of the oscillator (510) is absent, or when a fault signal (S320) is emitted. See Figure 6 for abbreviations.

This invention discloses an intelligent circuit breaker, comprising a circuit breaker control module and a tripping mechanism. The circuit breaker control module includes: a sampling isolation circuit for acquiring voltage signals between the live wire (L) and the neutral wire (N), the live wire (L) and the ground wire (PE), and the neutral wire (N) and the ground wire (PE), and also for isolating the line input terminal and acquiring the current signal of the ground wire (PE); an MCU controller, connected to the sampling isolation circuit and the tripping mechanism respectively, for determining whether the voltage signal and / or current signal reaches the protection threshold, and controlling the tripping mechanism to operate when the voltage signal and / or current signal reaches the protection threshold, thereby tripping the circuit breaker; and a back-end isolation circuit, disposed between the MCU controller and the tripping mechanism. This invention can acquire and monitor over / under voltage signals and current signals, and through isolation, ensures that the MCU controller is not affected by electromagnetic radiation from lightning strikes, keeping the intelligent circuit breaker always under control.

This invention proposes a multi-channel DC adjustable intelligent electronic circuit breaker, specifically relating to the field of circuit protection technology. It includes an MCU module; a power supply connected to the MCU module; a current adjustment knob (KNOB) connected to the MCU module; at least one intelligent fuse connected to both the power supply and the MCU module, with each intelligent fuse corresponding to a load connected to its respective channel; one-time fuses corresponding to the intelligent fuses; and a Bluetooth unit built into the MCU module. By configuring the MCU module, designing the current adjustment knob (KNOB) on the MCU module, and designing intelligent fuses on each load-connected path, the short-circuit protection response time of the multi-channel DC adjustable intelligent electronic circuit breaker proposed in this invention is improved by one level, from the microsecond (µs) level to the nanosecond (ns) level.

The invention belongs to the field of new energy, and particularly relates to a full-loop direct-current insulation protection circuit breaker. The device comprises a direct current insulation protection circuit breaker and a central control box connected with the direct current insulation protection circuit breaker. The central control box displays operation, alarm and fault signals of the main loop and each branch; if the detection data reach or exceed a set judgment value, the circuit breaker executes a fault breaking action; the insulation detection module of the direct-current insulation protection circuit breaker is integrated with the circuit breaker, so that disassembly, assembly and maintenance are simple and convenient; the insulation detection module has detection, alarm, communication and fault protection functions; insulation detection alarm and fault protection functions can be adjusted; and the central control box realizes unified control of data of each branch.

The invention relates to the technical field of circuit breakers, and discloses a grounding type circuit breaker, the circuit breaker comprises a moving contact, a static contact, a handle, a cover body and an output end, a grounding part and a first connecting piece are arranged in the circuit breaker, one end of the first connecting piece is connected with the moving contact, and after the moving contact is separated from the static contact in the opening process, the grounding part is connected with the first connecting piece. And the moving contact drives the first connecting piece to extrude the grounding part, so that the grounding part is contacted with the output end to be grounded. According to the grounding type circuit breaker, in the operation process of the circuit breaker, the moving contact is connected with the output end, then when the moving contact is subjected to opening operation, the grounding power rod and the grounding force transmission rod are used for controlling the grounding component to complete grounding, safety when a switch is switched off is guaranteed, it is guaranteed that no current exists in a circuit after the switch is switched off, and when the switch is switched on, the grounding component is not damaged. The grounding reset lever is firstly toggled, so that the grounding reset pinch bar pushes the grounding force transmission rod, and the grounding function of the circuit breaker is relieved.

The present invention relates to an improved switchgear or contactor device (1) with high arc extinction capability, particularly for industrial and railway applications where high currents must be switched on and off, said switchgear or contactor device (1) comprising in a housing (10): - a switch base portion (2) containing an electrical switchgear (35) of a low voltage drive portion (4) acting on moving contacts (21, 22); - a high voltage portion (5) containing said moving contacts (21, 22) driven towards and away from each other with respect to a mutual contact position, said moving contacts (21, 22) being mounted at respective contact ends of an elbow mechanism (30) movable by the low voltage drive portion (4), and - a top arc barrier extinction portion (3) covering said high voltage portion (5), wherein hardware means (40) are provided in the vicinity of said moving contacts (21, 22) to influence an arc (29) occurring when the moving contacts (21, 22) moving towards and away from each other switch on and off the current.

An electricity protection unit, including for each of at least one phase line: a thermo-magnetic circuit breaker, for cutting the phase electric line upon exceeding an electric threshold thereof; and an indication gadget connected to the thermo-magnetic circuit breaker, for receiving an electric leak between a consumer and a metallic package of any electric appliance consuming electricity from the phase electric line, and for indicating the electric leak, thereby indicating which of the at least one phase line includes the electric leak.

The invention relates to a circuit breaker applied to the technical field of circuit breakers, and the circuit breaker comprises a shell, a switch body, a thermal tripping metal sheet, an electronic module, a notch cavity, a reflection cylinder, a root temperature measurement module and a reflection diaphragm. Even if the thermal tripping metal sheet is bent and deformed due to heating, the output end of the root temperature measurement module still keeps stable contact with the thermal tripping metal sheet, and heat is selectively reflected back to the active layer sheet and the passive layer sheet of the thermal tripping metal sheet by adjusting the vector angle of the reflection diaphragm in the reflection cylinder, namely, when the reflected heat is concentrated on the active layer sheet, the heat is effectively reflected. When reflected heat is concentrated on the passive layer sheet, the thermal tripping metal sheet is easy to bend due to heat, otherwise, when reflected heat is concentrated on the passive layer sheet, the thermal tripping metal sheet is not easy to bend due to heat, thermal deformation regulation and control of the thermal tripping metal sheet are achieved, and overload protection threshold adjustment of the circuit breaker is achieved.

Embodiments provide an Energy Reduction Maintenance Setting (ERMS) key that includes a data connector configured to communicatively couple to a data port of a target device. The ERMS key further includes an illumination device and an actuator mechanism having a base positional state and an actuated positional state. The ERMS key includes logic configured to, upon detecting the actuator mechanism has moved from the base positional state to the actuated positional state, generate and transmit a first data message to the target device through the data connector instructing the target device to enter a protected mode. The logic is further configured to, upon receiving a second data message from the target device over the data connector acknowledging that the target device has successfully entered the protected mode, cause the illumination device to illuminate.

A circuit breaker for an electric current, said device comprising a movable member (2) provided with an electrical conductor (4), said device being configured to move said movable member (2) between a first position, referred to as armed, allowing current to flow in the conductor (4), and a second position, referred to as disarmed, interrupting said current flow, said device further comprising an actuator (12), configured to trigger a transition of the movable member (2) from the armed position to the disarmed position in the event of a fault on an electrical circuit in which said device is integrated, said device further comprising a reset member (36) having a manual actuation zone (38), configured to move the movable member (2) from the disarmed position to the armed position, thereby also triggering a reset of the actuator (12), said actuation zone (38) forming a visual indicator of a disarmed state of said device.

The lock catch comprises a lock catch body, the lock catch body comprises a base, a first side plate and a second side plate, the first side plate and the second side plate are arranged on the two sides of the base respectively, a U-shaped working cavity used for containing a jump pin to move is formed among the base, the first side plate and the second side plate, a first reinforcing shaft is arranged on the first side plate, and a second reinforcing shaft is arranged on the second side plate. Openings in the two ends of the first reinforcing shaft are provided with mounting channels for mounting bolts for hinging the jump pin and the lock catch, hinge holes matched with the bolts are formed in the positions, corresponding to the mounting channels, of the second side plate, a first clamping part is arranged on the outer side of the first side plate, and the first clamping part comprises a plurality of mounting clamping grooves formed at equal intervals; a limiting part is further arranged on the outer side of the first side plate and arranged on the side, corresponding to the base, of the first clamping part. By adopting the technical scheme, the connection strength of the jump buckle and the lock catch is enhanced, the torsion spring is assembled and fixed more stably, and when the handle rotates, the stability of the torsion spring in the stress or recovery process is further improved, so that the jump stability of the handle is ensured.

This protection device (300) comprises at least two conduction paths (303) and cut-off means (310) arranged on each of the conduction paths. The device comprises a microcontroller (320), which is configured to measure a differential current in the conduction paths with detection means (312), to evaluate a differential fault and to send a trip signal to the cut-off means when a differential fault of the first type is detected. The protection device (300) also includes a test loop (360), which is different from the detection means. The microcontroller (320) is configured to inject, into the conduction paths by means of the test loop, a first test signal representative of the electrical fault of the first type and, together with detection means, to measure the first test signal thus injected into the conduction paths.

The invention relates to an overload protection device (1) for protecting electrical components (2), comprising at least two electrical components (2), comprising a carrier (3), which has a plurality of connecting elements (31) for connecting the electrical components (2), and comprising at least one actuator (4), at least one separating element (6) is displaceably arranged on the carrier (3), which separating element (6) is applied by the actuator (4) with a force (F) such that the separating element (6) can be moved by the actuator (4) from a first position into a second position, and the separating element (6) interacts with the two electrical elements (2) in such a way that the separating element (6) can be moved by the actuator (4) from the first position to the second position. In the event of a thermal overload, the two electrical components (2) can be transferred by the separating element (6) to the second position thereof.

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.

Protective device, protective assembly, electrical panel, and associated test method. This protective device (300) includes at least two conduction paths (303) and switching means (310) arranged on each of the conduction paths. The device includes a microcontroller (320), which is configured to measure a differential current in the conduction paths with detection means (312), to evaluate a differential fault, and to send a trip signal to the switching means upon detection of a first-type differential fault. The protective device (300) also includes a test loop (360), which is separate from the detection means.The microcontroller (320) is configured to inject, via the test loop, a first test signal representative of a first type electrical fault into the conduction paths and, simultaneously, to measure, using detection means, the first test signal thus injected into the conduction paths. See Figure 5 for abbreviations.

The present invention relates to a monitoring system of a power device, including: a bracket, a bracket terminal formed at a rear side of the bracket; a circuit breaker, mechanically and electrically connected or disconnected with the bracket terminal; at least one or more position detection devices, installed inside the circuit breaker and detecting a position of a circuit breaker body in real time; and a display part, outputting a movement characteristic of the circuit breaker body detected by the position detection devices.

The invention discloses a display screen and a circuit breaker, the display screen device comprises an operation button, and a cavity is formed in the operation button; a display unit is integrated and fixed in the cavity, and the display unit is used for displaying electric parameter information; the display unit is electrically connected with the main control circuit board outside the cavity of the operation button through a wire, and the wire is led out from the display unit, penetrates through the wiring channel on the wall body of the operation button and extends to the outside. The invention also provides a circuit breaker comprising the display screen device, in particular a plug-in intelligent circuit breaker. The circuit breaker operation button is characterized in that the display unit is highly integrated in the circuit breaker operation button, the limited space is fully utilized, the problem that electric parameter information cannot be visually displayed from the front side after a compact circuit breaker (such as a 1U specification) is inserted into equipment is solved, and the circuit breaker operation button has the advantages of being compact in structure, visual in display and easy and convenient to assemble.

This electrical protection device (300), configured to electrically connect an electrical load (M) to an electrical power source(S), comprises incoming terminals (302), outgoing terminals (304), and cut-off means (310) actuated by a bistable actuator (324). A microcontroller (320) is provided to generate a fault signal (S320), which triggers the actuator, and an output signal (S321), which is different from the fault signal. The protection device comprises a supervision circuit (500), which is interposed between the microcontroller (320) and the actuator (324) and includes an oscillator (510) configured to generate a periodic signal (S510). The supervision circuit is configured to generate a trigger signal (S324) when, alternatively, the output signal (S321) of the microcontroller (320) is absent, or the periodic signal (S510) of the oscillator (510) is absent, or when a fault signal (S320) is emitted.

The invention relates to a modularized intelligent circuit breaker, which relates to the technical field of intelligent power grids and comprises a base, an operation assembly arranged on the base and a front cover fixedly arranged on the front side of the base and used for protecting the operation assembly. A protection assembly is arranged on the base, an installation cavity is formed in the base, the protection assembly comprises a lower shell arranged in the installation cavity and a top cover fixedly arranged on the front side of the lower shell, and an overload protection mutual inductor, a zero sequence mutual inductor and a metering mutual inductor are installed in the lower shell; a plurality of conducting strips penetrating through the overload protection mutual inductor, the zero sequence mutual inductor and the metering mutual inductor are installed on the lower shell, the two ends of each conducting strip are fixedly provided with a plug-in piece and a lug plate, and the side face, away from the protection assembly, of the installation cavity is provided with a receding notch; according to the utility model, the overload protection mutual inductor, the zero sequence mutual inductor and the metering mutual inductor are integrated and preassembled in the protection assembly formed by the lower shell and the top cover, and the conducting strip penetrating through the three mutual inductors and the plug-in piece and the lug plate at the two ends are matched, so that the modular design of the protection assembly is realized.

The utility model belongs to the technical field of circuit protection, and particularly relates to an anti-overload structure of micro-integrated equipment, which comprises an overload protector body, a reset rod and connecting contact pieces, the reset rod is movably inserted into an inner cavity of the overload protector body, the connecting contact pieces are arranged at the bottom of the overload protector body and are symmetrically arranged, and the reset rod is movably inserted into the inner cavity of the overload protector body. The overload protector comprises an overload protector body, an overload detection iron sheet is arranged on the surface of the overload protector body, a resistance heating wire is movably arranged on the surface of the overload protector body, the two ends of the resistance heating wire are connected with mounting seats, mounting grooves are formed in the positions, located at the two ends of the overload detection iron sheet, of the surface of the overload protector body, and the mounting seats are fixed in the mounting grooves through countersunk bolts. According to the overload protector, the resistance heating wire is installed on one side of the overload detection iron sheet, the resistance heating wire generates heat after being electrified, the heat is transmitted to the overload detection iron sheet to enable the overload detection iron sheet to deform, and therefore overload detection can be actively carried out on the overload protector to detect whether the function of the overload protector is normal or not.

A power mechanism, a switch, a power conversion apparatus, and a power supply system are disclosed. The switch includes a contact component, a knob, and a power mechanism connected between the contact component and the knob. The power mechanism includes a fastening bracket, a knob connector, a contact connector, a transmission component, a trip unit, and a cradle. Both the knob connector and the contact connector are rotatively connected to the fastening bracket, and rotation centers of the knob connector and the contact connector are collinear. The transmission component is configured to implement power transmission between the knob connector and the contact connector. The trip unit is configured to receive a switch-off signal, to implement tripping of the trip unit and the cradle. The transmission component is driven to move by using the cradle, to separate the movable contact from the static contact, so that the switch is switched off. The switch provided in this application has advantages of a compact structure and a small size.