618results about "Switching device condition indication" patented technology

The present disclosure relates to a circuit breaker having an energy releasing mechanism of an opening / closing mechanism part, and a circuit breaker according to an embodiment of the present invention comprises: an input latch locking device rotatably formed to restrict or release an input latch according to rotating angles thereof; an interlock movement rail which is installed on a cradle and in which an inspection position, a preparation position, and a driving position are configured; an interlock member for operating at least one among the input latch and a trip latch in a section excluding the inspection position, the preparation position, and the driving position while vertically moving in association with a relative movement of the interlock movement rail; and at least one link member connected between the interlock member and the input latch locking device and switching a linear movement in a vertical direction of the interlock member to a rotation movement, thereby rotating the input latch locking device.

The invention discloses a molded case circuit breaker, which comprises a shell, and an electric operating mechanism is arranged in the shell. The electric operating mechanism comprises a moving contact action assembly with a rotating block and a shifting rod, a sliding block which is arranged on the shell in a sliding manner and can drive the shifting rod to shift, an operating shaft which can drive the sliding block to slide and is provided with an operating hole site, and a motor speed reduction assembly which can drive the operating shaft to rotate, and the operating shaft is in linkage connection with a shifting shaft block; the sliding block is provided with a matching groove corresponding to the shifting shaft block, the operation shaft rotates to drive the shifting shaft block to shift in the matching groove so as to drive the sliding block to slide, the shell is provided with a cover plate capable of shielding the operation hole position in a sliding mode, and the shell is further provided with a rotating lock and a tripping button located on one side of the rotating lock. By arranging the locking microswitch, the manual microswitch, the first microswitch and the second microswitch, signal feedback of a manual operation state, a rotating lock locking state and a current circuit breaker state can be realized.

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 belongs to the field of switch state indicating devices, and particularly provides a circuit breaker opening and closing indicating structure, a circuit breaker and a switch cabinet. According to the indicating structure, the limiting hole is formed in the mechanism box body, the stroke of the opening and closing indicating piece is limited through the limiting hole, and the opening and closing indicating piece is limited at the correct indicating position. Meanwhile, the elastic piece is connected to the driving mechanism for driving the opening and closing indicating piece to swing, the stroke of the output shaft of the circuit breaker is compensated through deformation of the elastic piece, and normal opening and closing of the circuit breaker are guaranteed. The circuit breaker comprises the indication structure. The switch cabinet comprises the circuit breaker.

The utility model discloses a switch-on and switch-off state monitoring module of an external circuit breaker of an electric energy meter, which comprises a shell, a rotating body, a circuit board, a position sensing device and an electric actuating mechanism used for controlling switch-on and switch-off of the circuit breaker are arranged in the shell, and the rotating body is in transmission connection with the electric actuating mechanism. The position sensing device comprises a first position sensing unit arranged on the rotating body and two second position sensing units arranged on the circuit board, and the first position sensing unit can move between the positions matched with the two second position sensing units to sense along with rotation of the rotating body. And when the circuit breaker is in an opening state and a closing state, the first position sensing unit is respectively located at positions correspondingly sensed by the two second position sensing units. The device can be integrated on the external circuit breaker of the electric energy meter, and has the advantages of simple and compact structure and high reliability.

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.

The invention discloses a circuit breaker switch and intelligent detection system with real-time detection, which comprises a circuit breaker body, a contact system, an arc extinguishing system and an operating mechanism are arranged in the circuit breaker body, the contact system comprises a moving contact and a static contact, the bottom of the moving contact is fixedly connected with a bimetallic strip through a soft connecting line, and the bimetallic strip is fixedly connected with the arc extinguishing system through the soft connecting line. The invention relates to the technical field of circuit breakers. According to the circuit breaker switch with the real-time detection function and the intelligent detection system, a bimetallic strip is connected to the bottom of a moving contact, one end of the bimetallic strip is connected with a connecting piece made of a copper-molybdenum composite material, a box body made of red copper is installed at the bottom of the connecting piece, tin-bismuth alloy is injected into the box body, a heat pipe is attached to the bottom of the box body, and heat dissipation fins are installed at one end of the heat pipe. And the copper-molybdenum composite material connecting sheet has extremely low thermal expansion and high thermal conductivity, so that the efficient transfer of heat can be ensured, and the influence of thermal expansion on the structural stability can be reduced.

The utility model discloses an indicating piece mechanism of a molded case circuit breaker, which comprises a shell, an electric operating mechanism arranged in the shell, and microswitches and a circuit board which are arranged in the shell, the electric operating mechanism comprises a rotating block which is rotationally arranged, and the indicating piece mechanism is characterized in that the two microswitches are arranged at an interval, a swing rod is rotationally arranged in the shell, and the circuit board is arranged on the swing rod. The swing rod comprises a rotating part arranged in the middle, an abutting section which is arranged on one side of the rotating part and abuts against the rotating block, and an abutting section which is arranged on the other side of the rotating part and can abut against the two microswitches respectively. The swing rod is rotationally arranged on the shell through the rotating part. According to the utility model, the swing rod linked with the electric operating mechanism is arranged, so that when the electric operating mechanism is in different operating states, the swing rod swings adaptively, and a closing state, a free tripping state and a re-tripping state can be fed back to the circuit board by changing the position states of the swing rod and the two microswitches.

A residual current device is configured for connection to a power supply network having at least two power supply conductors and includes a switching device for interrupting the at least two power supply conductors, a sensor for detecting residual currents in the at least two power supply conductors, and a control circuit which is designed to detect a residual current between the at least two power supply conductors using the sensor and, when a residual current is detected, to control the switching device to carry out a switching operation.

The invention provides a solid-state circuit breaker. The solid-state circuit breaker comprises a shell; the contact assembly is configured to be switched between an opening state and a closing state; a semiconductor element in series with the contact assembly; a handle configured to move between an opening position and a closing position; the first microswitch is fixed to the shell and can be triggered to generate a first signal; the second microswitch is fixed to the shell and can be triggered to generate a second signal; a first trigger portion coupled to the handle to move with movement of the handle; and a second trigger portion coupled to the handle to move with the movement of the handle. Wherein in the process that the handle moves from the closing position to the opening position, before the contact assembly is switched to the opening state, the first trigger part triggers the first microswitch to generate a first signal; and in the process that the handle moves from the opening position to the closing position, the second trigger part triggers the second microswitch to generate a second signal before the contact assembly is switched to the closing state.

The invention provides an operating mechanism for a switchgear and a switchgear assembly. The operating mechanism includes: a housing; an operating handle; a first driving member; a second drive member rotatably mounted to the housing, operatively connected to the first drive member on one hand and operatively connected to the switchgear on the other hand, the first drive member having a body and a protrusion extending from the body toward the second drive member, the second drive member having a groove into which the protrusion of the first drive member extends, and the second drive member having a groove into which the protrusion of the first drive member extends. When the switch equipment is tripped under the action of an internal electromagnet, the second driving piece rotates in the first direction to enable the switch equipment to be switched from a switching-on state to a switching-off state under the condition that the operating handle is blocked and cannot rotate, and at the moment, the protrusion moves in the groove relative to the groove, so that the switch equipment is switched from the switching-on state to the switching-off state. The distance between the protrusion and the second end of the groove is designed to be that the protrusion does not block the second driving piece from rotating in the first direction so that the switch device can be switched to the opening state.

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.

The utility model relates to a leakage tripping indicating mechanism, which comprises a partition plate arranged in a shell; the electric leakage indication button is provided with a first position and a second position, the first position extends out of the shell from the opening, the second position is arranged in the shell, and a positioning notch is formed in one side of the electric leakage indication button; a torsion spring; the tripping push rod is rotatably arranged in the shell, one end of the tripping push rod is in linkage with the tripper, the other end of the tripping push rod extends upwards to form a limiting part, the limiting part of the tripping push rod is clamped into the positioning notch when the electric leakage indication button is located at the second position, and the limiting part of the tripping push rod is clamped into the positioning notch when the electric leakage indication button is located at the first position. And the rotation of the tripping push rod is limited by the electric leakage indication button. The electric leakage indication button is slidably arranged in the installation space formed on the partition plate, and the torsion spring at the bottom is used as driving force, so that the whole electric leakage indication mechanism is simplified, the installation difficulty is reduced, and the assembly efficiency is improved.

This disclosure provides a circuit breaker and a method for operating the circuit breaker. The circuit breaker includes a first circuit breaker terminal (11) and a second circuit breaker terminal (12), a bimetallic strip (13), a first conductive wire (14), a switch (40) having a first contact (41) and a second contact (42), a triggering device (44) mechanically coupling the bimetallic strip (13) to the switch (40), a magnet (17), and a detection device (20) including a magnetic field sensor (21) configured to detect the magnetic field of the magnet (17). The first conductive wire (14) is electrically coupled to the first circuit breaker terminal (11) and the first contact (41) and is wound around the bimetallic strip (13). The magnet (17) is connected to at least one of the bimetallic strip (13), the triggering device (44), and the switch (40).

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 utility model relates to the technical field of power supply equipment, in particular to a circuit protection device for a CPCI power supply. The circuit breaker comprises a circuit breaker body, a first connecting base is arranged on the circuit breaker body, a first conducting strip is arranged on the first connecting base and used for connecting the circuit breaker body with an external circuit, a cover plate is arranged on the circuit breaker body, a first through opening is formed in the cover plate, and the first connecting base and the first conducting strip are both arranged below the cover plate and used for protecting the first conducting strip; the cover plate is provided with a pressurizing assembly, the pressurizing assembly adopts an adjusting screw rod and an adjusting screw cylinder as power elements, a second connecting seat is pushed to move, so that the second connecting seat and a first connecting seat form clamping, and fixation of an external circuit and a circuit breaker is completed. According to the utility model, the dial and the pointer are arranged, so that the moving distance of the connecting seat II can be intuitively known, the connection strength between the circuit breaker and an external circuit can be accurately guaranteed, and the connection stability between the circuit breaker and the external circuit is further guaranteed.

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 utility model discloses a circuit breaker. The service life evaluation unit is used for evaluating the residual electric operation service life of the circuit breaker according to current measurement data records of the current measurement unit; the current measuring unit comprises a first current measuring circuit and a second current measuring circuit which are arranged in parallel; the first current measurement circuit is a current measurement circuit based on an iron core current transformer, a current measurement value ICT of the first current measurement circuit is used as a current basis for circuit breaker protection action judgment, and when the ICT is in a linear measurement range of the iron core current transformer, the ICT is used as current measurement data for recording; the second current measurement circuit is a current measurement circuit based on a PCB Rogowski coil transformer, and the current measurement value IRC of the second current measurement circuit is recorded as current current measurement data when the ICT is out of the linear measurement range of the iron core current transformer. Compared with the prior art, the device can accurately measure the fault current, and further provides an accurate basis for the evaluation of the service life of electric operation.

The utility model provides a surge protector tripping mechanism, which belongs to the technical field of surge protectors, and comprises a shell, a mounting groove is arranged at the top of the shell, two groups of hook pieces are arranged in the mounting groove, a rotatable tripping piece is arranged between the two groups of hook pieces, the tripping piece can be connected with one group of hook pieces, and the other group of hook pieces can be connected with the other group of hook pieces. The corresponding sides of the two groups of tripping pieces are provided with connecting pieces, one end of one group of connecting pieces is connected with a Hall current detection module, one side of the Hall current detection module is connected with a second output pin, and the second output pin is connected with an external detection load or a grounding wire; through the arrangement of the Hall current detection module, when the mechanism detects that a surge phenomenon is tripped, the tripping piece is connected with the Hall current detection module, and the Hall current detection module continuously captures line state information, so that the problem that a traditional tripping mechanism cannot continuously detect a line during tripping is solved.

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.

This invention relates to the field of power system safety assurance technology, specifically providing a circuit breaker with operation monitoring function and its monitoring method. The circuit breaker includes: a circuit breaker spring, a base housing fixed to one end of the circuit breaker spring, a deformation assembly, a transmission assembly, and a detection assembly within the base housing. The deformation assembly visualizes the minute deformation generated by the spring and generates relative displacement. The transmission assembly uses a lever amplification method to transmit the displacement to the detection assembly. The detection assembly includes a piston and a MEMS pressure sensor. One end of the piston is connected to the transmission assembly, and the other end is movably sealed within a closed space, where the MEMS pressure sensor is located. This invention effectively converts the minute deformation of the circuit breaker spring into changes in air pressure, introducing a MEMS pressure sensor to achieve high-precision monitoring. It possesses strong anti-interference capabilities, meets the requirements of low false alarms and zero calibration, reduces operation and maintenance costs, and offers high monitoring accuracy and reliability.