36results about "Earthing arrangements" patented technology

This application discloses an electrical cabinet and an energy storage system, relating to the field of power equipment technology. The electrical cabinet includes a cabinet, electrical modules, and a first fire-fighting device. The cabinet has a first chamber and a second chamber, separated by a first partition, which is a fire-resistant partition. The electrical modules are housed in the first chamber, and the first fire-fighting device is housed in the second chamber. The first fire-fighting device has at least one outlet for releasing fire extinguishing material to the outside of the cabinet. According to this application, by using the first partition to separate the first and second chambers, the safety performance of the electrical cabinet is improved, ensuring that a fire in the electrical modules will not affect the first fire-fighting device, allowing the first fire-fighting device to function normally, thus reducing losses caused by fires in the electrical modules.

This invention relates to a dedicated branch box for AC charging piles and its power supply control method. The box includes a housing, a main power supply circuit within the box, a branch distribution circuit electrically connected to the main power supply circuit, and multiple outgoing line units. The main power supply circuit includes a horizontal main busbar arranged horizontally within the box, an incoming line interface at one end of the horizontal main busbar, an expansion interface at the opposite end, and a main disconnect switch between the incoming line interface and the horizontal main busbar. The incoming line interface and the expansion interface are fixedly connected to the horizontal main busbar, and the expansion interface is used to connect to the main power supply circuit of another branch box of the same type via a cable. The branch distribution circuit is located on one side of the horizontal main busbar and electrically connected to it. Multiple outgoing line units are spaced apart along the length of the branch distribution circuit. Each outgoing line unit includes a circuit breaker installed on the branch distribution circuit and an outgoing line interface electrically connected to the circuit breaker. The outgoing line interface is located at the bottom of the box. This invention improves power distribution safety.

The application discloses a false operation preventing mechanical locking device of a substation grounding wire, which comprises a device locking end, a grounding locking end and a connecting pipeline connected between the two ends, the device locking end and the grounding locking end are respectively used for connecting a device and a grounding end, the device is provided with a device connecting rod used for being connected with the device locking end, a device connecting port used for being connected with the grounding wire and a cover plate assembly used for sealing the device connecting port, the grounding end is provided with a grounding connecting rod used for being connected with the grounding locking end and a grounding connecting port used for being connected with the grounding wire, in the process that the grounding wire is connected with the grounding connecting port, the grounding wire is contacted with the grounding locking end and drives the grounding locking end to act, the grounding locking end drives the device locking end and the cover plate assembly to act through the connecting pipeline, the device connecting port is exposed, the sequence of first grounding and then connecting the device is forced, false operation of the grounding wire operator is effectively prevented, and personal and device safety is ensured.

The utility model belongs to power distribution cabinet technical field, concretely is a kind of power distribution cabinet grounding terminal row device, including mounting plate;The surface of mounting plate is equipped with mounting hole, the side fixed mounting of mounting plate has grounding body, the surface of grounding body is movably connected with terminal box, the inner wall of terminal box is provided with sliding mechanism, the inner wall of terminal box is provided with adjusting assembly;The side of the compression plate close to grounding body is provided with wire pressing assembly, the top of compression plate is provided with guide mechanism;The side of mounting plate close to terminal box is provided with protection mechanism;Through the setting of rectangular slide groove, sliding block and compression plate, the setting of rectangular slide groove can make sliding block can stably slide in the inner wall of terminal box, to ensure that compression plate can move smoothly, the cooperation of sliding block and compression plate can be driven to move by screw rod and be clamped tightly electric wire by insulating compression plate, prevent it from appearing to fall off or looseness.

A grounding structure and electrical equipment. The electrical equipment comprises a case (1) having a grounding requirement and a functional device (2) at least partially disposed outside the case (1); the grounding structure comprises at least one grounding connecting portion (3), and the grounding connecting portion (3) is disposed on the housing wall of the part, located outside the case (1), of the functional device (2); and the housing wall of the functional device (2) is conductively connected to the case (1). According to the grounding structure, in the practical application process, the grounding connecting portion (3) is arranged on the housing wall of the functional device (2), and the housing wall of the functional device (2) is conductively connected to the case (1), so that the grounding requirement of the case (1) of the electrical equipment can be satisfied, the internal space of the case (1) does not need to be occupied, i.e., the safety space between the grounding connecting portion (3) and electrical components in the case (1) does not need to be considered, and thus the miniaturization of the case (1) is facilitated.

The utility model relates to the switchgear door interlock application technical field especially relates to a kind of grounding rear door interlock mechanism.A kind of grounding rear door interlock mechanism, characterized by, including: support fixed seat and sliding web, the sliding web one side end is provided with lock plate end hook, the lock plate end hook one side is close to with the connecting lock pin resistance and is engaged, the sliding web is fixed in support fixed seat interior, the sliding web is provided with return spring, control is carried out to sliding web by return spring and external force, and then control lock plate end hook and the connecting lock pin whether to engage and separate.By simplifying the connecting component structure of support fixed seat and sliding web, the whole grounding rear door interlock mechanism assembly is simple, simultaneously, the reciprocating motion of sliding web is more smooth.

This utility model discloses a compact, high-protection outdoor ring network switchgear, specifically relating to the field of switchgear technology. It includes a body with a face shield hinged to the front. Gas springs are connected to both sides of the face shield and the body. Water guide plates are riveted to the body inside the two gas springs. A top cover is provided at the top of the body. A side sealing plate is provided on the right side of the body, and a rear sealing plate is provided at the rear. A bottom frame is provided at the bottom of the body. A communication cabinet is located inside the body on one side of the face shield. The communication cabinet has a partition and a cabinet door. A cable compartment is located at the bottom of the body. A mechanism compartment is located above the cable compartment, and a secondary compartment is located above the mechanism compartment. Multiple lower cabinet doors are installed on the cable compartment, each with a handle. Multiple lifting rings are installed on the top cover. This utility model has the advantages of being compact, highly protective, having reasonable functional zoning, being safe and reliable, and being easy to maintain and transport.

The utility model discloses a modular high low voltage power distribution cabinet, its power distribution cabinet body base surface connects sealed door, and is equipped with initiative heat dissipation groove, incoming line hole and outgoing line hole in left and right sides, and the top has the auxiliary heat dissipation groove, and the inside sets up incoming line module, outgoing line module, measurement module through module installation frame, and each module adopts the installation of connecting structure, is convenient for adjustment and maintenance, and the incoming line and outgoing line module are equipped with lightning -resistant structure, can effectively introduce the lightning current into the earth, guarantees the safety, and initiative heat dissipation structure cooperation heat dissipation groove realizes efficient heat dissipation, and the dust screen on heat dissipation groove can prevent dust and also do not affect ventilation, and measurement module can real -time monitoring electric quantity and remote transmission data. The power distribution cabinet passes through the modular design, good heat dissipation and protection, reliable lightning protection and intelligent measurement, improves installation maintenance efficiency, operating stability and power management intelligent level.

This utility model discloses a lightning protection power cabinet for new energy applications, belonging to the field of power equipment technology. It includes an outer casing and an inner casing, with the inner casing suspended inside the outer casing. An outer door is rotatably connected to the side of the outer casing, and an inner door is located on the side of the outer door. Several nylon support blocks connect the outer and inner casings, and between the outer and inner doors. The outer and inner doors respectively cover the openings of the outer and inner casings. A connecting frame is installed inside the inner casing near its top. In this design, the outer and inner casings are suspended and separated by nylon support blocks, forming a non-conductive air layer between them. This prevents external lightning current from being directly conducted to the electrical components inside the inner casing. A surge protector is installed on the connecting frame at the top of the inner casing, near the input terminal of the electrical components. It can quickly respond to lightning overvoltages, promptly discharge surge energy, and ultimately provide lightning protection for the electrical components.

The utility model relates to the field of circuit breaker provides a kind of anti-misoperation grounding cabinet, including grounding cabinet body and external switch, driving unit and interlock plate are provided in grounding cabinet body;External switch includes main shaft and pull rod, locking plate is provided on pull rod, first locking portion is provided on locking plate;Second locking portion is provided on interlock plate, locking plate is provided on grounding cabinet body with the first locking portion or second locking portion and is locked with locking plate.In the pull rod design locking plate, can be locked with the locking plate in the grounding cabinet body, so that after completing conduction, can be locked with locking plate, keep the state of conduction, misoperation cannot occur.The same reason, interlock plate is provided in grounding cabinet body, connecting closing plate and grounding rod, when completing closing, interlock plate is fixed on locking plate, reach the state of keeping closing, also keep the grounding state of grounding rod, reach the security guarantee of operation.

This utility model relates to the field of grounding box technology, specifically an intelligent grounding device for photovoltaic power stations. It includes a grounding box with an electrically connected cable. A limiting mechanism is installed inside the grounding box, comprising a bracket and a bidirectional screw. A bracket is fixed to the grounding box. A bidirectional screw rotates within one set of brackets, with a rotating block fixed to the end of the bidirectional screw. A long rod is fixed to another set of brackets, with a set of sliding rods slidably connected to the long rod. Another set of sliding rods is threaded onto the bidirectional screw. A slider is fixedly connected between the two sets of sliding rods, and a locking plate is fixedly connected to the top of the slider. Several ball bearings are rotatably installed within the locking plate. The bidirectional screw drives the locking plate for flexible adjustment, adapting to cables of different diameters. The ball bearings reduce friction and prevent damage to the cable insulation. Simultaneously, the multi-component coordinated limiting mechanism provides strong vibration resistance, ensuring stable cable connection.

This utility model discloses a mechanical interlocking device for preventing misoperation of a ring main unit, including a ring main unit body, a circuit breaker switch, a disconnecting switch, a grounding switch, and a cable compartment door lock. The circuit breaker switch, disconnecting switch, grounding switch, and cable compartment door lock are all installed on the front of the ring main unit body. These components control the opening and closing of the circuit breaker, disconnecting switch, grounding switch, and cable compartment door lock within the ring main unit body. This utility model employs a guided approach to assist electrical operators in operating the equipment according to a set sequence. While ensuring the prevention of misoperation, it effectively improves efficiency, reduces the occurrence of incorrect operating sequences, and effectively reduces the risk of damage to the switches. Furthermore, it allows for safe operation without requiring extensive experience from the electrical operators.

The utility model relates to a multifunctional distribution box, including the box, the side of box is hinged with the box door through the hinge, the side wall surface of box door is installed with the lock, is installed with the socket mechanism in the box, the bottom surface of socket mechanism is connected with the inside surface of box, the inner wall surface fixed mounting of box has serial advanced server, the side wall of serial advanced server is installed with first power supply and second power supply in proper order, the other side of serial advanced server is installed with the wire slot, the side fixed mounting of second power supply has small -size circuit breaker, the side installation of small -size circuit breaker has the instrument, the side installation of instrument has the terminal, the inner wall surface fixed mounting of box has the grounding copper bar, the utility model has the advantages of: more safe and reliable operation, convenient to use, increase the durability, prolong the service life of socket, and then prolong the service life of whole distribution box, is suitable for the scene installation of limited space or high safety requirement.

The utility model discloses a kind of ring main unit mechanical interlocking devices, it is related to electric power equipment safety protection technical field, including interlocking base of installation on operating mechanism and interlocking lever support installed on cable chamber roof, grounding interlocking hook is hinged on the interlocking base, slidingly penetrating connection has interlocking bolt on the interlocking lever support, the interlocking bolt is hinged with the grounding interlocking hook;Interval is between the interlocking lever support with the interlocking bolt, support assembly is arranged at interval and is in rolling contact with the interlocking bolt;Interlocking bolt is fixedly connected with the block of dialling, and elastic component is arranged between the block of dialling with the interlocking lever support.The utility model effectively solves the problem of existing interlocking device noise, improves the working environment of staff, improves the security and comfort of operation.

The utility model relates to a kind of indoor screen cabinet support of bolt connection, including stand, stand is arranged at the four corners of support, and it is connected with crossbeam and flange beam by bolt between adjacent stand, crossbeam is arranged inside stand, and the crossbeam of all around forms internal support;Flange beam is located at the periphery of stand, and the flange beam of all around forms the external support of support, for supporting the antistatic floor near support, the crossbeam includes first crossbeam and second crossbeam, first crossbeam is perpendicular to second crossbeam, first flange beam is correspondingly arranged with first crossbeam, and second flange beam is correspondingly arranged with second crossbeam.The utility model is all component and is connected by bolt, there is no welding operation in site;While support is strong in independence, when expanding cabinet position in later period, it can be independently copied in batches;Support periphery is provided with angle steel flange beam, can firmly support the antistatic floor near, more beautiful after completion;The support is on the basis of guaranteeing that structure stress is reasonable, make up the shortcoming of traditional indoor screen cabinet support.

The application relates to the technical field of residual current protection, in particular to a high-power variable-frequency equipment distribution box and a residual current protection device, which comprises a residual current transformer for collecting residual current, the core of the residual current transformer comprises a plurality of sensing units which are arranged in sequence, the sensing unit comprises a first annular sheet body and two second annular sheet bodies which are arranged on the first annular sheet body, the first annular sheet body is a 1J85 material metal sheet, and the second annular sheet bodies are silicon steel metal sheets; and a controller connected with the residual current transformer, which is used for acquiring the residual current, and forms a disconnecting signal to control the corresponding circuit to be disconnected to realize protection when the residual current is greater than 30 mA or the duration is greater than 0.1 S. The harmonic interference signal in the output signal of the residual current transformer has been greatly reduced, and the filtering function of the harmonic interference signal is realized.

The application relates to a small full-sealed solid insulation switch, which comprises a mechanism box and an insulation cylinder, the mechanism box comprises a box body and a box cover, the insulation cylinder comprises a cylinder body made of epoxy resin and a circuit breaker assembly, an isolating switch assembly and a grounding assembly in the cylinder body, the outer surface of the cylinder body is provided with a metal layer made by a thermal zinc spraying process, the cylinder body is sealingly fixed on the box body, the circuit breaker assembly comprises an incoming line conductor and a vacuum arc-extinguishing chamber, the vacuum arc-extinguishing chamber dynamic contact is connected with a circuit breaker mechanism in the mechanism box through an insulation pull rod, the isolating switch assembly comprises an outgoing line conductor, an isolating support seat and an isolating dynamic knife, the isolating dynamic knife is connected with an isolating grounding mechanism in the mechanism box through an isolating pull rod, the grounding assembly comprises a grounding static contact fixed in the inner cavity of the cylinder body and electrically connected with the vacuum arc-extinguishing chamber dynamic contact and the isolating support seat, and the isolating grounding mechanism is provided with a grounding dynamic contact matched with the grounding static contact. The switch has the advantages of compact structure, good safety, high reliability and strong practicability.

This utility model discloses a visual grounding box equipped with explosion-proof glass, relating to the field of grounding box technology. Existing grounding boxes require the removal of the cover to observe internal components during daily use. This utility model includes a box body with a detachable cover on one side, on which explosion-proof glass is fixedly installed. A grounding assembly is located within the box body's interior, comprising an insulating plate with a protector, a current transformer, and a copper busbar. A display screen is fixedly installed on one side of the box body's interior. A detachable sheath circulation current monitoring device is located on the side of the box body near the display screen, with a second current transformer fixedly installed at the lower end of the sheath circulation current monitoring device. An array of wiring holes is provided at the lower end of the box body. This technical solution allows personnel to conveniently observe the working status of internal components and real-time information on the display screen through the explosion-proof glass, without removing the cover, reducing the safety hazards associated with repeated cover removal and installation, and improving the convenience and safety of the grounding box.

This utility model provides a temporary electrical wiring device for building electromechanical systems, relating to the field of junction box technology. The utility model includes a junction box with legs underneath, which support the junction box to ensure a gap between the junction box and the ground. Inside the junction box is an assembly section that connects the power bus from the power grid to the power lines of the electrical equipment. The assembly section includes a perforated plate installed inside the junction box, with circuit protection components detachably mounted on the perforated plate. A cabinet door is rotatably mounted on the junction box, and an identification plate is provided on the surface of the door. In this utility model, the perforated plate surface is evenly distributed with holes. Electrical equipment such as electricity meters, emergency power-off switches, disconnect switches, circuit breakers, and residual current devices (RCDs) are detachably bolted into the holes in the perforated plate. These components can be adjusted in position and installed on the perforated plate surface according to actual needs, requiring no additional drilling and allowing for quick adaptation to different requirements.

The utility model belongs to the technical field of combined electrical apparatus, especially relates to a double busbar interval combined electrical apparatus with bypass. The double busbar interval combined electrical apparatus with bypass, including cable outgoing line interval and overhead outgoing line interval, its characterized in that: the cable outgoing line interval is equipped with first transition main busbar at main busbar side, and first transition main busbar is connected with first overhead sleeve through first branch busbar, and the overhead outgoing line interval is equipped with second transition main busbar at main busbar side, and second transition main busbar is connected with second overhead sleeve through second branch busbar. The utility model has the beneficial effects that: the double busbar bypass interval satisfies the need of main loop function, can be switched to another loop when needing overhauling, does not affect the normal operation of load, and adds a bypass busbar, can not cause power failure to users when overhauling equipment.

This utility model discloses a grounding anti-interference device for high and low voltage switchgear, comprising: a switchgear and a door, the door being hinged to one side of the switchgear; and a mounting assembly, which includes mounting rods, sliding grooves, fixing holes, and a grounding copper busbar. The mounting rods are fixed to both sides of the bottom surface inside the switchgear. The sliding groove is located at the center of the mounting rod. Eleven fixing holes are equidistantly located on one side of the outer surface of the mounting rod. The grounding copper busbar is placed on the upper surface of two mounting rods, with a bolt passing through the middle of the grounding copper busbar and a connecting wire passing through the bolt. Slider blocks are fixed to both sides of the lower surface of the grounding copper busbar, and the sliding of the sliders passes through the sliding groove. A mounting hole is located on one side of the outer surface of the slider, and a spring is fixed inside the mounting hole. This utility model allows the device to be disassembled by simply pressing the locking pin, eliminating the need for tools, significantly reducing assembly and disassembly time. It can be operated by a single person, reducing reliance on specialized tools, and is particularly suitable for confined spaces.

The utility model relates to the field of switch cabinet provides an interlocking mechanism and switch cabinet of preventing misoperation, and the interlocking mechanism of preventing misoperation includes frame body and earthing unit, and earthing unit includes ground rod, lock fixed plate and power part. Power part sets up on the frame body, and the middle part axle of lock fixed plate is hinged and sets up on the frame body, and the drive end of power part sets up on one end of lock fixed plate, and the other end of lock fixed plate is provided with fixed part, and the frame body is provided with the power unit of ground rod and is driven to carry out earthing state switching. When using, through power part to drive lock fixed plate to move, the state constraint of one limit or lock fixed of ground rod is carried out, to make ground rod in the non - operating state, cannot be operated or the switching of earthing state through power unit, effectively avoided the situation of misoperation to take place, thereby ensured the safety of operating personnel.

This utility model discloses a subway power distribution cabinet that is easy to maintain, relating to the technical field of subway power distribution cabinets. It addresses the problem that vibrations generated by the ground during subway operation can be transmitted to the inside of the power distribution cabinet, causing loose wiring. Loose grounding wires or other wiring within the cabinet can increase the grounding resistance of electrical equipment, leading to instability in its operation. The lower end of the power distribution cabinet is fixedly equipped with a shock-absorbing mechanism. An upper support base is provided at the upper end of the shock-absorbing mechanism, and a lower support base is provided at the lower end. Four rubber spring pads are installed at the midpoint between the upper and lower support bases, and at the four corners between the lower and upper support bases. Two shock-absorbing cylinders are symmetrically arranged on the side closest to the adjacent rubber spring pads. A cable management mechanism is fixedly installed inside the power distribution cabinet using Velcro.

This utility model discloses a low-voltage distribution cabinet busbar grounding device, which includes a pull-out base, an operating handle, an indicating mechanism, and voltage testing terminals. The pull-out base is detachably connected to the distribution cabinet, with its second end adjacent to the cabinet. A busbar connector and a switch are disposed within the pull-out base. The busbar connector is located at the second end of the pull-out base, with its first end connected to the busbar of the distribution cabinet and its second end connected to the first end of the switch. The second end of the switch is connected to the ground wire of the distribution cabinet. The operating handle is located at the first end of the pull-out base and is kinetically connected to the switch to drive the switch to connect or disconnect the path between the busbar connector and the ground wire. The indicating mechanism includes a circuit conversion unit and an indicator light. The circuit conversion unit is arranged within the pull-out base, and the indicator light is arranged at the first end of the pull-out base. The low-voltage distribution cabinet busbar grounding device provided by this utility model has the advantages of convenient operation and good safety.

The utility model relates to a kind of grounding interlock and ring main unit of upper isolation lower circuit breaker ring main unit, including electromagnetic lock, mounting bracket and baffle, the electromagnetic lock includes live display and lock tongue, live display detects the live condition of incoming cable of cable chamber;Mounting bracket is connected with electromagnetic lock, and mounting bracket is used to be installed in circuit breaker mechanism;The side of baffle is installed on lock tongue, and the other side of baffle is used to stop the closing button of circuit breaker mechanism. The above technical solution can control baffle to move along horizontal direction by locking or unlocking electromagnetic lock, so that baffle stops the closing button of circuit breaker mechanism, to avoid the closing button of circuit breaker mechanism false touch. Both manual closing and electric closing can be achieved, i. e. when manually unlocking electromagnetic lock, grounding switch grounding and live display confirmation no electricity need to be satisfied, if line is suddenly electrified, live display triggers electromagnetic lock to relock immediately, baffle is automatically reset to block button, to prevent staff operating in electrified state.

This disclosure describes a DC combiner box that has improved field installation capabilities and has decoupled thermal load between input fuses. The DC combiner box can be a junction box that includes a backplate; an input bus mounted to the backplate; an output bus mounted to the backplate; a crimp connector mounted to the backplate and electrically connected to the output bus; and a housing at least partially enclosing the output bus and the crimp connector.

This utility model discloses a leakage-proof fixing device and electrical box, including a mounting bracket with at least one mounting hole; a quick-connect base made of elastic insulating material, which passes through the mounting hole; and a fastener for fixing electrical equipment. When the fastener is assembled with the quick-connect base, the quick-connect base at least partially expands radially and locks into the mounting hole. This utility model achieves insulation isolation between the electrical equipment and the mounting bracket through elastic insulating material, solving the problem of "indoor inverters becoming electrified due to lack of grounding". The radial expansion locking structure ensures dual reliability of mechanical fixing and electrical insulation, eliminating the need for an additional grounding device, simplifying the structure and reducing costs, while providing both stability and safety.

The high-voltage cabinet provided by the utility model, containing cabinet body and internally installed vacuum circuit breaker, disconnecting switch, small mutual inductor and grounding switch, the incoming line joint and outgoing line joint of vacuum circuit breaker pole post are connected with disconnecting switch and small mutual inductor through conducting sheet respectively, the joint head is equipped with plug-in interface, the root has annular recess area and is covered with elastic insulation cover, and the insulation cover and recess area are clamped to form full insulation structure. The design realizes electrical connection through conducting sheet, and the elastic insulation cover tightly covers the joint by virtue of elastic deformation, forms a sealed insulation barrier, greatly increases the creepage distance on the basis of maintaining the compact layout of equipment, effectively resists the creep phenomenon under the humid environment, improves the insulation performance and operation safety of the circuit breaker, and can meet the insulation strength requirements of different voltage grades such as 24kV and 35kV. Meanwhile, after the circuit breaker and the connecting device with reinforced insulation are configured, the structure is more compact, for example, the width of the 24KV cabinet can be reduced to 500mm, the installation space is saved, and more scenes are adapted.

This invention relates to an auxiliary grounding switch for an electrical cabinet, comprising a main shaft, one side of which is mounted on a main shaft mounting plate, and this side of the main shaft is connected to an auxiliary grounding assembly via an intermediate component. The auxiliary grounding assembly includes a base and three auxiliary grounding blades mounted on the base, arranged side-by-side on a grounding blade shaft. Both sides of the grounding blade shaft are movably mounted on the base. The intermediate component includes a vertically arranged main connecting rod, offset between the main shaft mounting plate and the base. One side of the main connecting rod is linked to the main shaft via a driven component, and the other side of the main connecting rod is connected to the grounding blade shaft via a retaining drive component, thereby driving the auxiliary grounding blades to swing. The auxiliary grounding switch of this invention enables synchronous linkage between the auxiliary grounding blades and the main blades, ensuring high safety and reliability in the use of the electrical cabinet.