298results about "Earthing arrangements" patented technology

Disclosed is a switchgear cabinet with a magnetic blow-out load switch, comprising a cabinet body, wherein a cable compartment, a mechanism compartment, a sealed gas compartment, and a fuse compartment are arranged within the cabinet body. A three-phase top insulating sleeve is arranged at the top of the sealed gas compartment, a three-phase bottom insulating sleeve is arranged at the bottom of the fuse compartment, and the three-phase bottom insulating sleeve penetrates into the cable compartment to connect to an incoming cable and an outgoing cable. A three-phase magnetic blow-out load switch is installed within the sealed gas compartment, and an operating mechanism for the load switch is installed at an upper part within the mechanism compartment and located on an outer side of a front panel of the sealed gas compartment. A three-phase fuse is arranged within the fuse compartment, a fuse striker-pin tripping mechanism is installed at a bottom part within the mechanism compartment, and a small fuse grounding switch is further installed within the fuse compartment. The present invention uses a magnetic blow-out arc extinguishing assembly to increase a strong magnetic field to directionally guide and concentrate electrons and ions of an electric arc, and performs rapid arc interruption and arc extinguishing by means of an arc extinguishing apparatus, effectively improving the arc extinguishing capacity of the load switch, and solving the technical problem of load switches in high-voltage load switch cabinets having low arc extinguishing capacity.

The utility model provides an insulation grounding device for power substation construction, which belongs to the technical field of substation grounding construction and comprises an insulation cylinder, a ground cone is fixedly connected to the bottom of the insulation cylinder, a grounding column is embedded in an inner cavity of the ground cone, and connecting columns moving oppositely are symmetrically arranged in the inner cavity of the insulation cylinder. The inner cavity of the insulating cylinder is provided with an opposite linkage assembly for driving the two connecting columns to be in butt joint with the conductive disc and the grounding column respectively, and the two connecting columns are in butt joint with the conductive disc and the grounding column respectively, so that the electric wire is grounded, current is led to the ground through the electric wire, and safe grounding of electrical equipment under normal and fault conditions is ensured; according to the utility model, the device is simple in structure and convenient to carry, prevents electric shock danger during equipment electric leakage, can be directly installed at a corresponding position through the ground cone during construction, forms an integrated structure with the ground cone, brings convenience to the construction process, and further guarantees the efficiency of the construction process of the transformer substation.

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.

The utility model relates to a grounding assembly of a power distribution cabinet, which comprises a spring, a cabinet door connecting plate, a cabinet body connecting plate and a grounding cable, the cabinet door connecting plate is arranged at one end of the spring, one end of the spring is connected to the inner wall of the cabinet door through the cabinet door connecting plate, and the cabinet body connecting plate is arranged at the other end of the spring. The other end of the spring is connected in the cabinet body through the cabinet body connecting plate, the grounding cable is arranged in the spring, one end of the grounding cable is connected with the cabinet door connecting plate, the other end of the grounding cable is connected with the cabinet body connecting plate, and the length of the grounding cable is larger than that of the spring. According to the utility model, the grounding cable is always kept in a connection state in the opening and closing process of the cabinet door, the problem that the grounding cable is damaged due to stretching or compression in a traditional grounding mode is avoided, the grounding reliability is improved, and meanwhile, the grounding cable is directly connected with the cabinet door and the cabinet body, so that the problem of poor contact is avoided.

The utility model relates to the technical field of construction site power distribution, in particular to a movable power distribution box platform deck which comprises a protection cage and a bottom plate, lifting lugs are arranged on the upper side of the protection cage, a wood plate pad is arranged on the upper side of the bottom plate, at least three sets of sliding seats are arranged on the lower side of the bottom plate, and sliding rails are arranged on the lower sides of the sliding seats. A batten is arranged on the lower side of the sliding rail, and stabilizing blocks are arranged at the two ends of the batten; the sliding seat comprises a guide rail seat, rollers and sliding pins, the multiple sets of sliding pins are evenly arranged on the upper side of the guide rail seat, groove walls matched with the sliding pins are arranged on the lower surface of the bottom plate, and the groove walls are perpendicular to the sliding rails; distribution boxes are installed in the protection cage in a centralized mode, the wood base plate is arranged at the bottom, the distribution boxes are convenient to fix, insulation is achieved, safety is guaranteed, in addition, the sliding seats are arranged and matched with the sliding pins to achieve longitudinal and transverse movement and small-range rapid adjustment, use convenience is improved, bottom wood beams can be rapidly laid and adjusted, and operation is convenient.

The utility model relates to the technical field of power distribution cabinet grounding, and discloses a low-voltage power distribution cabinet grounding device, which solves the problems in the background technology, and comprises a power distribution cabinet body, the power distribution cabinet body is provided with support legs, a fixed plate is arranged in the power distribution cabinet body, the fixed plate is provided with guide holes, and the guide holes are communicated with the support legs. A guide hole is formed in the bottom of the power distribution cabinet body, a grounding nail penetrates through the guide hole, a penetrating hole is formed in the bottom of the power distribution cabinet body, the penetrating hole corresponds to the grounding nail in position, a wiring terminal is arranged on the grounding nail, the grounding nail is rotatably connected with the wiring terminal, and the wiring terminal is connected with a wire in the power distribution cabinet body. A rotary motor is arranged on the grounding nail, the output end of the rotary motor penetrates through the wiring terminal to be connected with the grounding nail, and a sliding rail is arranged on the inner wall of the power distribution cabinet body. The power distribution cabinet has the effects that manual operation can be reduced, it is ensured that the insertion process is stable and efficient, loosening or displacement is prevented, and safety is improved.

The invention relates to the field of combined electric appliances, in particular to a double-bus GIS (gas insulated switchgear) extension structure with a reserved interval and a charged withstand voltage test method.The double-bus GIS extension structure with the reserved interval comprises a first bus, a second bus and early-stage equipment arranged on the first bus and the second bus, and the first bus and the second bus are provided with bus interfaces to be extended; the earlier-stage equipment comprises an earlier-stage line I, an earlier-stage line II, a bus coupler, a bus bar I PT, a bus bar II PT, an earlier-stage main transformer I and an earlier-stage main transformer II; the system further comprises extension equipment, and the extension equipment comprises a first extension bus and a second extension bus which are connected with the first bus and the second bus respectively, and an extension line, a reserved interval and an extension main transformer which are arranged on the first extension bus and the second extension bus. Power failure of the whole station is not needed, the consequence that early-stage equipment cannot operate is avoided, the cost is saved, and the flexibility of normal power supply is improved.

The invention provides an anti-electric-shock and dustproof low-voltage branch box, and relates to the technical field of low-voltage power distribution equipment, the anti-electric-shock and dustproof low-voltage branch box comprises a box body, a box door and a box cover, the box body comprises an outer-layer insulation shell, an inner-layer insulation shell and an interlayer, and the interior of the box body is divided into a branch box main body cavity, an electrical isolation cavity, a heat dissipation and dust removal channel and an independent wire duct cavity; a wiring terminal set, an insulation positioning frame, an adjustable supporting column, an electric leakage detection module and a grounding terminal are fixed in the branch box body cavity, a power controller and an airflow dustproof assembly are arranged in the electrical isolation cavity, the upper end and the lower end of the heat dissipation and dust removal channel correspond to the airflow dustproof assembly and the diversion opening and closing mechanism, and the box door is provided with an electromagnetic lock and a wire groove plugging plate. The beneficial effects of the invention are that the double-layer insulation structure is combined with the electric leakage detection module to realize linkage of electric leakage, power failure and door locking, so that the anti-electric shock safety is improved; through the sealing design of the active airflow barrier and the multi-stage filter screen, the synergistic interaction of dust prevention and heat dissipation is realized, the maintenance cost is reduced by a modularized convenient structure, and the reliability and the practicability are greatly improved.

The utility model discloses a lightning protection mechanism of a power distribution cabinet for power transmission, and belongs to the technical field of power transmission equipment. The device mainly comprises a synchronous driving unit, the synchronous driving unit is installed at the top of the power distribution cabinet and drives a retracting and releasing unit to rotate at the top of the power distribution cabinet, the retracting and releasing unit comprises a worm, a worm gear and a rotating rod, the worm is in meshed connection with the side wall of the worm gear, and the rotating rod is in key connection with the interior of the worm gear. One end of each rotating rod is rotationally connected to the inner side wall of the power distribution cabinet through a bearing seat, the other end of each rotating rod is fixedly provided with a lightning protection unit, and the synchronous driving unit is matched with the retracting and releasing unit, so that flexible retracting and releasing of the lightning protection units are achieved. In no thunder and lightning weather, the lightning protection unit can be recycled into the power distribution cabinet, external environment erosion is reduced, and the service life of the lightning rod, the insulating base and other components is prolonged.

The invention discloses a power cabinet grounding device with a locking anti-falling structure, and relates to the technical field of power cabinet grounding. An L-shaped fixing frame is mounted on the side wall of the power cabinet through bolts; a connecting assembly is mounted on a transverse plate of the L-shaped fixing frame; the connecting assembly and the grounding block are installed through the locking anti-falling structure. The locking anti-falling structure is mounted in the connecting assembly; the connecting assembly comprises a fixing sleeve; the top of the fixing sleeve and the L-shaped fixing frame are fixedly installed. A first cavity and a movable cavity are formed in the fixed sleeve; one end of the grounding block is aligned with the conical column to be pushed upwards, the bottoms of the two hook frames installed on the ear plate of the movable block are opened towards the two sides, the grounding block can slide in conveniently, after the grounding block is attached to the bottom of the movable block, the barbs at the bottoms of the hook frames are located in the two clamping grooves inserted into the bottom of the grounding block, and the reset effect is achieved under the action of the rotating shaft and the torsion spring. The inclined surfaces of the hook frames are matched with the inclined edges, so that the two hook frames are prevented from automatically opening towards two sides, and the effect of the grounding block anti-falling structure is realized.

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 utility model relates to a grounding switch mechanism for a centrally installed switchgear. The grounding switch mechanism comprises a first transmission shaft, a connecting seat, a first connecting rod, a first vertical rod, a second connecting rod, a support, a rotating shaft and a grounding switch. The first transmission shaft is horizontally and rotatably arranged at the bottom of the cable chamber, and one end of the first transmission shaft is connected with the driving motor; the connecting seat is fixedly sleeved on the first transmission shaft; one end of the first connecting rod is fixed on the connecting seat; first connecting parts are arranged at the two ends of the first vertical rod, the lower end of the first vertical rod is hinged to the first connecting rod through the first connecting parts, the upper end of the first vertical rod is hinged to the second connecting rod through the first connecting parts, and the first vertical rod is kept vertical all the time; one end of the second connecting rod fixedly sleeves the rotating shaft; the rotating shaft is horizontally and rotatably arranged on the bracket; the grounding knife is fixedly sleeved on the rotating shaft; the circuit breaker is connected with an adapter, and a grounding head of the adapter directly faces the grounding knife. The grounding switch mechanism is arranged in the cable chamber, so that personal safety is protected.

The utility model relates to the technical field of power distribution equipment, and discloses a compact European style box transformer substation, which comprises a supporting seat, the top end of the supporting seat is provided with a European style box transformer substation shell, and the European style box transformer substation shell is internally provided with a layered placement assembly for dividing the internal space of the European style box transformer substation shell. The installation framework is installed in the European box transformer substation shell, the stability of the installation framework is ensured through the reinforcing ribs, and a stable installation foundation is provided for key assemblies such as a high-voltage cabinet, a transformer and a low-voltage cabinet. And the internal space can be flexibly adjusted according to the actual sizes of the high-voltage cabinet and the transformer by utilizing the mounting rails and the sliding partition plates, so that the maximum utilization of the space is realized. The design is convenient to maintain and overhaul. The high-voltage cabinet is arranged at the top end of the partition plate, the transformer is arranged at the lower end of the partition plate, and the low-voltage cabinet is mounted beside the mounting framework, so that space utilization is further optimized, and meanwhile, electrical connection and heat dissipation efficiency among the components are kept.

The utility model relates to the technical field of contact boxes for switch cabinets, in particular to an internal and external double-shielding type short-size contact box, which comprises an insulation structure, a conductor structure, a high-voltage shielding structure and a low-voltage shielding structure, the insulation structure is provided with an inner cavity, and the conductor structure is connected with the insulation structure and positioned in the inner cavity. The high-voltage shielding structure is arranged in the insulation structure and connected with the conductor structure, the low-voltage shielding structure is arranged in the insulation structure, the high-voltage shielding structure is closer to the conductor structure than the low-voltage shielding structure, and the low-voltage shielding structure is used for being connected with external ground. By means of the arrangement, the inner and outer double-shielding type short-size contact box can avoid the possibility of insulation faults caused by long-time operation, and the product quality is improved.

The utility model relates to the field of centrally-mounted withdrawable equipment, in particular to metal-armored centrally-mounted withdrawable equipment with an alarm function, which comprises a circuit breaker main body, a moving assembly, a moving trolley assembly, an outer frame main body and a fixing assembly, the outer side of the circuit breaker main body is provided with a moving assembly. The moving assembly comprises a mounting frame; the lower end part of the mounting frame is fixedly connected with a supporting base; the lower end of the supporting base is fixedly connected with a sliding block. A fixing hole is formed in the sliding block; the front end of the fixing hole is slidably connected with a control block. According to the utility model, the circuit breaker main body is moved through the L-shaped pushing block and the installation frame, and the circuit breaker main body is installed through cooperation of the thermosensitive supporting rod and the installation fixing rod with the fixing holes, so that the problems that the circuit breaker is mostly moved through a handcart and an installation rack in the existing metal-armored centrally-mounted withdrawable equipment with an alarm function so as to facilitate connection and interruption of power transmission; and after emergency power failure, the circuit breaker is always kept on a line, so that certain potential safety hazards are caused to disassembly and maintenance of the circuit breaker.

The utility model relates to the technical field of power distribution cabinets, in particular to a grounding device of a power distribution cabinet. The grounding device of the power distribution cabinet comprises a power distribution cabinet body, a cabinet door and a grounding unit, the cabinet door is rotationally connected with the power distribution cabinet body; the grounding unit is located in the power distribution cabinet body and comprises a fixing plate, a bearing plate, a connecting plate, a grounding connecting wire, a grounding piece and a clamping piece; the fixing plates are connected to two opposite inner wall surfaces of the power distribution cabinet body; the two ends of the bearing plate are located on the fixing plates correspondingly. The connecting plate is located at one end of the bearing plate; the multiple clamping pieces are connected with the bearing plate, and each clamping piece comprises a shell, a threaded rod, a first clamping block, a second clamping block, a rotating shaft and a poke rod. According to the utility model, through cooperation of the first clamping block and the second clamping block, connection of a grounding wire is realized, and connection and disassembly are convenient.

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 provides a novel ring main unit basic assembly, which comprises a bottom plate, first side plates, second side plates, a first top frame, a second top frame, a moisture-proof plate body and a manhole plate, the first side plates are provided with penetrating openings, the second side plates are arranged between the two ends of the two first side plates, the cross sections of all the first side plates and the second side plates form a closed rectangle, and the manhole plate is arranged on the bottom plate. The bottom plate is connected with the bottoms of all the first side plates and the second side plates, the bottom of the first top frame abuts against the tops of part of the first side plates and the second side plates, the bottom of the second top frame abuts against the tops of the rest part of the first side plates and the second side plates, and the cross sections of the first top frame and the second top frame are rectangular. The damp-proof plate body is connected to the inner side of the top of the first top frame, the manhole plate is connected to the inner side of the top of the second top frame, and the top of the first top frame is higher than that of the second top frame. The novel ring main unit basic assembly provided by the utility model can enable the use effect to be better.

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 technical field of high-voltage electrical equipment, in particular to a ring main unit locking device convenient to install. The ring main unit locking device convenient to install comprises a device main body installed in a mechanism chamber; the first mounting plate is detachably connected with the device main body; and the first electromagnet is arranged on the first mounting plate. The grounding locking device solves the technical problems that an operation panel needs to be perforated before installation due to the fact that an existing grounding locking device is placed on the operation panel, the installation mode is complex, replacement is not easy, and the occupied space is large.

The utility model relates to an alternating current power supply array cabinet, in particular to a modularized alternating current power supply array cabinet of a data center. The utility model aims to provide a modularized alternating current power supply array cabinet which has the characteristics of small size and low operation and maintenance cost. According to the technical scheme, the modularized alternating-current power supply array cabinet comprises a cabinet body; the system is characterized in that the system also comprises a monitoring system and two power distribution systems; the cabinet body is provided with a front panel door and a rear panel door which are located at the front part and the rear part, and corner pieces located at two sides, and the top surface of the cabinet body is hollow; the power distribution system comprises an input circuit breaker, a lightning protection air switch, a surge protector, an output circuit breaker, an input mutual inductor, an output mutual inductor, a working ground copper bar and a protection ground copper bar.

The application relates to a switch device for power distribution, in particular to a power distribution cabinet heat dissipation device technical field, and discloses a power distribution cabinet busbar temperature field balanced regulation and control device, which comprises a cabinet body, a power distribution part is arranged in the cabinet body, the power distribution part comprises a power distribution busbar, a compensation part is arranged on the power distribution busbar, the compensation part comprises a compensation block, the compensation block is in a U-shaped structure, the U-shaped end part of the compensation block is in a two-ear end structure, buffer holes are arranged on the two ear ends of the compensation block, buffer blocks are hingedly connected in the two buffer holes, a rotating rod is fixedly connected between the hinge joints of the two buffer blocks, buffer arms are fixedly connected to the two buffer blocks, the compensation part, a supporting part and a detection part are cooperated to realize full-time monitoring and dynamic buffering of thermal expansion and cold contraction of the busbar, bending and cracking caused by thermal stress are avoided, looseness is accurately verified by a displacement sensor, traditional manual inspection is replaced, and the risk of missing the best maintenance opportunity is eliminated.

The utility model discloses an anti-static electrical control cabinet, which comprises a control cabinet body, grounding frames formed by pins, a vertical copper bar, a U-shaped copper bar and an outer conductive copper rod, and a support cabinet frame formed by a side mounting plate, a vertical support plate and a bent support leg, an anti-static grounding wire can penetrate into the wire binding groove of the U-shaped copper bar of the grounding frame to be bound and connected, and meanwhile, the grounding wire is externally wound on the wire winding groove of the outer guide copper rod to be grounded, so that two opposite grounding anti-static structures are arranged on the two sides of the control cabinet body, the static grounding elimination effect of the control cabinet body is improved, and the service life of the control cabinet body is prolonged. And the support cabinet frames are oppositely arranged on the outer side of the control cabinet body, so that the placement stability of the control cabinet body can be effectively enhanced, the control cabinet body is not easy to topple due to external force under the support of the support cabinet frames, and the normal use of the matched anti-static structure of the control cabinet body is ensured.

The utility model discloses a power distribution cabinet. The power distribution cabinet comprises a cabinet, and a UPS module, an STS module, a PLC module, an adapter plate and a shielding member which are installed in the cabinet. The shielding part forms a shielding area in the cabinet, the adapter plate is arranged in the shielding area, a first connecting seat and a second connecting seat which are connected are arranged on the adapter plate, and the PLC module is connected with the first connecting seat and / or the second connecting seat; the UPS module and the STS module are both installed on the cabinet in a sliding mode, the UPS module is provided with a first connecting terminal, the first connecting terminal is connected with or pulled out of the first connecting base through sliding of the UPS module, the STS module is provided with a second connecting terminal, and the second connecting terminal is connected with or pulled out of the second connecting base through sliding of the STS module. In the power distribution cabinet, both the UPS module and the STS module can realize hot plugging, and the interface does not need to be plugged manually in the plugging process, so that the risk of electric shock is avoided. Electromagnetic shielding can be carried out on the adapter plate through the shielding piece, and electromagnetic interference caused in the hot plug process of the module is avoided.

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.

The invention discloses a high-voltage electric energy metering cabinet with a visual grounding switch state indication function, and relates to the technical field of electric energy metering cabinets. The metering cabinet comprises a metering cabinet body, wherein a grounding switch is fixed in the metering cabinet body; a transmission rod is fixed on one side of a pull rod of the grounding switch; a connecting plate is fixed on one side of the transmission rod; a transmission plate is fixed to one side of the connecting plate, and a plurality of first meshing blocks are fixed to one side of the transmission plate. First bearings are fixed on the inner wall of the metering cabinet body, and rotating rods are fixed on the inner rings of the first bearings. Through the effect of the indicating rod, compared with a traditional digital display or indicating lamp, an operator needs to understand abstract signals, physical swing of the indicating rod directly presents the state, the operator can rapidly recognize the state through naked eyes, safety accidents caused by misjudgment are reduced, electronic component faults are avoided through visual mechanical indication, and the working efficiency is improved. And the state feedback is more reliable for misjudgment caused by display screen blank screen, indicator lamp failure and the like.

The utility model provides an anti-static device for coal mine electrical equipment, and belongs to the technical field of static prevention and control. Comprising a main arm, clamping plates are arranged at the two ends of the main arm, an adjusting assembly for adjusting the distance between the clamping plates is arranged on the main arm, the clamping plates are distributed towards the side of the main arm, a conductive plate is fixed to the face, facing the clamping plates, of the main arm, a conductive piece is vertically arranged on the main arm and makes contact with the conductive plate, and the conductive piece is movably assembled on the main arm. The conducting strip is in sliding contact with the conducting plate, and the main arm is provided with a pressing piece for adjusting the height of the conducting strip. According to the utility model, a conductive path is formed between the electrical equipment and the ground or the wall surface, so that static charges on the surface of the electrical equipment can be quickly guided into the ground, static accumulation is avoided, the safety of the equipment and personnel is protected, the flexibility and the adaptability are higher, a clamping assembly mode is adopted, the assembly and disassembly are easy, and the repeated utilization can be realized.

The utility model relates to a high-voltage switch cabinet with grounding protection, which comprises a switch cabinet body, a switch cabinet door, a grounding control panel and a plurality of groups of grounding polar plates, the switch cabinet door is connected to the front side surface of the switch cabinet body through hinges, the grounding control panel is fixed on the switch cabinet door, and the grounding polar plates are fixed on the switch cabinet door. A plurality of groups of grounding polar plates are arranged on the bottom side of the switch cabinet body, a hidden cabinet door is arranged on the inner bottom side of the switch cabinet body, a structure fixing plate is arranged on the bottom side of the hidden cabinet door, and a grounding control monitoring structure is fixed on the structure fixing plate. According to the utility model, the arrangement of the high-voltage switch cabinet is optimized, the arrangement of the grounding structure of the switch cabinet is improved, the structure capable of monitoring the on-off state of the grounding wire is arranged, the fault positioning function is added, the maintenance of workers is facilitated, the safety is improved, and the device is suitable for popularization and application.

The application relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box with a limiting anti-falling hinge, which comprises a box body and electrical elements installed in the box body, the box body comprises a box door, side plates, a bottom plate and a top plate, one side of the box door is hinged to the side plates, a limiting groove is formed in the inner wall of the box door, a sliding block is slidably arranged in the limiting groove, the sliding block slides towards or away from the bottom plate, a grounding copper sheet is arranged on the side of the sliding block close to the bottom plate, the grounding copper sheet is electrically connected with the grounding wires of the electrical elements and the box body, and a limiting assembly for driving the sliding block to slide towards or away from the bottom plate is arranged on the box door. The limiting assembly is used for controlling the sliding of the sliding block and the grounding copper sheet, so that when the box door is opened, the grounding copper sheet can realize automatic grounding, manual hanging of the grounding wire is not needed, and the safety during use of the electric energy metering box is improved.