Locking device for switching device

FIELD: physics, communication.

SUBSTANCE: locking device is intended for use in the switching device, has the first compartment (3) with the first closing element (5) and the second compartment (4) with the second closing element (6). The locking device comprises a means (13) of barrier locking, adapted to prevent closing the said first compartment (3) by the said first closing element (5) when the said second closing element (6) is not in the closing position in which access to said second compartment (4) is difficult, and the means (14, 18, 22) of block locking, operably coupled to the said means (13) of barrier locking and adapted to block the said second closing element (6) in the said closing position when the said first closing member (5) is in the corresponding closing position, in which the access to the said first compartment (3) is difficult.

EFFECT: invention provides improved safety, ease of maintenance.

16 cl, 12 dwg

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: invention refers to electric engineering and may be used in electric cabinets. The blank for a drawer (10) of an electric cabinet comprises a part (1) of the basic plate, the first bent off part (2) for a connector wall with the respective fold line (3) passing in the first direction, and the second and third bent off parts (4, 6) for side walls with the respective fold lines (5, 7) passing in the second direction perpendicular to the first one. The part (1) of the basic plate comprises side sliding parts (8, 9), which pass outside the respective fold lines (5, 7) of the second and third bent off parts (4, 6).

EFFECT: simplified fabrication and increased cost efficiency.

13 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering. A vertical electrical connector is intended to supply horizontal rows of electrical devices in a switchboard and contains a row (100) of vertical conductive bars (110, 120, 130, 140) parallel to the longitudinal axis (X) and having the central plane (P). Each conductive bar is made as a thin and prolonged metal plate (115, 125, 135, 145) containing two opposite main sides placed in parallel to each other and perpendicular to the central plane (P) of this row (100). Two lateral conductive bars (110, 140) are placed at the ends of this row and each one contains at least one electrical connector (111, 121A, 121B, 131A, 131B, 141A, 141B) for the electrical connection of the above electrical devices to the electrical network. All electrical connectors of the conductive bars in the row are placed in the space lying between the above lateral conductive bars. The device contains at least one connecting block (150A, 150B, 160), which contains electrical connectors (121A, 131A, 141A, 131B, 131B, 141B, 111) placed in line close to each other in the transversal direction (Y) perpendicular to the longitudinal axis (X) in the central plane (P) of the row (100).

EFFECT: simplified connection.

14 cl, 15 dwg

Computer unit // 2554089

FIELD: physics, computer engineering.

SUBSTANCE: invention can be used in a railway automation system equipment having high requirements for moisture and dust protection. The computer unit includes functional cells in the form of printed-circuit boards with electronic components mounted on guides and connected by electrical connectors at their ends with a motherboard and protected by a casing. The casing consists of side walls, front and rear frames which form a chassis, to which a cover, a base and front and rear panels are mounted. On the inner side of the side walls there are stiffening ribs, along the upper edges of which there are grooves; at the ends there are openings for mounting the front and rear frames, and their sides adjoin protrusions to which rails are mounted, and guides are mounted perpendicularly. Around the inner periphery of the front and rear frames there are mating surfaces, on the outer side of which there are grooves under elastic spacers, on the corners of the opening for mounting side walls to the stiffening ribs, and on the inner side along the upper and lower edges there are horizontal protrusions which form grooves which, when assembling the chassis, form a closed loop of grooves on its upper and lower surfaces under elastic spacers. The functional cells are inserted into the chassis and are attached by one end to the mating surface of the front frame, and by the other end to the motherboard, which is mounted across the chassis and is mounted to the rear rails. Functional cells with high heat dissipation are fitted with heatsinks. The front panel has radiators and functional cells with heatsinks are mounted under the radiators. On the inner side of the front panel around openings for connectors there are grooves for elastic spacers.

EFFECT: high reliability of protecting the unit from electromagnetic radiation, external vibrations, moisture and dust penetration and providing effective heat removal from electronic components with high heat dissipation.

3 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: invention relates to dielectric insulating medium containing hydrofluor monoether, which has, at least, three carbon atoms and has a boiling point below 55C. The invention also relates to the use of the named hydrofluor monoether in a dielectric insulating medium for an electric device (2) for generation, distribution and/or use of electric energy; and also to the use of the dielectric insulating medium for dielectric isolation in the electric device (2) for generation, distribution and/or use of electric energy. The invention also describes the device (2) for generation, distribution and/or use of electric energy, and the named device (2) comprises the housing (4) forming the isolating space (6), and an electrically active part (8) located in the isolating space (6), and the named isolating space (6) comprises the insulating medium, and it is a dielectric insulating medium. The insulating medium according to this invention has high insulating properties, in particular high dielectric durability and at the same time - low PGP.

EFFECT: invention allows to create the insulating medium which is chemically and thermally steady to the temperatures above 140C which is non-toxic or has low level of toxicity and which is also non-corrosive and non-explosive.

72 cl, 3 dwg

Switchgear cabinet // 2548370

FIELD: electricity.

SUBSTANCE: invention relates to electrical equipment and can be used in cabinets for low-voltage switchgears for voltages up to 500 V and electric current up to 63 A. The switchgear cabinet is designed as a wall housing for suspension or embedding or as a vertical cabinet designed with a back wall and related parts (12, 14) of sidewalls, and also, if necessary, at least, one moving front door. The cabinet is fitted with embedded in elements for connection of the switching devices placed in the switchgear cabinet. Sidewall parts (12, 14) of, and also of the back wall are designed modular and rigidly connected to each other. As glue connection of sidewall parts (12, 14), and also of the back wall and/or connection of hinges or grooves of at least one moving front door with the respective sidewall parts (12, 14) the high-resistant adhesive tape is used; as a bearing material (26) the foam material with closed cells coated on both sides with the acrylic gluing material is used.

EFFECT: simplification of fabrication and operation.

11 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: framework is basis of structure of the automatic monitoring and diagnostic systems (AMDS), is contains four vertical supports rigidly secured on base and in top cover of the framework. Guides are secured to side framework poles, in them the sliding trays are installed with possibility of rigid securing. On trays AMDS functional units are installed with rigid securing to trays. The guides and trays are arranged through height with different distances depending on height of the installed units. Flat side panels are secured outside to the side poles. By the side poles on one side of the framework AMDS cabinet is secured to the wall of the process space. AMDS rack is secured to floor and wall of the process space using the shock-absorbers. AMDS functional units have build-in cooling devices. On the additional slide trays of AMDS main option the following is installed: monitored object connected to hardware channels of the test actions, and to hardware measuring parameters of the response signals of the monitored object, and keyboard of AMDS control PC. Option of AMDS design provides for installation of the face and rare doors, that in work position are opened and turned along wall of the process space.

EFFECT: reduced loading of air conditioning devices of the process space of the repair-testing workshops, reduced impact and vibration loads on cabinet REE, especially during AMDS transportation as part of mobile repair-testing facilities.

10 cl, 10 dwg

FIELD: electricity.

SUBSTANCE: portable surface ground device is coupled to a power supply source of a mobile electrical installation and is comprised of a ground tank with a contact bolt and a load placed in its centre. The ground device has heating ground electrodes of a coaxial structure, which outer shells are insulated by a layer of heat- and moisture-proof varnish; the electrodes are placed in a case sealed with a heat insulated polyurethane coating and protected with a glass-reinforced plastic jacket. The case is equipped with a heat concentrator and a resistance sensor connected to an electronic stabiliser of current-spreading resistance.

EFFECT: reduction and stabilisation of current-spreading resistance and provision of the reliable and safe operation of equipment and maintenance personnel in the winter period in conditions of extremely low temperature and perpetually frozen soils.

1 dwg

FIELD: heating.

SUBSTANCE: invention relates to systems for heat removal from computer equipment mounted inside server or mounting cabinets, and namely to a condensation cabinet. The condensation cabinet consisting of a protective casing; two and more injectors serving for spraying of a mixture into an inner cavity of the cabinet; highly heat-conducting plates with installed heat releasing equipment; thermoelectric batteries (TEB); heat bridges; a pin fin heat sink; a fan unit; a control unit (CU); a condensate flowing-down chute; a pump serving for the supply of condensate to injectors, and a temperature sensor involves an evaporation and condensation cooling principle. Liquid is injected through the injectors located on the cabinet ceiling into the inner cavity of the cabinet; after it is deposited on heat releasing elements, it is evaporated, and therefore, the heat releasing elements are cooled down. Liquid vapours are condensed on the ceiling (upper part of the cabinet) that is technically made with an inclination to a rear wall of the cabinet for directed condensate flowing-down. In order to strengthen condensation properties of the evaporated liquid, TEB having a close contact of cold junctions to the upper cover plate of the cabinet are used, and the mounted pin fin heat sink that is also in close contact to TEB junctions, but already on the hot side, performs the heat pick-up. The heat bridges are located between TEB (they alternate in a staggered order with TEB) and serve for cooling of the upper surface of the cover plate by means of the pin fin heat sink and the fan units without any activation of TEB to save electric energy. The fan unit consisting of four fans is controlled by the control unit (CU) that gives a possibility of their pair activation for the purpose of electric energy saving by blowing over a radiator. TEB is fed through CU. A condensed mixture on the upper cover plate flows down through the rear wall and penetrates onto a special chute located throughout the length of the rear wall. From there, it is supplied via the liquid channel to CU, in which a pump is installed. The mixture is supplied back to the injectors through the liquid channels under the action of the pump.

EFFECT: providing efficient heat removal from the cabinet volume.

1 dwg

FIELD: electricity.

SUBSTANCE: invention is related to electric engineering, to electric switchboard and/or distribution cabinets (10) with envisaged panels for metering and distribution. The cabinet comprises mounting frames (18) for fixation of electrical and/or electronic components such as electricity meters and automatic circuit-breakers. The mounting frames (18) are made as C-shaped sections or U-shaped sections. The cabinet comprises a rail (12) connected to at least one receiver (14, 16) for receipt of the mounting frames (18) different in configuration, shape and dimensions. The rail (12) is fixed rigidly at predefined positions to the respective wall (20) of the cabinet (10). The respective receiver (14, 16) is designed to fix the rail (12) locally.

EFFECT: reduction of costs at equipment mounting due to reinstallation of the receiving element in the cabinet.

13 cl, 9 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering, bus bars adapters with bearing bus for fastening the switching device on them. The bearing bus is designed with a possibility of fastening on the bus bar adapter in various positions and has legs. The bus bar adapter has clearance holes, through which respectively one of legs of the bearing bus with latch protrudes from the first limiting surface of clearance holes, to which the bearing bus adjoins, to the second limiting surface of clearance holes so far, that the respective latch of the leg with retaining surface is located at a distance from the second limiting surface, which corresponds to the size of the gate, which slides with geometrical closure between the retaining surface of the latch and the second limiting surface.

EFFECT: simplification of fixing at the expense of avoidance of use of accessories.

9 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: device contains part that controls switching and part that controls interlock. Part that controls switching contains switching lever (1), sector plate (2) to switch over the breaker and isolated change-over switch (3). Part that controls interlock contains lock button (4), lock installation plate (5) and secondary control point (6). Switching lever (1) is rigidly connected with the sector plate (2) and with isolated change-over switch (3). The lock button (4) is rigidly connected with the lock installation plate (5) and secondary control point (6). Installation pin is secured to the outside surface of the cabinet door. The lock button (4) is electrically connected with the electronic block of the programmable controller and power source. Isolated change-over switch (3) is connected with discharge resistor.

EFFECT: stability during use and safety.

4 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: blocked device for a fast connection key in electrical mechanisms consists of an additional device (2), situated at the bottom end of a fast connection key (1) and connected thereto by a region (4) which gives the connection flexibility and allows displacement of the entire device (2) closer to the key (1) by pressing on or separation therefrom and return thereof to the initial position by ceasing the application of pressure which may be applied to the device (2) or to a hook (3), by which the device (2) ends at its bottom end. During rotary displacement of the key (1) and approach to the outer surface (6a) of the housing (6), the end hook (3) of the device (2), which makes up the blocking device, comes into contact with the bottom outer surface (9a) of the bottom protrusion (9), centrally symmetrical to the housing (6), while sliding thereon until said hook is fixed at the top edge (9b) of the protrusion (9), wherein the entire key (1) is fixed in a connection position.

EFFECT: preventing accidental displacement of the fast connection key, which leads to separation of the device from the housing and movement of the electrical mechanism into an off position.

3 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: invention refers to power cutoff switches for machines with mechanical drive. Machine with mechanical drive that has on-off mechanism includes housing with supporting surface, control unit connected to supporting surface. Control unit has positions "off", on without interlock" and "on with interlock". Machine also contains device for control unit contraction into position "off" from position "on without interlock". Control unit has first pressure surface for its manual movement from "off" position into "on without interlock" position against contraction means action and second pressure surface for its manual movement from "on without interlock" position into "on with interlock" position. First pressure surface and second pressure surface are adjacent ones and form an angle exceeding 180.

EFFECT: safety increase provision.

14 cl, 10 dwg

FIELD: electricity.

SUBSTANCE: method to disconnect power supply prior to cover opening consists in the following: (a) a bolt jacket is fixed to the bolt; (b) a motion sensor is connected to a protection and monitoring module by a wire or wireless method; and (c) the motion sensor is connected to send a command to permit power supply for functioning of electric equipment. When the jacket is removed, the motion sensor starts so that it sends a power cut command for electric equipment or starts an emergency alarm.

EFFECT: prevention of gas explosion and its effects when operating with equipment without power cutting.

22 cl, 4 dwg

FIELD: electric engineering.

SUBSTANCE: invention is related to roll-out air circuit breaker, which is able to provide for automatic unloading of closing spring in rolled out condition in roll-out air circuit breaker, and automatic unloading device for closing spring in air circuit breaker. Automatic unloading device for closing spring comprises device for prevention of cam axis rotation installed on cam axis, which provides for loading or unloading of closing spring and arranged with the possibility of cam axis rotation limiting under action of elastic restorative force of closing spring, and device for splitting of device for prevention of cam axis rotation, connected to device for prevention of cam axis rotation and arranged with the possibility of cam axis rotation under action of elastic restorative force of closing spring in compliance with positions, in which main body of air circuit breaker is rolled out of seat.

EFFECT: increased reliability of operator protection against risks that might occur due to accidental discharging of device for power accumulation.

11 cl, 14 dwg

Interlocking device // 2297684

FIELD: electrical engineering; interlocking mechanisms.

SUBSTANCE: proposed interlocking device that can be used for controlling electric circuits of stand-by power change-over systems has casing 1, control component in the form of spring-loaded trapezoidal crank 2, two pairs of hinged levers 3 and connecting rod 4, as well as lever 5 and connecting rod 6. Device also has retainer 7 made in the form of thin rod hinged to trapezoidal crank 2 mounted on reed spring 8 within casing 1. Levers 3 and 5 are mounted on axle 9 for turning relative to one another in vertical plane and provided with pushers 10 and 11 joined with handle grips 12 and 13 of modular circuit breakers being interlocked. Connecting rods 4 and 6 are hinge-mounted on axle 16 for turning relative to one another in vertical plane and hinged to levers 3 and 5, respectively; connecting rods 4 and 5 alternately engage opposite ends of trapezoidal crank 2. Ends of retainer 7 are inserted in holes 17 and 18 of casing 1 for reciprocation under action of trapezoidal crank 2 and for alternate engagement of contact systems 19 and 20 of respective circuit breakers 14 and 15. Retainer 7 is joined to trapezoidal crank by means of hinge 21.

EFFECT: simplified design, reduced size, facilitated maintenance, enlarged functional capabilities.

1 cl, 4 dwg

FIELD: electrical engineering; control devices including those preventing movement of control device components with external drive.

SUBSTANCE: proposed device has case 1 with cover 7 accommodating control rod 16 installed in guides between cover 7 and case 1; ball 14 mounted in hole of case 1; and control drive. Novelty is that device is provided in addition with diaphragm 13 tightly sealed under ball 14 in case hole; retainer 10 fitted between diaphragm 13 and internal boss 8 on cover 7 coaxially with armature 17; E-shaped spring 15 secured on control rod 16 to press control rod to case 1 and ball 14, to diaphragm 13 and to rotary retainer 10. Control drive is made in the form of rotary electromagnet incorporating bistable polarized electromagnetic system; spring stops 20 are installed at ends of armature 17 with carriers 19 of control drive.

EFFECT: simplified design and enhanced reliability of device incorporating electromagnetic drive.

3 cl, 2 dwg

The invention relates to electrical engineering, in particular to high-voltage apparatus, and may find application in the locking device drives the high-voltage circuit breakers

The invention relates to electrical engineering

FIELD: electrical engineering; control devices including those preventing movement of control device components with external drive.

SUBSTANCE: proposed device has case 1 with cover 7 accommodating control rod 16 installed in guides between cover 7 and case 1; ball 14 mounted in hole of case 1; and control drive. Novelty is that device is provided in addition with diaphragm 13 tightly sealed under ball 14 in case hole; retainer 10 fitted between diaphragm 13 and internal boss 8 on cover 7 coaxially with armature 17; E-shaped spring 15 secured on control rod 16 to press control rod to case 1 and ball 14, to diaphragm 13 and to rotary retainer 10. Control drive is made in the form of rotary electromagnet incorporating bistable polarized electromagnetic system; spring stops 20 are installed at ends of armature 17 with carriers 19 of control drive.

EFFECT: simplified design and enhanced reliability of device incorporating electromagnetic drive.

3 cl, 2 dwg

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