16 results about "Switchgear" patented technology

Thermographic imaging equipment is incorporated directly into cabinets housing electrical switchgear to provide for dedicated, nearly continuous monitoring of the contained equipment. A mechanical scanning technique may allow low-cost sensors to provide essentially continuous thermographic monitoring. Dedicated thermal imaging equipment allows automatic analysis through predefined temperature threshold maps.

A middle/high voltage switch cabinet temperature monitoring system based on electronic nose technology is disclosed. Gas storing and releasing devices are arranged at points where overtemperatures are easy to happen in a middle/high voltage switch cabinet; and a field detection terminal is arranged at the bottom of the middle/high voltage switch cabinet, and connected to a background server through a wireless local area network. The middle/high voltage switch cabinet temperature monitoring system is simple in structure and convenient for mounting because only the gas storing and releasing devices are needed to be arranged at the points where overtemperatures are easy to happen in the switch cabinet; and overtemperature signals are transmitted through CO2 gas so that determination is accurate and quick without causing new fault point to the switch cabinet. The system solves the problem that a contactless system is incapable of accurate positioning. Besides, the system is capable of detecting and pre-warning the overtemperature state of the contact of the switch cabinet accurately and quickly; and the system is low in cost and capable of effectively avoiding the burnout accident of the switch cabinet.

The invention discloses a switchgear with adjustable internal space. The switchgear comprises a bottom plate. The top of the bottom plate is fixedly connected with a box body. A fixed plate is fixedlyconnected between two sides of the inner wall of the box body. A movable plate is slidably connected with the top of the fixed plate between two sides of the inner wall of the box body. Threaded blocks are fixedly connected with two sides of the movable plate. Each inside threaded block is in threaded connection with a threaded rod. The top end of each threaded rod passes through the box body andextends to the top of the box body. The outer surface of one end, which extends to the top of the box body, of each threaded rod is sleeved by a first bevel gear. The invention relates to the technical field of switchgears with adjustable internal space. According to the switchgear with adjustable internal space, the threaded blocks drive the movable plate to move through the rotation of the threaded rods; the switchgear has a good adjustment function, and can store electrical components of different sizes; the practicality of the switchgear is greatly improved; and the switchgear can meet the needs of different people.

An electrical switchgear comprises a front, a back and a switch arrangement. The switch arrangement comprises a terminal arrangement comprising an electrical contact for a bus and an electrical contact for a load connection which are spaced apart along an axial direction; and a device that is driveable into said terminal arrangement to a service position to make an electrical connection between said electrical contact for said load connection and said electrical connection for said bus. The electrical contact for said load connection is located closer to said back of said switchgear than is said electrical contact for said bus.

The invention provides a cable routing box for an intelligent electronic device of a substation. A plurality of metal ends grounded nearby in multiple modes are arranged on the outer wall of a box body of the routing box, a metal groove is formed in each of two side walls of the box body, a shielding reed is arranged in each metal groove, and two side walls of an upper cover plate are paint-free naked metal. Compared with the prior art, the cable routing box for an intelligent electronic device of a substation obviously weakens the direct influence of transient enclosure voltage rise in a distributed grounding mode, greatly reduces transient current excited thereon, and then reduces disturbance voltage induced on internal cables; the routing box is easy to install and maintain to special structural design of the box body, and the shielding effect of the cable routing box is improved while the influence of enclosure ground potential rise of a GIS (Gas Insulated Switchgear) on the cable of the intelligent electronic device is reduced.

The invention discloses a low-voltage draw-out type switch cabinet. The low-voltage draw-out type switch cabinet comprises three component parts, i.e., a cabinet A, a cabinet B and a cabinet C. The three cabinets are combined to form an integral body, the lower ends of the cabinet A, the cabinet B and the cabinet C are provided with horizontally arranged air inlet fences, the side walls of the cabinet A, the cabinet B and the cabinet C are provided with air outlets, and separator plates are arranged and connected among the three cabinets. The low-voltage draw-out type switch cabinet is reasonable in structural design, good in ventilation and heat dissipation effect and low in noise.

The invention discloses a switch cabinet rapid assembly fixture. The switch cabinet rapid assembly fixture comprises a strip-type guide rail, bearing strip plates, hydraulic push rods, supporting square blocks, T-shaped sliding grooves, long bolts, T-shaped sliding blocks, first motors, first U-shaped plates, second U-shaped plates, second motors, first pneumatic push rods, electric push rods, a cross-shaped plate, a cross-shaped sliding hole, first clamping plates, strip-type steel plates, an I-shaped supporting plate, conveying belts, U-shaped strip frames, second pneumatic push rods, bearings, round rods, strip-type penetrating holes, second clamping plates, pulling plates, bearing seats, horizontal plates, micro motors, gears, circular tubes and threaded rods. The switch cabinet rapidassembly fixture has reasonable design, corresponding framework of a switch cabinet is erected conveniently in a three-dimensional distributed mode, the inconvenience of placing and distributing of switch cabinet framework plates during assembling is overcome, the switch cabinet rapid assembly fixture has the function of orderly and correctly assembling the switch cabinet framework plates used forseamed edge interconnection, facilitates performing rapid bolted connection or welding by an operator, and is suitable for rapid assembling of switch cabinet frameworks with different specifications,and the working efficiency is improved.

The present invention relates to a large creepage distance European joint structure which mainly comprises a high voltage switch connector and a cable connector. An induction coil is arranged in the high voltage switch connector; the wire outlet end of the high voltage switch connector is connected with a high voltage cable by the cable connector; a distance between a conductor in the high voltage switch connector and the secondary low voltage output end of the induction coil is an along surface creepage distance; three outer skirt edges are formed at the rear end of the end, which is connected with the cable connector, of the high voltage switch connector and the three outer skirt edges are simultaneously positioned at the front end of the secondary low voltage output end of the induction coil, so that the along surface creepage distance is 200mm to 265mm; and the secondary low voltage output end of the induction coil is connected with a live display. The large creepage distance European joint structure has the beneficial effects that the service life of a switching cabinet can be greatly prolonged and operation safety of a power grid is ensured; meanwhile, currently, most European cable connection adopts a shielding type product, so that live touch can be realized; and the structure also can greatly improve personal safety of an operator.

The invention discloses a high-voltage switchgear monitoring control circuit comprising a central processing unit, a temperature sensor, a data acquisition module, a data transmission module, an LED display module, an alarm module, and a wireless transmission module. The data transmission module comprises an infrared transmitting processing circuit, an infrared receiving processing module, an infrared transmitting diode, and an infrared receiving diode, wherein the infrared transmitting processing circuit is composed of a waveform generator, a phase inverter, a modulation circuit and an amplifier, and a voltage follower is arranged between the output signal of the infrared receiving processing module and the central processing unit. Acquisition of processed signals is more stable, and clutter can be effectively suppressed under external disturbance.

The invention discloses a high-stability door of a switch cabinet, and belongs to the technical field of switch cabinets. The door comprises a rectangular door body; at least two transverse reinforcing ribs and at least two ranks of longitudinal reinforcing ribs are welded on the inner side surface of the door body; the transverse reinforcing ribs and the longitudinal reinforcing ribs are staggered with each other; the transverse reinforcing ribs are symmetric relative to a transverse center line of the door body; the longitudinal reinforcing ribs are symmetric relative to a longitudinal center line of the door body. According to the high-stability door of the switch cabinet, the strength and rigidity of the whole cabinet door are improved, and the stability is also improved; the cabinet door can be prevented from being twisted and shaken during being opened and closed; the cabinet door is high in strength; the supporting capacity of elements mounted on the cabinet door is also raised, and the firmness and stability are improved.

The invention provides a switch, wherein the contacting/separating electrode part comprises a fixed-side electrode part (1a) and a movable-side electrode part (1b) arranged opposite to the fixed-side electrode part (1a); the movable-side electrode part (1b) It has a movable side electrode shaft (11) that is freely movable and is connected to an operating mechanism; the fixed side electrode part (1a) has a fixed side that contacts/separates between the distal end and the movable side electrode shaft (11) and moves a predetermined distance An electrode shaft (4), an electrode push-out spring (9) for urging the fixed-side electrode shaft (4) to push out the movable-side electrode shaft (11) side, is arranged on the outer periphery of the fixed-side electrode shaft (4), and An electrical contact (7) that contacts/separates from the outer peripheral side surface of the movable-side electrode shaft (11).

The invention discloses a high voltage isolation switchgear cable chamber door interlocking device which comprises an isolation switch operating mechanism, an isolation switch casing body and a cablechamber door. The device is characterized in that the lower end of the isolation switch operating mechanism is connected with the isolation switch casing body; a curved plate is arranged on the isolation switch operating mechanism; a drive curved surface is arranged on the outer edge of the curved plate; the lower end of the curved plate is movably connected with an interlocking rod; the interlocking rod is movably arranged in a round hole in the bottom surface of the isolation switch operating mechanism; a locking plate is fixedly arranged on the inner side of the cable chamber door; and a locking hole which matches the interlocking rod is arranged on the locking plate. According to the invention, the curved plate is arranged on the isolation switch operating mechanism; when the isolationswitch is closed, the second curved surface of the curved plate presses down the interlocking rod; the interlocking rod locks the locking plate of the cable chamber door, and the cable chamber door cannot be opened; and the interlocking mechanism has the advantages of simple structure, safety, reliability, convenient installation and maintenance, convenient inspection, low manufacture cost, beingmaintenance-free and convenient popularization and implementation.

Disclosed is a switch cabinet operation panel of a metal-enclosed switchgear. The switch cabinet operation panel comprises an operation panel body, a secondary plug, a shaking-in mechanism, a transfer vehicle lock hole, a transfer vehicle positioning device, an earthing switch and an emergency unlocking device. One end of the secondary plug is fixedly connected to the position above the operation panel body, the shaking-in mechanism is arranged below the operation panel body, and the transfer vehicle lock hole is arranged below the shaking-in mechanism. The transfer vehicle positioning device is arranged on one side below the transfer vehicle lock hole, the earthing switch is arranged on one side of the transfer vehicle positioning device, and the emergency unlocking device is arranged below the earthing switch. The switch cabinet operation panel of the metal-enclosed switchgear is suitable for a moving-away-type alternating-current metal-enclosed switchgear, can guarantee the switchgear to be used safely and reliably, lowers the danger coefficient, and meanwhile reduces accidents caused by misoperation.

The arrangement has a frame (1) supporting a door (2), which is pivotably tied up at a hinge side at the frame. An adjusting device (4) i.e. clamping plate, is attached to the frame for alignment of the door in closed state. The adjusting device is arranged at the hinge side of the frame and received in a corner part (3) of the frame. The adjusting device is accessed by an installing person while closing the door, and an inner chamber of the corner part is covered by a lid (3a). The adjusting device is fixed at the frame by a fastening screw. An independent claim is also included for an adjusting device for alignment of a numerator cabinet or a dispatcher cabinet door or a switchgear cabinet door in closed state.