9results about How to "Reduce partial discharge" patented technology

The utility model belongs to the technical field of high voltage measuring devices, and discloses a resistance-capacitance voltage divider and an electronic voltage transformer, the resistance-capacitance voltage divider comprises an insulation support cylinder, a resistance-capacitance voltage dividing plate is arranged in the insulation support cylinder, the resistance-capacitance voltage dividing plate comprises a PCB circuit board, a plurality of passive element modules are fixed on the PCB circuit board, and the passive element modules are fixed on the insulation support cylinder. The passive element module is covered with a resistance welding spot shielding block, the top of the insulating supporting cylinder is provided with a high-voltage end wiring terminal, the bottom of the insulating supporting cylinder is provided with a base with a through hole, one end of the passive element module is electrically connected with the high-voltage end wiring terminal, and the other end of the passive element module is electrically connected with a coaxial cable signal wire penetrating out of the base; arc-shaped notches are formed in the two sides of the PCB. According to the utility model, the resistance welding spot shielding block is arranged on the resistance-capacitance voltage-dividing plate, so that the partial discharge of the high-voltage arm is reduced, the stability is improved, and the used space is reduced by arranging the resistance-capacitance voltage-dividing plate in the insulating support cylinder.

The low-loss flow guide cylinder is provided with the flow guide cylinder, the flow guide space is arranged in the flow guide cylinder, the assembly part is arranged on one side of the flow guide cylinder, the assembly part is an assembly flange, and bolts for assembly are arranged on the assembly flange, so that the risks of partial discharge and insulation breakdown caused by non-uniform electric fields are reduced, and the reliability of the flow guide cylinder is improved. When the electrical components need to be arranged, the electrical components can be arranged in the flow guide space, the middle flow guide valve block is arranged in the flow guide space, and different electrical components are separated by the middle flow guide valve block, so that the electric field released by the electrical components is more uniform, and the problem of non-uniform distribution of the electric field is avoided.

The utility model discloses a kind of feeding mechanism for full-automatic tab forming machine in the field of tab forming machine, including tab forming machine body;Tab forming machine body left side is set reciprocating type distributing mechanism and adjustable static elimination mechanism;Driving motor makes driving gear through front and back transmission gear and half gear, transmission toothed plate and transmission rod transmission to reciprocating push limit baffle and cooperate with buffer rubber pad to stop piece material;Adjustable static ion wind bar can be adjusted in height by pitch screw rod and be limited by limit rail, and this feeding mechanism for full-automatic tab forming machine works cooperatively by reciprocating type distributing mechanism and adjustable static elimination mechanism, prevents piece material stacking and static electricity generated by friction by physical distribution and adjustable static neutralization double means, and real-time eliminates residual static electricity, to significantly improve feeding stability, reduce failure rate and improve the continuous automatic processing capacity of forming process and product qualification rate.

The utility model discloses a winding wire welding fixing equipment for transformer, including operation platform base and with its connection's welding fixed component, welding fixed component, including the support of welding in operation platform base on the up, the fixed platform of operation platform base front end forward extension, the light hole of support installs the screw rod with rotary handle, the outer wall of telescopic link is welded below the support, the telescopic pressure rod is covered in telescopic link outer wall, the lower end of telescopic pressure rod is welded the pressure plate, and the pressure plate corresponds with fixed platform upside and down, and the welding piece is clamped, and telescopic pressure rod is connected with screw rod. This design mainly applies the welding fixing of the winding of transformer. The utility model discloses the beneficial effect is, through the practice proves, the use of winding wire welding fixing equipment for transformer can realize the welding fixing of various specifications of wire, avoids the welding shake, misplacement and other problems of the manual holding fixed wire of previous manual holding fixed wire, guarantees the butt joint of wire flush, stable.

The application relates to the technical field of solid insulation ring network cabinets, in particular to a solid insulation ring network cabinet, which comprises a cabinet body, the inner part of the cabinet body is respectively provided with a phase unit module, an operating mechanism module and an insulation support module, the phase unit module, the operating mechanism module and the insulation support module are mutually independent modules, and the phase unit module, the operating mechanism module and the insulation support module are respectively independently formed through split type automatic pressure gel pouring; the phase unit module, the operating mechanism module and the insulation support module are respectively independently formed through split type automatic pressure gel pouring, so that the solid insulation ring network cabinet is compact in structure after being assembled and formed, space is saved, the cabinet body width can be reduced from the traditional 500 mm to about 350 mm, space is saved and the transformation cost is reduced, meanwhile, the situation that a whole pouring cabinet is scrapped due to local problems is avoided, and the operation and maintenance cost and the whole life cycle cost are greatly reduced.

The utility model relates to power equipment technical field, concretely relates to a kind of anti-flashover insulator, including insulator body, insulator body is composed of outer insulating sleeve and the core rod of being arranged in outer insulating sleeve, the inside of core rod is provided with metal shielding strip along the core rod height direction setting, umbrella skirt is integrally formed on the outer surface of outer insulating sleeve, umbrella skirt is alternately arranged and is composed of multiple big umbrella skirts and multiple small umbrella skirts, the top surface of big umbrella skirt and small umbrella skirt is all provided with second slope, the surface of second slope is provided with super-hydrophobic coating, the edge portion of big umbrella skirt and small umbrella skirt is provided with multiple ring-like equidistant arrangement tooth tip, recess is arranged between two tooth tips adjacent to each other.The utility model has good anti-flashover protection effect, and it is beneficial to the stable operation of system.

The invention discloses a design method and system of a basin-type insulator particle catcher and a medium, relates to the technical field of high-voltage equipment manufacturing, and aims to improve the insulation reliability of a direct-current GIL power transmission system and guarantee safe and stable operation of a power transmission line in a special environment. Metal particles generated in the production, transportation, assembly and operation processes of the GIL may damage the insulation performance of equipment and cause discharge accidents. Through collaborative optimization of geometric structures of the basin-type insulator and the particle catcher, electric field distribution is changed, the influence of metal particles on the insulation performance is reduced, the probability of partial discharge and surface flashover is reduced, and the safety and reliability of equipment operation are guaranteed.

The utility model belongs to the technical field of mutual inductor, disclose a kind of high safety's fuse and voltage transformer.The fuse includes main spare, spare and rotary switch;The rotary switch is electrically connected with line primary high voltage end, including conducting position and several insulation positions;The main spare and the spare are electrically connected with the different working positions in the rotary switch respectively;The main spare and the spare all include first high voltage shield, second high voltage shield, insulating cylinder and fuse main body;The insulating cylinder gap is worn in the first high voltage shield, one end of the fuse main body gap is worn in the second high voltage shield, the other end is adapted and worn in the insulating cylinder;Wherein, the outside wall of the insulating cylinder is conductive structure, and the inside wall is insulating structure.The utility model has more excellent current protection effect.

The present application provides a kind of integrated residual detection and ignition point prediction mineral oil transformer low carbonization intelligent reconstruction method and system, method includes: construction low carbonization refill process system, replace the mineral oil in transformer with natural ester insulating oil;The residual proportion of mineral oil in mixed insulating liquid sample is quantitatively detected, and the residual detection result is obtained;In the depth filling stage of low carbonization refill process, a predetermined proportion of nano additive is added to the natural ester insulating oil, and a performance optimization scheme is constructed;The residual detection result and the nano additive concentration in the performance optimization scheme are input into the pre-trained model, the predicted ignition point of the current mixed insulating liquid is calculated and output in real time, and safety warning is carried out based on the predicted ignition point.The technical scheme of the present application not only directly solves the single bottleneck of performance optimization, but also indirectly strengthens the effect of residual control and safety monitoring, to ensure the high reliable operation of the transformer after reconstruction under the premise of low carbon emission.