14results about "Supporting insulators" patented technology

The application belongs to the technical field of insulator zero value defect diagnosis. A preparation method of a self-diagnosis slice film of an experimental insulator, characterized in that the method comprises the following steps: 1) preparing electroluminescent paint: taking polydimethylsiloxane as paint base, and adding ZnS:Cu fluorescent powder into the polydimethylsiloxane; 2) cleaning and ultraviolet irradiating a glass sheet; 3) preparing a film by a doctor blade method: after calibrating the position of the doctor blade, evenly spreading the electroluminescent paint on the glass sheet by a small spoon; 4) curing and cutting the coating part: placing the glass sheet with the film into a vacuum drying box, curing the glass sheet with the film at a temperature of 115-125 DEG C for 1-4 h, and then cutting the coating part on the glass sheet. The method can control the thickness and uniformity of the electroluminescent film, reduce the error that may occur when manually spraying the electroluminescent paint on the insulator, and the slice film has certain toughness after curing, and cannot be easily damaged, and can be repeatedly tested or used.

The application belongs to the technical field of power distribution equipment, and particularly relates to a lightning protection column type porcelain insulator with a built-in annular discharge gap. The annular electrode of the lightning protection column type porcelain insulator is prone to pollution, which leads to a decrease in the discharge voltage, causes mis-discharge, accelerates damage and increases operation and maintenance costs. The present application discloses the following scheme, which comprises a core rod, an insulator body is arranged on the outer wall of the core rod, and a setting frame is fixedly connected to the lower end of the outer wall of the core rod. The lightning protection column type porcelain insulator with a built-in annular discharge gap has the advantages that the arc surface cleaning plate is driven by the wind to rotate along the surface of the annular electrode by using the lightning protection cleaning assembly, and the plurality of bristles on the arc surface cleaning plate clean the dust and impurities on the annular electrode in the process, so as to ensure the cleanliness of the surface of the annular electrode, thereby avoiding the decrease in the discharge voltage of the gap caused by the dust on the surface of the annular electrode, and preventing the early discharge or mis-triggering. The insulator is not damaged, and the power equipment is protected.

The present application belongs to the field of direct current transmission, and particularly relates to a support insulator, an insulating support structure and a direct current GIL. In order to solve the technical problem that the electric field lines pass through the support insulator in the prior art, resulting in that the normal field intensity of the side surface of the support insulator is too large, the present application provides a support insulator, which comprises a high-potential support surface for supporting a conductive rod, a low-potential support surface for supporting an insulating cylinder and a side surface, the high-potential support surface and the low-potential support surface are both arc surfaces, the axis of the high-potential support surface and the low-potential support surface corresponds to the axis of the matched conductive rod, and the extension line of the projection of the side surface of the support insulator in the direction of the axis of the corresponding conductive rod intersects with the axis of the conductive rod. The present application further provides an insulating support structure and a direct current GIL using the support insulator. By making the electric field lines parallel to the side surface of the support insulator, the normal field intensity of the side surface of the support insulator can be reduced, and the surface flashover voltage and the insulating strength of the support insulator can be improved.

The lightning protection column type insulator structure of the power distribution line comprises a conductive mounting bracket, a main insulator, an auxiliary insulator, and guide arcs, the upper end of the main insulator is connected with one end of a first guide arc, a conductive sheet is arranged in the first guide arc and penetrates the first guide arc horizontally, the lower end of the main insulator is connected with one end of a second guide arc, the upper end of the auxiliary insulator is connected with one end of a third guide arc, and the lower end of the auxiliary insulator is connected with the conductive mounting bracket, a switching mechanism is arranged between the main insulator and the auxiliary insulator, the switching mechanism comprises a rotating shaft and an upper swing rod and a lower swing rod arranged on the rotating shaft, the upper swing rod and the lower swing rod each comprise a conductive rod penetrating the middle part of the swing rod and a conductive head connected with the end part of the conductive rod, the lower swing rod is connected with a conductive shaft in the rotating shaft, when the rotating shaft rotates, the conductive head can slide from one end of the corresponding guide arc to the other end, and the current is switched from the main insulator to the auxiliary insulator or from the auxiliary insulator to the main insulator, and the structure can avoid the occurrence of a one-way grounding fault.

The utility model discloses a kind of glue mounting structure and high-strength column type insulator, relate to insulator field, including the glue mounting structure body formed after glue mounting material forming, the upper and lower ends of glue mounting structure body are respectively provided with receiving portion and compression part, receiving portion is used to limit glue mounting material leakage, compression part is used to compress glue mounting material to receiving portion, glue mounting material is formed after being compressed to form glue mounting structure body, glue mounting structure body is cylindrical structure.The utility model glue mounting material in glue mounting channel is compressed tightly, structural strength is highly traditional glue mounting structure, when glue mounting structure body forms, can be tightly fixed occlusion in annular groove, increase the interlaminar connection strength between insulator main body and glue mounting structure body, simultaneously, since the outer circle of stand has external thread, when glue mounting structure body forms, the interlaminar connection strength between stand will also be improved.

Disclosed in the present application is a composite cross arm, comprising: a first cross arm, the first cross arm being an inverted V-shaped structure, and the top and two ends of the first cross arm being respectively used for hanging conductors; two second cross arms, one end of each of the two second cross arms being connected to a middle of the first cross arm, the other end of each second cross arm being used for connecting to a utility pole, each second cross arm being inclined in the length direction, and the second cross arms being arranged below the first cross arm and located in the same vertical plane as the first cross arm; and two connecting fittings, the other ends of the two second cross arms being respectively connected to two sides of the utility pole by means of the two connecting fittings. The composite cross arm of the present application uses a fully insulated structure and increases the overall hanging height of the conductors by means of the second cross arms, such that accidents such as tripping caused by bird electric shocks can be effectively avoided, thus achieving higher safety and lower operation and maintenance costs. Further disclosed in the present application is a power transmission tower.

Disclosed in the present application is a composite cross arm, comprising: two first cross arms, wherein first intermediate portions of the first cross arms are respectively fixed to two sides of a pole body, and the lengthwise directions of the first cross arms are located in the same horizontal plane and are parallel to each other; two first connection assemblies, wherein corresponding ends of the two first cross arms are connected together by means of the first connection assemblies, and two ends of each first connection assembly are respectively configured to be connected to two first wire clips; a second connection assembly, wherein corresponding second intermediate portions of the two first cross arms are connected together by means of the second connection assembly, which is configured to be connected to a second wire clip, and the second wire clip is located below the first cross arm; and two tension members, wherein one end of each tension member is connected to the first intermediate portion of each of the two first cross arms, the other end of each tension member is configured to be connected to the first wire clip, and the lengthwise direction of each tension member and the lengthwise direction of each first cross arm are located in the same horizontal plane and are perpendicular to each other. The composite cross arm in the present application uses a fully insulated horizontal structure, and a jumper is hung and fixed below the cross arm, such that accidents such as tripping caused by bird electrocutions can be prevented, and thus the safety level is higher, and the operation and maintenance costs are lower. Further disclosed in the present application is a power transmission pole.

A kind of stick support porcelain insulator rubber mounting positioner belongs to stick support porcelain insulator manufacturing technical field, and the upper and lower limit modules of floor stand are limited.The measuring module is in the middle of floor stand.The insulator is fixed by lower and upper limit modules, then the limit is removed, the insulator is rotated and the straightness is measured by measuring module for correction, the insulator is fixed again by lower and upper limit modules to rubber mounting forming, through the segmented adjustable structure of limit module, combined with the rigid support of support, the precise coaxial adjustment of porcelain and flange is realized, the axis offset problem of manual visual adjustment in traditional process is solved, the cumulative error is effectively suppressed, the straightness is strictly controlled within the threshold value required by standard and the precision is higher, the uneven stress distribution of dangerous section is reduced, the stress concentration risk is significantly reduced.The lagging defects of traditional solidification after sampling inspection are avoided, the incidence of irreversible defects is reduced, and the production cost is reduced.

This application discloses a photovoltaic DC microgrid system for electrolytic aluminum, belonging to the field of aluminum electrolytic cell power supply technology. The DC microgrid system provided by this application includes: a prefabricated compartment; a positive bus protection cabinet, the input terminal of which is connected to the positive DC output terminal of the prefabricated compartment, and the output terminal connected to the input terminal of a positive bus fuse cabinet, the output terminal of which is electrically connected to the aluminum electrolytic DC positive bus; a negative bus protection cabinet, the input terminal of which is connected to the negative DC output terminal of the prefabricated compartment, and the output terminal connected to the input terminal of a negative bus fuse cabinet, the output terminal of which is electrically connected to the aluminum electrolytic DC negative bus; post insulators; the aluminum electrolytic DC positive bus and the aluminum electrolytic DC negative bus connect to multiple aluminum electrolytic cells. This achieves safe access of photovoltaic DC power in the aluminum electrolysis environment.

This invention belongs to the field of insulator technology and discloses a composite post insulator structure that can protect against lightning. It includes a base and an installation assembly. An insulator body is mounted on the top of the base, and composite connectors and a composite flange are provided on the circumferential surface of the insulator body. The installation assembly includes an installation plate, an elastic telescopic block, an anti-tilt groove, an installation hole, a shielding plate, a shielding spring, and a connecting block. The installation plate is fixedly mounted on the top of the base, and the elastic telescopic block is fixedly mounted on the top of the installation plate. The anti-tilt groove is formed on the circumferential surface of the composite flange. When the free end of the elastic telescopic block moves rearward, it contacts the inner wall of the anti-tilt groove and limits the composite flange. The contact between the free end of the elastic telescopic block and the inner wall of the anti-tilt groove forms a limiting effect, which can directly counteract the tipping and falling of the insulator body caused by strong winds or operational collisions.

The utility model relates to busbar assembly and gas insulation equipment, busbar assembly includes: pipeline shell, insulator, the insulator is supported in the inner wall of pipeline shell, and the center of insulator is provided with the metal insert of tubular, the metal insert is provided with the first through -hole through its wall, conducting rod, the conducting rod passes through the metal insert axially, and is provided with the recess with the first through -hole radial alignment, and pin, the pin passes through the first through -hole and is located in the recess with shape mutual match, and the pin is provided with the second through -hole to be detachably connected to the conducting rod through the fastener of second through -hole, according to the utility model busbar assembly has good structural stability, will not loosen, and can realize repeated dismounting.