50 results about "Padmount transformer" patented technology

Combined type transformer includes: a transformer core; first and second coils provided with respect to the transformer core; first and second inductor cores provided around the first coil; and third and fourth inductor cores provided around the second coil. The transformer core and the first and second coils constitute a transformer, the first coil and the first and second inductor cores constitute a first inductor, and the second coil and the third and fourth inductor cores constitute a second inductor.

The present disclosure is directed to a padmount transformer. The padmount transformer includes an electrical distribution transformer housed in a cabinet that can be mounted on a ground level platform or pad. High / medium voltage connectors of the electrical distribution transformer can connect to high / medium voltage terminals of a power supply network. Low voltage connectors of the electrical distribution transformer are configured to connect to low voltage terminals of one or more loads coupled to respective renewable energy sources. The high / medium voltage connectors and the low voltage connectors are housed in the cabinet. An energy storage apparatus is housed in the cabinet and is connected with the low voltage connectors for supplying power to the loads. Power can be supplied to the energy storage apparatus by the renewable energy sources. An inverter is operable for commanding the power supply direction at the energy storage apparatus and a control unit is configured to control the inverter.

The invention relates to the field of power transformers, in particular to a combined transformer for wind power generation which is matched with a wind generation set. The transformer comprises an oil tank and a winding in the oil tank, wherein the winding adopts a three-winding form and is provided with a low-voltage input, a medium-voltage input end and a high-voltage output end; wherein the winding on the low-voltage side adopts a Z-shaped connection mode, and the lead bus of the winding on the low-voltage side adopts a local double-row parallel structure; a low-voltage chamber, a medium-voltage chamber and a high-voltage chamber which are independent are correspondingly arranged outside the oil tank; and two parallel high-voltage current limiting fuses are arranged in the low-voltage chamber. According to the combined transformer for wind power generation, The transformer structure is improved, and the capacity of the transformer is improved; and moreover, due to the improvement of the capacity, the external structure is adjusted, so that a high-capacity wind generation set is well matched to structure to accord with the mainstream trend of wind generation development.

The invention belongs to the technical field of box-type transformers, and particularly relates to a box-type combined transformer which comprises a box-type transformer body, galvanized plates are fixedly connected to the inner wall of the box-type transformer body, a transformer chamber is arranged between the two galvanized plates, a high-voltage chamber is arranged on the left side of the transformer chamber, and a low-voltage chamber is arranged on the right side of the transformer chamber. According to the invention, through use of an exhaust fan, an air suction pipe and an air guide plate, heat in the box-type transformer body can be effectively discharged; then, through cooperation of a refrigerator, an air inlet pipe, an air pump, an air blowing pipe and the air guide plate, coldair can be blown into the box-type transformer body, and the box-type transformer body can be internally cooled effectively; and through the cooling fan, the flowing speed of the cold air in the box-type transformer body can be increased, so that the cooling effect of the box-type transformer body is improved, and the service life of the box-type transformer body is prolonged.

The invention relates to a combined transformer. The combined transformer comprises a transformer oil tank, a transformer body is arranged in the transformer oil tank, a tap-changer is arranged on oneside of the left or the right of the transformer body, the combined transformer further includes a high voltage fuse installed on the same side with the tap-changer, and the high voltage fuse stretches along forward and backward directions. The high voltage fuse of the combined transformer is arranged on one side of the left or the right of the transformer body, the upper space of the oil tank isnot occupied by the high voltage fuse, accordingly the height of the transformed oil tank is lowered, and the high voltage fuse is installed on the same side with the tap-changer, the inner space ofthe oil tank is sufficiently used, the overall size of the oil tank is reduced, accordingly the cost of the transfer oil tank is reduced.

A combined transformer / inductor device includes a core having a central core leg and an outer core leg spaced apart from the central core leg, an inner bobbin disposed around the central core leg, an outer bobbin disposed around the inner bobbin and the central core leg and having an upper portion having a first oblong portion disposed around the outer core leg, a lower portion having a second oblong portion disposed around the outer core leg, and a central portion disposed around the inner bobbin and the central core leg, a first winding wound around the inner bobbin, and a second winding wound around the outer bobbin, the second winding having a first portion wound around the first oblong portion, a second portion wound around the central portion, and a third portion wound around the second oblong portion.

The invention discloses a sub-box combined type transformer, and belongs to the technical field of transformers. The sub-box combined type transformer comprises a box body, a power transformer, high-voltage switch equipment and low-voltage switch equipment, wherein the interior of the box body is divided into three cavities by partition plates, and the high-voltage switch equipment, the power transformer and the low-voltage switch equipment are arranged in the three cavities respectively. The sub-box combined type transformer further comprises a water collecting tank fixedly connected to the upper end of the box body through a supporting rod; a filter shed fixedly connected to the water collecting tank; and a flow dividing box which is fixedly connected to the box body, wherein an air inlet of the flow dividing box is internally and fixedly connected with a suction fan through a support. When the sub-box combined type transformer is used, the temperature around the sub-box combined type transformer can be adjusted according to the external temperature, the sub-box combined type transformer can stably work in different environments, and the practicability of the sub-box combined type transformer in actual use is effectively improved.

The invention provides a surface layer structure for a combined transformer shell. A door frame, an opening and a radiator shutter are arranged in the transformer shell; and a high pressure chamber door and a low pressure chamber door are arranged in the transformer shell; the surface layer structure is characterized in that by combining the positions of the door frame, the opening and the radiator shutter in the transformer shell, a painting layer in line with the installation environment pattern of the combined transformer is integrally distributed on the high pressure chamber door, the low pressure chamber door and the side wall of the shell; and a layer of protective varnish playing roles of sun shading, rain protection and corrosion prevention is covered on the painting layer. By adopting the surface layer structure and the surface layer processing method provided by the invention, the problem that the appearance of the original combined transformer is inharmonious with the surroundings is solved, patterns fused with the surrounding environment can be painted according to the actual situation no matter in what places, so that harmonious and attractive effects are reached; and moreover, through brushing varnish on the surface, sun shading, rainproof and corrosion-proof requirements of the painted pattern can be ensured, and the service life of the painted pattern is guaranteed.

The present disclosure is directed to a padmount transformer. The padmount transformer includes an electrical distribution transformer housed in a cabinet that can be mounted on a ground level platform or pad. High / medium voltage connectors of the electrical distribution transformer can connect to high / medium voltage terminals of a power supply network. Low voltage connectors of the electrical distribution transformer are configured to connect to low voltage terminals of one or more loads coupled to respective renewable energy sources. The high / medium voltage connectors and the low voltage connectors are housed in the cabinet. An energy storage apparatus is housed in the cabinet and is connected with the low voltage connectors for supplying power to the loads. Power can be supplied to the energy storage apparatus by the renewable energy sources. An inverter is operable for commanding the power supply direction at the energy storage apparatus and a control unit is configured to control the inverter.

The invention provides a combined transformer iron core foot pad supporting device, which belongs to the technical field of transformers and comprises a transformer iron core body, a step end part is arranged on the outer ring edge of the transformer iron core body, a plurality of silicon steel sheets of the transformer iron core body are clamped and fixed by clamping pieces, and a combined cushion block is arranged at the lower end of the transformer iron core body. A foot pad body is arranged at the lower end of the insulation paper, and the foot pad body, the insulation paper, the combined cushion block and the clamping piece are locked through bolts. The invention solves the problems of iron core magnetic circuit distortion, low utilization rate of raw materials in the processing process, low processing yield, long processing period, increase of manpower and equipment cost, extremely high processing precision requirement of the whole structure, low processing cost and the like caused by the fact that the existing transformer iron core foot pad is easy to generate structural deformation in operation. The single cutting error may cause the whole block to be scrapped, and the local damage cannot be modularly repaired and must be integrally replaced, so that the fault-tolerant cost is high.

This invention relates to the field of combined transformer technology and discloses a box-type combined transformer, including a base, a housing fixedly connected to the top of the base, a second dustproof net fixedly connected to the top of the housing, an installation mechanism at the bottom of the housing, a transformer body on the top of the installation mechanism, fixing mechanisms on both sides of the transformer body, and heat dissipation mechanisms on both sides of the housing. The installation mechanism includes a support base, each fixedly connected to the bottom of the housing, and mounting shells fixedly connected to both sides of the top of the support base. This box-type combined transformer greatly facilitates maintenance personnel in repairing the transformer when damage occurs. Maintenance personnel can quickly remove the transformer from its installation location and transport it to a dedicated maintenance area for inspection and repair, effectively shortening maintenance time and reducing power outage time caused by transformer failure.

The application discloses a box type combined power transformer and relates to the technical field of power transformers. The box type combined power transformer comprises a box body. A combined transformer is fixedly installed on the inner wall of the box body. The box body is used for placing and protecting the combined transformer. A radiator is fixedly installed on the top of the box body. A top plate is fixedly installed on the top of the box body and used for protecting the radiator. The radiator is used for radiating the inner wall of the box body. The combined transformer is fixedly installed on the inner wall of the box body. Rainwater automatically flows through the radiator pipe and enhances heat dissipation, so that the temperature inside the box body can be effectively reduced, the heat dissipation effect of the combined transformer is improved, the risk of combined transformer failure caused by overheating is reduced, and thus the reliability and service life of the equipment are improved.

The invention belongs to the technical field of high-frequency transformers, and relates to a combined type 3D building block transformer based on a vertical POL power supply. Comprising sub-transformers, and a combined transformer formed by combining a plurality of sub-transformers according to transverse expansion and / or longitudinal expansion; each sub-transformer comprises a magnetic core, a rectifier tube, an output capacitor, a power output terminal, a primary winding and a secondary winding; the magnetic core is of an EI-shaped structure, and the secondary winding is sequentially connected with the rectifier tube, the output capacitor and the power output terminal in series. The rectifier tube is used for limiting the current direction; the output capacitor is used for filtering an alternating current component; power output terminals of the sub-transformers are integrated in the transformer; the primary winding is coupled with the secondary winding and the rectifier tube; the plurality of sub-transformers can be combined into the combined transformer according to transverse expansion and / or longitudinal expansion; a vertical power supply framework is adopted, and compared with a traditional scheme, the PDN impedance of a load point converter is effectively reduced; the combined transformer improves the efficiency and the current density of the converter.

The application discloses a combined transformer based on a multi-winding transformer and a converter and a control method thereof, and relates to the field of transformers.The combined transformer comprises a single-phase circuit topology and a three-phase circuit topology, wherein the three-phase circuit topology is combined on the basis of the single-phase circuit topology; the single-phase circuit topology comprises an electromagnetic multi-winding transformer, an AC / AC power electronic converter and a bypass switch K.Each phase of the electromagnetic multi-winding transformer is composed of a set of high-voltage windings W HV and two sets of low-voltage windings W lv1 and W lv2 which are wound on the same core.In the application, the output voltage and capacity of the converter are only 1 / (n+1)(n>1) of the output voltage and capacity of the combined transformer, so that the capacity and cost of the converter are reduced.The output voltage u2 of the converter is adjusted to realize the adjustment of the supply voltage u an of the load, and the input current i x of the converter is adjusted to realize harmonic control and reactive power compensation.

The invention belongs to the technical field of transformers, and aims to solve the problem of no axial heat dissipation channel inside the existing transformer cake coil, and specifically relates to a combined transformer coil support system, including a multi-layer support component for carrying the coil cake, a multi-layer The support assembly is connected by an axial connection assembly; the support assembly includes M combined spacer units radially arranged on each layer of coil cake; the combined spacer units arranged on adjacent coil cakes are arranged in a staggered manner; the combined spacer unit includes two slots Two grooved gaskets, two grooved gaskets are respectively arranged on the upper and lower sides of each layer of coil cake; one end of the grooved gasket is provided with a first opening slot opening inward, and a bracket assembly is arranged in the opening slot, and the bracket assembly is set There is a second open slot perpendicular to the first open slot, which opens inwardly, and is used to embed multi-turn windings; through the present invention, multiple axial heat dissipation channels can be provided in the coil cake, which simplifies the coil structure and enhances the coil strength at the same time , effectively improve the overall heat dissipation efficiency.

The invention relates to the technical field of transformer manufacturing, in particular to a three-phase combined transformer which comprises an A-phase transformer, a B-phase transformer and a C-phase transformer. The bottoms of the A-phase transformer, the B-phase transformer and the C-phase transformer are fixedly connected with steel underframes; a corrugated pipe is fixedly connected between the A-phase transformer and the B-phase transformer, and a lead is arranged in the corrugated pipe, so that the B-phase transformer and the C-phase transformer are electrically connected; a corrugated pipe is also fixedly connected between the B-phase transformer and the C-phase transformer; according to the invention, the three-phase integrated on-load tap-changer is reasonably arranged, the arrangement mode of leads is improved, the workload of lead channels and field installation is reduced, and the internal insulation performance and the field installation quality of the transformer are ensured; the corrugated pipe and the integral steel underframe are reasonably arranged, so that the adjusting quantity of field installation is ensured, and the installation error is avoided; the transformer is small in on-site occupied area and light in transportation weight.

The utility model relates to the field of combined transformers, and discloses an easy-to-maintain combined transformer which comprises a shell, one side of the shell is fixedly connected with a supporting plate, one side of the supporting plate is fixedly connected with a first motor, and the first motor is provided with a protection assembly capable of preventing rainwater from entering. A thickening plate is installed on the shell, a rotating assembly capable of moving the transformer is arranged on the thickening plate, the protection assembly comprises a rotating shaft, the rotating shaft is fixedly connected to the output end of a first motor, a first bevel gear is fixedly connected to the outer wall of the rotating shaft, a second bevel gear is arranged on the first bevel gear, and the second bevel gear is fixedly connected to the outer wall of the rotating shaft. The first bevel gear is meshed with a second bevel gear, one side of the second bevel gear is fixedly connected with a threaded rod, the threaded rod is in threaded connection with a side plate, one end of the threaded rod is rotationally connected with a fixing plate, and the fixing plate is fixedly connected with the shell.

A 35 kV combined transformer shaped like a Chinese character 'pin' is characterized in that a low-voltage switch equipment chamber, a high-voltage cable chamber and a transformer body are arranged on a mounting plane in a shape like the Chinese character 'pin', a high-voltage switch operation box and a high-voltage fuse operation box are respectively arranged at two ends of the transformer body, and box doors of the high-voltage fuse operation box and the high-voltage switch operation box are mutually independent and are not on the same operation plane; the high-voltage switch operation box and the high-voltage cable chamber box door are mutually independent and are on the same operation surface; and the high-voltage fuse operation box and the low-voltage switch equipment chamber box door are mutually independent and are on the same operation surface. According to the combined transformer, the expansion space of a low-voltage loop is ensured, the installation requirement of multiple low-voltage loop incoming and outgoing lines is met, the layout is more reasonable, and the space utilization rate is higher; the function interval is clearer, the high-voltage switch equipment and the high-voltage fuse are mutually independent in side operation, and operation and maintenance are convenient and safe; and the arrangement of the radiator is not influenced by high and low voltage chambers, the arrangement space is larger, and the temperature rise of the product can be controlled.

The invention relates to a remote operation sub-box combined transformer. The transformer comprises a main oil tank, an auxiliary oil tank and a transformer body; the auxiliary oil tank penetrates through the upper portion of the main oil tank, and a full-sealed structure is formed between the auxiliary oil tank and the main oil tank; a fuse and a load switch are arranged in the auxiliary oil tank; a low-voltage chamber and a transformer chamber are arranged on the front side of the transformer main oil tank in parallel; a high-voltage bushing of the transformer is directly ejected out of thetank cover and is connected with a high-voltage line through an overhead conductor; and an independent fuse chambe, is arranged on one side of the main oil tank and is isolated from the main oil tank.By adopting a high-voltage overhead line structure, a high-voltage cable can be directly connected to the supporting insulator from a line, the use amount of user cables, cable trench construction and the like can be saved, and the remote operation sub-box combined transformer has the characteristics of simple structure, reliable performance, good sealing effect, convenience in installation, complete protection functions, small occupied area and convenience in maintenance.

The invention discloses a combined transformer of a wind generating set. The combined transformer comprises single-phase transformers, a high-voltage switch cabinet and a low-voltage switch cabinet, wherein the single-phase transformers comprise a first single-phase transformer, a second single-phase transformer and a third single-phase transformer, the first single-phase transformer, the second single-phase transformer and the third single-phase transformer are uniformly arranged at the periphery of a fan tower, the first single-phase transformer, the second single-phase transformer and the third single-phase transformer are connected to form a Dyn11 connection group, one end of the high-voltage switch cabinet is connected with a high-voltage winding of the single-phase transformers, theother end is connected with a power transmission line, one end of the low-voltage switch cabinet is connected with a low-voltage winding of the single-phase transformers, and the other end is connected with the fan generator. The combined transformer is advantaged in that the single-phase transformers are uniformly arranged on the periphery of the fan tower, so the capacity of the transformers isnot limited by the space in the fan tower, the bottom section of the fan tower can be uniformly stressed, and the transformers are arranged on the periphery of the fan tower, so the transformers are better in heat dissipation performance and more convenient to maintain.

A separating and sealing device of a low-voltage connecting box of a three-phase combined type transformer comprises a plurality of supports installed in the low-voltage connecting box, a plurality of separating plates are connected to the supports, and inflatable air bag sealing rings are arranged between the separating plates and the low-voltage connecting box. The two separating and sealing devices are installed in the low-voltage connecting box, then the sealing rings are inflated, the gaps between the separating plates and the low-voltage connecting box, the gaps between every two adjacent separating plates and the gaps between the separating plates and the flow guide copper pipes are sealed through the expansion sealing rings, and therefore the difficult problems of phase-by-phase oil discharging and phase-by-phase overhauling of a transformer are solved.

The utility model discloses a combined transformer for solar photovoltaic power generation, which comprises a main body frame and a transformer chamber, a low-voltage chamber is arranged on one side in the main body frame, a high-voltage chamber is arranged at the middle position in the main body frame, and a high-voltage operation chamber is arranged on the other side in the main body frame. The bottom ends of the two sides of the main body frame are fixedly connected with electrostatic elimination structures, a dustproof cleaning structure is installed in one end of the high-voltage operation chamber and comprises air inlet grid trays, air inlets, a guide frame, a supporting frame, a double-reciprocating lead screw, an internal thread sliding sleeve, a connecting rod and a scraping block, and the air inlet grid trays are installed in the low-voltage chamber, the high-voltage chamber and the high-voltage operation chamber. Under the driving of the motor, the double reciprocating screw rods drive the two groups of internal thread sliding sleeves to transversely move in a reciprocating manner, and under the connection of the connecting rod, the internal thread sliding sleeves drive the scraping block to move when moving in a reciprocating manner, and the scraping block is used for cleaning dust in the air inlet.

The invention provides a photovoltaic power generation-oriented combined transformer intelligent adaptation control method and system. The method comprises the following steps of: obtaining an operation state vector of a transformer system; the running state vectors at each moment form a running state vector sequence according to a time sequence. And performing trend extraction according to the running state vector sequence to obtain trend feature representation. And performing penalty calculation on the trend characteristic representation according to power slope constraint and temperature inertia to obtain a trend index set. And calculating according to a preset mapping function and the trend index set to obtain the contribution degree weight of each control channel. And performing strategy generation according to a preset control strategy optimization function and the contribution degree weight to obtain a control activation combination, and controlling the transformer system based on the control activation combination. Wherein the control activation combination is used for indicating whether the corresponding control channel is activated or not. Dynamic feed-forward adjustment of a transformer system is achieved, and stability is improved.

The invention discloses a winding system of a combined annular transformer. The system comprises a semi-arc transformer winding insulating framework to be wound, the semi-arc transformer winding insulating framework is an arc-shaped insulating sleeve structure, and a semi-arc iron core bin is arranged in the semi-arc transformer winding insulating framework; and a first outer edge and a second outer edge are integrally arranged at the two ends of the arc structure of the semi-arc transformer winding insulating framework respectively. The winding system is simple in structure, the winding device of the annular transformer is simpler in structure and designed for the novel combined transformer, and a specific working principle and a technical progress are shown in the specific implementation mode of the specification.

The invention discloses a sub-box combined transformer, which belongs to the technical field of transformers. A box-divided combined transformer, including a box body, a power transformer, a high-voltage switchgear, and a low-voltage switchgear. In the three cavities, it also includes: a sump, which is fixedly connected to the upper end of the box through a support rod; a filter shed, which is fixedly connected to the sump; a diversion box, which is fixedly connected to the box, wherein , the air inlet of the splitter box is fixedly connected with a suction fan through a bracket. When the present invention is in use, the temperature around the split-box combined transformer can be adjusted according to the level of the external temperature, so that the split-box combined transformer can It can work stably under different environments, effectively improving the practicability of the sub-box combined transformer in actual use.

The present application relates to transformer manufacturing technical field, specifically a kind of three-phase combined transformer, including A-phase transformer, B-phase transformer and C-phase transformer;The bottom of A-phase transformer, B-phase transformer and C-phase transformer is fixed with steel chassis;A-phase transformer and B-phase transformer are fixed with bellows, and lead wire is arranged in bellows, so that B-phase transformer and C-phase transformer are electrically connected;B-phase transformer and C-phase transformer are also fixed with bellows;The present application reasonably arranges three-phase integrated load tap changer, improves the arrangement mode of lead wire, reduces the workload of lead wire channel and field installation, ensures the internal insulation performance of transformer and field installation quality;Reasonably set up bellows and integral steel chassis, ensure the adjustment amount of field installation, avoid installation error;Transformer field occupies small area, and transportation quality is light.

The invention belongs to the technical field of box-type transformers, in particular to a box-type combined transformer, comprising a box-type transformer body, the inner wall of the box-type transformer body is fixedly connected with a galvanized plate, and a galvanized plate is arranged between two galvanized plates There is a transformer room, a high-voltage room is arranged on the left side of the transformer room, and a low-voltage room is arranged on the right side of the transformer room. The use of the exhaust fan, air suction pipe and air deflector of the present invention can effectively discharge the heat inside the box-type transformer body, and then through the cooperation of the refrigerator, air intake pipe, air pump, air blowing pipe and air deflector, the cold air can be discharged Blowing into the inside of the box-type transformer body can effectively cool down the inside of the box-type transformer body, and the use of a cooling fan can speed up the flow of cold air inside the box-type transformer body, thereby improving the heat dissipation of the box-type transformer body As a result, the service life of the box-type transformer body is prolonged.

The utility model discloses a three-phase combined transformer, and relates to the technical field of transformers, the three-phase combined transformer comprises a base, a low-voltage wire outlet device, a neutral point wire outlet device and three single-phase transformers, the low-voltage wire outlet device is provided with three low-voltage bushings; the neutral point wire outlet device is provided with a neutral point sleeve; each single-phase transformer comprises an oil tank, the three single-phase transformers are installed on the base at intervals in the second horizontal direction, the tank walls of the two opposite sides of each oil tank in the first horizontal direction are provided with a high-voltage outgoing line interface and a neutral point outgoing line interface respectively, and the top tank wall of each oil tank is provided with a low-voltage outgoing line interface. The high-voltage outgoing line interfaces, the neutral point outgoing line interfaces and the low-voltage outgoing line interfaces of the single-phase transformers do not interfere with one another and do not affect interval arrangement of the three single-phase transformers, the line crossing situation during outgoing of the three-phase combined transformer is reduced, wiring is simple, the three-phase combined transformer is more compact in structure and reasonable in layout, and the occupied area is effectively saved.

The invention relates to the technical field of automatic voltage regulating transformers, in particular to an automatic capacitance and voltage regulating combined transformer system. A conductive assembly, a mounting groove, a mounting block, a cylindrical groove, a conductive column and an adjusting block are arranged; the two sections of the conductive column are rotationally connected, and the joint of the two sections of the conductive column is conducted through a conductive piece; a spiral groove is formed in the outer side of the section, away from the adjusting block, of the conductive column; a guide block is arranged in the cylindrical groove; when the conductive column moves towards the direction of the mounting disc and slides in the cylindrical groove, the guide block is fixed in the cylindrical groove, and the guide block slides in the spiral groove, so that the guide column guides the conductive column, the conductive column rotates, and in the process that the conductive column slides towards the mounting disc, the guide block is fixed in the cylindrical groove. Therefore, the friction effect between the inner wall of the cylindrical groove and the surface of the conductive column is improved, and the condition that the conductive performance of the conductive column is affected due to oxide on the surface of the conductive column is further avoided.