Output Voltage110V220V380V400V415V Triangle Structure Three Dimenional Wound Ironcore Power Transformer

Product Description

 

 

 

 

 

 

 

Technical objectives
Technical performance target values of S11-M.Rl three-dimensional triangular wound core distribution transformer: Compared with the s9 transformer with the same capacity and laminated core structure, no-load loss is reduced by 30%, no-loadcurrent is reduced by more than 70%, and noise is reduced by 6-10 dB(A);@ Compared with the S11 transformer with the same capacity and laminated core, the $11 three-dimensional wound core transformer saves about 20% of silicon steel sheet usage, 2-3% of copper usage, reduces no-load current by 70%, and reduces noise by 5 dB(A)-gdB(A);
Technical performance target values of $13-M.Rl three-dimensional triangular wound core distribution transformer: Compared with the on-line operating s7 transformer with the same capacity, no-load loss is reduced by 55%, load loss is reduced by33%, no-load current is reduced by more than 85%, and noise is reduced by 8-13 dB(A).(2 Compared with the s9 transformer with the same capacity, no-load loss is reduced by 50%, no-load current is reduced by more than80%,and noiseis reduced by8 dB(A)-11 dB(A).( Compared with the s11 transformer with the same capacity, without increasing materials, no-load loss is reduced by more than 25%no-load currentis reduced by 70%,and noise is reduced by 7 dB(A)-10 dB(A).(@ Compared with the $13 transformer with the same capacity and laminated structure, it saves more than 20% of silicon steel sheet usage2-3% of copper usage,and reduces noise by 5 dB(A)-8 dB(A).
Technical route

1.The key technologies lie in:
 

core design, core winding, core vacuum annealing, coil winding, and R&D and manufacturing of related tooling equipment.1.Core design technology: The high-efficiency energy-saving $13-M.Rl three-dimensional triangular wound core transformer is developed by our company based on the mass production of $11-type three-phase wound core transformers (with planar core arrangement), Through magnetic circuit analysis, it breaks through the framework of traditional structures, Three identical rectangulal semi-circular cross-section wound cores are combined into an equilateral three-dimensional three-phase transformer core, making the three-phase core magnetic circuit completely symmetrical, significantly reducing magnetic resistance, exciting current, and no-load loss and becoming a new type of high-efficiency energy-saving triangular wound core transformer with lower operation noise and a more compact structure, The key technology lies in the design of three single frames, The curve cutting machine design software is used for analysis, design, and calculation to ensure good fitting of the joint surfaces when the three single frames are assembled.

2.Core winding technology:
The design of the wound core winding machine is the key technology. Each single frame is formed by sequentially and continuously winding several silicon steel strips into a trapezoidal cross-section structure. The winding of the single frame is carried out on a special wound core winding machine. when the strip is wound by this core winding machine, the machine will automatically and accurately complete a 30-degree inclination of the strip, featuring no ar gaps, low loss, and low noise. Meanwhile after winding, it ensures good fitting of the joint surfaces when the three single frames are assembled. in the processes of shearing.handling, and stacking silicon steel sheets for laminated cores, mechanical actions such as impact, collision, compression, and beating from fixtures and workstation tools, as well as thermal stress, increase the internal stress of the laminated core, in contrast, the wound core processing is less affected by the above factors, and the increase in internal stress is not significant.

3.Core annealing technology:
For the annealing process technology, the annealing temperature and time (heating, heat preservation,cooling) are controlled according to factors such as the grade of silicon steel sheets, the number of cores loaded into the furnace, the core diameter, and the temperature inside the furnace, ensuring that after annealing, the core process coefficient is 1.05-1.10, which can basically eliminate internal stress, with no high magnetic resistance existing in all parts of the magnetic circuit, and the no-load loss and exciting current can be significantly reduced.The annealing curve is strictly monitored during the annealing process, and adjustments are made in a timely manner in case of abnormalities.4.Wound core winding: The design of the wound core winding machine is also a key technology,including key technologies such as coil mold design, power device design, insulation part treatment during coil winding, and coil tap treatment.
Key processes:
Process flow:Use the broken line cutting machine design software for design calculation to determine the material size.Carry out straight strip cutting with a longitudinal cutting machine according to the designed straight strip size.Use the broken line cutting machine to cut the straight strip into trapezoidal materials according to the designed size.Use the core winding machine to wind the trapezoidal strip into a single frame.Fix and clamp the three frames with an annealing fixture.Anneal.
Assemble the three single frames.The key processes are as follows: Core winding.@ Each single frame is formed by continuously winding several trapezoidal strips with different widths. During winding, the special winding machine automatically disolaces the strip synchronously to one side for asymmetric winding, making the cross-section have a 30degree inclination angle, thereby ensuring good fitting of the joint surfaces when the three single frames are assembled. Clamping of the single core frame. Annealing of the single core frame must be carried out under the clamping of the fixture to prevent the shape of the single frame from changing during cutting or annealing. Annealing.The annealing of the three-dimensional triangular wound core single frame is carried out in a vacuum annealing furnace. The core annealing process and the technical operation procedures of the annealing furnace have a great impact on product quality.( Assembly; the assembly of the three-dimensional triangular wound core should be carried out on the assembly fixture. During assembly, adjust the front and rear positions of each single frame to ensure that the three joint surfaces are completely and tightly fitted and the two joint surfaces should be aligned in the up, down, left, and right directions to prevent misalignment. Then use binding straps to bind the three assembled core columns respectively, ensuring they are tightly bound, and the binding height should be slightly lower than the upper position of the window width.
coil winding, the gear coupling of the three-dimensional triangular wound core winding machine should be appropriately adjusted to the sure smooth operation during coil winding, the electromagnetic wire arrangement should be uniform, and the insulation parts and coiltaps should be treated during coil winding.
3.Project innovation and Advancement
in the power transformer industry, both laminated cores and wound cores have long suffered from the drawback of unequal three-phase magnetic circuits.Innovation of the $13-M.Rl three-dimensional triangular wound core transformer: it breaks through the framework of traditional planar structures by using three identical rectangular semi-circular cross-section wound cores to form an equilateral three-dimensional three phase transformer core. This design makes the three-phase core magnetic circuit completely symmetrical, significantly reduces magnetic resistance, and remarkably decreases exciting current and no-load loss, creating a new type of high-efficiency energy-saving triangulal wound core transformer with lower operation noise and a more compact structure.Advancement: Compared with planar laminated cores in terms of performance and material usage, the three-dimensional triangular structure offers the following advantages:Energy saving: The no-load loss of s13 is 25% lower than the national standard value of s11, and the no-load current of s13 is 80% lower than the national standard value of s11.Material saving and consumption reduction: it saves 20% of silicon steel sheet usage and 2-3% of copper usage.Ultra-low noise: The noise is 7-10 dB (A) lower than the national standard value ofs11.Specific analysis:
A.Material saving and cost reduction The average magnetic path length of the three magnetic circuits of the three-dimensional triangular wound core is significantly shorter than that of the laminated core. Meanwhile, the wound core has 4 fewer large sharp corners and 4 fewer small sharp corners than the laminated core,reducing core material loss.

Product parameters

 

brand	HaiRui	vector group	Dyn11Yyn0
product name	oil immersed transformer	material	Copper/Aluminum
model	SZ11	installation height	Altitude 0-3000
purpose	voltage transformation	warranty	24 months

 

 

 

 

 

FAQ

 

1: Does it support OEM/ODM customization?
A: Yes, we support customized services, including parameter adjustments for power, size, input/output voltage, protection level (IP level), working environment (such as explosion-proof, high temperature resistance), and provide technical solution design.
 

2: Can you provide technical document support?
A: Yes, English manuals, product certificates, test reports, wiring diagrams, and other documents are provided with the goods, and we can assist customers in completing the necessary documents for import customs clearance.
 

3: How can I contact you when encountering technical issues?
A: Provide 24-hour English technical response, which can be communicated through email, WhatsApp, Skype or online meetings. In emergency situations, engineers can be arranged to provide on-site support.
 

4: Where are you? Can I come see you?
A: Of course, you are welcome to visit our factory anytime.