Power transformer is an extremely wide range of applications of electric power infrastructure products. Over the past decades, our country and the world are long-term extension of the broadcast piece type power transformer, its performance has not been fundamentally improved. The company developed s22-m-rl, s20-m-rl series of three-dimensional triangle core power transformer is following the inserted piece type, rolled iron core power transformer after another generation of revolutionary transformer. It is a new type of energy-saving transformer with more reasonable structure, better performance and more significant energy saving. With the construction and transformation of urban and rural power grids and various power projects have been launched, how to improve the technical content of the power transformer, better implementation of national energy saving and environmental protection policies, and actively promote energy saving, low consumption, environmental protection applicable to the new product has become an important issue in front of us. The three-dimensional triangle coupon core power transformer developed by the company is a kind of using traditional materials, but the operation noise is lower, reduce loss and save material is more outstanding, fully in line with the international and domestic low carbon economy and energy saving and emission reduction policy and policy. The product has been included in the national energy-efficient power plant selection of the batch of energy-saving products; national resource conservation and environmental protection central budget investment projects; the State Economic and Trade Commission, the former Guodian Corporation has issued a document to promote this energy-saving products: Shen Changshi will also be triangular iron core transformer job inserts, the plane of the rolled-iron core power transformer to promote the new generation of products.
The “Core” of Difference
Triangle iron core without cutting, and no punching, eliminating the traditional transformer's horizontal and longitudinal seams, reducing the magnetic resistance: the core column cross-section is round, the core filling factor ******, triangular three-dimensional structure so that its three-phase magnetic circuits are equal and the shortest, realizing the ideal transformer core structure that people dream of. Triangle three-dimensional coupon iron core is from narrow to wide, and then from wide to narrow continuous steel strip, the first winding three cross-section of the semicircular inner iron core, and then three inner iron core three-dimensional assembly together, constituting three core column cross-section approximate circular triangle three-dimensional rolled iron core. Three-phase magnetic circuit is completely symmetrical and equal, shorten the iron choke, core column filling factor is high, its structure is recognized as the ideal power transformer structure, which is flat and rolled iron core can not be compared to the test table and triangular three-dimensional coupon core power transformer test data is better than the flat coupon core power transformer, triangular three-dimensional coupon core is a major breakthrough in the structure of the core of the power transformer and a quantum leap! Its birth is known as “power transformer core of a revolution”. Therefore, the triangular three-dimensional iron core power transformer is recognized as energy saving, environmental protection, ultra-quiet green power transformer.
Cubic rolled iron core performance advantages
Three-dimensional rolled iron core transformer breaks through the traditional plane structure, the use of three-dimensional triangular structure, the arrangement of the iron core for a more reasonable combination of three identical single frame collocation. Realize three-phase magnetic circuit completely symmetrical isometric, ensure three-phase power supply balance, and make touch resistance greatly reduced, excitation touch current, no-load loss significantly reduced. The mechanical strength is higher and the structure is more stable.
The performance advantages are as follows
1, no-load current, no-load loss is greatly reduced.
2, three-phase magnetic circuit balance, no third harmonic generation, the output waveform presents sinusoidal waveform, to ensure the quality of the power supply waveforms.
3, low noise: iron core by a trapezoidal material with changing width in the special core winding machine uninterrupted, precision continuous winding and become, no seams, can solve the stacked iron core due to the incoherence of the magnetic circuit and the noise.
4, has good heat dissipation performance: due to the small no-load current, low no-load loss, so the core heat is low, and the use of D-type semicircular iron chokes and cake winding continuous high-voltage winding, composed of the upper and lower ventilation and internal and external heat dissipation of high-efficiency self-circulating heat dissipation structure.
5, miniaturization: space utilization factor is high, the transformer adopts triangular structure, so the volume is smaller than conventional transformers, compact structure, beautiful appearance, small footprint.
6, three-dimensional rolled iron core transformer core and coil is a whole, the core knocked out, coil can not be taken out, anti-theft performance is good.
