Three Dimensional Volume Core
Power transformer is widely used as the basic power product. In the past decades, China and all over the world have been using plug - in power transformer for a long time, whose features are not improved fundamentality. The S13-M-RL、S11-M-RL series solid triangle iron core power transformers developed by our company are another revolutionary transformer after plug-in and winding iron core transformers. It is a kind of transformer that has more reasonable structure, better performance and more energy saving.
With the construction and transformation of urban and rural power grids and launching of various power projects, how to improve the technical content of power transformers, better implement the national policies on energy conservation and environmental protection, and actively promote new products of energy conservation, low consumption and environmental protection has become an important issue for us. The solid triangle iron core power transformer developed by our company is a kind of transformer that uses traditional materials but with low operation noise, low loss and excellent material saving features. Fully in line with international and domestic low-carbon economy and energy conservation and emission reduction guidelines and policies. The product has been incorporated into the first batch of energy-saving products selected by national energy efficiency power plant; Budget investment projects on resource conservation and environmental protection of the Party Central Committee; The state economic and trade commission and the former state grid corporation of China have published articles promoting this energy-saving product; Shenyang Substation also promotes the triangle iron core transformer as replacement products of plug and flat winding core power transformer.
Triangle iron core does not need to be cut or punched, eliminates the transverse and longitudinal joints of traditional transformers, reducing magnetic resistance; cross section of iron core is round, thus the filling coefficient of the iron core is biggest, triangle solid structure makes its three-phase magnetic circuit equal and shortest, realizes the iron core structure of ideal transformer for people.
Triangle iron core is made of continuous steel belts from narrow to wide and then wide to narrow. Wind the three inner cores whose cross section are semicircle, and then piece the three inner cores solidly, form the three iron cores whose cross section to be nearly circular. The three-phase magnetic loop is perfectly symmetrical and equal, reduce the iron yoke, high core filling coefficient, its structure is an ideal transformer structure that is widely recognized. It is incomparable by flat winding core. Each testing data of triangle solid winding core power transformer is better than flat winding core power transformer. Triangle solid winding core is a great breakthrough and leap in iron core of power transformer. Its birth was hailed as "a revolution in the iron core of power transformers". Thus, triangle solid winding core power transformer is recognized energy saving, environmental protection, ultra-quiet green power transformer.
Solid winding iron core transformer breaks the traditional planar structure, adopts solid triangle structure, making more reasonable combination of the iron cores by piecing three completely same single frames. The three phase magnetic circuits are perfect symmetry and same in length, ensure three phase power supply balance, decrease the magnetic resistance greatly, and reduce field current, no-load loss significantly. Thus the mechanical strength is higher, structure is more stable.
1.Reduce no-load current and loss greatly.
2.Three phase magnetic circuit is balanced, no third harmonic, output waveform is sinusoidal, and ensure the quality of power supply waveform.
3.Low noise: iron core is winded constantly and precisely on special winding machine by several trapezoid strips whose width change constantly. No seam, can solve noise of laminated core caused by magnetic circuit incoherence.
4.Has good heat dispersion: because of small no-load current, low no-load loss, calorific value of iron core is low. Adopt D type semicircle iron yoke and pie - wound continuous high - voltage winding, formed highly efficient self-circulation heat dissipation structure with vertical ventilation and internal & external heat dissipation.
5.Small size: high space utilization coefficient, transformer adopts triangle structure, thus the volume is smaller than ordinary transformer, compact in structure, beautiful in out looking, covering a small area.
6.Iron core and coil of solid winding iron core transformer are a whole, iron core will not come loose, and the coil cannot be taken out, has good anti-theft performance.
Three dimensional tranformer production standard
S13(S20~S22)SERIES OF WOUND CORE LOSS METER
Note 1: For transformers with rated capacity of 500kVA and below, the load loss value above the diagonal line in the table is applicable to Dynll or Yznll connection group, and the load below the diagonal line is applicable to Yyn0 connection group.
Note 2: Transformer with high-voltage tapping range of ± 2 x 2.5% can be provided according to user needs.
Note 3: According to the user's needs, the transformer with low voltage of 0.69kV can be provided.
Note 4: Other loss values can also be selected according to user needs.
S11 SERIES OF WOUND CORE LOSS METER
Note: The load loss above the diagonal line in the table is applicable to Dynll or Yznll connection group, and the load below the diagonal line is applicable to Yyn0 connection group.
