S11-M Series Rolled Core Seased Distribution Transformer - Juche (Zhejiang) Science-Technology Co.,Ltd

2. The cores are rolled with 3-phase & 3 column inside and outside flame, it is of high mechanization degree.

3. Main Technological indicator reaches to international advanced level in similar products.

Performance characters:

1. Compared with S9 series, the no-load current is reduced by 70%, and the no-load loss is reduced by 30%.

2. Compared with JB/T10088-1999 standard, the noise is much lower.

3. Windings of high and low voltage directly winds on the core, so the winding is of high mechanical strength and high resistance to short circuit.

4. The core is winded, and the way of the magnetic path is the same with the way that silicon iron crystal lattice arrays, which make the no load performance of the transformers.

Feature of the structure

1. The core: The cores are rolled with 3-phase & 3 column inside and outside flame, core column is constructed with round interleaved grade section, After being winded, the core is re-annealed to remove any residual stresses; bended groove shape clamping piece, screw strained transformer body; Painted special glue on the surface of core, which ensure that there is no deformation and no stain on the core.

2. Windings and the body: LV windings is drum type furnace windings (≤500kVA) or spiral winding(≥630kVA) whose1

??/span>6 wires is abreast winded for four layers or two layers; wires are made from oxygen-free copper; the insulating material between high and low windings is diamond dot paper; the axial oil duct of high voltage windings and the main oil gap between high and low voltage are all of stay shade structure; yoke insulation and trapeziform packing block are integrated, which make the body be pressed evenly; body of transformer adopts new style pattern positioning structure, both portrait and transverse, which makes the body steady enough.

2. Oil tank: folding tank, sealed oil tank makes no leakage, and don’t have to maintain.