Product Description

S11/10KV Oil-immersed transformer

Product Features:

S11-30 ~ 3150KVA/10KV series distribution transformers have remarkable energy-saving effect. They adopt new iron core materials, fully inclined three-seam structure and even magnetic circuit distribution, which greatly reduces no-load excitation current and no-load loss. S11 products, on the basis of S9 series, reduce no-load loss by 30% on average, reduce no-load current by 70%, and reduce noise by about 8 db.Install pressure release valve, signal thermometer, gas relay, etc. according to the standard requirements to ensure the safe operation of the transformer.It has the characteristics of reliable operation, small size, light weight, low noise, good technology, good heat dissipation, low temperature rise, no core structure, no pollution, no maintenance, high efficiency.

Technical data

Structural characteristics

1, the core

The silicon steel sheet of iron core adopts high quality cold-rolled orientation 30Q120 or 30QG105 grade, full diagonal joint, step-type three-stage joint structure type, the side of iron core is coated with polyurethane adhesive, the upper and lower iron yoke is clamped with channel steel, and the upper and lower clamps are tightened with screw.

2, coil

The wire is made of oxygen-free copper, the flat wire is zb-0.45, the round wire is QQ-2, the high-voltage coil is of layer type, the low-voltage coil can be divided into ≤500kVA as layer type and ≥ 630kVA as new spiral type according to the capacity.

3. Body insulation

In the iron core window, a 25mm thick laminated cardboard coil is added to the upper end of the coil, which not only strengthens the main insulation strength, but also improves the axial dynamic stability of the coil.

Workshop

·Service conditions

1. The maximum ambient air temperature shall not exceed 40 ℃, and the minimum shall not below - 25 ℃;

2. The altitude shall not exceed 1000m. If special customized transformers and low-voltage components are used, the altitude can reach 4000m;

3. The vertical inclination is no more than 5 °, and no violent vibration and impact;

4. The air humidity is not more than 90% (+ 25 ℃);

5. No gas and conductive dust that will seriously affect the insulation of transformer, no explosion hazard and corrosion of electrical components;

6. Outdoor wind speed shall not exceed 35m / s.

7. If service conditions beyond the above, specially customized product is available.

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