S11/35KV Oil-immersed transformer

Product Features:

On the basis of S9 series, the no-load loss of S11 series products is reduced by 30% on average, and the no-load current is 70-80% lower than that of S9. The core is made of imported high magnetic conductivity, low loss, cold-rolled high-quality silicon steel sheet, which reduces the no-load loss and saves energy significantly.

High safety and reliability, advanced structure, small volume, light weight, low noise, low temperature rise, anti-corrosion, reliable anti leakage measures, to prevent oil leakage.

Technical data

Characteristic:

1. All of them are made of high quality grain oriented cold-rolled silicon steel sheets. The iron core is of multi-stage stepped structure, with three or five joints, low air loss and low noise; The coil core is directly wound by special equipment, without joint and angle weight, reducing magnetic resistance and low air loss; The amorphous alloy transformer core is a kind of higher quality core material. Compared with the traditional silicon steel sheet, the average air loss is reduced by 72%, and the no-load current is 50%.

2. Coil

It is made of high-quality QQ acetal enamelled round copper wire and flat copper coin drawn by oxygen-free copper rod. Coil forms include cylinder type, continuous type, new spiral type, split type, etc with sufficient electrical strength, mechanical strength and heat dissipation capacity. In order to increase the short-circuit resistance of transformer, higher quality self-adhesive transposed conductor can be used. The coil is made of self-adhesive acetal enamelled flat wire. After being wound into a coil, the enamelled flat wires are mutually bonded to form a rigid coil, which can withstand greater bending stress, thus enhancing the short-circuit resistance of the transformer. The biggest characteristic of the self-adhesive transposed conductor is that it can reduce the loss of the transformer. The multi-split conductor and transposition can greatly reduce the eddy current loss and circulation loss, reducing the temperature rise of the hot spot of the winding, and make the temperature distribution of the whole winding more evenly.

3. Oil tank

It is welded by high-quality steel plates elliptical or rectangular structures. The radiator elements are chip type radiator, expansion radiator or corrugated oil tank. The oil tank sealing is tested reliably in the factory. It is sprayed with three times of primer and one time of finish paint inside and outside. The product is salt fog proof, damp heat proof and fungus proof, which can meet the special requirements of metallurgy, petrochemical system and wet and polluted areas. It is beautiful in appearance and reliable in operation.

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.

Order notice

1 clients need advise main parameters of the transformer like capacity, input voltage, output voltage and connection group in inquiry.

2 other custom requirement.

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