Scope of application

The 800-31500/35 oil-immersed transformer is applicable to the power system with AC 50Hz and rated working voltage of 35kV, and is used as the transformation equipment of small and medium-sized substations.

Working conditions

◇ Installation height: the altitude shall not exceed 1000m;

◇ Ambient temperature: - 40 ℃~+40 ℃

structure characteristics

The iron core is suitable for cold rolled silicon steel sheet with high magnetic conductivity grain orientation. The iron core is a core type iron core with full inclined seam overlapping iron core. Its iron core column is a circular section of multistage steps, and the iron core and iron core are equal sections.

◇ Winding

The windings are concentric coils, and the high-voltage winding has a tap corresponding to the tap voltage requirements, which is led to the tap switch. The switch is installed on the box cover, and the tap voltage can be changed after the power supply is cut off.

◆ Safety protection device

The transformer is equipped with gas relay; The transformer is equipped with a pressure relief valve;

◆ Oil protection device

All transformers are equipped with oil conservator, and one end of which is equipped with oil level gauge; A moisture absorber with oil seal shall be installed on the transformer oil conservator;

◆ Oil temperature measuring device

The transformers are equipped with tube holders for glass thermometers, which are located on the top of the oil tank. 120 ± 10mm into the oil;

1000kVA and above transformers are equipped with outdoor signal thermometers;

◆ Transformer oil tank and its accessories

Generally, the transformer is not supplied to the trolley, and the welding position of the box bottom bracket shall comply with the provisions of GB6451-1999;

The lower wall of the oil tank is equipped with an oil sample valve, and the lower part of the transformer oil tank is equipped with an oil drain valve of sufficient size;

Ordering instructions

◇ When ordering, the product model, rated capacity, high and low voltage rated voltage, high voltage tapping range, phase number, frequency, and connection group number shall be provided.

◇ The product size data has been adjusted, and the actual product size is subject to the data reported by our company!