> Scope of Application

800~31500/35 type oil-immersed transformer is suitable for AC 50Hz, rated working voltage 35kV power system, as a small and medium-sized substation substation substation equipment.

> Model Meaning

> Working Conditions

◇ Installation height: altitude not more than 1000m;

◇ Ambient temperature: -40°C ~+40°C

> Structural Features

◇Iron core

The iron core is suitable for high-permeability grain-oriented cold-rolled silicon steel sheets. The iron core is a core iron core, a fully miter seam stacked iron core, and its iron core column is a circular section of multi-step steps, and the yoke and iron core are equal sections.

◇Winding

The windings are all concentric coils, and the high-voltage windings have taps corresponding to the tap voltage requirements, which are led to the tap changer, and the switch is installed on the box cover, and the tap can be converted after cutting off the power supply

Voltage.

◇Safety protection device

The transformer is equipped with a gas relay;

The transformer is equipped with a pressure relief valve;

◇Oil protection device

The transformers are equipped with oil storage cabinets, and one end of them is equipped with an oil level gauge;

A moisture absorber with an oil seal should be installed on the transformer oil storage cabinet;

◇Oil temperature measurement device

The transformers are fitted with a glass thermometer header on top of the tank. Reach into the oil 120 ± 10mm;

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

◇Transformer tank and its accessories

The transformer is generally not supplied to the trolley, and the welding position of the bottom bracket should comply with the provisions of GB6451-1999;

The lower wall of the oil tank is equipped with an oil sample flap, and the lower part of the transformer tank is equipped with a sufficiently large oil drain valve;