Product description

Installation points

The distribution transformer is an important component of the substation, and the 100KVA oil-immersed transformer is generally installed in a separate transformer room.

Relying on oil as the cooling medium, such as oil immersion self-cooling, oil immersion air cooling, oil immersion water cooling and forced oil circulation. Generally, the main transformer of the booster station is oil-immersed, with a conversion ratio of 20KV/500KV, or 20KV/220KV, and the factory transformer used by the general power plant to drive its own load (such as coal mill, induced draft fan, blower, circulating water pump, etc.) is also an oil-immersed transformer, and its conversion ratio is 20KV/6KV.

Oil-immersed transformers are hermetically sealed with full oil filling. The corrugated oil tank shell adapts to the expansion of the oil with its own elasticity and is a permanently sealed oil tank, and the oil-immersed transformer has been widely used in various power distribution equipment.

Cooling method

In the operation of 100KVA oil-immersed transformer, the heat of the winding and iron core is transferred to the oil first, and then to the cooling medium through the oil. The cooling methods of oil-immersed power transformers can be divided into the following types according to the size of the capacity:

1. Natural oil circulation and natural cooling (oil immersion self-cooling type)

2. Natural oil circulation air cooling (oil immersion air cooling)

3. Forced oil circulating water cooling

4. Forced oil circulating air cooling

5. Conditions of normal use

6. The altitude does not exceed 1000m, indoor or outdoor

7. The maximum ambient temperature is +40°C, and the maximum daily average temperature is +30°C

8. The highest annual average temperature is +20°C and the lowest temperature is -25°C

9. According to the user’s requirements, the transformer can be provided to operate under special use conditions