Oil-Immersed Transformer

As today’s production equipment is becoming more and more sophisticated, the production and processing environment and production instruments have higher and higher requirements and standards, many times the competition of enterprises depends on the ability to produce more than one micron gap but occupy the market share, at this time the enterprise in the choice of production and processing of accessories requirements will be more fine, Oil-immersed transformer is a kind of equipment with multiple models and multi-function suitable for different environmental production, how to distinguish between different models, what are the differences in functions?

1, non-enclosed oil-immersed transformer: mainly S8, S9, S10 and other series of products, widely used in industrial and mining enterprises, agriculture and civil buildings.

2, enclosed oil-immersed transformer: mainly S9, S9-M, S10-M and other series of products, mostly used in the petroleum, chemical industry, more oil, more chemical substances.

3, sealed oil-immersed transformer: mainly BS9, S9-, S10-, S11-MR, SH, SH12-M and other series of products, can be used for power distribution in industrial and mining enterprises, agriculture, civil buildings and other places.

In addition, there are a variety of special transformers for special purposes. For example, high-voltage transformers for testing, transformers for electric furnaces, welding transformers and transformers for thyristor lines, voltage transformers and current transformers for measuring instruments.

Performance features Folding

a, oil immersed transformer low-voltage winding in addition to the small capacity of copper wire, generally use copper foil winding cylinder structure; The high voltage winding adopts the multi-layer cylinder structure, so that the ampere-turns distribution of the winding is balanced, the magnetic leakage is small, the mechanical strength is high, and the short-circuit resistance is strong.

b, the iron core and the winding are respectively using fastening measures, the device height, low pressure lead and other fastening parts are equipped with self-locking locknut, the use of non-hanging core structure, can withstand the transport of the shock.

c, coil and core using vacuum drying, transformer oil using vacuum filter oil and oil injection process, so that the moisture inside the transformer to a minimum.

D. The oil tank adopts corrugated sheet, which has respiratory function to compensate for the volume change of oil caused by temperature change, so the product has no oil storage tank, which obviously reduces the height of the transformer.

e, because the corrugated sheet replaces the oil storage tank, the transformer oil is isolated from the outside world, which effectively prevents the entry of oxygen and water and leads to the decline of insulation performance.

f, according to the above five points of performance, it ensures that the oil-immersed transformer does not need to change oil in normal operation, greatly reducing the maintenance cost of the transformer, and extending the service life of the transformer.

1) When there is a large number of primary or secondary loads, two or more transformers should be installed, and when any transformer is disconnected, the capacity of the remaining transformers can meet the power consumption of primary and secondary loads. The first and second loads should be concentrated as much as possible and should not be too scattered.

2) When the seasonal load capacity is large, special transformers should be installed. Such as large civil buildings in the air conditioning freezer load, heating load and so on.

3) When the concentrated load is large, special transformers should be installed. Such as large heating equipment, large X-ray machine, arc furnace and so on.

4) When the lighting load is large or the power and lighting use of shared transformers seriously affect the quality of lighting and lamp life, a special lighting transformer can be set up. In general, power and lighting share a transformer.

Under normal medium conditions, oil-immersed transformers or dry transformers can be selected, such as independent or attached substations of industrial and mining enterprises, agriculture, and residential independent substations. Available transformers are S8, S9, S10, SC(B)9, SC(B)10, etc.

Temperature environment folding ① At 220℃ temperature, maintain long-term stability

② It can withstand short-term operation at 350℃

③ In a wide range of temperature and humidity, maintain stable performance

④ At 250℃ temperature, will not melt, flow and combustion

⑤ At 750 ° C, it will not release toxic or corrosive gases