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Besides the shape, what are the oil transformer or the dry transformer?
PUBLISHER:Shanghai Moye Electric Co.,Ltd””RELEASE TIME:2017/7/13
Winding type transformer oil is immersed in transformer oil, insulating medium is oil cooling with self cooling, air cooling and forced oil circulation cooling, the utility model has the advantages of good cooling effect, can meet the large capacity gas relay can promptly reflect the winding fault, ensure the stable operation of the system, the shortcomings are to regularly inspect the attention level changes, lack of oil is a very dangerous thing, the role of transformer oil cooling and insulation.
The insulation medium of dry change transformer is resin or paper and insulating paint. The cooling mode has self cooling and air cooling. The advantage is free maintenance, and the disadvantage is the capacity is limited.
In addition to the same work principle, the biggest difference is that there is no oil inside the transformer, and there are many differences:
1, from the outward appearance, the packaging form is different, dry-type transformer can directly see the iron core and coil, and oil type transformer can only see the transformer shell;
2, the lead wire form is different, dry type transformer mostly use silicon rubber bushing, and oil transformer mostly use porcelain bushing;
3, capacity and voltage, dry-type transformer is generally applicable to the distribution capacity, generally below 2000KVA, the voltage below 35KV, there are also individual do 110KV voltage level; and transformer oil can all be from small to large capacity, voltage grade did all voltage.
4, insulation and heat dissipation is not the same, generally with the resin insulation dry-type transformer, by natural cooling, large capacity on the cooling fan, and transformer oil by insulating oil, insulating oil inside the transformer by circulating radiator coil due to tropical transformer (film) on heat dissipation.
5, from the application that the dry-type transformer is mostly applied in the need to "fire and explosion" place, easy using large buildings, high-rise buildings; and transformer oil due to the "accident" may have oil spray or leak caused by fire, mostly used in outdoor venues, and dig "accident oil pool place.
6, the load capacity is different, the general dry type transformer should be rated capacity under operation, while the oil transformer overload capacity is better.
7, the cost is different, for the same capacity transformer, dry-type transformer procurement price than oil type transformer price is much higher.
The insulation medium of dry change transformer is resin or paper and insulating paint. The cooling mode has self cooling and air cooling. The advantage is free maintenance, and the disadvantage is the capacity is limited.
In addition to the same work principle, the biggest difference is that there is no oil inside the transformer, and there are many differences:
1, from the outward appearance, the packaging form is different, dry-type transformer can directly see the iron core and coil, and oil type transformer can only see the transformer shell;
2, the lead wire form is different, dry type transformer mostly use silicon rubber bushing, and oil transformer mostly use porcelain bushing;
3, capacity and voltage, dry-type transformer is generally applicable to the distribution capacity, generally below 2000KVA, the voltage below 35KV, there are also individual do 110KV voltage level; and transformer oil can all be from small to large capacity, voltage grade did all voltage.
4, insulation and heat dissipation is not the same, generally with the resin insulation dry-type transformer, by natural cooling, large capacity on the cooling fan, and transformer oil by insulating oil, insulating oil inside the transformer by circulating radiator coil due to tropical transformer (film) on heat dissipation.
5, from the application that the dry-type transformer is mostly applied in the need to "fire and explosion" place, easy using large buildings, high-rise buildings; and transformer oil due to the "accident" may have oil spray or leak caused by fire, mostly used in outdoor venues, and dig "accident oil pool place.
6, the load capacity is different, the general dry type transformer should be rated capacity under operation, while the oil transformer overload capacity is better.
7, the cost is different, for the same capacity transformer, dry-type transformer procurement price than oil type transformer price is much higher.