DRY TYPE TRANSFORMERS | Astor A.Ş.

DISTRIBUTION TRANSFORMERS

DRY TYPE TRANSFORMERS

It differs from oil type transformers according to cooling method. HV windings of transformer coated with epoxy cast resin under vacuum. LV windings of transformer can be produced by both cast resin and resin impregnated prepreg method.

They are produced in natural air cooled (AN) or fan cooled (AF) options in the 25-25000 kVA power range, up to 36 kV voltage level. It can provide up to 40% power increase by using cooling fan.

Dry type transformer manufacturing, requires advanced technology and knowledge, increases its market share compared to oil type transformers with the increasing customer demands in recent years. In today's technology, however, the production of large power dry type transformers, especially above 36 kV voltage level, involves technological challenges. Research and development studies on this subject are continuing at full speed. No environmentally harmful coolant such as oil, less risk of fire, maintenance-free, resistant to moisture, can be commissioned at any time despite the fact that it is not in operation for a long time and can be loaded more than 40% of nominal power with fan cooling supplement oily type distribution transformers. However, the most important negative aspect of today is the higher sales price compared to an oil-type transformer of the same power, dry-type distribution transformers have been increasing the share of sales in recent years.

Products Complying with MLZ 099.31.B Specification

Products with a voltage value of 33kV

Products with voltage rating of 15.8kV

Products with a voltage value of 10.5kV

6.3kV Voltage rated products

Products Complying with IEC Standards

Products with a voltage value of 33kV

Products with a voltage value of 22kV

Products with voltage values ​​of 15kV

Products with a voltage value of 11kV

6.3kV Voltage rated products

Products Conforming to EN 50588-1 Standards (EU548_2014)

Products with voltage values ​​of 20kV

Products with a voltage value of 10kV

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