Dry Type Transformers

Dry-type distribution transformers are moisture-proof, suitable for operation in humidity or severe polluted conditions. These transformers are the ideal transformers for operation at temperatures as low as -25°C as well as in environments with more than 95% humidity. HV windings are coated with epoxy cast resin under vacuum and LV windings can be manufactured with both cast resin and resin soaked prepreg.

Category:

Ürün Bilgisi

Dry-type distribution transformers are moisture-proof, suitable for operation in humidity or severe polluted conditions. These transformers are the ideal transformers for operation at temperatures as low as -25°C as well as in environments with more than 95% humidity. HV windings are coated with epoxy cast resin under vacuum and LV windings can be manufactured with both cast resin and resin soaked prepreg.

Dry type transformers have a wide range of applications. They can be used in distribution systems, co-generation systems, rectifier and traction applications.

All transformers are manufactured in accordance with ISO 9001 and ISO 14001. At the end of the production process, transformers are individually tested in accordance with IEC Standards.

Advantages

  • Non-flammable and self-extinguishing.
  • Resistant against moisture.
  • Does not cause environmental pollution.
  • Insulation materials are environmentally friendly materials that do not contain halogen and nitrogen.
  • Requires minimal maintenance (once a year).
  • No risk of leaks as it does not contain liquid.
  • On-site maintenance and repair service.
  • Opportunity of installation very close to consumer centers.
  • Low operating and installation costs.
  • No need for special safety measures as it is self-extinguishing.
  • Better performance against oil type transformers in short-term overloads.
  • High mechanical resistance against short circuit.

Areas of Use

  • Internal and external transformer centers
  • Solar Power Plants
  • Industry and oil refineries
  • Subways
  • Oil platforms
  • Energy production facilities
  • Hospitals
  • Schools
  • Airports
  • Shopping Centers
  • Wind Power Plants

 

Tests

Fixed Tests Typical and Customized Tests
•Measurement of Winding Resistances (IEC 60076-11 Clause 14.2.1) •Full Wave Lightning Impulse Test (IEC 60076-11 Clause 14.3.1)
•Measurement of Voltage Ratio and Control of Phase Difference (IEC 60076-11 Clause 14.2.2) •Temperature Rise Test (IEC 60076-11 Clause 14.3.2)
•Measurement of Short Circuit Impedance and on load Loss (IEC 60076-11 Clause 14.2.3) •Sound Level Measurement Test (IEC 60076-11 Clause 14.4.2)
•Measurement of no load Loss and no load Current (IEC 60076-11 Clause 14.2.4)
•Applied Voltage Test (IEC 60076-11 Clause 14.2.5)
•Induced Voltage Withstand Test (IEC 60076-11 Clause 14.2.6)
•Measurement of Partial Discharge (IEC 60076-11:2006 Clause 14.2.7)

ENCLOSURE (Opsional)

With respect to customers request, transformers can be enclosed according to IEC 60529 standards.

The most commonly used enclosures are;

-IP 20/23/33

-IP 44 (for indoor or outdoor use)

The enclosure with higher IP level can be designed with special cooling methods.

 

 

 

 

 

TECHNICAL SPECIFICATIONS