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Dry Type Transformers

Posted on 6th Jun 2013 @ 11:41 AM


SA Power Networks Material Sales offer a wide range of high quality dry type distribution transformers. We can offer transformer solutions for a wide range of applications including mine sites, ports, buildings, commercial infrastructure, hospitals and much more.

Manufactured out of Arezzo, Italy Tesar transformers abide by IEC standards and are tested accordingly.  Tesar has been designing and manufacturing Cast Resin Transformers for more than 30 years.  By placing importance on research and innovative technology, they have become one of the leading dry type transformer manufacturers in the world.

Indoor application with full assembled mild steel enclosures, Tesar transformers can also be utilized in an outdoor setting in our IP45, heat rise tested and IP tested enclosure.

Tesar are specialists when it comes to dry type transformers.  Their knowledge, high quality products and excellent customer support is one of the many reasons they have won the period contract to supply Indoor Dry Type transformers to Energex for 5 to 7 years. Energex is a large supply authority in the south east Queensland region and is an excellent point of reference when considering the quality of their products.

Technical Characteristics   






They supply transformers of the following technical characteristics as standard:


- Rated Power: 100kVA – 3150kVA (higher on request)

- HV Voltage: 11kV, 22kV & 33kV (other on request)

- LV Voltage: 433V (other on request)

- Tap Changer: 7 Step Tap Changer (+4 to -2) in 2.5% steps

- Vector Group: DYN11 (DYN1 on request)

- Environmental Class: E2

- Climatic Class: C2

- Fire Class: F1

- HV/LV winding insulation: F/F

- Max. Ambient Temp: 40degC (45 or 50 on request)

- Ingress Protection Rating: IP21 (higher on request)

- Windings Al/Al (Cu on request)

- Efficiency HEPS Compliant

- Accessories included: Temperature Monitor (Modbus RS485 coms on request)

Thermo-resistance Probes

Bi-Directional Wheels

HV and LV Top or Bottom Entry Cable Boxes


Standard lifting lugs
















1 Station Place, Hindmarsh,South Australia, 5007
GPO Box 77, Adelaide, South Australia, 5001
Enerven Central Warehouse, Gate 2 500 Grand Junction Road, Angle Park SA 5010

Enerven Energy Infrastructure Pty Ltd (ABN 31 621 124 909 - ACN 621 124 909)