Auxiliary Transformers
Compact auxiliary and station service transformers providing reliable house load power for substations, power plants, and industrial facilities. Multi-winding configurations available for diverse auxiliary supply requirements.
Engineering Features
Station Service Supply
Reliable power for substation auxiliaries — lighting, cooling fans, control circuits, and battery chargers.
Technical Data
| Parameter | Range / Value |
|---|---|
| Rated Power | 50 kVA – 2 MVA |
| Primary Voltage | 6.6 – 36 kV |
| Secondary Voltage | 230/400 V – 690 V |
| Frequency | 50 / 60 Hz |
| Impedance | 4% – 6% |
| Vector Group | Dyn11, Yyn0 |
| Temperature Rise | Top oil ≤ 55K, Winding ≤ 60K |
| Noise Level | ≤ 50 dB(A) |
| Ambient Temp | -25°C to +50°C |
| Design Life | 25+ years |
Standard range parameters — custom specifications available on request.
Related glossary terms
DEWA Approved
Dubai Electricity & Water Authority vendor
ADDC / AADC
Abu Dhabi Distribution Company approved
SEWA / FEWA
Sharjah & Federal Electricity authorities
ADNOC AVL
ADNOC Approved Vendor List
IEC 60076
International standard for power transformers
ARAMCO 17-SAMSS
Saudi ARAMCO material specification
Station-service and auxiliary transformers for GCC power-plant and substation service. 50 kVA to 2 MVA at up to 36 kV per IEC 60076 — multi-winding configurations for AC station-service, control, lighting and HVAC loads. Standard supplier for DEWA, ADWEC, SEC, KAHRAMAA gas-turbine plants, ADNOC plant power and the Barakah nuclear-station auxiliary network.
DEWA Hassyan & Jebel Ali Power Stations
ADWEC Taweelah & Mirfa Power Plants
Barakah Nuclear Plant Auxiliary Network · UAE
ADNOC Plant & Field Auxiliary Power
Saudi Aramco Plant Station Service
Saudi SEC Primary-Substation Auxiliaries
Where Auxiliary Transformers Excel.
DEWA Hassyan & Jebel Ali Power Stations
IEC 60076 multi-winding auxiliary transformers for DEWA Hassyan and Jebel Ali power-station station-service.
Barakah Nuclear Plant Auxiliaries
Station-service auxiliary transformers supporting the Barakah Nuclear Plant 4×1400 MW auxiliary network in Abu Dhabi.
ADNOC Plant & Field Auxiliary Power
Auxiliary transformers for ADNOC plant and field auxiliary power — control, lighting and HVAC loads.
Saudi SEC Primary-Substation Auxiliaries
Multi-winding auxiliary transformers for Saudi SEC primary-substation station-service across the Kingdom.
Frequently Asked Questions
Related Knowledge
FAQs, glossary terms and sizing steps mapped to this product.
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