Transformers
Altınsoy Enerji transformers are designed in accordance with the latest engineering standards to ensure high efficiency and long service life. With low loss values, safe insulation structures, and modern manufacturing technologies, they provide uninterrupted and reliable power flow in electrical networks. All our products are tested in compliance with IEC standards and pass through strict quality control processes.
With 22 years of experience, our solutions are custom-designed to meet customer requirements across different power and voltage levels. Serving a wide range of applications from urban distribution networks to industrial facilities, Altınsoy Enerji transformers stand out with their energy efficiency, low maintenance costs, and strong after-sales support. Thus, we offer our customers not only products, but also long-term partnerships.
| Specification | Distribution Transformer | MV Power Transformer | Special-Type Transformer |
|---|---|---|---|
| Power Range | 25–5000 kVA | 10–25 MVA | Custom-designed |
| Voltage Level | Up to 36 kV | Up to 154 kV | Varies by project |
| Cooling Type | ONAN / ONAF / KNAF | ONAF / ODAF | According to custom design |
| Number of Phases | 1 or 3 Phase | 3 Phase | 1–3 Phase |
| Application Area | Urban networks, industry, MV distributionm | Substations, industrial facilities | Wind, solar, special projects |
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Distribution transformers are manufactured in compliance with international standards, with power ratings up to 5000 kVA and voltage levels up to 36kV. With high efficiency, low loss values, and long service life, they ensure reliable performance in power distribution networks.
Hermetically sealed, gas-cushioned, and expansion tank designs used in the production process minimize maintenance requirements while providing maximum protection against harsh environmental conditions. With ONAN, ONAF, KNAN, and KNAF cooling systems selectable according to project requirements, optimum thermal performance is achieved under different climate conditions.
| Model | Rated Power (kVA) | Primary Voltage (kV) | Secondary Voltage (V) | Cooling Type | Vector Group |
|---|---|---|---|---|---|
| DT-100 | 100 | 33 / 15,8 / 10,5 | 400 | ONAN | Dyn11 |
| DT-250 | 250 | 33 / 15,8 / 10,5 | 400 | ONAN | Dyn11 |
| DT-630 | 630 | 36 | 400 | ONAF | Dyn11 |
| DT-1000 | 1000 | 36 | 400 | ONAF | Dyn11 |
| Power (kVA) | No-Load Loss (W) | Load Loss (W) | Short-Circuit Impedance (%) | Efficiency (%) |
|---|---|---|---|---|
| 100 | 260 | 1600 | 4,0 | 98,8 |
| 250 | 480 | 3200 | 4,5 | 99,1 |
| 630 | 850 | 6200 | 5,0 | 99,3 |
International design and testing standard for power transformers.
Regulation on energy efficiency and loss limits.
Compliance with local manufacturing and quality management system certifications.
Medium Voltage Power Transformers are designed with a primary focus on high performance and reliability, with power ratings ranging from 5 MVA to 25 MVA and voltage levels up to 36 kV.
All manufacturing processes are carried out in full compliance with IEC 60076 and TS EN 50588 standards.
Transformers can be manufactured with gas-cushion, hermetic, or expansion tank designs.
Upon request, both Off-Circuit Tap Changer (OCTC) and On-Load Tap Changer (OLTC) options are available.
Thanks to the use of K-class insulating oils and high-quality magnetic core materials, low losses, long service life, and quiet operation are ensured.
| Model | Rated Power (kVA) | Primary Voltage (kV) | Secondary Voltage (V) | Cooling Type | Vector Group |
|---|---|---|---|---|---|
| OGT-5000 | 5 | 36 / 15,8 | 6,3 / 10,5 | ONAN | Dyn11 |
| OGT-10000 | 10 | 36 | 6,3 / 10,5 | ONAF | Yd11 |
| OGT-16000 | 16 | 36 | 10,5 | OFAF | Yd11 |
| Power (kVA) | No-Load Loss (W) | Load Loss (W) | Short-Circuit Impedance (%) | Efficiency (%) |
|---|---|---|---|---|
| 5 | 4,2 | 30,0 | 6,0 | 99,0 |
| 10 | 6,8 | 52,0 | 6,5 | 99,2 |
| 16 | 8,0 | 78,0 | 6,5 | 99,3 |
International design and testing standard for power transformers.
Regulation on energy efficiency and loss limits.
Compliance with local manufacturing and quality management system certifications.
Altınsoy Enerji delivers application-specific solutions with special-type transformers designed in accordance with custom project requirements.
These transformers are fully engineered and manufactured to meet customer-specific demands in terms of voltage levels, power ranges, and operating conditions.
Our product range includes autotransformers, isolation transformers, rectifier transformers, grounding transformers, impulse transformers (6, 12, and 24-pulse systems), and inverter supply transformers. In addition, dual-voltage models on the LV and MV sides provide flexible connection options.
All special-type transformer productions are carried out in compliance with IEC 60076 and TS EN 50588 standards, with the objective of high efficiency, low losses, and long service life.
Through Altınsoy Enerji’s engineering capability and local manufacturing strength, reliable solutions are delivered across a wide range of applications—from industrial facilities to renewable energy systems.
| Model | Rated Power (kVA) | Primary Voltage (kV) | Secondary Voltage (V) | Cooling Type | Vector Group |
|---|---|---|---|---|---|
| OT-500 | Autotransformer | 500 | 33 / 15,8 | 10,5 / 6,3 | ONAN |
| IT-1000 | Isolation | 1000 | 36 | 0,4 | ONAF |
| RT-1600 | Rectifier | 1600 | 15,8 | 0,8 / 1,2 | ONAF |
| Type | No-Load Loss (W) | Load Loss (W) | Insulation Class | Efficiency (%) |
|---|---|---|---|---|
| Autotransformer | 1100 | 5200 | K | 98,9 |
| Isolation | 1500 | 6200 | F | 99,0 |
| Rectifier | 2100 | 7800 | H | 99,1 |
