When you need reliable, energy-efficient power distribution, the SCB18 High Efficiency Dry-type Transformer from Xuzhou Tuojie International Trade Co., Ltd. delivers exceptional performance. Our transformers achieve efficiency levels exceeding 98.5% at rated load while reducing no-load losses by 30-40% compared to older models. Backed by 18 patents and manufactured using over 120 sets of advanced equipment, our SCB18 series features epoxy resin encapsulated windings with 50% lower partial discharge levels and 30+ years maintenance-free operation. With capacity options from 30KVA to 2500KVA and insulation class H rated to 180°C, you get enterprise-grade reliability meeting IEC 60076 and GB standards.
You're looking at the latest generation of cast resin power transformers. This isn't just another electrical component.
The SCB18 transformer solves real problems you face daily. Excessive energy consumption? We've reduced total losses by up to 40%. Fire hazards from oil-filled units? Our solid insulation system eliminates those risks completely. Environmental concerns? Zero oil means zero contamination potential.
Here's what sets our transformer apart:
You can install these transformers directly at your load center. No separate fire-rated room required. No pre-drying procedures after shutdown. Just reliable, continuous operation.

Our dry-type transformers come with comprehensive specifications tailored to your project requirements:
| Parameter | Specification |
|---|---|
| Product Model | SCB11, SCB12, SCB13, SCB14, SCB18 |
| Type | Dry-type |
| Phase | Three Phase |
| Frequency | 50Hz / 60Hz |
| Cooling Method | AN / AF |
| Rated Capacity | 30KVA – 31500KVA |
| Primary Voltage | 10 / 20 / 35kV |
| Secondary Voltage | 0.22 – 1.14kV |
| Vector Group | Dyn11 / Yyn0 / Yd11 |
| Insulation Class | F / H (optional) |
| Winding Material | Copper / Aluminum |
| Core Material | Grain-oriented Silicon Steel |
| Design Standard | IEC60076 / ANSI / IEEE / GB / CSA |
| Certifications | ISO9001 |
| Altitude | ≤4000m |
| Ambient Temperature | -40°C ~ +40°C |
| Humidity | ≤95% |
Your transformer operates normally even at 100% humidity. When you need to restart after shutdown, there's no waiting for pre-drying procedures. This means minimal downtime and maximum productivity.
Non-flammable and fire-resistant construction gives you peace of mind. You can install these units directly at your load center without worrying about fire hazards or environmental pollution. Your facility stays safer.
Low losses translate to lower operating costs for you. Minimal partial discharge ensures longevity. Low noise levels keep your environment comfortable. The superior heat dissipation allows operation at 150% rated load under forced-air cooling when you need that extra capacity.
Easy installation means faster commissioning. No routine maintenance requirements reduce your overall operating costs significantly. You spend less time on upkeep and more time on your core business.

SCB18 High Efficiency Dry-type transformer we bring over 20 years of industry experience to every project. Our technical team includes 15 senior engineers, over 30 intermediate technicians, and 17 senior technicians who understand your challenges.
Our manufacturing capabilities include:
We follow ISO9001 quality management standards throughout every stage. From raw material procurement to final installation, each step receives rigorous monitoring. The concept of "zero defects" guides our entire production process.

We've provided answers in a wide range of fields, including:
Municipal Engineering: Our transformers power important buildings like high-speed train stops and control centres for public transit. Dual-circuit power source designs make sure that your processes are completely safe.
Commercial Real Estate: Our solutions meet the strict needs of businesses while keeping the highest quality standards. This includes shopping malls and leisure centres.
Industrial Applications: We've upgraded the power supplies for large factories, solar industrial parks, and high-tech industrial zones. It is always possible to finish projects early without lowering the standard.
The versatility of our high efficiency dry-type transformers serves multiple sectors:

You'll see 1.5-2.5% higher efficiency than SCB11 models. That translates to 30-40% reduction in total losses. For a 1000kVA unit, annual energy savings typically range from 15,000-50,000 kWh. These aren't theoretical numbers—they're validated through IEEE 529 efficiency testing protocols.
Our advanced winding design handles harmonic distortion up to 15% THD without derating. K-factor ratings of 4-13 accommodate your non-linear loads while maintaining thermal stability. We've verified this through IEEE 519 harmonic analysis testing.
You only need annual visual inspection, infrared thermography, and electrical testing every 5 years. No oil analysis. No gasket replacement. This reduces your lifecycle maintenance costs by 60-80% compared to oil-filled units, following IEC 60422 maintenance guidelines.
Absolutely. The epoxy resin encapsulation provides superior chemical resistance to acids, alkalis, and industrial solvents. IP54 protection and corrosion-resistant hardware enable safe operation in coastal areas, chemical plants, and wastewater treatment facilities. We've validated this through IEC 60068-2-52 salt spray testing.
Our standard warranty covers 2-5 years with extended options to 10 years available. Design life exceeds 30 years based on IEEE C57.100 thermal aging models and accelerated life testing. Failure rates typically remain below 0.1% annually after initial commissioning.
Production timeframes depend on your specific requirements and order volume. Our advanced manufacturing equipment and optimized processes enable efficient production. We'll provide you with a detailed timeline during the quotation process.
We use full quality control throughout the whole production process:
As per IEC 60076-1, efficiency testing confirms both no-load and load losses by measuring with great accuracy. You are sure to do well.
IEC 60270-based Partial Discharge Testing finds problems with shielding before it is shipped. The limit for acceptance is less than 10pC at 1.5 times the maximum voltage.
Embedded sensors and thermal imaging are used in Temperature Rise Testing to prove thermal performance under your rated load conditions.
Impulse Voltage Testing according to IEC 60076-3 makes sure that the insulation works well to protect against lightning and switching spikes.
Every unit goes through regular tests that check the turns ratio, measure the inductance, and test the insulation resistance to more than 1000M©.

Ready to upgrade your SCB18 High Efficiency Dry-type Transformer power distribution system? Contact our team at tuojie@electricinchina.com for customized solutions that meet your specific requirements.







