Our Cast Resin Transformer works well and has been reliable for a long time. These dry-type transformers were made by a group of 15 top engineers and are protected by 18 patents. They use epoxy resin encapsulation technology that doesn't allow for fires and makes upkeep easier. Your building will always get power because the generators can handle sizes from 30KVA to 31,500KVA and have efficiency scores of up to 99.5%. Before leaving our plant with over 120 advanced manufacturing systems, every unit goes through a thorough quality check that follows ISO9001 standards. This makes sure that there are no defects.

Power sharing is really hard for you. You can't sleep because of worries about fire safety, following the rules for the environment, and the cost of repairs.
These issues are fixed by our transformers.
The epoxy glue covering gives better protection without using oil. You completely get rid of the risk of contamination. If there is no oil, there are no leaks, tests, or problems with getting rid of it.
The cost of your building insurance goes down. Installation options get better. Units can be put right at load centres, even in basements or on the ground floor.
The tightest safety rules are met by building that is not flammable. The qualities that cause them to go out on their own protect your people and property. In small areas where regular transformers could be dangerous, this gives you peace of mind.
With an operating range of -40°C to +40°C, it can handle harsh conditions. Performance stays the same even when humidity levels reach 95%. The sealed structure keeps out dust, poisons, and water.
When costs are low, energy bills go down. When the partial discharge is less than 10 pC, the device will work reliably. Better heat absorption lets it handle 150% of its rated load when cooled by fresh air.
Zero Maintenance Required
No oil changes. No regular testing. No pre-drying after shutdown. Your operational costs drop significantly. Installation is straightforward, saving time and money.
| 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 – 31,500KVA |
| 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% |
Intelligent Temperature Monitoring
Each unit has a BWDK thermometer device that checks each step separately. Your equipment is safe because it has an overheat alarm and an automatic trip function. Built-in temperature safety makes sure that the process is safe at all times.
The designs are in line with ANSI, IEEE, GB, and CSA norms. You can count on success anywhere in the world. We have ISO 9001, ISO 14001, and OHSAS 45001 certificates.
Customization Options
Depending on your needs, different power setups will work. Based on your price and performance needs, pick copper or aluminium windings. The insulation class F or H changes based on the area you work in.

Industrial Manufacturing
Corrosion protection and sealed structure are good for chemical plants. Water and other harmful substances don't get to your sensitive equipment. Continuous running with maintenance-free dependability is achieved in manufacturing facilities.
Data centres need power that is always on and rarely goes out. That's exactly what our transformers do. The small size saves important floor room and makes the design strong.
Commercial Buildings
Shopping malls and office buildings need to be safe and quiet places to work. There is no risk of fire when installing things in small areas. Silent operation keeps places comfortable for people who live or work there.
Hospitals and other health care centres can't handle power outages. Life-safety systems depend on our proven dependability. When lives are at stake, the Cast Resin Transformer always does its job.
Infrastructure Projects
Underground settings can be hard for railway systems to work in. Changes in temperature and high humidity don't affect efficiency. Your subway stops get stable power distribution with not much work on your part.
Critical systems must be completely reliable for airports. These strict standards can be met by our transformers. Maintenance-free operation keeps busy places running smoothly.
We've delivered solutions for hundreds of major projects. The Xuzhou Rail Transit Network Control Center relies on our dual-circuit designs for absolute safety. XCMG Group factory upgrades were completed ahead of schedule with outstanding quality.
Commercial projects like Huaihai Xintiandi trust our technology for consistent performance. The Tianyu Yayuan project achieved top quality assessment results using our equipment.
Our industrial installations at GCL Photovoltaic Industrial Park and Huaihai Biomedical Industrial Park demonstrate reliability under demanding conditions.
You deserve quality backed by capability. Our 120+ advanced machines include CNC automatic winding systems and microcomputer-controlled gradient curing furnaces. Each production stage follows strict quality protocols.
From raw material inspection through final testing, we monitor every detail. The "zero defects" philosophy guides our team of over 30 intermediate technicians and 17 senior technicians.
Rigorous testing ensures your product arrives ready for reliable service. We prevent unqualified products from leaving the factory through comprehensive inspection procedures.

Q: How long do these transformers last?
With proper installation, you can expect 30+ years of reliable operation. The epoxy resin encapsulation doesn't degrade like oil insulation. No consumables need replacement over the unit's lifetime.
Q: Can I install these transformers indoors?
Absolutely. That's one of their biggest advantages. Non-flammable construction allows safe installation in basements, ground floors, or load centers. You eliminate special fire suppression requirements.
Q: What happens if the transformer gets wet?
Performance continues normally even at 100% humidity. After shutdown in wet conditions, you can restart immediately. No pre-drying process is necessary. The sealed construction prevents moisture penetration.
Q: Do you offer custom voltage configurations?
Yes. We provide tailored solutions for your specific requirements. Different primary and secondary voltages accommodate various applications and regional standards. Our engineering team works with you to specify the right configuration.
Q: How does efficiency compare to oil-filled transformers?
Modern dry-type designs achieve 98-99.5% efficiency, comparable to oil units. Lower maintenance costs often result in better total cost of ownership. Energy savings accumulate significantly over the transformer's lifetime.
Q: What warranty coverage do you provide?
Standard warranty terms cover manufacturing defects and performance guarantees. Extended coverage options are available. Our customer service team provides technical support throughout the product lifecycle.
Technology drives everything we do. Our 18 patents demonstrate continuous innovation in transformer design. Investment in research and development keeps our solutions at industry forefront.
Service comes second to nothing. We assist with product selection, procurement, installation guidance, and ongoing support. Your success matters to us.
Integrity forms our foundation. We deliver what we promise, on time and to specification. Over 20 years in business proves our commitment to customer satisfaction.

Contact our technical team to discuss your specific requirements. We'll help you select the right Cast Resin Transformer for your application. Email us at tuojie@electricinchina.com today.







