Cast Resin Dry-type Transformer 35kV and below

1.Dry-type transformer: core and windings are air-cooled, using solid insulation like epoxy, varnish, or Nomex paper.
2.Temperature control: BWDK signal thermometer measures upper low-voltage coil, displays each phase, with overheat alarm and trip.
3.Complete temperature protection system ensures safe operation.
4.High reliability meets international standards.
5.Certifications: CE, CSIT, Southern & State Grid prequal, CNNC supplier, digital green low-carbon.
Product Description
Details

Cast Resin Dry-type Transformer 35kV and Below

Reliable Power Distribution Solutions for Modern Infrastructure

When your facility demands dependable power distribution, our Cast Resin Dry-type Transformer 35kV and below delivers enterprise-grade performance you can trust. These transformers have advanced epoxy resin coating technology and are backed by 18 patents. They were designed by a group of 15 top engineers. You can choose from capacities between 30KVA and 31,500KVA and voltages between 10/20 and 35kV main. These are precision-engineered products. Our modern factory has more than 120 sets of high-tech tools, such as CNC vacuum casting machines and microcomputer-controlled gradient curing ovens, that make sure the quality of every unit is the same.

Why Choose Our Cast Resin Transformers?

Superior Safety Features

The safety of your building is a must. Because our transformers don't catch fire and put out themselves, you can place them straight at load centres without worrying about fire safety. The strong epoxy resin insulator gets rid of all the risks that come with oil.

Pollution-free functioning will help you. There are no oil leaks, no pollution of the environment, and simple cleanup steps in case repair is needed.

The modern BWDK signal thermometer checks the temperature of your transformer's upper low-voltage coil all the time, across all three phases. Automatic heating alarms and trip protection will keep your expensive equipment from breaking down before it does.

Dry type transformer

Exceptional Performance in Challenging Environments

Getting wet won't slow you down. Even when there is 100% humidity, these Cast Resin Dry-type Transformer 35kV and below units work properly. Unlike oil-filled options, you can start them up right away after turning them off—no need to wait for them to dry first.

Your transformer can adjust to work in very cold places or very hot places in the tropics. Our units work successfully at temperatures ranging from -40°C to +40°C and at heights of up to 4,000 meters.

Need more space during times of high demand? When cooling with forced air, you can safely run at 150% of your rated load. This gives you options when you need them most.

Built for Efficiency and Longevity

When you have low loses, your bottom line goes up. Our SCB11–SCB18 series models have silicon steel cores that are oriented along the grain and improved winding designs that waste as little energy as possible.

Noise pollution won't be an issue. Advanced manufacturing techniques keep operational sound levels low, making these transformers ideal for commercial buildings, hospitals, and residential areas.

Partial discharge levels stay minimal throughout the transformer's service life, contributing to extended equipment longevity and reduced maintenance requirements.

Technical Specifications

Parameter Specification
Product Model SCB11, SCB12, SCB13, SCB14, SCB18
Type Dry-type
Phase Three Phase
Frequency 50Hz / 60Hz
Cooling Method AN (Air Natural) / AF (Air Forced)
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
Operating Altitude ≤4000m
Ambient Temperature -40°C ~ +40°C
Humidity ≤95%

Customization That Matches Your Project

It's different for each placement. You will get options that are completely customized to fit your needs:

Choosing the right main voltage (10kV, 20kV, or 35kV) and secondary voltages (0.22kV to 1.14kV) for your grid system is important.

We can meet all of your power needs, from small 30KVA units for small businesses to large 31,500KVA transformers for industrial buildings.

Connectivity Groups: Pick one of the Dyn11, Yyn0, or Yd11 vector groups based on the needs of your system design.

Rating for protection: installation inside or outside? We will change the levels of IP protection to fit your surroundings.

Values of resistance: You can change the short-circuit resistance to meet your needs for network security coordination.

PRODUCTION EQUIPMENT

Proven Quality Management

You deserve manufacturing excellence at every stage. Our comprehensive quality control follows ISO9001 standards and implements "zero defects" philosophy throughout:

  • Raw material verification before production begins
  • Real-time process monitoring during manufacturing
  • Rigorous finished product testing before warehousing
  • Final inspection prior to delivery

Each transformer undergoes strict testing in our professional quality inspection laboratory. No unit leaves our facility unless it meets all specified parameters and safety standards.

Certificate

Applications Across Industries

Municipal Infrastructure

Control centres for public transit, high-speed train stops, and public hospitals all need power that doesn't go out. Our designs are dual-circuit suitable, which means they are completely reliable for important city uses.

Commercial Buildings

Our small, low-noise transformers can be installed directly in busy areas of shopping malls, entertainment places, and high-rise office buildings, which is safe.

Industrial Facilities

Power needs to be distributed well in industrial parks, manufacturing plants, and production sites. Our transformers can handle a wide range of challenging load levels while still being efficient and reliable.

Application areas

FAQ

Q: What insulation class do your 35kV transformers use?

Our product units feature Class F or H insulation systems. Temperature rise stays controlled within 100K for Class F and 125K for Class H according to IEC standards. This ensures high reliability and extended service life for your investment.

Q: Why choose resin insulation over oil-filled transformers?

Resin insulation offers you several critical advantages. They're flame retardant and self-extinguishing, eliminating fire risks. You won't deal with oil pollution or environmental hazards. Noise levels stay lower, and moisture resistance is substantially stronger. These features make them perfect for indoor installations, high-rise buildings, commercial spaces, and any location where fire safety is paramount.

Q: Can you accommodate outdoor installations?

Absolutely. We provide customized IP protection ratings suitable for both indoor and outdoor environments. Your specific installation conditions determine the optimal protection degree, and we'll engineer the solution accordingly.

Q: What's your production and delivery timeline?

Production capacity and timeline depend on your specific requirements and order quantity. Our 120+ sets of advanced equipment enable efficient manufacturing while maintaining quality standards. Contact us with your project details for an accurate schedule.

Q: Do you provide installation support?

Yes. Our comprehensive service includes installation guidance and technical support. Our team of experienced engineers can assist with site preparation, installation supervision, and commissioning to ensure optimal performance from day one.

Contact Us

Ready to discuss your power distribution project with Cast Resin Dry-type Transformer 35kV and below? Reach out to our team at tuojie@electricinchina.com for customized solutions and expert consultation.

CUSTOMER CASE

 

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