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SCB10 Cast Resin Dry Type Transformer 30-2500kVA

SCB Cast Resin Dry Type Transformer

SCB Cast Resin Dry Type Transformer 30,000-2,500,000VA is designed for reliable power distribution in building, industrial, commercial, infrastructure, and public utility projects. Available with rated capacities from 30,000 to 2,500,000 VA and high-voltage ratings of 6000/10000/10500/11000 V, this vacuum-cast epoxy resin transformer provides stable electrical performance, strong insulation, low energy loss, and reliable fire-safe operation. It is suitable for high-rise buildings, commercial centers, hospitals, airports, metro systems, industrial facilities, chemical plants, tunnels, mines, residential communities, and other applications requiring safe, efficient, and low-maintenance power distribution.

Industry Approvals：

GB/T 10228

GB 20052-2024

IEC 60076-11


Size:	SCB10 SCB11 SCB13 SCB14 SCB18
Availability:



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Product Model	SCB Cast Resin Dry Type Transformer
Product Type	Cast Resin Dry-Type Transformer
Rated Capacity	30–2500 kVA
Rated Voltage	High Voltage: 6 / 10 / 10.5 / 11 kV; Low Voltage: 0.4 kV
Frequency	50 Hz
Connection Symbol	Dyn11 / Yyn0
Cooling Method	AN (Natural Air Cooling) / AF (Forced Air Cooling)
Insulation Class	Class F (155°C) / Class H (180°C), optional
Temperature Rise Limit	Average winding temperature rise ≤100 K (Class F) / ≤125 K (Class H)
Impedance Voltage	4% / 6% / 8%, optional
Efficiency	96.9%–99.1% (cosφ = 0.8, full load)
Noise Level	45–71 dB(A)
Protection Degree	IP20 (Standard) / IP23 (Optional)
Altitude	≤1000 m (Customizable for higher altitudes)
Ambient Temperature	-25°C to +40°C
Relative Humidity	≤80% (Monthly average ≤90%)
Seismic Intensity	≤8 degrees
Core Structure	Wound Core / Laminated Core (Step-Lap Core)
Winding Structure	Copper Foil Winding / Cylindrical Winding
Casting Process	Vacuum Casting / Epoxy Resin Insulation
Installation	Indoor Installation (Outdoor installation requires a protective enclosure)

How to Choose the Right SCB Dry-Type Transformer

Model	Energy Efficiency	No-load Loss	Recommended For	Selection Advice
SCB10	Obsolete	Higher	Replacement of older transformers	Not recommended for new projects
SCB11	Obsolete	Higher	Replacement of older transformers	Not recommended for new projects
SCB13	NX3 / Level 3	Moderate	Budget-constrained projects	Choose when initial cost is the main concern
SCB14	NX2 / Level 2	Low	General-purpose applications	Recommended for most standard projects
SCB18	NX1 / Level 1	Lowest	Premium applications, data centers	Choose for maximum energy efficiency and long-term operating savings

SCB Series Dry-Type Transformer.xlsx

*Data provided on this page is subject to change based on different manufacturers' variances.

Customization Service

We provide flexible OEM customization services, including cable size, core count, conductor structure, insulation and sheath materials, color, length, and packaging. Custom marking options include surface printing, indent printing, logos, icons, branding, and sequential marking to meet project-specific identification, traceability, and branding requirements.

A	What types of transformers do you manufacture?
Q	We manufacture a wide range of transformers including oil-immersed power transformers, dry-type transformers, distribution transformers, amorphous alloy transformers, and special-purpose transformers. Voltage levels typically range from 10kV to 110kV, with capacities from 30kVA to 100,000kVA. Custom specifications are available upon request.
Q	What standards do your transformers comply with?
A	Our transformers are designed and manufactured in compliance with IEC 60076, GB/T 1094 and other relevant international standards. We can also produce according to ANSI/IEEE, DIN, BS and other regional standards based on your target market requirements.
Q	Can you provide transformers for renewable energy projects?
A	Yes. We manufacture dedicated transformers for renewable energy applications including photovoltaic (PV) boost transformers, wind power transformers, box-type transformer stations and energy storage transformers. These are specifically engineered to handle the fluctuating load characteristics of renewable generation.
Q	Can you provide transformers with specific vector groups and impedance?
A	Yes. We can manufacture transformers with various vector groups (such as Dyn11, Yyn0, Yd11, YNd11) and custom impedance values to match your grid requirements. Please specify these parameters in your inquiry so we can configure the unit accordingly.
Q	What cooling methods are available for your transformers?
A	For oil-immersed transformers, we offer ONAN (oil natural air natural), ONAF (oil natural air forced) and OFAF (oil forced air forced) cooling methods. For dry-type transformers, AN (air natural) and AF (air forced) cooling are available. The appropriate cooling method is selected based on capacity and application environment.
Q	Can you provide transformers with special insulation levels or altitude ratings?
A	Yes. We can manufacture transformers with enhanced insulation levels for lightning-prone areas, and derated designs for high-altitude installations above 1000m where cooling and insulation performance are affected. Please specify your site conditions.
Q	What protection accessories can be fitted to your transformers?
A	Our transformers can be equipped with a full range of protection and monitoring accessories including Buchholz relays, pressure relief devices, oil temperature indicators, winding temperature indicators, conservator tanks, silica gel breathers, magnetic oil level gauges and tap changers. We configure these based on your project specifications.
Q	What tests do your transformers undergo?
A	Every transformer undergoes routine tests including winding resistance measurement, voltage ratio measurement, no-load loss and current measurement, load loss and impedance voltage measurement, dielectric tests (power frequency withstand and lightning impulse), and oil quality tests. We provide a complete test report with each shipment.
Q	How are transformers packaged and shipped?
A	Transformers are securely packaged to withstand long-distance sea freight. Small and medium units are protected with shock-proof packaging on wooden pallets or in wooden crates. Large power transformers are shipped in parts with core, windings, tank and accessories separately packed, with full assembly and commissioning guidance provided. All wooden packaging meets ISPM 15 standards.
Q	Does Yaogu have experience with international projects?
A	Yes. Established in 2004, Yaogu has more than 20 years of experience in electrical products and international trade, serving customers across global markets. Our team supports product selection, specification confirmation, custom production, quality inspection, export packaging, shipping coordination, technical documentation, and after-sales service.

One-Stop Electrical Power Products

Founded in 2004, Tangshan Yaogu specializes in the manufacturing and supply of electrical equipment, including cables, distribution boxes, circuit breakers, and complete electrical accessories.

With advanced production facilities, strict quality control, and integrated R&D, manufacturing, and service capabilities, we provide reliable electrical solutions for industrial, construction, and infrastructure projects worldwide. Committed to quality, innovation, and long-term partnerships, we deliver high-performance products and professional support to global customers.

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SCB Cast Resin Dry Type Transformer

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