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Certified transformers (≤35kV), smart substations & PV-storage systems — engineered with 9 patents. Precision-built for renewable integration and grid reliability. Request specs
SCB10-200/35/0.4 Dry Type Transformer
The SCB10-18 epoxy resin cast dry-type transformer produced by our factory is a low-noise and low loss equipment with a national product model certificate. SCB18 and SCB14 dry-type transformers are the latest energy-saving products developed by our company. The product adopts advanced design, high-quality materials, scientific formula, strict process and high standard testing, and has the following characteristics:
SCB10-2000/35/0.4 Dry Type Transformer
The SCB10-18 epoxy resin cast dry-type transformer produced by our factory is a low-noise and low loss equipment with a national product model certificate. SCB18 and SCB14 dry-type transformers are the latest energy-saving products developed by our company. The product adopts advanced design, high-quality materials, scientific formula, strict process and high standard testing, and has the following characteristics:
SCB10-30/10/0.4 Dry Type Transformer
The SCB10-18 epoxy resin cast dry-type transformer produced by our factory is a low-noise and low loss equipment with a national product model certificate. SCB18 and SCB14 dry-type transformers are the latest energy-saving products developed by our company. The product adopts advanced design, high-quality materials, scientific formula, strict process and high standard testing, and has the following characteristics:
SCB10-100/35/0.4 Dry Type Transformer
The SCB10-18 epoxy resin cast dry-type transformer produced by our factory is a low-noise and low loss equipment with a national product model certificate. SCB18 and SCB14 dry-type transformers are the latest energy-saving products developed by our company. The product adopts advanced design, high-quality materials, scientific formula, strict process and high standard testing, and has the following characteristics:
SCB10-1000/35/0.4 Dry Type Transformer
The SCB10-18 epoxy resin cast dry-type transformer produced by our factory is a low-noise and low loss equipment with a national product model certificate. SCB18 and SCB14 dry-type transformers are the latest energy-saving products developed by our company. The product adopts advanced design, high-quality materials, scientific formula, strict process and high standard testing, and has the following characteristics:
Application scenario
Designed for Critical Power Infrastructure
Whether used in EPC projects or grid upgrades, our transformers deliver reliability, high efficiency, and compliance with international standards.
Industrial Plants
Residential Communities
Urban Distribution Networks
Power Grid Projects
Solar PV Systems
Product Features
Key Features of This Product Line
Built for industrial and utility-scale applications, our products feature high-quality materials, low energy loss, and robust insulation. Each unit is designed and tested to GB/IEC standards, with support for custom voltage levels, tap changers, and protection grades. From core processing to final testing, we ensure long-term reliability and project-specific adaptability.
On-load / off-load tap changers
Transformer ratings up to 35kV
Cabinet design & layout drawings
Site-matching size & interface
Customized cooling / protection level
PV inverter integration & full pre-wiring
Available Models & Technical Specifications
Available Models & Technical Specifications
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SCB10, SCB12, SCB14, SCB18 Series
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Rated Capacity: 30kVA – 2500kVA (Standard), up to 31500kVA (for 35kV)
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Rated Voltage: 10kV / 35kV
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Connection Group: Yyn0 / Dyn11
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Protection Level: IP20 / IP31
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Cooling: AN (Air Natural), AF (Air Forced)
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Standards: GB/T 1094.11, GB/T 10228, GB/T 20052 (Level 1/2 Efficiency)
(Specification table or downloadable datasheet as per your documentation)
We support transformer customization including
Custom Design to Match Your Project Requirements
Voltage class, capacity, vector group
Tap changer type (OLTC/NLTC)
Custom paint, nameplate, cable bushing
Packaging and labeling for export
Special insulation or protection level
We support transformer customization including
Factory Tested. Globally Delivered.
In-house vacuum drying, impulse testing, and heat run facilities
100% testing before shipment
CE / ISO9001 / ISO14001 certified
Export packaging + 3rd party inspection supported
Frequently Asked Questions
We understand that as a professional buyer, you may have technical, logistical, or customization concerns. Below are answers to some of the most frequently asked questions to help you make informed decisions.
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Q Can You Provide Technical Drawings & Specifications Before Placing an Order?A
Yes. We offer detailed transformer drawings, full technical specs, and compliance documents upon request.
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Q What Are the Standard and Optional Protection Levels?A
Standard enclosures are IP20 and IP31, with options for stainless steel or aluminum materials.
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Q Do You Offer Customized Solutions for Non-standard Projects?A
Absolutely. We support engineered-to-order transformers for special voltage, capacity, connection group, or installation environment.
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Q How Are Dry-Type Transformers Tested?A
Every transformer undergoes full type/routine tests including insulation resistance, partial discharge, temperature rise, impulse voltage, and load/no-load loss measurement.
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Q How Do You Ensure Product Safety and International Compliance?A
Our transformers are produced and tested to strict GB and IEC standards. We provide certificates and support third-party inspection for export.
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Whether you're upgrading an existing line or starting a new project, STON will customize a CNC solution for your production.