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HV & MV POWER SOLUTIONS

Power Distribution Transformers Manufacturer (10kV – 35kV)

XBRELE is a specialized Power Distribution Transformers manufacturer delivering high-efficiency solutions for global grids. From hermetically sealed oil-immersed S13 units to fire-safe cast resin dry-type models, our step-down transformers are certified to IEC 60076 standards.

As an OEM provider, we integrate automatic foil winding and vacuum drying technologies to ensure reliable operation in 10kV, 20kV, and 35kV networks.

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Portfolio Snapshot
Complete range from 30kVA distribution units to 31,500kVA power transformers.
S13 · SCB10 · SBH15 · 35kV
Core Tech: Automatic foil winding & vacuum drying.
Voltage: 6kV / 10kV / 20kV / 35kV.
Manufacturing Capability

Comprehensive Voltage Transformation: 6kV to 35kV

As a specialized Power Distribution Transformers manufacturer, XBRELE integrates advanced capabilities—including fully automatic foil winding machines and vacuum drying systems—to produce reliable medium voltage equipment consistent with IEC 60076 standards.

Our portfolio covers the full spectrum of grid requirements: from robust 10kV/11kV distribution transformers for urban networks to heavy-duty 35kV power transformers for industrial substations. We maintain precise control over core stacking and coil winding to ensure optimal electrical performance.

We offer two primary technologies: Oil-Immersed units with hermetically sealed corrugated tanks for outdoor durability, and Cast Resin Dry-Type units for indoor fire safety. Whether utilizing high-permeability silicon steel or advanced amorphous alloys, our focus is on reducing no-load losses and ensuring maintenance-free operation.

Product Series

Select Your Transformer Solution

XBRELE supplies three distinct transformer technologies tailored for specific environments: Oil-Immersed for outdoor efficiency, Cast Resin Dry-Type for indoor safety, and Amorphous Alloy for green energy projects.

OIL IMMERSED TRANSFORMER SERIES

S11 / S13 & 35kV Power Transformers: Hermetically Sealed

Our Oil-Immersed range includes the standard S11/S13 distribution transformers (10kV-20kV) and the heavy-duty SZ-35kV power transformers. Featuring a corrugated tank structure that eliminates the oil conservator, they are fully hermetically sealed to prevent oxygen ingress and oil aging.

The S13 series utilizes a wound core design to reduce no-load losses by approximately 30% compared to S9 standards, making it ideal for rural and urban grids.

Key Specifications
  • Models: S11-M, S13-M, SZ-35kV
  • Capacity: 30kVA – 31,500kVA
  • Voltage: 6kV / 10kV / 20kV / 35kV
  • Tech: Vacuum Oil Injection & OLTC available
  • Structure: Fully sealed corrugated tank
  • Usage: Outdoor Substations, Mining, Petroleum
View Oil-Immersed Series →
OUTDOOR / SEALED
Line art drawing of XBRELE S13 series oil-immersed distribution transformer
S13-M Series 10kV Oil-Immersed Distribution Transformer with corrugated cooling fins.
INDOOR / FIRE SAFE
Technical line art illustration of XBRELE SCB cast resin dry-type transformer
SCB Series Cast Resin Dry-Type Transformer with IP20 enclosure for indoor installation.
DRY TYPE TRANSFORMER SERIES

SCB Cast Resin & 35kV Dry-Type Power Transformers

Designed for high fire-safety requirements, our Dry-Type series covers standard SCB10/11/12/13 (10kV-20kV), environmental SG(B)10 (Class H), and the high-voltage SCB11-35kV power transformer.

Using epoxy resin vacuum casting (F-class) or DuPont Nomex (H-class), these units are moisture-proof, maintenance-free, and capable of operating at 100% humidity.

Key Specifications
  • Models: SCB10-13, SG(B)10, SCB11-35kV
  • Insulation: F-Class (Epoxy) / H-Class (Nomex)
  • Safety: Fire-retardant, Self-extinguishing
  • HV Option: Up to 35kV Dry-Type available
  • Tech: Foil winding for short-circuit strength
  • Usage: High-rise buildings, Subways, Airports
View Dry-Type Series →
ENERGY SAVING SERIES

SBH15 Amorphous Alloy Transformers (Oil & Dry)

For projects demanding maximum energy efficiency, the SBH15 (Oil) and SCBH15 (Dry) series utilize advanced amorphous alloy strip cores. This technology reduces no-load losses by approximately 75% compared to silicon steel S9 models.

Ideal for reducing operating costs (OPEX) in government grids and green energy projects. The low-voltage side features copper foil winding for enhanced short-circuit resistance.

Key Specifications
  • Models: SBH15-M (Oil), SCBH15 (Dry)
  • Efficiency: 75% lower no-load loss
  • Core: Amorphous alloy strip technology
  • Winding: Copper foil low-voltage coil
  • Group: Dyn11 connection to reduce harmonics
  • Usage: Solar/Wind farms, Rural distribution
View Amorphous Alloy Series →
ENERGY SAVING
Engineering line art of XBRELE SBH15 amorphous alloy transformer
SBH15 Series Amorphous Alloy Transformer, delivering industry-leading energy efficiency.
Technical Features

High-Permeability Core & Oxygen-Free Copper Windings

XBRELE transformers are engineered for low-loss stability. We utilize high-permeability grain-oriented cold-rolled silicon steel for the core and oxygen-free copper for windings, ensuring compliance with global efficiency standards.

  • Vacuum Oil Injection: Removes moisture completely from S11/S13 series, preventing insulation aging and oxidation.
  • Corrugated Tank Structure: Provides “breathing” elasticity to compensate for oil volume changes, eliminating the need for a conservator.
  • F-Class Insulation: Our Dry-Type SCB series uses epoxy resin casting to ensure fire safety and moisture resistance suitable for 100% humidity.
  • Amorphous Technology: SBH15 series utilizes amorphous alloy strips to reduce no-load losses by up to 75% for maximum energy efficiency.
Key Markets

Powering Critical Infrastructure Across Sectors

XBRELE transformers are engineered for resilience. From dust-heavy mining sites to strict fire-safety zones in urban centers, our equipment ensures stable power distribution in the most demanding environments.

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Heavy Industry & Mining

Our hermetically sealed oil-immersed transformers (S11/S13) are specifically suited for petroleum, metallurgy, and coal industries. The corrugated tank design withstands high-dust environments common in chemical and industrial zones.

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Urban Infrastructure

For commercial centers, high-rise buildings, and residential districts, our SCB Dry-Type series offers superior fire safety. They can be installed directly in load centers to reduce line losses and ensure safe power supply.

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Transportation Hubs

Providing reliable power for airports, ports, and railway transportation. Our cast resin transformers are designed to handle vibration and load fluctuations, ensuring continuous operation for critical transit infrastructure.

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Power Generation

Supporting power plants and regional substations. Our Amorphous Alloy (SBH15) and 35kV power transformers are optimized for power generation and supply networks, minimizing transmission losses.

Why XBRELE

Manufacturing Excellence: Precision & Reliability

We control every stage of production. From our Computer-Aided Design (CAD) center to our advanced testing shielding rooms, XBRELE ensures every transformer meets the highest industry standards.

Advanced Automation

Our facility utilizes fully automatic aluminum foil winding machines and CNC silicon steel transverse cutting lines. This automation ensures consistent coil tension and core stacking precision for low-loss performance.

Vacuum Process Control

We employ fully automatic vacuum drying and coating devices. This process completely removes moisture and prevents air contact during assembly, guaranteeing the insulation longevity of our hermetically sealed units.

Certified Quality

Reliability is verified. All XBRELE transformer series have passed the rigorous type tests certification of the National Transformer Quality Supervision and Inspection Center, complying with GB and IEC standards.

Global Proven Track Record

Trusted internationally. Our transformers are currently powering grids and industrial projects across diverse regions, with successful exports to markets including Vietnam, Malaysia, and Mongolia.

Technical Support

FAQ: Power Distribution Transformers (10kV-35kV)

Expert answers on selecting reliable Power Distribution Transformers. Learn about our S13 Oil-Immersed, SCB Dry-Type, and 35kV power solutions for global grids.

Why choose S13 Series Power Distribution Transformers over S11?
The S13 series represents the latest generation of Power Distribution Transformers. Utilizing a 3D wound core, S13 models reduce no-load losses by 30% compared to S11. This makes them a superior choice for 10kV and 20kV distribution networks requiring high efficiency and lower noise levels.
When to use a Dry-Type Power Distribution Transformer?
Dry-Type Power Distribution Transformers (SCB Series) are essential for indoor environments like high-rise buildings, subways, or hospitals where fire safety is critical. Unlike oil units, they are self-extinguishing. We also manufacture 35kV Dry-Type Transformers for indoor high-voltage substations.
What standards do your Power Distribution Transformers meet?
As a leading Transformer Manufacturer, XBRELE ensures all units comply with IEC 60076 and GB 1094 standards. Our design protocols align with global best practices outlined by the Institute of Electrical and Electronics Engineers (IEEE), ensuring safety and reliability for international grids.
Are your Oil-Immersed Transformers maintenance-free?
Yes. Our S11 and S13 Oil-Immersed Power Distribution Transformers feature a hermetically sealed corrugated tank. This design eliminates the oil conservator and isolates the oil from air, preventing oxidation. This makes them virtually maintenance-free for outdoor distribution applications.
Do you supply 35kV Power Transformers for substations?
Yes. We manufacture the SZ-35kV Series, a double-winding 35kV Power Transformer with On-Load Tap Changing (OLTC). It is designed for main substations to regulate voltage effectively across 35kV transmission lines down to 10kV distribution levels.
Can your 10kV Transformers handle 20kV switching?
Yes. We offer dual-voltage Power Distribution Transformers (e.g., S11-M-10/20kV). These units feature a switchable tap changer, allowing the transformer to operate at either 10kV or 20kV, providing flexibility for grid upgrades without replacing the equipment.
How do Amorphous Alloy Transformers reduce costs?
Our SBH15 Amorphous Alloy Power Distribution Transformers use advanced amorphous metal cores. This technology lowers no-load losses by up to 75% compared to silicon steel units, significantly reducing operational costs (OPEX) for rural power distribution and renewable energy farms.
What is the overload capacity of your transformers?
XBRELE Power Distribution Transformers are designed with a robust thermal margin. Our oil-immersed and dry-type units can withstand short-term overloads (e.g., 120% load) without damaging insulation, ensuring reliability during peak demand in industrial power distribution.
Do you offer transformers for high-altitude regions?
Yes. While standard Power Distribution Transformers are rated for 1000m, we provide customized plateau-type units for altitudes up to 3500m. These feature enhanced external insulation and cooling to ensure stable performance in high-altitude mining or grid applications.
Looking for a reliable Transformer Manufacturer? Contact XBRELE for a quote on 10kV-35kV Power Distribution Transformers.