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Fengguang Transformer

Transformer family

Oil-Immersed Transformers

10 kV, 20 kV and 35 kV distribution and power transformers from 50 to 10,000 kVA.

77

Models

GB/IEC

Standards

50+

Countries

Quick answer. 10 kV, 20 kV and 35 kV distribution and power transformers from 50 to 10,000 kVA. Fengguang supplies 77 published models and variants in this family, with project-specific windings, cooling, protection and finish confirmed on the approved datasheet.
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30 kVA 10 kV Oil-Immersed power Transformer — Fengguang Transformer 10kV Oil-Immersed Distribution Transformer
30 kVA 10 kV

30 kVA 10 kV Oil-Immersed power Transformer

30kVA 10KV Oil-Immersed Power Transformer - An Efficient and Stable Choice for Outdoor Distribution The industry's pain points are…

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30 kVA 10 kV Oil-Immersed Transformer High Performance — Fengguang Transformer 10kV Oil-Immersed Distribution Transformer
30 kVA 10 kV

30 kVA 10 kV Oil-Immersed Transformer High Performance

30KVA 10KV High Performance Oil Immersed Transformer : Dedicated Equipment for Stable Power Distribution Currently, small and medi…

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80 kVA 10 kV Oil-Immersed power Transformer — Fengguang Transformer 10kV Oil-Immersed Distribution Transformer
80 kVA 10 kV

80 kVA 10 kV Oil-Immersed power Transformer

Product Description of 80kVA 10KV Oil-Immersed Power Transformer In 10KV distribution scenarios, traditional oil-immersed transfor…

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80 kVA 10 kV Oil-Immersed Transformer No Excitation — Fengguang Transformer 10kV Oil-Immersed Distribution Transformer
80 kVA 10 kV

80 kVA 10 kV Oil-Immersed Transformer No Excitation

80KVA 10KV Oil-immersed Transformer with No Excitation Voltage Regulation: Dedicated Equipment for Stable Power Distribution

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125 kVA 10 kV Oil-Immersed power Transformer — Fengguang Transformer 10kV Oil-Immersed Distribution Transformer
125 kVA 10 kV

125 kVA 10 kV Oil-Immersed power Transformer

In the 10KV medium-capacity power distribution scenarios, the equipment's load capacity is often insufficient and it is prone to f…

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125 kVA 10 kV Oil-Immersed Transformer Low Loss — Fengguang Transformer 10kV Oil-Immersed Distribution Transformer
125 kVA 10 kV

125 kVA 10 kV Oil-Immersed Transformer Low Loss

125KVA 10KV Low-Loss Oil Immersed Transformer for Multi-Scenario Power Distribution Equipment

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200 kVA 10 kV Oil-Immersed power Transformer — Fengguang Transformer 10kV Oil-Immersed Distribution Transformer
200 kVA 10 kV

200 kVA 10 kV Oil-Immersed power Transformer

In the 10KV large-capacity power distribution scenarios, the equipment is prone to overheating and high energy consumption due to…

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200 kVA 10 kV Oil-Immersed Transformer Renewable Energy — Fengguang Transformer 10kV Oil-Immersed Distribution Transformer
200 kVA 10 kV

200 kVA 10 kV Oil-Immersed Transformer Renewable Energy

200KVA 10KV Oil-immersed Transformer : Dedicated Power Distribution Equipment for New Energy Projects

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30 kVA 20 kV Oil-Immersed power Transformer — Fengguang Transformer 20kV Oil-Immersed Distribution Transformer
30 kVA 20 kV

30 kVA 20 kV Oil-Immersed power Transformer

I. Core Overview 30kVA 20KV oil-immersed power transformer, mainly targeting small-capacity high-voltage distribution adaptation…

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30 kVA 20 kV Oil-Immersed Transformer Pure Aluminum — Fengguang Transformer 20kV Oil-Immersed Distribution Transformer
30 kVA 20 kV

30 kVA 20 kV Oil-Immersed Transformer Pure Aluminum

30KVA 20KV All-Aluminum Winding Oil Immersed Transformer Outdoor Power Distribution Equipment

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80 kVA 20 kV Oil-Immersed power Transformer — Fengguang Transformer 20kV Oil-Immersed Distribution Transformer
80 kVA 20 kV

80 kVA 20 kV Oil-Immersed power Transformer

I. Core Overview 80kVA 20KV oil-immersed power transformer, mainly targeting medium-capacity high-voltage power distribution adapt…

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80 kVA 20 kV Oil-Immersed Transformer Pure Copper — Fengguang Transformer 20kV Oil-Immersed Distribution Transformer
80 kVA 20 kV

80 kVA 20 kV Oil-Immersed Transformer Pure Copper

80KVA 20KV All-Copper Oil Immersed Transformer Outdoor Power Distribution System

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125 kVA 20 kV Oil-Immersed power Transformer — Fengguang Transformer 20kV Oil-Immersed Distribution Transformer
125 kVA 20 kV

125 kVA 20 kV Oil-Immersed power Transformer

Core Overview This transformer is suitable for 20KV high-voltage scenarios, with a capacity of 125kVA. It is mainly used in small…

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125 kVA 20 kV Oil-Immersed Transformer Low Loss — Fengguang Transformer 20kV Oil-Immersed Distribution Transformer
125 kVA 20 kV

125 kVA 20 kV Oil-Immersed Transformer Low Loss

125KVA 20KV Low-Loss Oil-immersed Transformer : Energy-Saving and Stable Power Distribution Equipment

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200 kVA 20 kV Oil-Immersed power Transformer — Fengguang Transformer 20kV Oil-Immersed Distribution Transformer
200 kVA 20 kV

200 kVA 20 kV Oil-Immersed power Transformer

During the stage of 10KV upgrade and 20KV high-voltage network integration, many industrial areas faced problems such as single se…

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200 kVA 20 kV Oil-Immersed Transformer High Efficiency — Fengguang Transformer 20kV Oil-Immersed Distribution Transformer
200 kVA 20 kV

200 kVA 20 kV Oil-Immersed Transformer High Efficiency

200KVA 20KV High-Efficiency Oil-immersed Transformer : Energy-Saving and Stable Power Distribution Equipment Currently, high-volta…

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10 kV Standard Prefabricated Substation — Fengguang Transformer 35kV On-Load Tap-Changing Transformer
10 kV

10 kV Standard Prefabricated Substation

The 10kV State Grid Standard Prefabricated Substation (Metallic Type) is designed in strict compliance with State Grid standards…

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10 kV State Grid Standard Prefabricated Substation — Fengguang Transformer 35kV On-Load Tap-Changing Transformer
10 kV

10 kV State Grid Standard Prefabricated Substation

This prefabricated substation meets the requirements of specifications such as Standardized Design and Customization Scheme for 10…

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Compact Assembled Box Electrical Substation — Fengguang Transformer 35kV On-Load Tap-Changing Transformer

Compact Assembled Box Electrical Substation

Innovative Product Integrating Advantages of American and European Box-Type Substations

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YB Series Pre-Assembled Substation(European Box Variable) — Fengguang Transformer 35kV On-Load Tap-Changing Transformer

YB Series Pre-Assembled Substation(European Box Variable)

The high-voltage/low-voltage prefabricated substation can quickly respond to power distribution needs in multiple scenarios such a…

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1000 kVA 35 kV Oil-Immersed power Transformer — Fengguang Transformer 35kV On-Load Tap-Changing Transformer
1,000 kVA 35 kV

1000 kVA 35 kV Oil-Immersed power Transformer

The core of the industry's pain points lies in the poor adaptability of medium and high voltage Power Distribution Equipment , the…

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1000 kVA 35 kV Oil-Immersed Transformer Low Loss — Fengguang Transformer 35kV On-Load Tap-Changing Transformer
1,000 kVA 35 kV

1000 kVA 35 kV Oil-Immersed Transformer Low Loss

Low-Loss 35KV 1000KVA Oil-immersed Transformer for Stable Power Supply in Industrial Power Distribution

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1600 kVA 35 kV Oil-Immersed power Transformer — Fengguang Transformer 35kV On-Load Tap-Changing Transformer
1,600 kVA 35 kV

1600 kVA 35 kV Oil-Immersed power Transformer

The industry's pain points mainly lie in the insufficient stability of high- Power Distribution Equipment , the difficulty in expa…

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1600 kVA 35 kV Oil-Immersed Transformer High Efficiency — Fengguang Transformer 35kV On-Load Tap-Changing Transformer
1,600 kVA 35 kV

1600 kVA 35 kV Oil-Immersed Transformer High Efficiency

High-Efficiency 1600KVA 35KV Oil-immersed Transformer Adapted to Multiple Power Transmission Scenarios

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7 models

More in this family

35 kV Class Power Transformer — Fengguang Transformer Oil-Immersed Distribution Transformer
35 kV

35 kV Class Power Transformer

The 35kV series power transformers feature advanced design, with significant improvements and enhancements in materials, structure…

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Level 1 Energy Efficiency Oil-Immersed Transformer — Fengguang Transformer Oil-Immersed Distribution Transformer

Level 1 Energy Efficiency Oil-Immersed Transformer

The Level 1 Energy Efficiency Oil-immersed Transformer independently developed by Fengguang focuses on the optimized and innovativ…

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Level 2 Energy Efficiency Oil-Immersed Transformer — Fengguang Transformer Oil-Immersed Distribution Transformer

Level 2 Energy Efficiency Oil-Immersed Transformer

Innovation-Driven Energy Efficiency Upgrading By integrating the research and application of new materials and new technologies, a…

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New energy Chinese-style Transformer — Fengguang Transformer Oil-Immersed Distribution Transformer

New energy Chinese-style Transformer

Analysis on the Structural Design and Key Components of New Energy-Specific Transformers

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S13-Type Oil-Immersed Distribution Transformer — Fengguang Transformer Oil-Immersed Distribution Transformer

S13-Type Oil-Immersed Distribution Transformer

The S13-Type Transformer is an independently developed product of Fengguang. Based on the original S11 Distribution Transformer…

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SH15-Type Amorphous Alloy Transformer — Fengguang Transformer Oil-Immersed Distribution Transformer

SH15-Type Amorphous Alloy Transformer

This product is of the oil-filled sealed type, and its working principle is consistent with that of sealed power transformers. The…

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ZGS Combined Transformer for New Energy — Fengguang Transformer Oil-Immersed Distribution Transformer

ZGS Combined Transformer for New Energy

The ZG8 Series Combined Transformer for New Energy (Wind/PV) is an integrated power distribution unit that combines power receivin…

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Selection notes

How to read this family

Oil-immersed transformers use insulating oil for both dielectric strength and heat transfer. That makes them compact, robust and cost-effective for outdoor distribution, industrial substations and renewable-energy step-up duty.

Fengguang builds the S11, S13, S20 and S22 families from 50 to 10,000 kVA at 10 kV, 20 kV and 35 kV. The range covers standard distribution units, low-loss and energy-efficient designs, hermetically sealed tanks, no-excitation units and on-load tap-changing models. Every unit is designed to GB 1094.1 and GB/T 6451, with routine testing to IEC 60076.

For export projects, the specification usually turns on four decisions: loss grade, impedance and tap range, winding material, and environmental protection. We confirm those inputs on a project datasheet before production, then inspect against the approved drawing. Options include C4/C5 corrosion systems, IP54 enclosures, high-temperature cooling margins, 60 Hz designs and alternate terminal arrangements.

Buyer questions

Questions to settle before the datasheet

Should I choose an oil-immersed or dry-type transformer?
Choose oil-immersed for outdoor sites, higher capacities, better heat rejection and lower first cost. Choose dry-type where fire safety, indoor installation or oil containment is the deciding constraint. Both options can be quoted against the same load case.
What do S11, S13, S20 and S22 mean?
They are model families with different loss and efficiency levels. S11 is a proven baseline; S13 reduces no-load loss; S20 and S22 target higher efficiency classes. The right choice depends on the tariff, load profile and the buyer's energy-efficiency requirement.
Can you supply 60 Hz and high-ambient versions?
Yes. Frequency, ambient temperature, altitude, solar gain and enclosure type are design inputs. For 50 °C or 55 °C sites the cooling surface, oil volume and current density are adjusted and confirmed on the datasheet.
How is the transformer tested before shipment?
Routine tests include winding resistance, ratio, impedance, no-load loss, load loss, insulation resistance and power-frequency withstand. Type tests and special tests such as temperature rise, impulse and short-circuit can be witnessed on request.