PRODUCT CENTER
20-24kV three-phase oil-immersed transformer
Oil-immersed transformers can be widely used in high-rise buildings, commercial centers, subways, airports, stations, industrial and mining enterprises, drilling platforms, and oil production platforms. They are especially suitable for use in places with high fire protection requirements and harsh environments such as flammable and explosive materials. They can also be used for power and lighting in residential areas, commercial streets, industrial and mining enterprises, and rural areas.
13.2kV/13.8kV oil-immersed transformer
Oil-immersed transformers can be widely used in high-rise buildings, commercial centers, subways, airports, stations, industrial and mining enterprises, drilling platforms, and oil production platforms. They are especially suitable for use in places with high fire protection requirements and harsh environments such as flammable and explosive materials. They can also be used for power and lighting in residential areas, commercial streets, industrial and mining enterprises, and rural areas.
11kV 500kVA Oil Immersed Transformer
Oil-immersed transformers can be widely used in high-rise buildings, commercial centers, subways, airports, stations, industrial and mining enterprises, drilling platforms, and oil production platforms. They are especially suitable for use in places with high fire protection requirements and harsh environments such as flammable and explosive materials. They can also be used for power and lighting in residential areas, commercial streets, industrial and mining enterprises, and rural areas.
10kV 800kVA Oil Immersed Transformer
represents the pinnacle of reliability and durability in power distribution. Engineered with a robust construction, it is designed to withstand demanding operational conditions, ensuring a consistent and stable power supply for industrial and utility applications. The core and coil assembly is meticulously crafted to minimize energy losses, providing an efficient solution for your energy management needs. This foundational strength makes it an indispensable asset for any critical infrastructure.
20-24kV three-phase oil-immersed transformer
Oil-immersed on-load tap-changing transformers are widely applicable in high-rise buildings, commercial centres, subways, airports, stations, industrial and mining enterprises, drilling platforms, and oil production platforms. They are particularly suitable for use in fire-prone areas with harsh environmental conditions, such as zones containing flammable and explosive materials. Additionally, they can be used for power supply and lighting in residential areas, commercial streets, industrial and mining enterprises, and rural regions.
S Series 10kv/20kv Oil-immersed Transformer
S Series 10kV/20kV Three‑Phase Oil‑Immersed Distribution Transformer Our S‑series (S11/S13/S20/S22) oil‑immersed transformers are designed for 10kV or 20kV, 50Hz AC power systems. They serve as distribution transformers for industrial plants (petroleum, metallurgy, chemical, textile) and sites with heavy dust.
110kv Oil-immersed Transformer
110kV three-phase oil-immersed power transformer is a high-voltage power transmission and transformation equipment, designed for regional power grids, industrial power stations and large-scale power distribution projects.
S9 series oil-immersed distribution transformers are classic and reliable power distribution equipment widely used in global power grid systems. Featuring stable performance, low noise, reasonable loss rate and strong overload capacity, this conventional oil-filled transformer adopts mature manufacturing technology and off-circuit tap regulation design. Cost-effective and fully compliant with IEC international standards, it is ideal for urban and rural power grids, industrial plants, residential areas and general power distribution projects.
S11 series fully sealed oil-immersed distribution transformers are high-efficiency, low-loss power distribution equipment designed for 6kV, 10kV, 20kV and 35kV power systems. Featuring ultra-low no-load loss, low noise, maintenance-free operation and strong short-circuit resistance, this energy-saving transformer is widely used for residential, commercial, industrial and new energy power distribution projects, fully compliant with IEC international standards.
HAINAN JIUSTEEL GROUP CO., LTD.
Hainan Jiusteel Group Co., Ltd. is a leading professional power transformer manufacturer and exporter in China, dedicated to providing efficient, reliable, and full-voltage-grade transformer solutions for global customers. Leveraging China's complete power equipment industry chain, our products are exported to more than 80 countries and regions across Southeast Asia, the Middle East, Africa, Europe, and South America, with cumulative exports exceeding 50,000 units. We are a core supplier to numerous international power groups and EPC contractors.
Production Experience
Active Employees
Floor Area
Exporting Countries
SOLUTION
cement plant
Coal mine project
Mining Industry
Photovoltaics
power station
Refrigeration equipment
State Grid Electricity
Wind Power Projects
NEWS
Prefabricated Substation – Integrated, Efficient Modular Power Solution for Global Power Distribution Systems
The prefabricated substation (also known as compact substation or box-type substation) is a modular, integrated power distribution device, manufactured in strict accordance with IEC 60076, GB 1094 and GB 50059 international and national standards.
Dry-Type Power Transformer – Fire-Resistant, Low-Maintenance Power Conversion Solution for Global Safe Power Systems
The dry-type power transformer is a high-safety, eco-friendly power conversion device, manufactured in strict accordance with IEC 60076 and GB 1094 international and national standards. Different from traditional oil-immersed transformers, it uses air or inert gas as the cooling medium and epoxy resin or Nomex insulating paper as the core insulation material, featuring fire resistance, explosion proof, no oil leakage and low maintenance.
05-08
2026
Oil-Immersed Power Transformer – Reliable, Efficient Power Conversion Core for Global Power Systems
The oil-immersed power transformer is a fundamental and widely used power conversion device in global power transmission and distribution systems, manufactured in strict accordance with IEC 60076 and GB 1094 international and national standards.
04-17
2026
S20 Oil-Immersed Transformer – High-Efficiency, Energy-Saving Distribution Core for Global Green Power Systems
The S20 series oil-immersed transformer is a high-performance energy-saving distribution transformer, upgraded and optimized based on the S13 series, and strictly manufactured in accordance with IEC 60076 and GB 20052-2024 international and national standards.
01-15
2026
10kV 800kVA Oil-Immersed Transformer – High-Efficiency, Reliable Distribution Solution for Global Industrial & Grid Applications
The 10kV 800kVA oil-immersed transformer is a high-performance medium-power distribution transformer, manufactured in strict accordance with IEC 60076 and GB 1094 international and national standards.
12-13
2025
Electroslag Furnace Transformer – High-Power, Stable Power Supply Core for Metallurgical & Refining Industries
The electroslag furnace transformer is a specialized high-power transformer designed exclusively for electroslag remelting (ESR) equipment, serving as the core power supply component in the metallurgical industry.
CONTACT US
Tel : +8618865138026
E-mail : sales@jiusteelgroup.com
WhatsApp : +8618865138026
GET A FREE QUOTE
Copyright 2026 : Hainan Jiusteel Group Co., Ltd.