Oil-immersed transformer
Strictly control the production process.
1

PRODUCT

Zhonggong Steel (SHANDONG) Group Co., Ltd.boasts strong R&D, design and large-scale production capabilities, specializing in the R&D, manufacturing and sales of oil-immersed, dry-type and prefabricated transformers.

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.

UHPC Prefabricated Substation

UHPC Prefabricated Substation is a new-generation ultra-durable integrated power distribution equipment adopting ultra-high performance concrete shell structure. Fully factory pre-assembled and pre-tested, this 12/0.4kV compact substation integrates high-voltage switchgear, power transformer and low-voltage distribution systems as a complete plug-and-play unit. Featuring ultra-high structural strength, extreme weather resistance, zero corrosion and maintenance-free shell performance, it surpasses traditional steel and ordinary concrete substations in service life and stability.

ZBW-12/0.4 High-Voltage/Low-Voltage Prefabricated Substation (European Style)

ZBW-12/0.4 European Prefabricated Substation is a standard outdoor compact integrated power distribution equipment with 12kV high voltage and 0.4kV low voltage conversion. Factory pre-assembled and pre-tested, this modular box substation integrates HV switchgear, power transformer and LV distribution system as a complete unit. It features small footprint, tool-free quick installation, full weather resistance and high operational safety.

Hua-style prefabricated substation

YBW series European prefabricated substations are compact, fully assembled outdoor box-type power distribution solutions integrating high-voltage switchgear, distribution transformer and low-voltage distribution equipment.

European-style prefabricated substation

YBW European Prefabricated Substation is a compact, factory pre-assembled outdoor box-type power distribution solution. It integrates high-voltage switchgear, power transformer and low-voltage distribution systems into one integrated unit. Featuring small footprint, fast on-site installation, full weather resistance and high safety performance, this modular substation complies with IEC international standards. It is widely used for urban grid renovation, residential communities, industrial parks, road lighting, municipal engineering and outdoor power supply projects worldwide.

ABOUT US

20 year

Industry Experience


15000

15,000 square meters


80 +

Number of Employees


Company Profile

Zhonggong Steel (SHANDONG) Group Co., Ltd.boasts strong R&D, design and large-scale production capabilities, specializing in the R&D, manufacturing and sales of oil-immersed, dry-type and prefabricated transformers.
Benefiting from a prime location and convenient transportation, our factory covers nearly 15,000 square meters. Equipped with advanced production and precision testing equipment, we have established a sound quality control system and standardized management. With reliable quality and mature craftsmanship, we rigorously control every production process. We deliver cost-effective, safe and stable transformers and premium services for global clients. Our products are well-sold at home and abroad, enjoying high recognition and trust worldwide.

Views More >

FACTORY

Benefiting from a prime location and convenient transportation, our factory covers nearly 15,000 square meters. Equipped with advanced production and precision testing equipment, we have established a sound quality control system and standardized management.

FACTORY
FACTORY
FACTORY
FACTORY

WHY CHOOSE US?

With reliable quality and mature craftsmanship, we rigorously control every production process. We deliver cost-effective, safe and stable transformers and premium services for global clients. 

Equipment

The facility is equipped with advanced production machinery and precision testing instruments.

Equipment

Quality

A comprehensive quality control system and a standardized management model have been established.

Advantage

Sales

Our products enjoy strong sales both domestically and internationally.

Advantage

Production

Strict controls are implemented at every stage of the production process.

Advantage

BLOG

we are focused on tapered roller bearing, deep groove ball bearing, spherical roller bearing, automobile wheel hub bearing and cylindrical roller bearing. they are widely used in motorcycle, automobile, agricultural machinery industry and so on.

Oil-Immersed Transformer: Core Equipment for High-Voltage Power Distribution Under Technological Iteration

Against the background of the accelerated construction of a new power system and the rapid development of new energy industry, the oil-immersed transformer, as a key power conversion equipment, has become an indispensable core component in the power grid. With its mature technology, stable performance and large capacity adaptation, it is widely used in various high-voltage power transmission and distribution scenarios.

Pre-assembled Substations: An Analysis of the Core Solution for Integrated, High-Efficiency Power Distribution

Against the background of new power system construction, urban and rural distribution network upgrading and new energy grid connection, prefabricated substations, as highly integrated complete power distribution equipment, have gradually replaced traditional civil engineering substations by virtue of factory prefabrication, rapid on-site deployment, small floor area and low investment cost.

02-10

2026

Dry-Type Transformer: Analysis of Core Equipment for Efficient and Safe Power Distribution

In the power transmission and distribution system, dry-type transformers, as core equipment parallel to oil-immersed transformers, have become the preferred power distribution equipment for many special scenarios due to their outstanding advantages such as oil-free design, fire and explosion prevention, small size, and convenient maintenance.

01-05

2026

Oil-Filled Transformers: An Analysis of Core Equipment in Power Transmission

In the power transmission and distribution network, the oil-immersed transformer serves as the core equipment for voltage conversion and electric energy transmission. It undertakes the vital task of connecting power grids with different voltage levels and ensuring stable power supply.

12-30

2025

Strong demand in overseas markets drives the continued deepening of the internationalization strategy in the transformer industry.

The global energy transition and the upgrading of overseas power grids are accelerating, leading to a surge in demand for transformers in overseas markets.

12-08

2025

Adapting to new power systems, energy-saving transformers are becoming increasingly widespread and faster.

Guided by dual-carbon goals, the construction of new power systems continues to advance.

Leave Message

* Note: Please be sure to fill in the information accurately and keep the communication unblocked, we will get in touch with you as soon as possible

Submit