A Leading Manufacturer of Oil-Immersed Transformers Providing Customized Power Solutions

Time：2026-01-19    Auther：ZTelec-www.ztelectransformer.com

As a leading manufacturer of oil-immersed transformers, we are committed to delivering customized and reliable power solutions for customers worldwide. With the continuous development of global industry and the ongoing modernization of power grids, oil-immersed transformers remain a core component of electrical power systems due to their mature technology, excellent heat dissipation performance, and proven long-term reliability.

Leveraging extensive industry experience and advanced manufacturing capabilities, we produce high-efficiency, stable, and durable oil-immersed transformers designed to meet the diverse requirements of power transmission, distribution, industrial, and renewable energy applications. Our solutions are engineered to balance performance, economy, and operational safety throughout the entire lifecycle of the equipment.

Core Technologies of Oil-Immersed Transformers

Our oil-immersed transformers are developed using mature engineering technologies combined with carefully selected raw materials. The transformer cores are manufactured from high-permeability, low-loss silicon steel laminations, effectively reducing no-load losses and improving overall energy conversion efficiency.

Optimized winding structures enhance mechanical strength and short-circuit withstand capability, ensuring stable performance under dynamic load conditions. High-performance insulation materials are applied to improve dielectric strength and thermal endurance, significantly extending equipment service life.

Advanced vacuum oil filling processes and reliable sealing technologies are adopted to ensure oil purity and long-term operational stability. These design and manufacturing measures result in low temperature rise, strong overload capability, and consistent performance during continuous operation in complex environments.

Professional Manufacturing Capabilities

Supported by a mature manufacturing system and a skilled engineering team, we are capable of producing a wide range of oil-immersed transformer products for different voltage levels and application scenarios. Our manufacturing capabilities cover oil-immersed power transformers with voltage ratings up to 110kV, as well as distribution transformers for medium and low voltage networks.

We also supply on-load tap-changing and off-load tap-changing transformers, step-up and step-down transformers, and special-purpose transformers designed for industrial systems and renewable energy projects. Each product is engineered to meet specific operational requirements while maintaining high efficiency and reliability.

All products are designed and manufactured in strict accordance with international and regional standards, including IEC, IEEE, ANSI, GOST, and GB. Compliance with these standards ensures consistent quality, low losses, and long service life across different markets and applications.

Customized Power Solutions for Diverse Requirements

Different projects present different challenges in terms of voltage levels, capacity configuration, operating environment, and installation conditions. We provide full-process customization services to ensure that each oil-immersed transformer precisely matches the actual application requirements.

Customization options include tailored rated capacity and voltage levels, flexible selection of cooling methods such as ONAN, ONAF, and OFAF, and optimized insulation systems and structural designs. Our solutions can be adapted for special environments including high-temperature regions, cold climates, and high-humidity conditions.

We conduct in-depth technical communication with clients during the project planning stage to clarify key performance requirements and operating conditions. This collaborative approach helps improve overall system efficiency, operational safety, and long-term reliability.

Wide Range of Application Areas

In the energy and power transmission and distribution sector, our oil-immersed transformers support power grid companies, wind power projects, and photovoltaic power plants by improving transmission efficiency and grid stability.

For industrial and manufacturing applications, we design transformers capable of withstanding impact loads, handling harmonic distortion, and operating reliably in demanding environments such as steel plants, chemical facilities, mining operations, and data centers.

In infrastructure and urban construction projects, our compact, low-noise, and highly secure transformer solutions are widely applied in rail transit systems, airports, ports, and large commercial complexes.

We also undertake overseas and special-standard projects, leveraging our deep understanding of IEC, IEEE, and ANSI standards to meet grid regulations and environmental requirements in different countries and regions.

Quality Commitment and Technical Innovation

Quality control is implemented throughout the entire manufacturing process, from raw material inspection to finished product testing. Each transformer undergoes routine testing and type testing to ensure full compliance with applicable standards and technical specifications.

Continuous technological innovation is a core part of our development strategy. We invest in research and development focusing on intelligent monitoring systems, environmentally friendly insulating oils, and advanced noise reduction technologies to meet evolving market demands.

We also provide full lifecycle services, including technical consulting, system design support, installation and commissioning guidance, routine maintenance, and equipment upgrades.

Why Choose Our Oil-Immersed Transformers

With decades of experience in oil-immersed transformer research and manufacturing, we have successfully delivered reliable power solutions for thousands of projects worldwide. Our flexible production capacity allows us to efficiently handle both customized small-batch orders and large-scale production requirements.

Our products are supported by comprehensive international certifications, including ISO, CE, UL, and KEMA, reflecting globally recognized quality and performance. In addition, our global service network ensures timely technical support and after-sales service for customers in different regions.

Supporting Reliable Power Projects Worldwide

If you are seeking a professional oil-immersed transformer manufacturer capable of delivering customized and reliable power solutions, we are ready to support your project. Through advanced technology, high-quality products, and efficient service, we help ensure the stable and secure operation of power systems across diverse industries.