Jiangsu Tianhua Transformer Co.,Ltd.
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    PRODUCT CENTER
    China Factory Custom 220kV Oil Immersed Power Transformer IEC Standard for Global Grid Project
    China Factory Custom 220kV Oil Immersed Power Transformer IEC Standard for Global Grid Project
    As a core extra-high voltage (EHV) transmission equipment in modern power grid systems, our 220kV oil-immersed three-phase power transformer has become an indispensable backbone for long-distance power transmission, regional grid interconnection, new energy grid integration and large-scale industrial power supply projects worldwide. Manufactured by Jiangsu Tianhua Transformer, a professional Chinese factory with over 20 years of high-voltage transformer R&D and export experience, this series fully follows international authoritative standards including IEC60076, ANSI C57, IEEE, GB/T6451 and ISO quality management norms, covering rated capacity ranging from 31.5MVA up to 360MVA, with customizable primary rated voltage at 220kV / 230kV and secondary voltage options of 10.5kV, 33kV, 35kV, 66kV, 110kV, 132kV as per clients’ local grid requirements. The product supports both 50Hz and 60Hz power frequency to match power systems across Asia, Africa, Middle East, Europe and South America, adapting to diverse regional grid technical specifications and climatic environments from tropical high-temperature coastal areas to alpine low-temperature inland regions.
    Our 220kV transformer is split into two core structural types: on-load tap changer (OLTC) version and off-circuit tap changer (OCTC) version, with two-winding and three-winding customizable layouts available for step-up power plant application or step-down urban substation deployment respectively. The OLTC model realizes real-time voltage regulation under full load without power cut, with typical tap range of ±8×1.25% or ±10×1.25% on high voltage winding, effectively stabilizing output voltage fluctuation caused by peak-valley load change of power grid and renewable energy power generation volatility from wind and photovoltaic power stations. The off-circuit tap changer type features simpler structure and lower procurement cost, suitable for grids with relatively stable load and annual small-range voltage adjustment demand, widely adopted in conventional regional power distribution hubs and medium-sized industrial park substations. All finished products pass strict full-type test including short-circuit withstand test, partial discharge test, temperature rise test and insulation withstand test before factory delivery, ensuring stable long-cycle running under complex grid working conditions.
    China Factory Custom 220kV Oil Immersed Power Transformer IEC Standard for Global Grid Project
    As a core extra-high voltage (EHV) transmission equipment in modern power grid systems, our 220kV oil-immersed three-phase power transformer has become an indispensable backbone for long-distance power transmission, regional grid interconnection, new energy grid integration and large-scale industrial power supply projects worldwide. Manufactured by Jiangsu Tianhua Transformer, a professional Chinese factory with over 20 years of high-voltage transformer R&D and export experience, this series fully follows international authoritative standards including IEC60076, ANSI C57, IEEE, GB/T6451 and ISO quality management norms, covering rated capacity ranging from 31.5MVA up to 360MVA, with customizable primary rated voltage at 220kV / 230kV and secondary voltage options of 10.5kV, 33kV, 35kV, 66kV, 110kV, 132kV as per clients’ local grid requirements. The product supports both 50Hz and 60Hz power frequency to match power systems across Asia, Africa, Middle East, Europe and South America, adapting to diverse regional grid technical specifications and climatic environments from tropical high-temperature coastal areas to alpine low-temperature inland regions.
    Our 220kV transformer is split into two core structural types: on-load tap changer (OLTC) version and off-circuit tap changer (OCTC) version, with two-winding and three-winding customizable layouts available for step-up power plant application or step-down urban substation deployment respectively. The OLTC model realizes real-time voltage regulation under full load without power cut, with typical tap range of ±8×1.25% or ±10×1.25% on high voltage winding, effectively stabilizing output voltage fluctuation caused by peak-valley load change of power grid and renewable energy power generation volatility from wind and photovoltaic power stations. The off-circuit tap changer type features simpler structure and lower procurement cost, suitable for grids with relatively stable load and annual small-range voltage adjustment demand, widely adopted in conventional regional power distribution hubs and medium-sized industrial park substations. All finished products pass strict full-type test including short-circuit withstand test, partial discharge test, temperature rise test and insulation withstand test before factory delivery, ensuring stable long-cycle running under complex grid working conditions.
    Factory Custom Split Winding Transformer for Auxiliary Power Plant & Substation Use
    Factory Custom Split Winding Transformer for Auxiliary Power Plant & Substation Use
    Our split winding transformer features split secondary windings divided into two or three independent branches, which can drastically reduce short-circuit current when one branch suffers short-circuit fault and effectively isolate two load circuits. The independent separated windings avoid mutual interference between two outgoing feeders and improve overall power supply safety for power plant auxiliary system. Optimized low-loss silicon steel core cuts no-load loss and running noise. Reinforced winding structure improves mechanical strength against short-circuit electromagnetic force. Available in oil immersed and dry type with ONAN/ONAF cooling options. Fully compliant with IEC60076 standards, flexible on capacity and voltage customization, widely adopted in thermal power plant, chemical plant and industrial self-provided power station to simplify power distribution design and save investment on expensive current-limiting reactors.
    Factory Custom Split Winding Transformer for Auxiliary Power Plant & Substation Use
    Our split winding transformer features split secondary windings divided into two or three independent branches, which can drastically reduce short-circuit current when one branch suffers short-circuit fault and effectively isolate two load circuits. The independent separated windings avoid mutual interference between two outgoing feeders and improve overall power supply safety for power plant auxiliary system. Optimized low-loss silicon steel core cuts no-load loss and running noise. Reinforced winding structure improves mechanical strength against short-circuit electromagnetic force. Available in oil immersed and dry type with ONAN/ONAF cooling options. Fully compliant with IEC60076 standards, flexible on capacity and voltage customization, widely adopted in thermal power plant, chemical plant and industrial self-provided power station to simplify power distribution design and save investment on expensive current-limiting reactors.
    Custom Oil Immersed Electric Furnace Transformer for Arc & Submerged Arc Smelting Plant
    Custom Oil Immersed Electric Furnace Transformer for Arc & Submerged Arc Smelting Plant
    Our electric furnace transformers are tailor-made for harsh smelting loads featuring wide-range multi-tap voltage adjustment to match varied melting processes. Designed with enhanced high-impedance structure, they effectively limit short-circuit surge current from frequent electrode contact and arc fluctuation, supporting 20% short-time overload operation without overheating. Winding adopts thick copper foil for low-voltage side to realize ultra-large output current while improving mechanical strength against periodic electromagnetic impact. Premium low-loss CRGO silicon steel reduces no-load loss and vibration noise. Multiple cooling modes including ONAN, ONAF and OFWF water cooling can be configured per site ambient condition. Complying with IEC60076 standards, all units pass full type tests, widely customized for steelmaking, ferroalloy, calcium carbide and heat-treatment industries with stable long-term continuous running performance.
    Custom Oil Immersed Electric Furnace Transformer for Arc & Submerged Arc Smelting Plant
    Our electric furnace transformers are tailor-made for harsh smelting loads featuring wide-range multi-tap voltage adjustment to match varied melting processes. Designed with enhanced high-impedance structure, they effectively limit short-circuit surge current from frequent electrode contact and arc fluctuation, supporting 20% short-time overload operation without overheating. Winding adopts thick copper foil for low-voltage side to realize ultra-large output current while improving mechanical strength against periodic electromagnetic impact. Premium low-loss CRGO silicon steel reduces no-load loss and vibration noise. Multiple cooling modes including ONAN, ONAF and OFWF water cooling can be configured per site ambient condition. Complying with IEC60076 standards, all units pass full type tests, widely customized for steelmaking, ferroalloy, calcium carbide and heat-treatment industries with stable long-term continuous running performance.
    Factory Custom Rectifier Transformer for Electroplating, Smelting & Chemical Industry Usev
    Factory Custom Rectifier Transformer for Electroplating, Smelting & Chemical Industry Usev
    Rectifier transformer is a dedicated special power transformer designed to match silicon rectifier or thyristor rectifier equipment, converting alternating current into stable direct current for industrial production. Unlike conventional distribution transformers for power grid distribution, rectifier transformers operate under serious harmonic interference, uneven load current and frequent surge current caused by rectifier circuit commutation. Its core design targets anti-harmonic performance, low output voltage ripple, strong overload resistance and stable long-running performance under non-sinusoidal working conditions, complying with IEC60076, GB/T10226 and related international industrial equipment standards. Jiangsu Tianhua specializes in full-series rectifier transformer R&D and production with decades of export experience, supplying both oil-immersed and dry-type structures to global industrial clients across metallurgy, chemical, electroplating, new material electrolysis, wastewater treatment and mining industries.
    The product capacity range covers dozens of kVA up to tens of thousands of kVA. Input high voltage options include 6kV,10kV,33kV,35kV, while secondary windings adopt multi-group split winding design commonly used for 6-pulse,12-pulse,24-pulse rectifier systems. More pulse numbers can effectively restrain input-side harmonic current and reduce power grid pollution, which becomes the mainstream configuration for large electrolysis and smelting projects. Cooling solutions include ONAN natural oil cooling, ONAF forced air cooling for oil type and AN/AF air cooling for dry type, selected based on site ambient temperature, installation environment and client’s equipment layout requirement.
    In recent years, global industrial upgrading accelerates the demand of high-performance rectifier equipment. Aluminium electrolysis, copper refining, rare earth electrolysis and new energy raw material production keep expanding in emerging markets of Southeast Asia, Middle East, Africa and Latin America, continuously boosting the order demand of customized rectifier transformers. Our factory supports full non-standard customization on rated capacity, input & output voltage, winding group number, pulse mode and installation dimension according to customers’ rectifier cabinet parameters and on-site workshop layout. Every finished rectifier transformer passes complete routine test, partial discharge test, harmonic simulation test and temperature rise test before leaving factory to eliminate potential hidden faults during continuous industrial production.
    Factory Custom Rectifier Transformer for Electroplating, Smelting & Chemical Industry Usev
    Rectifier transformer is a dedicated special power transformer designed to match silicon rectifier or thyristor rectifier equipment, converting alternating current into stable direct current for industrial production. Unlike conventional distribution transformers for power grid distribution, rectifier transformers operate under serious harmonic interference, uneven load current and frequent surge current caused by rectifier circuit commutation. Its core design targets anti-harmonic performance, low output voltage ripple, strong overload resistance and stable long-running performance under non-sinusoidal working conditions, complying with IEC60076, GB/T10226 and related international industrial equipment standards. Jiangsu Tianhua specializes in full-series rectifier transformer R&D and production with decades of export experience, supplying both oil-immersed and dry-type structures to global industrial clients across metallurgy, chemical, electroplating, new material electrolysis, wastewater treatment and mining industries.
    The product capacity range covers dozens of kVA up to tens of thousands of kVA. Input high voltage options include 6kV,10kV,33kV,35kV, while secondary windings adopt multi-group split winding design commonly used for 6-pulse,12-pulse,24-pulse rectifier systems. More pulse numbers can effectively restrain input-side harmonic current and reduce power grid pollution, which becomes the mainstream configuration for large electrolysis and smelting projects. Cooling solutions include ONAN natural oil cooling, ONAF forced air cooling for oil type and AN/AF air cooling for dry type, selected based on site ambient temperature, installation environment and client’s equipment layout requirement.
    In recent years, global industrial upgrading accelerates the demand of high-performance rectifier equipment. Aluminium electrolysis, copper refining, rare earth electrolysis and new energy raw material production keep expanding in emerging markets of Southeast Asia, Middle East, Africa and Latin America, continuously boosting the order demand of customized rectifier transformers. Our factory supports full non-standard customization on rated capacity, input & output voltage, winding group number, pulse mode and installation dimension according to customers’ rectifier cabinet parameters and on-site workshop layout. Every finished rectifier transformer passes complete routine test, partial discharge test, harmonic simulation test and temperature rise test before leaving factory to eliminate potential hidden faults during continuous industrial production.
    Custom Railway Traction Transformer for Electric Locomotive & Metro Train Projects
    Custom Railway Traction Transformer for Electric Locomotive & Metro Train Projects
    Railway traction transformer is the core onboard power conversion component installed on electric locomotives, metro trains, subway vehicles and high-speed EMUs. It undertakes the key function of stepping down high-voltage grid electricity from overhead contact lines into rated low voltage for traction motors, auxiliary air conditioning, braking systems, lighting and all onboard electrical equipment. Different from conventional power grid transformers fixed in substations, traction transformers work under extremely harsh operating environments including continuous vibration, frequent shock load, wide ambient temperature fluctuation and uneven bump during vehicle running. For this reason, the whole product design focuses on compact layout, shock resistance, low noise, high overload capacity and excellent environmental adaptability, strictly following international railway standards IEC60310, EN 60146 and relevant domestic railway industry specifications.
    As a professional Chinese manufacturer with long-term export experience in rail transit equipment, Jiangsu Tianhua develops full-series traction transformers covering AC-DC locomotive, AC transmission freight locomotive, urban metro, light rail and high-speed EMU applications. Our product capacity ranges from several hundred kVA up to thousands of kVA, matching input voltage of 25kV single-phase AC, 15kV AC and other customized input grades according to different national railway power supply systems worldwide. Cooling methods mainly include oil-natural cooling, forced air cooling and sealed fully-immersed cooling to adapt open-air vehicle bottom installation or internal cabinet layout. Each finished unit completes a full set of strict type tests before factory delivery to guarantee stable long-term operation under complicated railway working conditions.
    Global rail market demand keeps expanding in recent years. Many emerging countries are accelerating the construction of urban subway networks and trunk railway electrification transformation, which continuously boosts the market demand for reliable traction transformers. Our products have been exported to Southeast Asia, Middle East, Africa, Central Asia and Eastern Europe, widely used in urban rail upgrading projects and new railway line construction. We support fully customized design on rated capacity, voltage ratio, installation dimension, connection mode and protection configuration based on customers’ locomotive technical drawings and on-site operation environment.
    Custom Railway Traction Transformer for Electric Locomotive & Metro Train Projects
    Railway traction transformer is the core onboard power conversion component installed on electric locomotives, metro trains, subway vehicles and high-speed EMUs. It undertakes the key function of stepping down high-voltage grid electricity from overhead contact lines into rated low voltage for traction motors, auxiliary air conditioning, braking systems, lighting and all onboard electrical equipment. Different from conventional power grid transformers fixed in substations, traction transformers work under extremely harsh operating environments including continuous vibration, frequent shock load, wide ambient temperature fluctuation and uneven bump during vehicle running. For this reason, the whole product design focuses on compact layout, shock resistance, low noise, high overload capacity and excellent environmental adaptability, strictly following international railway standards IEC60310, EN 60146 and relevant domestic railway industry specifications.
    As a professional Chinese manufacturer with long-term export experience in rail transit equipment, Jiangsu Tianhua develops full-series traction transformers covering AC-DC locomotive, AC transmission freight locomotive, urban metro, light rail and high-speed EMU applications. Our product capacity ranges from several hundred kVA up to thousands of kVA, matching input voltage of 25kV single-phase AC, 15kV AC and other customized input grades according to different national railway power supply systems worldwide. Cooling methods mainly include oil-natural cooling, forced air cooling and sealed fully-immersed cooling to adapt open-air vehicle bottom installation or internal cabinet layout. Each finished unit completes a full set of strict type tests before factory delivery to guarantee stable long-term operation under complicated railway working conditions.
    Global rail market demand keeps expanding in recent years. Many emerging countries are accelerating the construction of urban subway networks and trunk railway electrification transformation, which continuously boosts the market demand for reliable traction transformers. Our products have been exported to Southeast Asia, Middle East, Africa, Central Asia and Eastern Europe, widely used in urban rail upgrading projects and new railway line construction. We support fully customized design on rated capacity, voltage ratio, installation dimension, connection mode and protection configuration based on customers’ locomotive technical drawings and on-site operation environment.
    S13-mrl Triangle Core Transformer
    S13-mrl Triangle Core Transformer
    S13-mrl Triangle Core Transformer
    ABOUT US​​​​​​​
    • Jiangsu Tianhua Transformer Co. Ltd. Is a high-tech enterprise specialized in the production, development and sales of transformers and related products. Company is located in the second largest city in Jiangsu province, national comprehensive transportation hub, east China important science and education, culture, finance, tourism, health care, convention and exhibition center, important economic, commercial and trade center in Jiangsu province, Xuzhou city, the Beijing-shanghai railway and the Longhai railway in this intersection, the Eurasian continental bridge traverses of Xuzhou, the transportation is extremely convenient.

      The total investment of the company is 258 million dollars, with registered capital of 130 million Yuan. The company has 270 employees, including 7 senior engineers.More than 110 senior technical personnel such as doctor and master degree.      ​​​​​​​
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    JIANGSU TIANHUA TRANSFORMER CO.,LTD.
    Since the company was founded, strictly follow the ISO9000 quality management system And provide customers with excellent quality products that meet the characteristics of each region.

    We cooperate with our customer with advanced technology, first-class equipment, excellent quality, satisfactory service and good reputation,seek common development, sincerely welcome people from all walks of life to come to my company to discuss cooperation, create brilliant!
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    NEWS
    20.08.2022
    news06.jpg
    The letter and number meaning of the transformer logo

    On the type, model, function in the transformer now have very big distinction, typically on the transformer logo distinguish all kinds of letters and Numbers, then the transformer logo on the letters and Numbers mean? Simple understanding.

    20.08.2022
    news05.jpg
    The letter and number meaning of the transformer logo

    On the type, model, function in the transformer now have very big distinction, typically on the transformer logo distinguish all kinds of letters and Numbers, then the transformer logo on the letters and Numbers mean? Simple understanding.

    20.08.2022
    news04.jpg
    How to do the maintenance of dry type transformer

    Dry type transformer in the process of running attention and maintenance is very important, to ensure that equipment normal operation, reduce the risk of accidents, so how do the running transformer maintenance? The following is a detailed introduction to jiangsu tianhua transformer co. ltd.

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      Golden City Community
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      Hefei Jinhua New World
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      Nanjing Olympic Center
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      Wuhan University
    • Xuzhou Olympic Center
      Xuzhou Olympic Center
    • POWER TRANSFORMER
    • DRY-TYPE TRANSFORMER
    • OIL IMMERSED TRANSFORMER
    • DISTRIBUTION TRANSFORMER
    Jiangsu Tianhua Transformer Co. Ltd. Is a high-tech enterprise specialized in the production, development and sales of transformers and related products.
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    OUR PRODUCTS
    S13-mrl Triangle Core Transformer
    S13-mrl Triangle Core Transformer
    3 Phase dry type Transformer, Three-phase Rectifier Transformer
    3 Phase dry type Transformer, Three-phase Rectifier Transformer
    oil Low Loss Power Transformer
    oil Low Loss Power Transformer
    6-10KV Class S11-22 Series Distribution Transformer
    6-10KV Class S11-22 Series Distribution Transformer
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