SG(B) Series Dry-Type Isolation Transformer
- Voltage
- Up to 660 V
- Rated Power
- Up to 3,000 kVA
- Standards
- GB, IEC, IEEE, UL, CE, ASTA
Data centers, precision electronic equipment, hospitals, laboratories.
RUIBIAN TRANSFORMER · JOINT VENTURE WITH EATON USARUIBIAN TRANSFORMER · JV WITH EATON USA
Power and distribution transformers and substations up to 138 kV.Power and distribution transformers and substations up to 138 kV. UL, CSA, IEEE, IEC, DEKRA, ASTA, CNAS certified. 20,000 MVA annual capacity.
Trusted by engineering teams at
Trusted by engineering teams at
Data centers, precision electronic equipment, hospitals, laboratories.
Commercial buildings, hospitals, airports, factories, data centers.
Utility distribution, industrial projects, renewable energy.
Utility distribution, large commercial, infrastructure.
Utility substations, large industrial facilities, renewable generation.
Industrial environments, mining, marine applications.
Commercial buildings, hospitals, airports, factories, residential areas, renewable energy projects, data centers.
Industrial distribution, rural networks, utility projects.
Urban and rural power distribution, industrial facilities, renewable integration, substations, transportation hubs, hospitals, large commercial complexes.
Regional substations, industrial parks, utility grids.
Transmission substations, large-scale renewable collector stations, utility grid projects.
Urban areas, commercial buildings, industrial users, renewable integration.
Residential neighborhoods, housing developments, light commercial loads, single-phase distribution networks.
Residential neighborhoods, housing developments, light commercial loads, three-phase distribution networks.
Distribution substations, renewable collector stations, industrial parks, commercial complexes.
Renewable energy projects, infrastructure projects, indoor and outdoor substations.
Utility-scale battery storage, containerized PV+ESS, integrated power conversion.
Renewable energy projects, infrastructure projects, wind and solar collector substations.
Urban distribution, industrial parks, utility distribution networks.
Large-scale battery storage, oil-immersed containerized solutions.
Pad-mounted energy storage, distributed PV+ESS, project sites.
No products match your filter.
From utility-scale solar plants to hyperscale data centers, our transformers serve the industries where reliability is non-negotiable.
Beyond ISO certifications, our products carry independent type-test and listing certificates from internationally accredited laboratories and bodies, accepted across the US, EU, MENA and APAC markets. Sample certificates below are publicly available; original documents on file and available under NDA.
From Nantong Ruibian in 2007 to a 138 kV-rated global supplier and joint venture partner with Eaton (USA) since 2023. We design, manufacture and verify power and distribution transformers and substations for utility, renewable, data center and industrial projects.
Founded, registered capital RMB 5.28M.
Built a 60,000 m² factory and added an oil-immersed transformer line.
Obtained the 110 kV type test report and entered the 110 kV supplier ranks.
First 110 kV class three-phase epoxy resin cast insulated dry-type power transformer in China.
New digitized and smart factory as a joint venture partner with Eaton (USA).
CNAS-accredited test center, type-tested by ASTA (UK) and DEKRA (Hungary).
Independently tested & listed by
CA · Mining
Rugged, enclosed power suited to a demanding mining environment.
US · BTC / Crypto Mining
High-density power for a continuous, high-load mining operation.
AE · Industrial / Plant
Uninterrupted, fire-safe indoor power for the plant's production loads.
KE · Utility Grid
Reliable distribution for the Kenyan utility network.
CN · Solar / PV
Expected annual DC-side generation of roughly 800 million kWh and about 600,000 tonnes of CO₂ avoided each year.
SA · Desalination
Reliable power for the desalination plant operating in a demanding desert environment.
MY · Data Center
The substations form the computing-power backbone of the data-centre campus and support Malaysia's broader AI-hub development.
Case Study · Mining
The Golden Mining project in Canada required robust, enclosed cast-resin transformers for a harsh industrial environment.
Supplied 13 sets of 1,500 kVA Cast Resin Transformers with IP44 enclosures, IEC 60076 certified by UL.
Rugged, enclosed power suited to a demanding mining environment.
Case Study · BTC / Crypto Mining
A large Bitcoin mining facility in the USA required high-density pad-mounted transformers for a continuous, high-load operation.
Supplied 30 sets of 3,250 kVA Pad Mounted Transformers rated 34.5/0.415 kV, IEEE C57 certified by UL.
High-density power for a continuous, high-load mining operation.
Case Study · Industrial / Plant
Project located at the UAE Middle East-Plant, an industrial power facility requiring cast-resin transformers for indoor installation.
Supplied 4 sets of 5,000 kVA Cast Resin Transformers rated 6.6/11 kV.
Uninterrupted, fire-safe indoor power for the plant's production loads.
Case Study · Utility Grid
Utility distribution project in Kenya, Africa, requiring oil-immersed transformers for the grid.
Supplied 8 sets of 1,600 kVA Oil Immersed Transformers rated 11/0.433 kV.
Reliable distribution for the Kenyan utility network.
Case Study · Solar / PV
A photovoltaic project in Hoboksar County, Tacheng, Xinjiang, with 2 million kilowatts total installed capacity (DC-side 616.07 MWp, AC-side 498.9 MW), adopting a "photovoltaic + ecological management" model to turn desertified land into green-energy generation.
Ruibian (Jiangsu) Electric Power Co., Ltd. supplied Compact Prefabricated Substations totalling 1,998 MVA (1.998 GVA), equipped with oil-immersed transformers — primary 36.5 kV / secondary 0.8 kV — compliant with IEEE/IEC standards.
Expected annual DC-side generation of roughly 800 million kWh and about 600,000 tonnes of CO₂ avoided each year.
Case Study · Desalination
Developed by the Saudi Arabian Gas Field Development Company, a key Saudi infrastructure project supporting gas-field production and local energy and water demand by converting seawater into usable freshwater for surrounding industrial production and water needs.
Ruibian (Jiangsu) Electric Power Co., Ltd. supplied 60 MVA of oil-immersed transformers (each up to 9,000 kVA, max primary side 34.5 kV), installed in harsh desert environments and compliant with IEEE/IEC/ANSI/NEMA standards.
Reliable power for the desalination plant operating in a demanding desert environment.
Case Study · Data Center
A data centre at Senai Tech Park in Johor, Malaysia, plans to expand capacity to 240 MW — a key driver for Malaysia to overtake Singapore in data-centre capacity and support global tech enterprises, accelerating Malaysia's rise as a Southeast Asian AI hub.
A subsidiary of Ruibian (Jiangsu) Electric Power Co., Ltd. supplied safe, reliable, stable Compact Prefabricated Substations equipped with oil-immersed transformers totalling 150 MVA.
The substations form the computing-power backbone of the data-centre campus and support Malaysia's broader AI-hub development.
Loading virtual tour…
The virtual tour could not be loaded.
Please check your connection, or open it directly.
Open virtual tour