Established in 1991 and headquartered in Jiangsu, China, Jiangsu Yuantong Electric has over 30 years of experience in designing and manufacturing power and distribution transformers. Our products include oil-immersed transformers, dry-type transformers, compact substations and special-purpose transformers. We offer customized solutions to meet project requirements, with power transformer capacities up to 1,000 MVA.
Oil-immersed power transformers for transmission substations, power plants and large industrial networks. We build 110 kV to 500 kV class units rated up to 1,000 MVA, designed to IEC or GB standards or to your project specification.
Fully sealed S-series oil-immersed distribution transformers for utility networks, industrial plants and renewable energy projects. Our 10 kV, 20 kV and 35 kV series cover 30 to 31,500 kVA, with voltage, vector group and accessories configured to your order.
SC(B) cast-resin dry-type transformers for commercial buildings, data centers, industrial plants and new-energy systems where indoor installation is required. Our 10 kV, 20 kV and 35 kV series cover 30 to 25,000 kVA.
Pole-mounted distribution transformers for overhead power lines, rural electrification and local utility networks. Voltage, rated capacity and mounting arrangement are configured to your network and installation requirements.
YB European-style and ZGS American-style box-type substations for urban distribution, industrial sites and renewable energy projects. Each unit combines medium-voltage switchgear, the transformer and low-voltage distribution for 10–35 kV systems from 30 to 4,000 kVA.
Special transformers and OEM/ODM builds to your voltage, capacity, vector group, cooling and nameplate requirements. We accept orders from a single unit, so you can test a sample before placing a project order.
Oil-immersed power transformers for transmission substations, power plants and large industrial networks. We build 110 kV to 500 kV class units rated up to 1,000 MVA, designed to IEC or GB standards or to your project specification.
Fully sealed S-series oil-immersed distribution transformers for utility networks, industrial plants and renewable energy projects. Our 10 kV, 20 kV and 35 kV series cover 30 to 31,500 kVA, with voltage, vector group and accessories configured to your order.
SC(B) cast-resin dry-type transformers for commercial buildings, data centers, industrial plants and new-energy systems where indoor installation is required. Our 10 kV, 20 kV and 35 kV series cover 30 to 25,000 kVA.
Pole-mounted distribution transformers for overhead power lines, rural electrification and local utility networks. Voltage, rated capacity and mounting arrangement are configured to your network and installation requirements.
YB European-style and ZGS American-style box-type substations for urban distribution, industrial sites and renewable energy projects. Each unit combines medium-voltage switchgear, the transformer and low-voltage distribution for 10–35 kV systems from 30 to 4,000 kVA.
Special transformers and OEM/ODM builds to your voltage, capacity, vector group, cooling and nameplate requirements. We accept orders from a single unit, so you can test a sample before placing a project order.

Silicon steel sheets are cut to size on an automatic cutting line for accurate core dimensions.

Transformer cores are stacked on an automatic line in our 53,000 m² intelligent factory.

Windings are produced in our coil winding workshop to each order's voltage and capacity.

Routine tests run in our in-house 220 kV test workshop, with 100% inspection before shipment.
We have exported transformers to more than 20 countries across Africa, the Middle East, Russia and Central Asia, South and Southeast Asia, and North America. Recent export records include 1,500 distribution transformers to Kenya and 330 units to Russia.
Get a Quote Within 24 Hours
Send us the capacity, voltage and standard you need. We reply with factory-direct pricing, technical data and an estimated lead time.
Our management systems are certified to ISO 9001, ISO 14001 and ISO 45001, our low-voltage products hold CE attestation, and we hold 22 invention patents.








In 2025, Jiangsu Yuantong Electric completed a new 53,000 m² intelligent transformer factory in Hai'an, Jiangsu. The factory...
We have supplied 150 transformers to Ethiopia, rated 1,250 to 6,300 kVA at 33/0.4 kV. These larger distribution...
We have supplied 1,500 distribution transformers to Kenya, rated 200 to 1,000 kVA and built for 33/0.42 kV...
In 2025, Jiangsu Yuantong Electric completed a new 53,000 m² intelligent transformer factory in Hai'an, Jiangsu. The factory...
Company News Project NewsWe have supplied 150 transformers...
Company News Project NewsWe have supplied 1,500 distribution...
Company News Project NewsJiangsu Yuantong Electric manufactures power and distribution transformers. Contact us for product specifications and quotations.
No. 68 Xiyuan Avenue, Hai'an Industrial Park, Hai'an, Jiangsu, China
Sales enquiries
tomhardy@jsytelectric.com
Mon–Sat 08:00–20:00 Beijing Time
Send us the capacity, voltage, quantity and destination country. Our team replies within 24 hours with a quotation and technical data.