Jiangsu, China · Transformer Manufacturer & Exporter
From 10 kVA distribution units to 2,500 kVA substation transformers, we manufacture to your voltage ratio, vector group and enclosure requirements — with ODM support, full customization and a minimum order quantity of just 10 units.
Product Range
Five product lines covering transmission, distribution and building-wire applications. Every line supports custom ratings, materials and enclosures.
Distribution and power transformers for utility, industrial and renewable projects.
Cast-resin and air-cooled units for indoor, fire-sensitive and commercial installations.
Prefabricated compact substations with MV switchgear and LV distribution integrated.
Compact overhead distribution units for rural networks and line extensions.
Single-core PVC-insulated building wire to the H07V harmonised standard.
Featured Products
Product photos are taken from our own production. Specifications shown are indicative — contact us for the full datasheet on any model.
Oil-Immersed Transformer
Three-phase oil-immersed distribution transformer for utility and industrial networks. Vector group, tap range and winding material customized to your specification.
Dry-Type Transformer
Fire-resistant, maintenance-light dry-type unit for indoor installations, commercial buildings, hospitals and renewable energy projects.
Box-Type Substation
Prefabricated substation combining transformer, medium-voltage switchgear and low-voltage distribution in a single weatherproof enclosure.
Pole-Mounted Transformer
Single- and three-phase overhead transformer for rural networks, line extensions and compact distribution points.
Oil-Immersed Transformer
Three-phase oil-immersed unit for distribution networks and industrial supplies, built with copper windings and ONAN cooling.
Cables & Wires
Single-core PVC-insulated copper building wire for fixed wiring in conduits, to the H07V European harmonised standard.
About Us
Nanjing Chaolian Yunhe Technology Co., Ltd. is a transformer and electrical equipment supplier based in Jiangsu, China. With more than 12 years of export experience and a registered capital of USD 364,000, we manufacture oil-immersed, dry-type, box-type and pole-mounted transformers for distributors, EPC contractors and industrial end users.
We work as an ODM partner rather than a catalogue seller: our engineering team adapts voltage ratios, vector groups, tap changers, winding materials and enclosures to your project requirements, and our QA/QC team verifies every unit before dispatch.
ODM support and full customization on electrical and mechanical parameters.
100% on-time dispatch rate and an average inquiry response time under one hour.
Supplier to Fortune 500 companies, with documented production and quality processes.
Minimum order quantity of 10 units, suitable for trial and project-based purchasing.
Casting, winding, vacuum drying, assembly and inspection — carried out in house at our facility in Jiangsu, China.
ISO 9001, ISO 14001 and ISO 45001 certified · certificates and type test reports available on request.
Contact
Tell us the rated capacity, voltage ratio and quantity you need. Our sales engineers reply within one working hour with pricing, lead time and the matching datasheet.
Business hours: Mon–Sat, 09:00–18:00 (GMT+8). For urgent technical questions, message us on WhatsApp for the fastest reply.