MANUFACTURER PROFILE

Wujiang Transformer Co., Ltd.

An equipment portfolio spanning AC power transformers, DC converter duties and reactors, with a documented Wujiang manufacturing expansion.

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Wujiang Transformer, also known as Wubian, is based in Suzhou's Wujiang District. Its published equipment range brings together large AC power transformers, converter transformers and reactors rather than a single distribution-transformer series. The English catalogue separates 1000 kV, 500 kV and 220 kV oil-immersed equipment. For a buyer, the useful starting point is the network function: transferring AC power, interfacing with a DC converter, or supplying a reactor duty requires different design schedules and acceptance documents.

Chinese entity: 吴江变压器有限公司
Location: Wujiang District, Suzhou, Jiangsu
Company history: Origin in 1970; present name recorded in 2013
Equipment routes: AC power, converter transformers and reactors
Independent anchor: Wujiang government construction report, May 2023

Match the Wujiang entity to the proposed equipment

The company identifies its origin in 1970. Its Chinese history records a January 2013 change from Wujiang Transformer Factory Co., Ltd. to the present company name. The official contact location is No. 18 Wubian Avenue, Friendship Industrial Zone, Songling Town, Wujiang District. A May 2023 local-government construction report identifies Wujiang Transformer Co., Ltd. at that same address, providing a separate dated reference to the business and manufacturing project.

The Chinese introduction describes a wider transmission-and-distribution portfolio, including converter transformers, reactors, traction and renewable-energy transformer categories, prefabricated substations and switching equipment. Keep the contracting manufacturer and the equipment family explicit in the proposal. A transformer offer and a complete substation package need different interface drawings and responsibility schedules, even when both appear in one company's introduction.

References: [1] [2] [4]

Three catalogue routes, three different specification discussions

Scroll sideways to compare all columns.

Published route	What the page establishes	What belongs in the enquiry
1000 / 500 / 220 kV oil-immersed catalogue	Separate AC transformer equipment entries	Winding ratings, required capacity, taps, cooling schedule and transport arrangement
Converter-transformer portfolio	A distinct DC-converter equipment family in the Chinese introduction	Converter configuration, insulation duty, harmonic requirements and the project test schedule
Reactor portfolio	A separate equipment family, also named in the government manufacturing-project record	Reactor function, voltage, reactive-power duty and the required acoustic and electrical tests

The English product centre has separate 1000 kV, 500 kV and 220 kV oil-immersed transformer entries. These are catalogue headings; they do not provide an interchangeable matrix of every capacity, winding connection and cooling arrangement. The Chinese homepage additionally displays named configurations including ODFPS-1000000/1000 and ZZDFPZ-415000/500-800. Treat those as specific published references, not a guarantee that all ratings are available in all constructions.

For a large AC transformer, make the single-phase or three-phase arrangement and the number of windings explicit. For converter equipment, supply the converter-system requirements before using an AC catalogue reference to shortlist a design. Reactor procurement needs its own duty schedule rather than a transformer loss-comparison form. This separation gives the manufacturer a specific engineering question and avoids comparing unlike proposals.

References: [1] [2] [3]

What the 2023 factory report says—and where its evidence ends

Wujiang District's May 23, 2023 report describes a digital manufacturing-project expansion at the Wubian Avenue site. Its stated production scope was AC power transformers up to 1000 kV, DC converter transformers up to ±800 kV and shunt reactors up to 1000 kV. At the time of reporting, the building's steel structure was under construction. The report gave an expected November 2023 start of use; that expectation is a project milestone, not proof of commissioning.

Use this dated report to frame a factory-review discussion: which production building would handle the proposed order, which equipment has actually entered service, and where would the acceptance tests take place? The answer should identify the facilities available for your contract. This page does not turn projected annual output or planned workshop dimensions into present guaranteed manufacturing capacity.

Report date: 23 May 2023
Reported phase: Steel-structure construction
Expected use date in report: November 2023; not a commissioning record

References: [4]

Construction details help define the review, not replace guarantees

The English 220 kV catalogue description discusses core joints, winding support and drying, rigid positioning of the active assembly, lead connections and a vacuum-strength tank design. These details provide practical topics for an engineering review of that equipment entry. They should not automatically be attributed to the 1000 kV family, converter equipment or every design the company might propose.

Ask the engineering submission to connect the proposed construction to the agreed mechanical, dielectric and thermal requirements. Transport restraints and site assembly are especially worth defining before a large unit is priced: the delivered scope must be clear about the main body, accessories, on-site work and the drawings needed for installation. Agree which inspection points are witnessed and which records accompany the equipment serial number.

References: [2]

Compare the order's losses and test scope

The reviewed material does not establish a condition-matched no-load-loss, load-loss or impedance row for the buyer's proposed order. A catalogue phrase such as low loss is not a numerical guarantee. Request the rating schedule with the guaranteed values, applicable reference temperature, tap position, cooling duty and agreed test method. Only then use the platform's loss-cost comparison for like-for-like operating cases.

The company history mentions earlier quality-system and laboratory milestones. Such historical entries do not establish a current accreditation scope for every test. Ask for the applicable documents and the issuing body's current scope for the tests required by the contract. Separate design-review evidence, routine tests, type tests and any project-specific special tests in the inspection plan, with acceptance criteria and document delivery dates agreed before the order.

References: [1] [2]

BEFORE YOU REQUEST A QUOTATION

A project brief the factory can respond to

Use this list to prepare your requirements. Checking an item only marks your preparation on this page.

0 of 6 items prepared

Choose AC power transformer, converter transformer or reactor duty before setting the comparison criteria.Provide winding/voltage requirements, capacity or reactive-power duty, taps and cooling conditions.Include converter-system requirements where applicable, rather than reusing an AC-only schedule.Define transport limits, site access, accessory scope and installation responsibilities.Request order-specific loss/impedance guarantees and their reference conditions.Agree the factory-review, testing, witnessing and handover-document schedule through this platform.

Prepare an RFQ for Wujiang Transformer Co., Ltd.

Questions buyers ask

Is a 1000 kV catalogue entry a complete specification?

No. It identifies an equipment class. Capacity, winding arrangement, voltage ratio, taps, cooling, losses and project interfaces still belong in the proposed rating schedule.

Does the government factory report prove the expansion was commissioned?

It describes construction progress in May 2023 and an expected completion milestone. Obtain a current facility and test arrangement for the intended order; the report is not a commissioning record.

Can a converter transformer be compared directly with an AC power transformer?

Keep the duties separate. Provide the converter-system and insulation requirements for converter equipment, then compare proposals with the same technical basis.

Which information is most useful before discussing losses?

Specify the equipment function and ratings, operating duty and required reference conditions. Ask for guaranteed no-load/load losses and impedance for that exact proposed design, rather than inferring them from a voltage-class heading.

Sources

4 sources · checked 12 October 2026

Prepared by PowerTransformerB2B. Checked 12 October 2026. The sources below identify the published company information and any dated public records used for this profile.

Company catalogues describe product families and options. Before you order, ask the manufacturer for the type-test report and acceptance documents for your exact model and rating.

[1] Chinese company introduction and historyWujiang Transformer · Manufacturer original
[2] English catalogue and contact detailsWujiang Transformer · Manufacturer original
[3] 1000 kV oil-immersed catalogue headingWujiang Transformer · Manufacturer original
[4] Wujiang digital UHV factory construction progress, May 2023Wujiang District Government; Taihu New Town Management Committee · Government original