Jiangsu Huachen Transformer Co., Ltd. (江苏华辰变压器股份有限公司; Shanghai stock code 603097) publishes oil-filled, dry-type and renewable-energy substation equipment. Its 2025 half-year disclosure gives family envelopes up to 25,000 kVA for 35 kV dry-type equipment, 63,000 kVA for the 110 kV oil-filled route and 300,000 kVA for 220 kV oil-filled equipment. Use those dated ranges to choose a product route, then request a model-specific schedule. The certificate records below keep management systems, product certification and laboratory records separate.
North of Qianjiang Road, east of Yinshan Road, Second Industrial Park, Tongshan Economic Development Zone, Xuzhou, Jiangsu
History
Established 2007; Shanghai main-board listing May 2022
Rating source
2025 half-year report, pages 12–13
Checked
4 November 2026
Oil-filled transformer in an outdoor substation.
01
Match the listed entity and the manufacturing scope
The 2025 annual report names Jiangsu Huachen, stock code 603097, and the Xuzhou registered and office address above. The manufacturer’s company history gives establishment in 2007 and listing in May 2022. Use the exact Chinese legal name in the quotation and supporting documents, including where a separately named subsidiary or package supplier performs part of the work.
The company sells both transformer components and integrated substations. A split-winding transformer is not the same supply scope as an inverter or converter step-up package: agree which transformer, switchgear, conversion equipment, controls, enclosure and commissioning work are actually included.
Voltage and capacity envelopes from the 2025 disclosure
The table transcribes product-family descriptions in the 2025 half-year report, pages 12–13. These are upper limits, not a claim that every intervening rating and voltage pairing is offered.
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Disclosed product route
HV / LV description
Rated-capacity envelope
Dry-type distribution
HV ≤35 kV; LV generally 0.4 kV
≤2,500 kVA
35 kV dry-type power transformer
HV 35 kV; LV 3.15–11 kV
≤25,000 kVA
Oil-filled distribution
HV ≤35 kV; LV generally 0.4 kV
≤2,500 kVA
110 kV oil-filled power transformer
HV 110 kV; LV 3.15–35 kV
≤63,000 kVA
220 kV oil-filled power transformer
HV 220 kV; LV 6.3–66 kV
≤300,000 kVA
The 2025 annual report also presents oil-filled equipment at 220 kV and below, but does not repeat this numerical capacity table. The half-year table remains a dated reference for the envelopes shown here. Request the current selected-model data sheet, frequency, tap range, connection group, cooling and insulation schedule rather than combining the largest values from unrelated families.
The 220 kV description includes vertical winding, vapour-phase drying and coil pressing. For procurement, connect those process statements to winding and drying records for the ordered equipment, dimensional control and the agreed inspection plan. They describe manufacturing methods, not the measured performance of a particular unit.
The product page labels it efficiency grade 1 and cites GB 20052-2020
Exact capacity, voltages, loss guarantees and applicable standard edition
S18 / S20 / S22 oil-filled families
The index labels these grades 3 / 2 / 1 respectively
Match the offered design and efficiency data; the series name is not a loss table
SZ13-20000/35
The 35 kV page names this prototype in a short-circuit-test statement
Obtain the report and identify the design correspondence to the offered 20,000 kVA, 35 kV unit
SF renewable double-split route
The page states voltage class 40.5 kV and below, with two LV branches
State branch ratings and operating arrangement; the page provides no numerical capacity envelope
The website is unversioned and some descriptions are abbreviated. Keep the series name, published family envelope and offered model as separate fields in the technical schedule. The SC(B)18 page’s reference to the 2020 efficiency standard is retained as a source detail; agree the edition and required performance for the destination project with the supplier.
For a double-split design, ask how the two LV branches are rated and operated when one branch is unavailable. Specify converter interfaces and relevant impedance conditions. For an integrated renewable package, also request a single-line diagram and itemised scope so that enclosure and switching equipment are priced on the same basis.
The following records belong to the listed issuer in the 2024 prospectus application, appendix of major certifications, printed pages 1-1-229 to 1-1-230. Dates are the disclosed dates.
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Record and issuer
Certificate number
Issued / stated end
Quality management; New Century Inspection and Certification
016XZ24Q32200R6L
2024-09-19 / 2028-10-13
Environmental management; New Century Inspection and Certification
016XZ24E31686R4L
2024-09-19 / 2027-09-24
Occupational health and safety; New Century Inspection and Certification
016XZ24S31576R4L
2024-09-19 / 2027-09-24
After-sales service; Beijing Huayuan Runze International Certification
639SC20240003R1S
2021-05-19 / 2027-05-17
Intellectual-property management; New Century Inspection and Certification
016ZB22EIP11103R1M
2022-09-23 / 2025-09-09 (expired)
Energy management; China Quality Certification Centre
00123En20006ROM/3200
2023-01-06 / 2026-01-05 (expired)
Ask for the current certificate before relying on any of these records. The two records marked expired are historical. The appendix also lists separately held subsidiary certificates, which are not assigned to the listed issuer here.
Ask for a current certificate and scope matching the manufacturer, production location and relevant activity. A management-system certificate covers organisational processes; ask separately for the product certificate and a model-specific test report.
Product certificate references require a matching annex
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Disclosed certification category
Selected certificate number
Issued / stated validity to
CQC Type II voluntary product certification
CQC2016010301853178
2022-07-19 / 2031-02-20
CQC Type II voluntary product certification
CQC2016010301859688
2022-07-19 / 2031-04-09
CQC Type II voluntary product certification
CQC21107298631
2022-07-19 / 2031-05-31
These are selected numbers from the same issuer-certification appendix, issued by China Quality Certification Centre. The appendix gives neither the covered product descriptions nor model annexes. Ask Huachen which products each number covers before using it to meet a tender requirement. Obtain the product name, model list and current status before using any number to satisfy a transformer requirement.
Trace the short-circuit claim to the actual report
Huachen’s 35 kV product page says an SZ13-20000/35 prototype passed a sudden short-circuit test at the National Transformer Testing Center. The page does not give the report number, test date or complete report. Treat this as a manufacturer-published test reference and request those documents for comparison with the offered design.
The company’s laboratory announcement dated 15 January 2026 describes CNAS recognition. It is a separate record: request the laboratory accreditation number and scope, then check that the required methods fall within that scope.
A practical inspection schedule connects the design to the serial-numbered unit: agreed losses and impedance, winding resistance and ratio, dielectric and other specified tests, inspection points and signed release documents. Include the report references, applicable standards and any witness requirements in the order, then use this platform’s RFQ to request the defined component or package.
Does 300,000 kVA apply to every Huachen transformer?
It is the upper envelope disclosed for the 220 kV oil-filled family in the 2025 half-year report. Distribution, 35 kV dry-type and 110 kV routes have separate envelopes.
Can the listed CQC numbers be used as transformer model certificates?
The prospectus appendix does not identify their covered products or models. Obtain the original certificate annex before matching a number to a transformer.
Are the old energy and intellectual-property certificates still current?
The disclosed records ended on 5 January 2026 and 9 September 2025 respectively. They are expired. Ask for the renewed certificate if your tender requires it.
What supports the SZ13-20000/35 short-circuit statement?
The manufacturer’s 35 kV product page names the prototype and testing centre. The report number, date and full report still need to be supplied for an order-specific check.
Before ordering, confirm in writing with the manufacturer: the certificate number and annex for your exact model, its current status, and the full type-test report. Images are generic illustrations.
Sources
9 sources · checked 4 November 2026
Prepared by PowerTransformerB2B. Checked 4 November 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] Company introduction and historyJiangsu Huachen · Manufacturer original
