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Bahasa IndonesiaTransformer Certifications & Technology
QUALITY & COMPLIANCE
Certified Quality, Standard-Based Design
Jiangsu Yuantong Electric holds ISO 9001, ISO 14001 and ISO 45001 management system certificates and CE attestation for low-voltage products. We design every transformer to IEC or GB standards, or to the standard named in your specification, and hold 22 invention patents.
COMPLIANCE MATRIX
Standards and Certificates by Product
Find the design standard and certificate that apply to the product in your project.
| Product line | Voltage / capacity | Design standard | Certificates | Efficiency |
|---|---|---|---|---|
| Power transformers | 110–500 kV · up to 1,000 MVA | IEC 60076 · GB | ISO 9001 | — |
| Oil-immersed distribution transformers | 10–35 kV · 30–31,500 kVA | IEC 60076 · GB | ISO 9001 | Level 1 / 2 / 3 |
| Dry-type transformers | 10–35 kV · 30–25,000 kVA | IEC 60076-11 · GB | ISO 9001 | Level 1 / 2 / 3 |
| Amorphous alloy transformers (SBH15) | 6–11 kV · 30–2,500 kVA | IEC 60076 · GB | ISO 9001 | Low no-load loss |
| Box-type substations | 10–35 kV · 30–4,000 kVA | IEC 62271-202 · GB | ISO 9001 | — |
| Switchgear | 0.4–35 kV | IEC 62271 / IEC 61439 · GB | ISO 9001 · CE | — |
| Pole-mounted transformers | Single / three phase | IEC 60076 · GB | ISO 9001 | — |
Standards shown are the default design basis. We also build to the standard named in your tender specification.
CERTIFICATES
Management System and Product Certificates
Click a certificate to enlarge it. Copies are available on request for your supplier qualification file.
ISO 9001
Quality management system
ISO 14001
Environmental management system
ISO 45001
Occupational health and safety management system
CE
Low Voltage and EMC directives
QUALITY CONTROL
How Quality Is Controlled on Every Unit
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- Winding resistance measurement
- Voltage ratio and vector group check
- Short-circuit impedance and load loss
- No-load loss and no-load current
- Applied and induced voltage withstand tests
- Routine test report for every unit
- Certificate of conformity
- Outline and nameplate drawings
- Installation and operation manual
- Packing list
ENERGY EFFICIENCY
Lower Losses, Lower Operating Cost
DESIGN CAPABILITY
How We Engineer Each Transformer
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PATENTS
Innovation Backed by Patents
22
Invention patents
QUALIFIED SUPPLIER
Trusted by China's Major Utilities
Our customers include State Grid, China Southern Power Grid and the five major power generation groups. We also export to more than 20 countries; see Projects & Export Markets.
DOWNLOADS
Documents for Your Supplier Qualification
Products, factory and projects
Certificate Copies & Test Reports
Available on request with your quotation.
FAQ
Certification Questions from Buyers
We design and test transformers to IEC standards such as IEC 60076 and IEC 60076-11, or to Chinese GB standards. If your tender names another standard, we build to that specification.
Our management systems are certified to ISO 9001, ISO 14001 and ISO 45001, our low-voltage products hold CE attestation under the Low Voltage and EMC directives, and we hold 22 invention patents.
Yes. We provide copies of our ISO certificates, CE attestation and company brochure on request, so you can add them to your supplier qualification file.
Customers are welcome to visit our factory in Hai’an, Jiangsu. Contact us to arrange a visit or pre-shipment inspection.