Quality & documentation

Confidence comes from the right evidence.

Define the specification, inspection scope and documents your project requires — then assess the proposed equipment against them.

Project documentation

Ask for the documents that match the model.

The company brochure contains historical certificates, model registrations and test materials. Current documents, their validity and their scope must be confirmed for the exact model and destination requirements.

  • Technical scheduleProposed rating, voltage ratio, losses, insulation and other agreed characteristics.
  • Test documentationRequest the relevant reports and agree any inspection or witnessed testing requirements.
  • Model evidenceCheck that registration, assessment or approval materials cover the proposed equipment.
  • Compliance scopeConfirm the applicable standards, editions and destination-market requirements.
  • Installation documentsAgree drawings, connection information and operation documentation for the order.
Transformer testing equipment from the YUYUAN company brochure

Inspection planning

Make acceptance criteria part of the enquiry.

Specify the checks and documents your engineering team, utility or local authority will need. If witnessed testing, a third-party inspection or a particular report format is required, include it before the technical agreement is finalised.

Discuss inspection requirements

Useful answers

Before you specify.

Can I request certificates and test reports?

Yes. Ask for documents for the proposed model and rating. Confirm their validity, scope and relevance to your destination and application before placing an order.

Does a brochure certificate apply to every transformer?

No. Certificates, registrations and reports can be limited to a model, rating, facility, date or defined scope. Assess the actual document against the proposed equipment.

Which standard will the transformer follow?

The applicable standard and edition should be stated in the technical agreement. Provide any utility specification and destination-market requirements with your enquiry.

Talk to YUYUAN

Your project starts with the right questions.

Send the voltage ratio, required capacity and site conditions. Let’s define the transformer around your application.

Request a technical proposal