ISO 9001:2015
Published quality-management certificate for the stated manufacturing scope.
Quality & Certifications
Transformer quality built on approved requirements and traceable records
Published evidence covers two management-system certificates, routine transformer testing and project-specific documentation control.
Verified management systems
Certificate references currently approved for publication
No additional accreditation, laboratory partnership or certification is claimed without a supporting document.
ISO 14001:2015
Published environmental-management certificate for the stated manufacturing scope.
Model- and project-specific proof
Certificates, declarations and test evidence must identify the applicable scope, transformer and revision.
Routine verification
Tests connected to the delivered transformer
The approved quotation and inspection plan define the final test scope. Published quality information includes the following routine checks.
Electrical identity
Ratio, polarity and winding resistance checks help verify the manufactured winding arrangement.
Insulation condition
Insulation resistance and agreed dielectric checks support the specified insulation system.
Performance values
Load-loss and other agreed measurements are recorded against the applicable rating and test basis.
Project records
Reports, nameplate data, drawings and manuals remain tied to the same delivered unit.
Quality evidence chain
What buyers should align before manufacturing
A certificate logo alone is not a complete acceptance package. The technical and quality records must refer to the same scope.
| Project stage | Record to approve | Purpose |
|---|---|---|
| Quotation | Technical data, deviations, guarantees and test scope | Establish one comparable basis |
| Engineering | Approved drawings, data sheet and document schedule | Freeze interfaces and review points |
| Manufacturing | Inspection plan and controlled revisions | Maintain traceability through production |
| Testing | Procedures, witness points and reports | Verify the agreed acceptance criteria |
| Delivery | Nameplate, manuals, certificates and final register | Connect the delivered unit to its records |
Publication boundary: ISO 45001, TÜRKAK, KEMA, university testing, type-test results or laboratory equipment are not stated until TZN supplies approved evidence for publication.
Request quality documentation for a transformer project.
Share your project requirements with the TZN engineering team.