Transformer Routine Test Report Checklist

Engineering Intent

Routine test reports are key evidence that the transformer shipped matches the approved electrical design.

This article is written for engineers, EPC buyers and procurement teams who need to turn transformer routine test report into a clear technical request instead of a vague product inquiry.

Key Selection Data

Item	Data to Confirm
Check 1	Winding resistance
Check 2	Voltage ratio and vector group
Check 3	Insulation resistance
Check 4	Applied and induced voltage tests

Standards and Evidence to Request

• IEC 60076 routine test requirements
• IEC 60076-11 for dry type tests
• Factory quality inspection procedure

For project approval, request a technical datasheet, outline drawing, wiring or terminal diagram where applicable, routine test report and nameplate information before shipment.

Common Specification Mistakes

• Accepting photos instead of test values
• No serial number match
• No nameplate review before shipment

RFQ Checklist

1. Request routine test report
2. Request nameplate draft
3. Confirm witnessed test if needed
4. Check serial number before shipping

Related Product Paths

• Power Transformers
• Dry-Type Transformer Guide
• Transformer Selection Guide Download

Ziyao Power can review the single-line diagram, load schedule, panel drawing or tender sheet and convert the requirement into a practical quotation package.