Oil Immersed vs Dry Type Transformer for Indoor Projects
Engineering Intent
Indoor projects often prefer dry type transformers for fire safety, but oil immersed transformers may still be considered in dedicated rooms or outdoor areas.
This article is written for engineers, EPC buyers and procurement teams who need to turn oil immersed and dry type transformer comparison into a clear technical request instead of a vague product inquiry.
Key Selection Data
| Item | Data to Confirm |
|---|---|
| Check 1 | Fire-risk policy |
| Check 2 | Indoor or outdoor location |
| Check 3 | Capacity and loss target |
| Check 4 | Maintenance capability |
Standards and Evidence to Request
- IEC 60076 series
- IEC 60076-11 for dry type
- Local fire and building codes
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
- Ignoring building fire policy
- Comparing prices without enclosure and civil cost
- No maintenance plan for oil equipment
RFQ Checklist
- State installation location
- Confirm fire-safety requirement
- Request dry and oil alternatives if acceptable
- Compare total installed cost
Related Product Paths
Ziyao Power can review the single-line diagram, load schedule, panel drawing or tender sheet and convert the requirement into a practical quotation package.
Download This Guide as PDF
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