Project Engineering Support
Get Your Project CAD Drawings in 24 Hours
Send your kVA rating, primary/secondary voltage, vector group, and foundation space constraints for an immediate engineering submittal.
Consultant & EPC Resource
Transformer CAD Drawings & Engineering Submittals
Certified 2D AutoCAD General Arrangement (GA) blueprints, foundation civil footprints, terminal bushing clearances, Single-Line Diagrams (SLD), and 3D STEP models for utility and industrial project submittals.
.DWG / .DXF
AutoCAD Formats
3D STEP
BIM & Layout Models
24 Hours
Submittal Turnaround
IEC 60076
Standard Compliance
Engineering Submittals & CAD Blueprints
2D General Arrangement (GA) Drawings & Electrical Schematics
XinHuan provides certified 2D AutoCAD General Arrangement (GA) blueprints, single-line diagrams (SLD), and 3D STEP models for engineering consultants, EPC contractors, and utility project approval submittals.
Oil-Immersed GA
Oil-Immersed 2D GA & Base Footprint
Front elevation, top plan view, radiator fin clearances, lifting lugs, oil drain valve, and bi-directional roller track dimensions.
IEC 60076-1
Get .DWG File
Cast Resin SCB14
Cast Resin Dry-Type Coil & Busbar GA
High-vacuum encapsulated epoxy resin coils, low-voltage copper terminal busbars, PT100 temperature sensor locations, and core clamps.
IEC 60076-11
Get .DWG File
IP20 / IP23 Enclosure
IP20/IP23 Protective Enclosure Blueprint
Laser-cut ventilation louvers, door swing clearances, safety interlock earthing straps, and top/bottom removable cable gland plates.
NEMA 1 / IP23
Get .DWG File
Core & Coil
Core Stacking & Internal Winding Blueprint
45-degree full miter step-lap silicon steel core joints, radial and axial clamping frames, and oil circulation ducts.
Step-Lap Core
Get .DWG File
Electrical SLD
Single-Line Diagram (SLD) & Vector Group
Standard Dyn11 / YNd11 vector group schematic, off-circuit tap changer (DETC ±2×2.5%) tap position matrix, and PT100 wiring layout.
Dyn11 / YNd11
Get .DWG File
Submittal Package
Complete Engineer Submittal Package
Multi-view engineering submittal sheet with standard title block, bill of materials (BOM), shipping weight schedule, and center of gravity.
.DWG / .DXF / .PDF
Get .DWG File
24-Hour Engineer Turnaround
Need Project-Specific AutoCAD (.DWG) or 3D STEP Drawings?
Our in-house engineering team generates customized General Arrangement (GA) drawings, foundation bolt templates, and terminal busbar extension details matching your exact project single-line diagram and substation civil clearance constraints within 24 hours.
Technical Standards & Architecture
What Is Included in a XinHuan Transformer Submittal Package?
Every project submittal drawing generated by XinHuan complies with international drafting standards (ISO 5456 / ANSI Y14.5) to ensure seamless review and fast sign-off by utility engineers and consulting firms.
1. Dimensional Views & Clearances
- Front elevation, side elevation, and top plan views
- High-voltage (HV) & low-voltage (LV) terminal bushing center-to-center phase clearances
- Overall physical envelope dimensions ($L \times W \times H$ mm)
- Safe electrical clearance radius to surrounding civil walls
2. Civil Foundation & Mounting Footprint
- Base channel mounting gauge (e.g. 550mm, 660mm, 820mm, 1070mm track pitch)
- Foundation anchor bolt hole coordinates and diameters
- Bi-directional roller wheel orientation (longitudinal / transverse)
- Jack lifting pads and top crane lifting lug load ratings
3. Electrical & Mechanical Schedule
- Vector group connection diagram (Dyn11, YNd11, Yyn0)
- Off-circuit / On-load tap changer switching table with % voltage steps
- Weight schedule: Core & coil weight, oil volume weight, total shipping weight
- Bilingual rating plate legend and terminal marking nomenclature
Consultant Submittal & Approval Process
1
RFQ & SLD Review
Client provides single-line diagram and tender technical specifications.
2
2D CAD Generation
XinHuan engineering team prepares full-scale 2D AutoCAD GA drawings within 24h.
3
Consultant Review
Submittal package submitted to project owner / consulting engineer for review.
4
Revision & Sign-Off
Rapid markups and final approval stamp before production cutting.
5
CNC Manufacturing
Laser cutting and core winding executed directly from approved CAD models.
Technical Questions
Frequently Asked Questions — Transformer CAD Drawings
Yes. For retrofit and substation replacement projects, we frequently customize high-voltage and low-voltage bushing heights, phase center-to-center spacing, cable box orientations (top, bottom, or side entry), and terminal flag drilling patterns to achieve 100% drop-in alignment with existing civil busbars and cable trenches.
Yes. In addition to 2D AutoCAD (.DWG / .DXF) files, we export 3D solid STEP (.stp) and IGES (.igs) files that can be directly imported into Autodesk Revit, Navisworks, SolidWorks, and Bentley Substation software for 3D clash detection and spatial clearance verification.
Simply submit your project single-line diagram (SLD) and tender technical requirements via our online RFQ portal or email [email protected]. Our engineering department will assign a dedicated design engineer and supply the full submittal package (GA drawing, electrical schematic, loss guarantee sheet, and type test certificates) within 24 hours.