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Ref: XH-SUB-2026-0461
XINHUAN Submittal Package
Anhui XinHuan Electrical Power Equipment Co., Ltd. | Hefei Manufacturing Base
CNAS Test Certified | ISO 9001:2015 | ISO 14001:2015 Registered OEM
SUBMITTAL REF: XH-SUB-2026-0461
Date: 2026-10-09
Standard: IEC 60076 / GB/T 1094 / ANSI C57
Compact Substations

31.5 MVA 110kV Semi-Trailer Mounted Mobile Transformer Substation

Submittal Specification Datasheet & Engineering Technical Parameters

1. Electrical Technical Parameters & Ratings

Parameter Specification Design Rating & Certified Value
Rated Capacity 31.5 MVA (31,500 kVA)
Primary Voltage (HV) 110 kV (±2×2.5% OLTC / OCTC)
Secondary Voltage (LV) 10.5 kV / 33 kV
Rated Frequency 50 Hz / 60 Hz
Cooling Type ONAN / ONAF (Automated Forced Air)
Vector Group YNd11 / YNyn0
HV Switchgear 110kV SF6 Gas-Insulated Switchgear (GIS, 31.5kA)
MV Switchgear 10kV / 33kV Metal-Clad Vacuum Switchgear (KYN28 / YRM6)
Transport Chassis Heavy-Duty Multi-Axle Semi-Trailer with Hydraulic Stabilizers
Control Enclosure Walk-In IP54 Microclimate Cabin with SCADA & RTU
Standards Compliance IEC 60076, IEC 62271-200, IEC 62271-202, IEEE C57.12

2. 2D AutoCAD General Arrangement (GA) Drawing & Dimensional Profile

2D AutoCAD Blueprint
Figure 2.1 — 2D AutoCAD Dimensional Submittal Schematic

Dimensional & Installation Requirements

  • Foundational Base: Steel channel Skid / Sub-station Pad Mounting.
  • Bushings Orientation: HV top-mounted / side-cabinet entry option.
  • Grounding Terminals: Dual M12 copper grounding pads on diagonal corners.
  • Enclosure Protection: IP54 Outdoor Corrosive C4/C5 Marine Paint Coating.
  • CAD Drawing File: Request `.DXF` or `.DWG` blocks from sales engineering.

3. Factory Acceptance Testing (FAT) & Routine Test Protocol

Every transformer manufactured by XinHuan undergoes 100% routine inspection in accordance with IEC 60076-1 before dispatch. Routine test certificates are included in the shipment package.

1. Winding Resistance Measurement (HV & LV)
2. Voltage Ratio & Vector Group Phase Displacement
3. Short-Circuit Impedance & Load Loss Test
4. No-Load Loss ($P_o$) & Excitation Current Test
5. Separate-Source AC Dielectric Withstand Test
6. Induced Overvoltage Withstand Test (DVWV)
7. Insulation Resistance & Polarization Index (Megger)
8. Hermetic Tank Pressure Leakage & Oil BDV Test

4. Seaport Logistics, Packaging & Warranty Terms

Export Packaging
IPPC fumigated solid wooden crate skid with vacuum moisture foil barrier.
Primary Delivery Ports
CIF Chancay, Callao, Apapa, Mombasa, Manila, Jakarta, Santos, & Valparaiso.
Factory Warranty
36 Months Full Replacement / Factory Engineering Warranty against defects.
Anhui XinHuan Electrical Power Equipment Co., Ltd.
Factory Address: Industrial Park, Hefei City, Anhui Province, China | Export Dept: [email protected]
Submittal Document Code: XH-SUB-2026-0461 — Confidential Technical Datasheet