2500 kVA Three-Phase Pad-Mounted Transformer (ANSI C57.12.20)
Compact Substations Pad-Mounted Transformers SKU: 2500KVA_34.5KV_THREE_PHASE_PAD_MOUNTED_TRANSFORMER

2500 kVA Three-Phase Pad-Mounted Transformer (ANSI C57.12.20)

Factory-direct 2500 kVA pad-mounted transformer engineered to ANSI C57.12.20 standards, ideal for underground distribution. Benefit from competitive pricing and reliable lead times directly from our ISO-certified Chinese manufacturing facility.

Standards
IEC • ANSI • GB
Quality Inspection
100% FAT Routine Tested
Engineering Submittal
2D CAD / SLD Available
Request Factory Quote Request CAD / Submittal Drawing

Engineering Datasheet & Technical Parameters

Factory Standard
Rated Capacity 2500
Primary Voltage 34.5 kV primary / 480Y/277 V secondary (customizable)
Secondary Voltage 480Y/277 V, 208Y/120 V
Standards Compliance ANSI C57.12.20, IEEE, NEMA
Cooling Type ONAN
Configuration Dead-front, Loop feed / Radial feed
Vector Group Dyn11 (or as specified)
Frequency 60 Hz (ANSI) / 50 Hz (IEC)
Efficiency Level 99.2%
Impedance (%Z) 5.75%
Insulation Class Class A (65°C average temperature rise)
Enclosure Rating NEMA 3R / IP54 Tamper-Resistant Steel Enclosure
Voltage 34.5 kV primary / 480Y/277 V secondary (customizable)
Kva 2500
Standard ANSI C57.12.20, IEEE, NEMA
Cooling ONAN
Efficiency 99.2%
Impedance 5.75%

Application Scenarios

  • Commercial centers, solar PV collector substations, EV fast-charging hubs, and industrial parks.

Features

  • Dead-front cabinet design with compartmentalized HV and LV sections for maximum operator safety.
  • Bay-O-Net expulsion fuses with current-limiting backup fuses for robust overcurrent protection.
  • Corrosion-resistant NEMA 3R enclosure with tamper-proof penta-head locking hardware.

Standards

  • 100% Factory Acceptance Testing (FAT) including voltage ratio, dielectric withstand, and winding resistance.

100% Factory Acceptance Testing (FAT) Protocol

CNAS Certified

Every unit manufactured by XinHuan undergoes mandatory routine factory testing prior to container dispatch. Full certified test submittal reports are provided with commercial documentation:

1. Insulation Resistance (Megger HV/LV to Earth)
2. Voltage Ratio & Vector Displacement Check
3. Winding DC Resistance (All Taps)
4. Short-Circuit Impedance & Load Loss at 75°C
5. No-Load Loss & Excitation Current Test
6. Power-Frequency AC Voltage Withstand Test
7. Lightning Impulse Voltage Withstand (BIL)
8. Partial Discharge (<5pC) & Gas/Oil Seal Inspection

Export Packaging & Seaport Logistics

Global CIF Shipping

Export seaworthy packaging with vacuum moisture barrier, desiccants, and reinforced steel-framed containment. Typical production lead time: 4–6 weeks from drawing approval.

Production Lead Time
4 to 6 Weeks from Drawing Approval
Export Packaging
Steel-Framed Crate & Vacuum Moisture Barrier
Transit Routes
Direct Routes to Chancay, Callao, Lagos, Manila

Equipment Video Inspection 100% Tested

Watch factory routine testing & quality control inspections.

Product Identification

Status Published
Product Part ID 2500KVA_34.5KV_THREE_PHASE_PAD_MOUNTED_TRANSFORMER
Last Revision Date 2026-08-24 23:55:52
XinHuan 2500 kVA Three-Phase Pad-Mounted Transformer (ANSI C57.12.20) Substation 2D AutoCAD General Arrangement Drawing
Engineering Submittal Drawing

2D AutoCAD General Arrangement (GA) Drawing & Footprint

Official XinHuan factory 2D vector General Arrangement drawing for 2500 kVA Three-Phase Pad-Mounted Transformer (ANSI C57.12.20). Includes front elevation view, top plan view, terminal center-to-center distances, mounting hole footprint, and complete vector group connection diagram.

Dimensions ($L \times W \times H$ mm)
Terminal Centerline Clearances
Base Channel Mounting Footprint
Vector Group & Rating Plate Title Block
Request CAD Submittal (.DXF / .PDF) Factory Quality Inspection

Internal Component Engineering Anatomy

High-precision 3D engineering cutaway model illustrating the core, windings, insulation, conservator tank, and protection accessories.

Oil-immersed transformer internal 3D cutaway model
High-Grade Silicon Core / VCB Tank
Electrolytic Copper Windings
De-Energized / OLTC Tap Changer
Multi-Protection Relay Sensor Port

Engineering & Procurement FAQs

Please specify rated capacity (kVA), primary/secondary voltages, frequency (50/60Hz), standard (IEC/ANSI), cooling type, site altitude, and target destination port.

Manufactured and tested in strict accordance with ANSI C57.12.20, IEEE, NEMA. Certified factory routine test report (FAT) provided with every unit. Third-party inspection (SGS/BV) supported.

Standard manufacturing lead time is 4 to 6 weeks following approval of GA blueprints and single-line diagrams. Direct sea container shipping is available under FOB, CFR, or CIF terms with full customs documentation (Bill of Lading, Certificate of Origin, Test Reports).