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Oil-Immersed Transformers
Distribution & Power Transformers
SKU: 5000KVA_33KV_HIGH_ALTITUDE_MINING_TRANSFORMER
5000 kVA 33 kV High Altitude Mining Power Transformer (Oil-Immersed, Three-Phase)
Factory-direct 5000 kVA mining power transformer engineered for high-altitude applications up to 4000m. Robust design with enhanced cooling and insulation for reliable performance in harsh mining environments.
Compliance Standards
IEC • ANSI • IEEE • GB
Quality Inspection
100% FAT Routine Tested
Engineering CAD
2D CAD / SLD Schematics
Global Logistics
Direct Seaport CIF Export
Engineering Datasheet
Technical Parameters & Ratings
IEC / ANSI Certified
Factory Standard
| Rated Capacity | 5000 kVA (ONAN) / 6300 kVA (ONAF Forced Air) |
|---|---|
| Primary Voltage | 33 kV / 34.5 kV (Delta, BIL 170 kV) |
| Secondary Voltage | 4.16 kV / 6.6 kV / 13.8 kV / 400 V (Star with Neutral) |
| Frequency | 60 Hz (Latin America / USA) / 50 Hz (IEC Standard) |
| Vector Group | Dyn11 / YNd11 |
| Altitude Rating | Designed for High-Altitude Andean Mining (>3,500m to 4,800m ASL) |
| Cooling Type | ONAN / ONAF (Liquid Immersed with Radiators & Forced Air Fans) |
| No-Load Losses (Po) | 3.8 kW (High-Grade Silicon Steel Step-Lap Core) |
| Load Losses (Pk at 75°C) | 38.5 kW (100% Electrolytic Oxygen-Free Copper) |
| Short-Circuit Impedance (%Z) | 6.5% standard (tolerance ±10%) |
| Insulation Fluid | Mineral Oil (IEC 60296 Class II) / FR3 Synthetic Ester Optional |
| Bushings Creepage Distance | Extra-High Creepage (>31 mm/kV) Anti-Pollution Porcelain Bushings |
| Tank Construction | Heavy-Duty Corrugated Conservator Tank with C5M Anti-Corrosion Marine Paint |
| Protection Devices | Buchholz Relay, Magnetic Oil Level Gauge (MOG), WTI & OTI with Alarm Contacts, Pressure Relief Device |
| Standards Compliance | IEC 60076, ANSI/IEEE C57.12.00, OSINERGMIN / CNE (Peru SEIN Grid Compliant) |
Application Scenarios
- Andean copper, zinc & gold mining site substations, utility intake, heavy industrial smelting mills, and solar farm collector stations.
Features
- Specially engineered high-altitude insulation and extended bushing creepage preventing flashover at low atmospheric pressures up to 4,800m ASL.
- 100% Electrolytic oxygen-free copper windings with stepped mitered silicon steel core, delivering ultra-low loss and superior short-circuit dynamic withstand.
- Full instrumentation suite including double-float Buchholz relay, dial-type oil/winding thermometers with microswitches, and rapid pressure relief valve.
Standards
- 100% Factory Acceptance Testing (FAT) including power-frequency withstand, lightning impulse, partial discharge (<5pC), and CNAS routine test submittals.
Engineering Submittal Drawing
2D AutoCAD General Arrangement (GA) Drawing & Footprint
Official XinHuan factory 2D vector General Arrangement drawing for 5000 kVA 33 kV High Altitude Mining Power Transformer (Oil-Immersed, Three-Phase). Includes front elevation view, top plan view, terminal centerline clearances, base channel mounting footprint, and complete vector group connection schematics.
Dimensions ($L \times W \times H$ mm)
Terminal Centerline Clearances
Base Channel Mounting Pitch
Vector Group & Rating Plate
XinHuan Hefei Manufacturing Plant — Precision Winding & Assembly Line
Factory Build Quality
Internal Construction & Premium Materials
Built with tier-1 certified raw materials engineered for long operational life (>30 years), superior dielectric withstand, and high short-circuit withstand capacity.
Silicon Steel Core
High-grade grain-oriented cold-rolled silicon steel with step-lap mitered joints for low $P_o$ losses.
100% Copper Windings
Electrolytic oxygen-free copper with high thermal grade insulation for surge resistance.
Precision Tap Changer
De-energized tap switch ($\pm 2 \times 2.5\%$) or on-load vacuum tap changer (OLTC) optional.
Protection & Sensors
Buchholz gas relay, magnetic oil gauge (MOG), and dial thermometers with alarm contacts.
Quality Assurance
CNAS & ISO 9001 Certified
100% Factory Acceptance Testing (FAT) Protocol
Every transformer unit manufactured by XinHuan undergoes mandatory routine factory testing prior to container dispatch. Full certified routine and type test submittal reports are provided with commercial documentation:
1. Insulation Resistance
Megger test (HV to LV, HV to Earth, LV to Earth) >1000 MΩ.
2. Voltage Ratio & Vector
Turns ratio check across all taps with phase displacement check.
3. Winding DC Resistance
Precision Kelvin bridge measurement across all tap positions.
4. Short-Circuit Impedance
Load loss ($P_k$) measurement corrected to reference temp (75°C).
5. No-Load Loss & Current
Core excitation test ($P_o$ and $I_o$) at rated sinusoidal voltage.
6. AC Voltage Withstand
Power-frequency separate source test (e.g. 50kV/70kV 1 min).
7. Lightning Impulse (BIL)
Full wave & chopped wave impulse withstand (BIL up to 170kV).
8. Partial Discharge & Seals
Ultra-low discharge (<5 pC) and pressurized oil/gas tightness test.
Logistics Intelligence
Global CIF / FOB Delivery
Export Packaging & Seaport Logistics
Export seaworthy heavy-duty structural steel transport skid with vacuum nitrogen blanketing and moisture-proof barrier. Direct ocean freight delivery to Port of Chancay & Callao (25-35 days).
Production Lead Time
Standard manufacturing cycle is 4 to 6 weeks from approval of GA blueprints and single-line diagrams.
Heavy-Duty Export Packaging
Vacuum moisture barrier preservation, nitrogen blanketing, and reinforced steel-frame structural crate skids.
Direct Seaport Routes
Fast ocean freight to Port of Chancay & Callao (25-35 days), Manila, Lagos, and Middle East ports.
Equipment Video Inspection
100% TestedWatch XinHuan technicians perform routine dielectric testing, winding insulation checks, and quality inspections inside our Hefei manufacturing plant.
Every unit 100% routine tested before container loading.
Direct Factory Consultation
Need Custom Project Engineering?
Send your single-line diagram (SLD), voltage ratings, or tender specifications. Our chief electrical engineers will review and issue an actionable CIF quotation within 24 hours.
Custom Voltage Ratios
High-Altitude Derating
Short-Circuit Impedance
Third-Party FAT Witness
Engineering & Procurement FAQs
Frequently asked questions regarding specifications, certifications, and delivery for 5000 kVA 33 kV High Altitude Mining Power Transformer (Oil-Immersed, Three-Phase).
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 accordance with IEC 60076, ANSI/IEEE C57.12.00, and Peruvian CNE/OSINERGMIN standards. Certified routine test reports (FAT) and type test documentation provided with every unit.
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).