All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
Alibaba
Electrical Equipment & Supplies
Medium & High Voltage Products
MV&HV Transformers
  • 3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer
  • 3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer
  • 3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer
  • 3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer
  • 3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer
  • 3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer
3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer

3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer

$830.00-$10000.00/ Piece|1 Piece/Pieces(Min. Order)
View product details

3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High Voltage Step-Down Conversion: Efficiently reduces input voltages (10kV, 11kV, 35kV, 69kV) to lower output voltages (10kV/11kV), enabling safe power distribution for industrial and commercial systems.
  • Three-Phase Power Distribution: Designed for balanced power delivery in three-phase systems, ensuring stable energy flow with a DYN11 vector group configuration to minimize harmonics and enhance efficiency.
  • Toroidal Core Design: Compact, low-loss construction maximizes energy efficiency while reducing electromagnetic interference and noise.

Key features

  • 1. Corrosion-Resistant Steel Construction

    • With a corrosion-resistant steel body and high-conductivity copper windings, ensure long-term durability and up to 20% lower energy loss compared to conventional transformers.

  • 2. Tool-Free Maintenance Design

    • With a hinged maintenance cover and tool-free access, reduce servicing downtime by up to 30% for quick repairs and inspections.

  • 3. High-Capacity Performance

    • With a 3150 KVA capacity and support for 50/60Hz frequencies, handle high-power demands more efficiently than standard models, ideal for industrial applications.

  • 4. Outdoor-Ready Reliability

    • Designed for outdoor use with weatherproof enclosures and cooling fins, ensure reliable operation in harsh environments and continuous power distribution for commercial needs.

  • 5. Enhanced Safety Compliance

    • Equipped with a surge arrester and grounding system, exceed safety standards for high-voltage applications, offering superior protection against voltage surges compared to basic models.

Product details

3150 Kva 3 Mva High Voltage Toroidal Step Down Transformer Oil 69kv Transformer

The 3150 KVA 3 MVA High Voltage Toroidal Step Down Transformer is a robust power distribution solution designed for industrial and commercial applications requiring precise voltage regulation and high reliability. Built with a toroidal core configuration and advanced cooling systems, it efficiently handles high voltages (up to 69kV) while minimizing energy loss. Its weatherproof enclosure and surge protection features make it ideal for outdoor environments, ensuring safe and stable power delivery in demanding scenarios.

Technical specifications

FeatureSpecificationApplication Scenario
Material ConstructionSteel core with copper windingsIndustrial power distribution systems
Cooling SystemAluminum cooling fins with forced airHigh-temperature environments (e.g., factories)
Voltage HandlingInput: 6.3–69kV; Output: 10–11kVSubstation power transformation
Frequency Compatibility50/60HzGlobal industrial and utility applications
Vector GroupDYN11Balanced three-phase power distribution
Surge ProtectionIntegrated surge arresterLightning-prone regions or grid instability areas

Customization guide

Adjustable parameters include input/output voltage ratings (6.3–69kV) and frequency settings (50/60Hz) to meet specific grid requirements. Custom windings and insulation classes can also be tailored for extreme environmental conditions.

Get inspired

With its toroidal design and DYN11 vector group, this transformer ensures minimal harmonic distortion and optimal power factor, making it perfect for data centers, mining operations, or large-scale manufacturing facilities.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
KVA Rating2500 KVA3150 KVA4000 KVA
Efficiency97.2%+15% (98.3%)+30% (99.1%)*
Insulation ClassF (155°C)H (180°C)C (220°C)
Cooling CapacityNatural airForced airHybrid liquid/air

Supplier's note

  1. Key Technical Breakthroughs:

    • DYN11 Vector Group: Reduces neutral current by 50% compared to traditional designs, enhancing grid stability.
    • Surge Arrester Integration: Offers 3x higher voltage withstand capability than industry benchmarks, safeguarding against lightning strikes.
    • Toroidal Core Design: Achieves 20% lower energy loss than conventional transformers, improving efficiency in high-load scenarios.

  2. Optimal Version Selection:

    • Base Model: Ideal for small-to-medium industrial plants or rural grids requiring up to 2500 KVA.
    • Advanced Model: Best for mid-sized factories or commercial complexes needing 3150 KVA with enhanced cooling for 24/7 operations.
    • Pro Model: Tailored for large-scale industries (e.g., mining, petrochemicals) demanding ultra-high efficiency and extreme temperature resilience.

*Pro Model efficiency gains validated against IEC 60076-7 standards.

Frequently asked questions

  • Which high voltage transformer model suits industrial power distribution needs?

  • How to maintain the cooling fins of a 3150 KVA toroidal step-down transformer?

  • Toroidal core vs conventional core: Which is better for reducing energy loss in 69kV transformers?

  • Can the 3150 KVA 3 MVA transformer be customized for specific voltage requirements?

  • Is the 3150 KVA transformer’s material compliant with safety standards?

  • Does the 3150 KVA transformer support 11kV and 35kV input for flexible power distribution?

  • Is the 3 MVA toroidal transformer suitable for both 50Hz and 60Hz systems?

  • How does the toroidal step-down design enhance efficiency in high-voltage applications?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage Handling CapacityIndustrial Power GridsIndustry: ≤35kVBase: 35kVAdvanced: 69kV▲ (IEC 60076-5)
Frequency CompatibilityGlobal InstallationsIndustry: 50Hz onlyBase/Advanced: 50/60Hz▲ (IEC 60034-1)Enables deployment in regions with varying grid frequencies.
Cooling EfficiencyHigh-Load Industrial SitesIndustry: Basic oil coolingBase: Aluminum fins (IEC 60076-7)Advanced: Enhanced fins + thermal sensors▲ (ISO 1454-2)
Surge ProtectionLightning-Prone AreasIndustry: No surge arresterBase: 10kA surge protection (IEC 61643-1)Advanced: 20kA▲ (UL 1449)
Vector Group ConfigurationHarmonic-Intensive EnvironmentsIndustry: YND11Base/Advanced: DYN11▲ (IEC 60076-7)Reduces harmonic distortion for stable power quality.
Material DurabilityHarsh Outdoor EnvironmentsIndustry: Standard steelBase: ASTM A36 steelAdvanced: ASTM A572 Grade 50▲ (higher tensile strength)

Related searches

wooden accent chairwoody floral perfumemodern office deskluxury watch boxmodern wood door design nature veneerFord Transit GPS navigationwrought iron flower standShenzhou13 rocket blocksoutdoor HVAC systemjeweled double wall tumblerwaterproof kids silicone watchwired mouse and keyboard setiron oxide brown pigmentoil pressure sensordubery sports sunglasses polarized sunglasses fishing

The Product Description is generated by third-party, and Alibaba.com is not liable for any risks related to inaccuracies or the infringement of third-party rights.

The information in this Product Description may differ from the details on the product listing page on Alibaba.com. Additionally, the contents may not be updated in real-time with the product listing page on Alibaba.com, and there may be delays in reflecting the most updated information. The description on product listing page takes precedence. You shall not rely on this Product Description in making transaction decisions.

The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.