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MV&HV Transformers
  • YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price
  • YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price
  • YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price
  • YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price
  • YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price
  • YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price
YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price

YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price

  • >= 1 Sets
    $1,166

Customization:

Customized logo（Min.Order: 1 pieces）
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YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Voltage Conversion: Efficiently steps down high-voltage inputs (35kV/11kV) to a standardized 11kV output, enabling seamless power distribution in complex electrical systems.
  • Three-Phase Design: Supports industrial-grade power requirements with a three-coil layer structure, ensuring stable and reliable performance under heavy loads.
  • ONAN Cooling System: Utilizes oil-immersed natural cooling (ONAN) for optimal heat dissipation, maintaining efficiency even in high-power scenarios.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a corrosion-resistant metal body and oil-immersed cooling system, you can ensure long-term durability and safety in harsh industrial environments. The robust steel construction and protective paint coating provide 20% better resistance to environmental wear compared to standard transformers*.

  • 2. Modular Design for Versatile Connectivity

    • With a layered coil structure and multiple high-voltage bushings, you can easily adapt to complex power distribution systems. The design allows seamless integration with existing infrastructure, saving 30% more installation time than non-modular models*.

  • 3. High-Capacity Performance for Heavy-Duty Use

    • With a maximum capacity of 2000kVA and voltage conversion from 35kV/11kV to 11kV, you can handle large-scale power demands efficiently. This outperforms mid-range transformers by supporting up to 4x higher load capacities*.

  • 4. Space-Saving Compact Design

    • With an optimized ONAN (Oil Natural Air Cooled) system and industrial-grade compact build, you can save 25% more space than traditional oil-immersed transformers*. Ideal for power substations and commercial facilities requiring efficient spatial utilization.

  • 5. Compliance with Safety and Efficiency Standards

    • With design adherence to international safety protocols (e.g., IEC/IEEE standards), you can ensure reliable operation in medium/high-voltage applications. The transformer’s grounding and overcurrent protection features meet or exceed industry safety benchmarks*.

Product details

YAWEI Stepdown Transformer 3 Phase 11kv 22kv 35kv 100kva 200kva 400kva 2000kva Oil Immersed Power transformers Price

The YAWEI Stepdown Transformer is a robust medium-voltage solution designed for efficient power conversion in industrial and utility applications. With a compact design and oil-immersed cooling (ONAN), it supports voltage transformation from 35kV/11kV input to 11kV output, offering capacities from 100kVA to 2000kVA. Its three-phase layer coil structure ensures high reliability and thermal stability, while corrosion-resistant steel construction and advanced insulation systems enhance longevity in harsh environments.

Technical specifications

FeatureSpecificationBenefit
Voltage RatingInput: 35kV/11kV; Output: 11kVFlexible integration into existing grids
Power Capacity100kVA – 2000kVAScalable for diverse application needs
Cooling MethodONAN (Oil Natural Air Cooling)20% faster heat dissipation vs. traditional models
Coil ConfigurationThree-phase layer coilEfficient power distribution and low losses
Insulation ClassF (155°C) standard, customizable up to C (230°C)Triple the industry-standard thermal endurance
MaterialCorrosion-resistant steel casingEnsures durability in outdoor environments

Customization guide

Adjustable parameters include:

  • Voltage Ratings: Customize input/output voltages (e.g., 22kV/6.6kV) for grid compatibility.
  • Cooling Systems: Upgrade to ONAF (forced air) for high-temperature environments.
  • Insulation Class: Enhance to Class C for extreme thermal or chemical exposure scenarios.

Get inspired

Ideal for substations, industrial plants, and commercial complexes, the YAWEI Stepdown Transformer balances compactness with high capacity. With its oil-immersed design and robust construction, it ensures seamless power distribution while minimizing maintenance downtime.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Power Capacity100kVA – 500kVA630kVA – 1600kVA2000kVA
Efficiency98%99%99.5%
Insulation ClassF (155°C)H (180°C)C (230°C)*
Cooling EfficiencyStandard ONANEnhanced airflowDual ONAN/ONAF

Supplier's note

  1. Technical Breakthroughs:

    • Pro Model’s Class C Insulation: Triple the industry-standard thermal tolerance, enabling operation in extreme environments (e.g., desert substations).
    • Advanced Efficiency: 99% efficiency reduces energy losses by 15% compared to legacy models.
    • Dual Cooling (Pro): Combines ONAN and ONAF modes for 30% faster heat dissipation in peak loads.

  2. Version Selection Guide:

    • Base Model: Best for small-scale industries or commercial buildings requiring up to 500kVA.
    • Advanced Model: Ideal for medium-sized factories or data centers needing 630kVA–1600kVA with enhanced thermal resilience.
    • Pro Model: Tailored for large utilities or heavy industries demanding 2000kVA capacity and extreme durability (e.g., petrochemical plants).

With the Pro Model’s Class C insulation, you can safely operate in environments exceeding 200°C. Its dual cooling system ensures uninterrupted performance even during prolonged peak loads.

Frequently asked questions

  • Which YAWEI stepdown transformer model is best for small industrial facilities requiring 100kVA?

  • How often should the oil in a YAWEI 3-phase oil-immersed transformer be checked?

  • What are the advantages of layer coils over disc coils in YAWEI's 35kV transformers?

  • Can YAWEI customize voltage ratings for 22kV input in their 400kVA transformers?

  • Is the YAWEI 11kV output transformer certified to IEC 60076 standards?

  • How does the ONAN cooling method in YAWEI 3-phase transformers improve efficiency?

  • What safety features does the YAWEI 35kV stepdown transformer include for high-voltage applications?

  • Are YAWEI 2000kVA transformers suitable for large-scale commercial power substations?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage HandlingIndustrial power distributionIndustry Standard: 35kV (IEC 60076-1)
Our Base: 35kV (IEC 60076-1)
Our Advanced: 35kV + 5% overload tolerance (IEC 60076-7)		▲ Advanced handles peak loads without derating.
Meets global utility standards.		Base lacks overload tolerance; unsuitable for surge-heavy environments.
Cooling EfficiencyHigh-temperature substationsIndustry Standard: 200W/m² heat dissipation (IEC 60076-7)
Our Base: 220W/m² (ONAN)
Our Advanced: 280W/m² (ONAF▲)		▲ Advanced uses Forced Air Cooling (ONAF) for dense urban deployments.Base may require additional cooling in extreme heat.
Noise LevelUrban commercial areasIndustry Standard: 70 dBA (IEC 60099-1)
Our Base: 68 dBA (IEC 60099-1)
Our Advanced: 62 dBA▲ (with sound-dampening fins)		▲ Advanced reduces noise by 14% vs. Base.
Complies with city noise ordinances.		Base may require acoustic barriers in residential zones.
Material DurabilityCoastal or industrial zonesIndustry Standard: Mild steel (ASTM A36)
Our Base: Galvanized steel (ASTM A123)
Our Advanced: 304 Stainless Steel▲ (ASTM A240)		▲ Advanced resists corrosion 3x longer in harsh environments.Base may rust over time in salt-heavy atmospheres.
Space EfficiencyCompact substationsIndustry Standard: 1.5m² footprint (IEC 60076-2)
Our Base: 1.2m²▲
Our Advanced: 0.9m²▲▲ (stackable design)		▲▲ Advanced saves 40% space vs. Base.
Ideal for urban retrofitting.		Base requires more floor space in constrained sites.
Customization FlexibilityTailored grid projectsIndustry Standard: Fixed voltage ratios
Our Base: 2 voltage adjustments (IEC 60076-9)
Our Advanced: 5+ adjustments▲ + digital monitoring		▲ Advanced supports dynamic grid integration (e.g., renewable energy mixes).Base lacks real-time monitoring for complex systems.

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