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MV&HV Transformers
  • S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies
  • S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies
  • S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies
  • S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies
  • S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies
  • S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies
S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies

S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies

$2200.00-$9600.00/ Set|1 Set/Sets(Min. Order)

Customization:

Customized logo（Min.Order: 1 pieces）
Customized packaging（Min.Order: 1 pieces）
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S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Voltage Conversion & Distribution: Converts and distributes power efficiently across multiple input voltages (up to 35KV) and output voltages (e.g., 400V, 220V), supporting diverse power requirements.
  • Frequency Adaptability: Operates seamlessly at 50Hz/60Hz frequencies, ensuring compatibility with global electrical standards.

Key features

  • 1. Material Technology: Fully Sealed Corrosion-Resistant Construction

    • With a fully sealed metal body (steel/aluminum) and protective coating, ensure long-term durability in outdoor and industrial environments. The design reduces moisture ingress by ~40% compared to open-frame transformers*, enhancing reliability in harsh conditions.

  • 2. Interactive Design: Multi-Voltage Terminal Flexibility

    • With customizable voltage terminals supporting 8 input/output configurations (e.g., 10kV/0.4kV, 35kV/400V), easily adapt to diverse industrial power requirements. Offers twice as many voltage options as standard models*, simplifying installation across grids.

  • 3. Performance Parameters: High-Efficiency Three-Phase Operation

    • With three-phase technology and 50/60Hz compatibility, achieve up to 98% power efficiency, reducing energy loss by ~25% versus single-phase alternatives*. Supports output voltages from 220V to 11kV, ensuring compatibility with heavy machinery and commercial loads.

  • 4. Scenario Solutions: Continuous Commercial Use Readiness

    • With a vented cooling system and robust insulation, sustain uninterrupted operation in factories and commercial facilities. Designed for 24/7 use, outperforming residential-grade transformers in thermal management and load capacity*.

  • 5. Certification Standards: CE-Compliant Safety Assurance

    • With CE certification, meet EU safety and environmental standards for power distribution. The sealed design and insulated components ensure compliance with industrial safety protocols, reducing risk of electrical faults.

Product details

S11 Three-Phase Oil Immersed PowerTransformer 850 KVA 20/0.4KV Multiple Output Voltages (10KV 35KV 6KV) 50Hz 60Hz Frequencies

The S11 Three-Phase Oil Immersed Power Transformer is a robust, high-efficiency solution for industrial and commercial power distribution. With a capacity of 850 KVA and support for 50/60Hz frequencies, it offers flexible voltage configurations (input: 35kV–6.3kV; output: 110V–11kV) and fully sealed construction for reliable operation in diverse environments.

Technical specifications

FeatureSpecificationBenefit
Coil StructureFully sealed constructionPrevents moisture ingress, ensuring long-term reliability in humid conditions.
Voltage FlexibilityInput: 35kV/12.47kV/10kV/6.3kV; Output: 110V–480V/10kVSupports multiple applications, from residential grids to industrial plants.
Frequency Compatibility50Hz/60HzAdapts to global power standards, minimizing retrofitting costs.
Safety ComplianceCE Certified, YNd11/Dyn11 vector groupsEnsures safe, efficient power distribution with industry-standard safety.
Cooling DesignOil-immersed with vented panelsEnhances heat dissipation for stable performance under high loads.

Customization guide

Adjustable parameters:

  • Voltage Ratings: Customize input/output voltages (e.g., 10kV/0.4kV or 6.6kV/0.38kV) to match grid requirements.
  • Frequency Settings: Optimize for 50Hz or 60Hz to align with regional power standards.
  • Output Configurations: Select from 8+ output voltages (e.g., 440V for motors, 480V for industrial equipment).

Get inspired

With its three-phase capability and wide voltage range, the S11 transformer is ideal for powering factories, commercial buildings, or renewable energy systems. Its fully sealed design and CE certification ensure compliance with global safety standards, while its adaptable specifications simplify integration into existing infrastructure.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
EfficiencyIEC 60076-7 Class 1+15% Energy savings+30% (Premium core)
Voltage Regulation±5%±3.5%±2.5%
Overload Capacity120% for 2h150% for 1h200% for 1h

Supplier's note

  1. Three Key Breakthroughs:

    • Fully Sealed Construction: Reduces maintenance by 40% compared to open designs.
    • Dual Frequency Support: Eliminates the need for separate transformers in mixed-standard regions.
    • Multi-Output Flexibility: Enables single-unit deployment for complex grid setups.

  2. Optimal Version Selection:

    • Base Model: Ideal for residential or small commercial sites requiring standard efficiency (e.g., 10kV/0.4kV distribution).
    • Advanced Model: Suited for industrial facilities needing low voltage regulation (e.g., data centers with 400V equipment).
    • Pro Model: Best for heavy-duty applications like mining or petrochemical plants, where 200% overload capacity ensures uninterrupted operation during peak demand.

With the Pro model’s 30% higher efficiency than industry benchmarks, you can reduce energy losses by 1,500+ kWh annually in large factories. Pair its high overload capacity with the Dyn11 vector group to minimize harmonic distortion in variable-speed motor systems.

Frequently asked questions

  • Which three-phase transformer model suits industrial facilities requiring multiple output voltages?

  • How do I maintain an oil-immersed transformer for long-term reliability?

  • What materials are used in the S11 transformer’s construction?

  • Can the S11 transformer be customized for 6.6KV input and 415V output?

  • Is the S11 transformer CE-certified for commercial use?

  • Does this transformer work on 60Hz frequency for North American grids?

  • How does the S11 handle multiple output voltages like 400V and 480V?

  • What safety features does the S11 transformer include?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Three-Phase Voltage RegulationIndustrial Power Distribution, Commercial BuildingsSupports 10KV-35KV input (IEC 60076-7) ▲▲▲ (Industry standard: 6.6KV max)Efficiently handles heavy machinery loads and large-scale power demands.Requires skilled technicians for high-voltage installation.
Dual-Frequency OperationGlobal Industrial Installations, Export Markets50/60Hz dual-frequency support (IEC 60076-7) ▲ (Industry standard: single frequency)Deployable in regions using either 50Hz or 60Hz grids.Slightly higher cost due to dual-winding design.
Sealed Coil DesignOutdoor Installations, Humid EnvironmentsFully sealed IP65-rated construction (IEC 60529) ▲▲ (Industry standard: IP54)Resists moisture, dust, and corrosion for harsh environments.Limited accessibility for maintenance (requires full disassembly).
Safety ComplianceEU Projects, Export MarketsCE-certified with IEC 61856 compliance ▲ (Industry standard: CE only)Meets stricter EU safety, efficiency, and environmental standards.Certification adds ~15% to production costs.
Multi-Voltage OutputMixed-Use Facilities, Rural Electrification8 output voltage options (IEC 60038) ▲▲▲ (Industry standard: 4 options)Adapts to diverse loads (e.g., residential, industrial, and grid connections).Complex wiring configurations increase installation time.
Custom Vector GroupingGrid Synchronization Projects, Data CentersYnd11/Dyn11 vector groups (IEC 60076-7) ▲ (Industry standard: Dyn11 only)Reduces harmonic distortion in balanced three-phase systems.Requires specialized engineering for optimal phase alignment.

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