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Hunan Hentg Power Electric Technology Co., Ltd.

  • China,Changsha ,Hunan
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China IEC 60076 Standard 30 kVA 50 kVA 20/0.4 kV Step Down Oil Immersed Transformer
China IEC 60076 Standard 30 kVA 50 kVA 20/0.4 kV Step Down Oil Immersed Transformer

  1. China IEC 60076 Standard 30 kVA 50 kVA 20/0.4 kV Step Down Oil Immersed Transformer
  2. China IEC 60076 Standard 30 kVA 50 kVA 20/0.4 kV Step Down Oil Immersed Transformer

IEC 60076 Standard 30 kVA 50 kVA 20/0.4 kV Step Down Oil Immersed Transformer

  1. MOQ: 1
  2. Price:
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Payment Terms Western Union,T/T,D/P,D/A,L/C
Delivery Time 25
Packaging Details wooden
Product name Three Phase Transformer
Vector Connection Ynd11
Winding Material Copper/Aluminum
Quality High-quality
Number Of Phase THREE
Frequency 50 /60Hz
Brand Name HENTGPOWER
Model Number S11-80-20/0.4
Certification ICE60076
Place of Origin China

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  1. Product Details
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Product Specification

Payment Terms Western Union,T/T,D/P,D/A,L/C Delivery Time 25
Packaging Details wooden Product name Three Phase Transformer
Vector Connection Ynd11 Winding Material Copper/Aluminum
Quality High-quality Number Of Phase THREE
Frequency 50 /60Hz Brand Name HENTGPOWER
Model Number S11-80-20/0.4 Certification ICE60076
Place of Origin China
High Light IEC 60076 Oil Immersed TransformerIndustrial Power Supply Oil Immersed Transformer50 kVA Oil Immersed Transformer
IEC 60076 Standard 30 kVA 50 kVA 20/0.4 kV Step Down Oil Immersed Transformer for Industrial Power Supply
Product Overview

Our 50 kVA Oil-Immersed Distribution Transformer is engineered to deliver stable, high-efficiency power for industrial and commercial applications. Built strictly according to IEC 60076 standards, this step-down transformer converts 20kV medium voltage to 0.4kV usable low voltage. It is designed for longevity, featuring high-grade mineral oil insulation and a robust tank structure suitable for continuous outdoor operation.

Key Features
  • High Efficiency & Low Loss: Utilizes high-permeability silicon steel sheets to minimize no-load losses and optimize energy savings for industrial plants.
  • Superior Thermal Management: Optimized oil-flow design ensures efficient heat dissipation, preventing overheating even in high-ambient temperature regions.
  • Robust Insulation System: High-quality cellulose insulation and vacuum-dried coils ensure a long service life and high dielectric strength.
  • Weather-Resistant Durability: The tank surface is treated with anti-corrosion coatings, making it ideal for harsh outdoor environments.
Technical Specifications
FeatureSpecifications
Rated Capacity50 kVA
StandardIEC 60076
Voltage Ratio20 / 0.4 kV (Customizable)
Phase3-Phase
Frequency50 / 60 Hz
Cooling MethodONAN (Oil Natural Air Natural)
Vector GroupDyn11 / Yzn11
Tapping Range±2x2.5% (Off-circuit tap changer)
Insulation ClassClass A
Winding MaterialHigh-conductivity Copper or Aluminum
Specialized Solutions for High-Dust & Arid Regions

Operating electrical equipment in sandy and dusty environments presents significant operational challenges. We have engineered specific features to mitigate leakage and contamination risks:

Dust Accumulation on Bushings

Our Solution: We utilize high-creepage distance porcelain bushings that prevent flashover caused by conductive dust layers. Optional protective covers are available for extreme sandstorm areas.

Oil Leakage due to Seal Degradation

Our Solution: We use High-Grade Fluoro-rubber Gaskets (Viton) instead of standard nitrile rubber. These seals maintain elasticity under extreme UV exposure and high temperatures, effectively preventing oil seepage.

Corrosion from Sand Scouring

Our Solution: The transformer tank undergoes a multi-layer powder coating process (C4 or C5 class anti-corrosion), ensuring the protective layer remains intact despite the abrasive nature of blowing sand.

Frequently Asked Questions
Does this 50 kVA transformer comply with local African grid standards?

Yes, our transformers are designed per IEC 60076, which is the primary reference for most African utilities. We can also customize the vector group and voltage taps to match specific local grid requirements.

How do you ensure the transformer survives during shipping to inland African projects?

We use reinforced steel-framed packaging and vacuum-sealed protection. For EPC projects, we provide detailed impact monitoring to ensure the core remains stable during rough inland transit.

What is the lead time for bulk orders for rural electrification projects?

For standard 50 kVA units, we maintain a steady production cycle of 3–4 weeks. We offer flexible shipping schedules to meet tight EPC project deadlines.

Do you provide after-sales support or spare parts for maintenance?

Absolutely. We provide a full set of replacement gaskets, bushings, and oil level indicators. We also offer remote technical guidance for installation and commissioning.

Can the 20kV primary voltage be adjusted?

Yes, the transformer is equipped with an off-circuit tap changer (OCTC), allowing for voltage adjustments of ±5% to accommodate fluctuations in the supply line.

Contact our engineering team today for a rapid quote and full technical datasheet!

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2011

  • Total Annual:

    300-500MVA

  • Employee Number:

    150~200

  • Ecer Certification:

    Verified Supplier

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Get in touch with us

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  • Hunan Hentg Power Electric Technology Co., Ltd.
  • Room905, D6 building, CCSP Industrial Park, Yuelu District, Changsha,Hunan province, China
  • https://www.hentgpower.com/

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