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Dual High Voltage Oil Immersed Transformer 11/20kV or 22/33kV for African Utility and Industrial Distribution

Product Summary

Designed for African power utilities, EPC contractors and industrial distribution projects, this dual high voltage oil immersed transformer provides flexible primary voltage selection for networks where two medium-voltage supply levels may be required. The dual-primary configuration helps operators ...

Key Attributes
Brand Name: TNNPI
Place of Origin: Henan, China
Certification: CE,UL,ISO
MOQ: 1 piece
Price: 650-18,000 / piece
Supply Ability: 5000pcs/year
Delivery Time: 7-14 work days
Payment Terms: L/C,D/A,D/P,T/T,Western Union
Standard Packaging: Export standard packaging
Product Custom Attributes
Highlight

11/20kV oil immersed transformer

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22/33kV industrial distribution transformer

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high voltage transformer with warranty

Capacity/KVA:
30kVA–2500kVA
Phase:
Three
Rated Frequency:
50Hz/60Hz
Ambient Temperature:
-25°C To +55°C
Application:
Utility / Mining / Industrial / Rural Electrification / Solar
Type Of Cooling:
ONAN/ONAF
Protection Degree:
IP54 / IP65
Standards:
IEC 60076 / IEC 62271 / IEC 61439
Customization:
Voltage, Capacity, Current, IP Rating, Color, OEM Logo
Enclosure:
Hermetically Sealed / Conservator Type
Installation:
Pole-mounted / Ground-mounted / Indoor / Outdoor
Product Description

Designed for African power utilities, EPC contractors and industrial distribution projects, this dual high voltage oil immersed transformer provides flexible primary voltage selection for networks where two medium-voltage supply levels may be required. The dual-primary configuration helps operators adapt to different grid conditions without replacing the transformer, making it suitable for infrastructure expansion, industrial parks and utility distribution systems.

Key Features

  • Dual HV windings or dual HV tapping arrangement for two selectable input voltage levels

  • Oil-immersed ONAN cooling for reliable continuous operation

  • Copper or aluminum windings available according to project requirements

  • Robust tank and radiator structure designed for outdoor installation

  • Factory-tested for insulation, ratio, winding resistance and load-loss performance

  • Customizable HV/LV voltage ratio, vector group, impedance and accessories

Typical African Applications

  • Utility distribution network upgrades

  • Industrial parks and manufacturing facilities

  • Commercial power distribution

  • Rural electrification projects with changing network voltage

  • EPC and turnkey power infrastructure projects

Typical Parameters

Item Typical Range
Rated Capacity 100–2500 kVA
HV 11/20 kV, 22/33 kV or customized
LV 0.4 kV / 0.415 kV
Frequency 50 Hz
Cooling ONAN
Vector Group Dyn11 / Yyn0 or customized

FAQ

Can two HV voltages be used on the same transformer?
Yes. The transformer can be engineered with two HV voltage levels according to the project design.

Can the transformer be supplied for 60 Hz systems?
Yes. Frequency can be customized according to the destination grid.

Can you provide drawings before ordering?
Yes. GA drawings, nameplate data and technical specifications can be prepared for project confirmation.

Overall Rating
5.0
Based on 50 reviews recently
Rating Snapshot
5
100%
4
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All Reviews
A
Arao Matssan from Mozambique
Apr 10.2025
Clean appearance, robust construction—a dependable brand.
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J
Julidon Systems from Nigeria
Jan 8.2025
Low failure rate, easy maintenance, and excellent value for money.
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M
Marc Edwin from United Kingdom
Jan 6.2024
Good product and communication.
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