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Oil Immersed Transformer

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Low Loss Hermetically Sealed Oil Filled Step-Up Transformer 0.69kV to 35kV High Voltage Power Distribution Transformer with Off-Circuit Tap Changer

Quality Low Loss Hermetically Sealed Oil Filled Step-Up Transformer 0.69kV to 35kV High Voltage Power Distribution Transformer with Off-Circuit Tap Changer factory
Quality Low Loss Hermetically Sealed Oil Filled Step-Up Transformer 0.69kV to 35kV High Voltage Power Distribution Transformer with Off-Circuit Tap Changer factory
Quality Low Loss Hermetically Sealed Oil Filled Step-Up Transformer 0.69kV to 35kV High Voltage Power Distribution Transformer with Off-Circuit Tap Changer factory
Quality Low Loss Hermetically Sealed Oil Filled Step-Up Transformer 0.69kV to 35kV High Voltage Power Distribution Transformer with Off-Circuit Tap Changer factory
Quality Low Loss Hermetically Sealed Oil Filled Step-Up Transformer 0.69kV to 35kV High Voltage Power Distribution Transformer with Off-Circuit Tap Changer factory

Low Loss Hermetically Sealed Oil Filled Step-Up Transformer 0.69kV to 35kV High Voltage Power Distribution Transformer with Off-Circuit Tap Changer

Product Summary

Key Highlights Heavy-Duty Industrial Reliability: Reinforced mechanical and thermal design built for fluctuating loads in metallurgical, mining, and chemical processing facilities. Fully Sealed & Maintenance-Free: Corrugated tank absorbs oil thermal expansion without an expansion tank (conservator), ...

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
Capacity/KVA:
100 KVA – 10,000 KVA (10 MVA)
Low Voltage (Input):
0.4 KV, 0.48 KV, 0.69 KV, 0.8 KV, 1.14 KV
High Voltage (Output):
6.3 KV, 10 KV, 11 KV, 13.8 KV, 22 KV, 33 KV, 35 KV
Rated Frequency:
50Hz/60Hz
Application:
Utility Grid And EPC Projects
Type Of Cooling:
ONAN (Natural Oil Air) / ONAF (Forced Air)
Standards:
IEC 60076 / IEC 62271 / IEC 61439
Customization:
Voltage, Capacity, Current, IP Rating, Color, OEM Logo
Vector Group:
Dyn11 / YNd11 / YNyn0
Winding Material:
High-Conductivity Electrolytic Copper / High-Grade Aluminum
Insulation Class:
Class A (Mineral Oil) / Class F/H (Ester Fluid/High Temp)
Product Description

Key Highlights

  • Heavy-Duty Industrial Reliability: Reinforced mechanical and thermal design built for fluctuating loads in metallurgical, mining, and chemical processing facilities.
  • Fully Sealed & Maintenance-Free: Corrugated tank absorbs oil thermal expansion without an expansion tank (conservator), preventing moisture and oxidation ingress.
  • Flexible Voltage Regulation: Equipped with multi-step off-circuit tap changers (OCTC: ±2×2.5% or ±5%) to compensate for fluctuating grid voltages.

Target Applications

  • Heavy manufacturing, steel mills, mining, and chemical plants
  • Harbor cranes, port facilities, and remote power transmission
  • Industrial cogeneration, waste-to-energy, and local grid feeding

Custom Engineering & Capabilities

  • Wide Voltage Range: Primary 0.4kV / 0.69kV / 1.14kV stepped up to 6kV / 10kV / 20kV / 35kV.
  • Environmental Adaptation: Options for IP54 protective enclosures, pressure relief valves, gas relays, and cold-climate oils (-40°C).
  • High-Altitude Design: Enhanced creepage distance available for altitudes exceeding 2,000m.

Standards & Quality Assurance

  • Fully compliant with IEC 60076 and national industrial power codes.
  • Robotic automated tank welding and vacuum oil-filling guarantee zero leakage.
  • Full-lifecycle technical support from engineering calculations to commissioning guidance.

Get a Custom Quote & Design

Looking for a heavy-duty step-up solution for your facility?
Tell us your load type, primary/secondary voltage levels, and operating environment.

 [Get a Tailored Engineering Proposal & Fast Quote]



Tags:

Electric Power Transformer

industrial power transformer

oil filled power transformer
Overall Rating
5.0
Based on 50 reviews recently
Rating Snapshot
5
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All Reviews
A
Arif Electronics from Bangladesh
Jan 8.2025
Every thing was ok, good service good profucts and good price
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V
vanthala Somlamany from Thailand
Aug 7.2024
Thanks for your service
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Oussama Senouci from Armenia
Jul 11.2024
excellent service
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