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2500kVA Oil-Immersed Power Transformer with OLTC
2500kVA Oil-Immersed Power Transformer with OLTC
2500kVA Oil-Immersed Power Transformer with OLTC
2500kVA Oil-Immersed Power Transformer with OLTC
2500kVA Oil-Immersed Power Transformer with OLTC
2500kVA Oil-Immersed Power Transformer with OLTC
Specifications
Description
2500kVA/3150kVA Oil-Immersed Power Transformer with OLTC for Renewable Energy

The On-Load Tap Changer (OLTC) transformer is designed for medium-voltage distribution networks requiring real-time voltage regulation under load. It is widely used in industrial parks, urban grids, and renewable energy integration. The OLTC mechanism allows automatic or manual voltage adjustment without interrupting power supply, ensuring continuous, stable electricity.

Key Application

Specially designed for renewable energy power generation systems, providing reliable voltage regulation and power distribution for wind farms, solar plants, and other green energy installations.

Core Features
  • On-Load Tap Changer (OLTC) for uninterrupted voltage regulation
  • High-efficiency design optimized for renewable energy applications
  • Robust oil-immersed construction for superior cooling and insulation
  • Available in 2500kVA and 3150kVA capacity options
  • Designed for stable operation with variable renewable energy inputs
  • Low-loss core material for improved energy efficiency
Technical Specifications
Parameter Specification
Rated Capacity 2500kVA / 3150kVA
Cooling Type Oil-Immersed
Voltage Class Customizable based on application
Frequency 50Hz / 60Hz
Insulation Level High voltage withstand capability
Tap Changer On-Load Tap Changer (OLTC)
Efficiency ≥ 98.5% (at full load)
Design Advantages

Our oil-immersed power transformers feature advanced magnetic circuit design and high-quality materials to ensure minimal energy loss and maximum reliability in renewable energy applications. The OLTC system allows for automatic voltage adjustment without interrupting power flow, critical for maintaining grid stability with intermittent renewable sources.

Feature OLTC (On-Load) NLTC (Off-Load)
Voltage Adjustment Can adjust under load Requires power off
Automation Can achieve automatic voltage regulation Usually manual operation
Suitable Applications Medium to large distribution & transmission networks Small distribution networks or stable load scenarios
Cost High Low
Maintenance Requires regular maintenance; mechanical wear Simple maintenance; less wear
Grid Adaptability High, suitable for variable load Low, suitable for stable load
4️⃣ Pros and Cons
OLTC (On-Load Tap Changer)

Pros:

  • Adjusts voltage under load, ensuring stable supply
  • Automatic regulation possible, adapts to load changes
  • Improves power quality

Cons:

  • Complex structure, higher cost
  • Requires regular maintenance due to mechanical wear
NLTC (Off-Load Tap Changer)

Pros:

  • Simple and reliable structure
  • Lower cost, easier maintenance

Cons:

  • Cannot adjust voltage under load
  • Less suitable for fluctuating loads

2500kVA Oil-Immersed Power Transformer with OLTC

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2500kVA Oil-Immersed Power Transformer with OLTC

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2500kVA Oil-Immersed Power Transformer with OLTC
2500kVA Oil-Immersed Power Transformer with OLTC
2500kVA Oil-Immersed Power Transformer with OLTC

Hunan Hentg Power Electric Technology Co., Ltd.

Verified Supplier
1 Years
hunan, changsha
Since 2011
Business Type :
Manufacturer
Main Products :
Oil Immersed Transformer, Dry Type Transformer, Compact Substation Transformer
Total Annual :
300-500MVA
Employee Number :
200~250
Certification Level :
Verified Supplier
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