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Voltage Control Oil Immersed Transformer with OLTC Tap Changer for Stable Power Distribution System

Product Summary

Voltage control oil immersed transformer provides automatic voltage regulation solutions for power grids requiring stable voltage output. Automatic Voltage Regulation Equipped with OLTC tap changer Maintains stable output voltage Improves power quality Reliable Oil Immersed Structure Efficient ONAN...

Key Attributes
Brand Name: TNNPI
Model Number: S11/S13/S20
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
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Stable Power Distribution Oil Immersed Transformer

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Voltage Control Oil Immersed Transformer

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OLTC Tap Changer Oil Immersed Transformer

Capacity/KVA:
25kVA–5000kVA / Up To 1250A
Rated Voltage:
11kV / 13.8kV / 24kV / 33kV / 34.5kV
Phase:
Three
Rated Frequency:
50Hz/60Hz
Ambient Temperature:
-25°C To +55°C
Application:
Substation
Type Of Cooling:
ONAN Oil Is Self-cooled
Cooling / Insulation:
ONAN / Air Insulated
Short Circuit Withstand:
20kA–31.5kA (3s)
Protection Degree:
IP54 / IP65
Standards:
IEC 60076 / IEC 62271 / IEC 61439
Customization:
Voltage, Capacity, Current, IP Rating, Color, OEM Logo
Product Description
  • Voltage control oil immersed transformer provides automatic voltage regulation solutions for power grids requiring stable voltage output.

    Automatic Voltage Regulation

    • Equipped with OLTC tap changer
    • Maintains stable output voltage
    • Improves power quality

    Reliable Oil Immersed Structure

    • Efficient ONAN/ONAF cooling
    • Strong insulation performance
    • Suitable for long-term operation

    Grid Stability Solution

    • Reduces voltage fluctuations
    • Supports renewable energy integration
    • Suitable for variable load conditions

    Customized Power Engineering

    • 10kV-35kV voltage range
    • Various capacity options
    • IEC standard manufacturing

    Applications:

    • Utility substations
    • Renewable energy plants
    • Industrial power systems
    • Large commercial facilities
Overall Rating
5.0
Based on 50 reviews recently
Rating Snapshot
5
100%
4
0
3
0
2
0
1
0
All Reviews
C
classic business from Haiti
Oct 6.2025
excellent product!
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D
Diron Santos from France
Jul 3.2025
Qualité est bonne et le fonctionnement est excellent
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P
Pedro Bello from Uruguay
Dec 16.2024
Received and worked as designed.
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