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11kV 22kV 33kV Medium Voltage Dry Transformer for Solar PV, Mining and Commercial Substation Applications

Product Summary

Product OverviewThis medium-voltage dry-type transformer is designed for reliable power distribution without liquid insulation. Cast resin insulation provides a robust solution for indoor substations, commercial buildings, industrial facilities and renewable-energy projects where fire safety, low ...

Key Attributes
Brand Name: TNNPI
Model Number: SCB
Place of Origin: Henan, China
Certification: CE/ISO/UL/CUL
MOQ: 1
Price: $680~$9500
Supply Ability: 500Pcs/mouthly
Delivery Time: 7-14 Business Days
Payment Terms: L/C,D/A,D/P,T/T,Western Union
Standard Packaging: Wooden Crate+steel Frame
Product Custom Attributes
Material:
Alumnium Or Copper
Standerds:
ISO IEC GB
Windingmaterial:
Copper / Aluminum
Voltage:
10-69kv
Type:
Power Transformer
Shape:
Rectangle, Round
Others:
Any Customized Spec
Rated Output Voltage:
Three Phase 380V 440V 400V Or Customized
Vector Group:
Dyn11
Phase Number:
Three Phase
Tap Range:
±2×2.5%
Feature:
Low Noise
Product Description

Product Overview
This medium-voltage dry-type transformer is designed for reliable power distribution without liquid insulation. Cast resin insulation provides a robust solution for indoor substations, commercial buildings, industrial facilities and renewable-energy projects where fire safety, low maintenance and environmental considerations are important.

Key Selling Points

  • Covers common medium-voltage systems from 10kV to 35kV, including 11kV, 13.8kV, 20kV, 22kV and 33kV.
  • Cast resin winding structure provides strong insulation performance and resistance to moisture and environmental contamination.
  • No transformer oil reduces the risk associated with oil leakage and simplifies maintenance.
  • Natural air cooling or forced-air cooling can be selected according to capacity and installation conditions.
  • Suitable for tropical and high-humidity environments when designed with appropriate insulation and anti-condensation measures.
  • Optional temperature controller, cooling fans, enclosure and protection accessories are available.

Applications
Industrial substations, factories, hospitals, commercial buildings, data centers, solar plants, mining facilities and infrastructure projects.

Typical Parameters
Rated voltage: 1–35kV
Capacity: customized
Frequency: 50/60Hz
Cooling: AN/AF
Insulation: cast resin
Installation: indoor/outdoor

FAQ
Can the primary voltage be customized? Yes, from 1kV to 35kV according to the grid.
Is 33kV available? Yes.
Can forced-air cooling be added? Yes.
Is it suitable for humid areas? Yes, with appropriate design.
Can IEC requirements be followed? IEC-based manufacturing is available.

Overall Rating
5.0
Based on 50 reviews recently
Rating Snapshot
5
100%
4
0
3
0
2
0
1
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All Reviews
W
William Torres from United States
Dec 22.2025
The oil-free design is incredibly reassuring! Installed indoors, there’s absolutely no worry about oil leakage or fire hazards—offering a high level of safety.
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M
Mariven Pondang from Philippines
Oct 8.2025
Professional and dependable team—issues were resolved rapidly.
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E
Elmer Danao from Philippines
Sep 10.2025
Expert after-sales support—problems were fixed quickly.
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