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13.8KV 3.15MVA Skid Mounted Substation Transformer

The 13.8KV 3.15MVA Skid Mounted Substation Transformer is an engineered solution designed for reliable medium-voltage power distribution in demanding environments. Built on a heavy-duty skid frame, this transformer combines a compact footprint with robust oil-immersed insulation, ensuring safe and efficient performance even in remote or temporary installations.
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Product Accessories

Digital Supervisory Interface: Monitors transformer performance in real time.

Automated Load Tap Adjustment Module: Enables seamless voltage control under varying loads.

Oil Filtration & Condition Assessment Kit: Optimizes oil purity and insulation integrity.

High-Voltage Terminal Block Assembly: Provides secure, customized connectivity.

Dual Thermal & Pressure Sensor Suite: Continuously tracks operational conditions.

Vibration Absorption Isolation Kit: Minimizes mechanical stress for enhanced durability.

Surge Voltage Suppression Unit: Protects against transient overvoltage events.

Advanced Data Logging System: Records operational metrics for performance analysis.

Robust Grounding & Bonding Assembly: Ensures safe, reliable installation.

Comprehensive Installation & Maintenance Guide: Offers detailed support for setup and upkeep.

Product Specifications

Rated Power
3.15 MVA
Primary Voltage
13.8 kV
Secondary Voltage
480 V
Vector Group
Dyn11
Cooling Method
ONAN (Oil Natural Air Natural)
Impedance
7.5% at 85°C
Insulation Level
LI 110 / AC 38 (HV), AC 3 (LV)
No-Load Loss
≤45 kW
Load Loss at 85°C
≤35 kW
Noise Level
≤70 dB(A)

Product Applications

Economy is more affordable

Product Advantages

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Rugged Skid-Mounted Design

Easy transport, quick installation, and relocation for flexible deployment in challenging terrains.

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High Reliability and Efficiency

Copper windings, hermetically sealed tank, and optimized core design reduce energy losses and extend service life.

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Global Standards Compliance

Meets IEC 60076 and holds UL/CE certifications, ensuring compatibility with international utility and industrial requirements.

WellDone Power Transformer Plan Drawing


FAQ

  • What range of transformer products do you offer and which standards do they meet?
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    We manufacture a diverse array of transformers including Oil-Immersed Distribution Transformers, Dry Type Transformers, Power Transformers, Three Phase Pad Mounted Transformers, Single Phase Pad Mounted Transformers, Substation Transformers, and Pole Mounted Transformers. Our technical team, with nearly 20 years of industry experience, ensures that our designs comply with international standards such as ANSI, IEEE, DOE, CSA, AS, AZS, GOST, IEC, and more. Additionally, many of our products have obtained UL, cUL, and CSA certifications, affirming their safety and performance in global markets.
  • How do you ensure the quality and reliability of your transformers?
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    Our transformers are produced under a rigorous quality management system covering every stage from material selection to final testing. Each product comes with a minimum 24-month warranty, ensuring long-term safety and reliability. This commitment to quality has earned the trust of global customers and leading industry players.
  • What are your production lead times, customization options, and global market reach?
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    For standard models, our production lead time is typically 10 to 25 days, and we offer flexible OEM/ODM services for customized projects. We also tailor packaging solutions to meet specific customer requirements. Our transformers are exported worldwide—including North America, Europe, South America, Australia, Asia, and Africa—with successful partnerships involving renowned companies. For more details or personalized support, please contact us via email or WhatsApp.
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 Add: No.88 Fengwang Industry Zone, Liuji Town,
Tongshan District, Xuzhou, China
 Tel: +86-516-85021869
 Email:  info@welldonepower.com
 WhatsApp: +8618952212851
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