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5000kVA Skid Mounted Substation Transformer

The 5000 kVA Skid-Mounted Substation Transformer is a turnkey solution for rapid deployment in medium-voltage distribution networks. Housed on a heavy-duty skid frame, it steps down primary voltages up to 44 kV to 4.16 kV (or custom secondary levels) with ±5 % on-load tap adjustment (41.8 – 46.2 kV range). Built to CSA C88 and UL/cUL standards, its conservator tank with silica-gel breather maintains oil purity, while ONAN cooling supports continuous 5 MVA operation. Crafted for outdoor installations—from EV charging stations to data centers and renewable energy plants—this transformer delivers reliable performance, low maintenance, and straightforward skid-mounted integration for projects requiring fast, modular substation builds.

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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.

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Product Specifications

Rated Power

5 000 kVA (ONAN) / 5 500 kVA (ONAF)

Primary Voltage

44 kV (up to 46.2 kV max tap)

Secondary Voltage

4.16 kV (customizable to 2.4 – 13.8 kV)

Tap Changer

OLTC, ±5 % in 5 steps

Cooling Method

ONAN (standard), ONAF (optional)

Frequency

60 Hz

Impedance

6.5 %

BIL Rating

250 kV (HV) / 75 kV (LV)

Oil Volume

3 133 L

Total Weight

15 800 kg

Product Applications

Economy is more affordable

Supports reliable power distribution for railways, metro systems, and airport transit hubs.

Critical Transportation Networks
Supplies consistent, high-quality power for manufacturing and processing plants.

Heavy Industrial Facilities
Seamlessly integrates wind and solar installations into existing grids.

Distributed Renewable Energy Systems
Enhances city grid stability with precise voltage regulation.

Urban High-Voltage Substation Upgrades

Product Advantages

Skid-Ready Deployment

Factory-installed on a transport frame for minimal onsite assembly and rapid commissioning.

Flexible Cooling & Capacity

ONAN design handles 5 MVA continuous loads; optional ONAF fans boost capacity by 10 %.

Integrated Protection & Control

Prewired panels and relays cut field wiring errors and accelerate startup schedules.

WellDone Power Transformer Plan Drawing

FAQ

What range of transformer products do you offer and which standards do they meet?

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?

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?

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.

5000kVA Skid Mounted Transformer 5000kVA Substation Transformer 5000kVA Skid Mounted Substation Transformer

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