Mining Transformer
Your Leading Mining Transformer Supplier
Trust In Grid Co., Ltd. is a professional transformer manufacturer, specializing in the design and production of power transformer, high-voltage switchgear, power distribution equipment, energy storage systems (ESS), magnetic wire, bushing and machining parts. Our power transformers are available in 500KV, 330KV, 220KV, and 110KV models, and are widely used in power utilities, renewable energy systems (solar and wind), industrial facilities, data centers, transportation infrastructure, and OEM applications.
Why Choose Us?
Production Capacity
With 6 factories covering 240,000 m², over 2,000 employees, and 200+ engineers, we support large-scale projects and long-term global supply with more than 30 years of export experience.
Advanced Equipment
We operate a complete set of in-house production equipment, including cutting, winding, CNC machining, vacuum drying, and testing systems, with over 450 machines ensuring stable quality and efficient output.
Quality Control
All products are manufactured and tested in compliance with IEC, IEEE, ANSI, CSA, UL/cUL, CE, and ISO 9001:2015 standards, ensuring reliable performance and smooth international approval.
OEM & ODM Capability
Our engineering team provides OEM/ODM support, including customized design and technical optimization, delivering tailored solutions for utility, industrial, and renewable energy projects.
Specifications of Mining Transformer
|
Parameter |
Specification |
|
Transformer Type |
Mining Duty Transformer |
|
Rated Power |
500 kVA – 10,000 kVA |
|
Primary Voltage |
3 kV – 35 kV (6 kV / 10 kV / 20 kV typical) |
|
Secondary Voltage |
400 V / 690 V / 1140 V |
|
Frequency |
50 Hz / 60 Hz |
|
Phase |
Three-phase |
|
Cooling Method |
ONAN / ONAF or AF |
|
Insulation Class |
Class A / F / H |
|
Protection Level |
IP23 – IP65 |
|
Explosion Protection |
Optional flameproof design (Ex-rated for underground mining) |
|
Impedance |
4% – 10% |
|
Overload Capacity |
1.2 – 1.5 × rated load |
|
Temperature Rise |
55°C / 65°C standard |
|
Core Material |
Grain-oriented silicon steel |
|
Winding Material |
Copper / Aluminum |
|
Installation Type |
Underground mine / open-pit mine / mobile substation |
|
Standards |
IEC 60076 / IEEE C57 / ANSI |
|
Application |
Mining equipment, conveyors, crushers, ventilation systems |
Features of Mining Transformer
Durability: Mining transformers are engineered for exceptional durability to withstand harsh and rugged mining conditions, including exposure to moisture, dust, high temperatures, vibrations, and corrosion.
Explosion-Proof Design: In mines where flammable gases or dust may be present, explosion-proof mining transformers are required to prevent the risk of ignition and explosion. These transformers are designed to minimize the risk of sparking or overheating.
High Efficiency: Mining operations place a significant demand on electrical power, making energy efficiency crucial. Mining transformers are designed with high-efficiency cores and windings to minimize energy losses and reduce operational costs.
Multiple Voltage Outputs: To accommodate various electrical equipment with different voltage requirements, mining transformers typically feature multiple output windings, allowing for the provision of a range of voltage levels.
Lightweight Design: Considering the need for ease of transportation and installation within mining sites, mining transformers are designed to be lightweight without compromising their durability and performance.
High Electrical Insulation: Mining transformers are equipped with robust electrical insulation systems to ensure safe and reliable operation, minimizing the risk of electrical faults.
Temperature Monitoring: To prevent overheating and overloading, many mining transformers are equipped with temperature monitoring and protection systems to ensure safe operation within specified temperature limits.
Customization Options
Voltage levels: Customizable
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Power rating: Customizable
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Cooling type: Customizable
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Explosion-proof level: Customizable
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Enclosure material: Customizable
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Cable entry design: Customizable
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MOQ: Customizable
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Core Lamination Process
The transformer core is manufactured using high-grade CRGO silicon steel to minimize core loss and improve efficiency.
Winding Process (Copper / Aluminum)
Windings are produced using high-conductivity copper or aluminum, depending on project requirements.
Vacuum Drying & Oil Filling
This process ensures optimal insulation performance and long-term reliability.
Testing & Quality Control
Each transformer undergoes strict testing procedures in accordance with international standards.
Final Assembly & Packaging
Final assembly ensures mechanical integrity and readiness for transportation and installation.
Mining Industry: Mining transformers are primarily used in mines and the mining industry to provide stable power to mining equipment, hoisting equipment, ventilation systems, and other machinery.
Mine Distribution Systems: Mining transformers are also used in mine distribution systems to step down the voltage from high-voltage transmission lines to levels suitable for internal use within the mine.
Mine Lighting Systems: In underground mines, mining transformers are utilized in power distribution for lighting systems, ensuring the safety of workers and smooth production operations.
Comparison of Mining Transformer with Other Types of Transformers
Mining transformers differ from standard transformers in several ways:
Durability: Unlike typical transformers used in urban areas, mining transformers are built to withstand rough handling and environmental exposure.
Safety Features: While standard transformers focus on electrical efficiency, mining transformers prioritize safety with flameproof and explosion-proof designs.
Mobility: Mining transformers are often portable, allowing for flexibility in moving equipment around the mining site.
Custom Voltage Options: Mining transformers frequently require specialized voltage ranges to accommodate heavy mining machinery, unlike standard transformers, which often handle fixed voltage levels.
Payment Terms
T.T with 30% downpayment, 70%before shipment.
Paypal or West Union also accept.
Our Service Highlights
Pre-Sales Consultation & Design Support
Early technical engagement to define requirements and deliver optimized solutions.
During Sales & Project Execution
Transparent project management with controlled production, quality tracking, and on-time delivery.
Warranty Advantage
Minimum 2-year warranty on all products, ensuring reliable and risk-free operation.
After-Sales Support
24/7 technical support with fast response, spare parts availability, and training services.
Long-Term Partnership
Lifelong technical support and upgrade guidance for sustained performance.
Packaging & Shipping
Packaging details:
Shockproof foam/moisture-proof film, professional export cartons/wooden crates/pallets.
Final assembly ensures mechanical integrity and readiness for transportation and installation.
Certificates
We're well-known as one of the leading mining transformer manufacturers and suppliers in China, also support customized service. Please feel free to buy high quality mining transformer made in China here from our factory. Contact us for more details.
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