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CEEG KKSG Series Mining Dry-Type Transformer - General Purpose Transformer for Underground Mine Substations
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CEEG KKSG Mining Dry-Type Transformer
General-Purpose Dry-Type Transformer for Mining Applications features reinforced insulation and optimized heat dissipation design. It offers low loss, low noise operation, and excellent resistance to moisture and dust, making it well-suited for auxiliary power distribution in both surface and underground mining environments.
CEEG KKSG Series Mining Dry-Type Transformer - General Purpose Transformer for Underground Mine Substations
CEEG KKSG Series Mining Dry-Type Transformer - General Purpose Transformer for Underground Mine Substations
CEEG KKSG Series Mining Dry-Type Transformer - General Purpose Transformer for Underground Mine Substations
CEEG KKSG Series Mining Dry-Type Transformer - General Purpose Transformer for Underground Mine Substations
CEEG KKSG Series Mining Dry-Type Transformer - General Purpose Transformer for Underground Mine Substations
CEEG KKSG Series Mining Dry-Type Transformer - General Purpose Transformer for Underground Mine Substations
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Scope of application
Coal Preparation Plants
Power distribution for coal washing and processing facilities, with a focus on dust protection and reliable operation.
Coal Preparation Plants
Underground Auxiliary Systems
Auxiliary power distribution in general underground environments, emphasizing low noise performance and moisture resistance.
Underground Auxiliary Systems
Mining Area Facilities
Power supply for offices, living areas, and auxiliary stations, with a focus on ease of maintenance and operational convenience.
Mining Area Facilities
Product Description
Product Description
1 Flexible protection options: Optional enclosure with IP21–IP32 rating, providing protection against foreign objects and dripping water, suitable for mining environments.
CEEG KKSG Mining Dry-Type Transformer
2 Temperature monitoring and protection: Equipped with temperature indication, over-temperature alarm/trip, and fan interlocking to enhance operational safety.
CEEG KKSG Mining Dry-Type Transformer
3 Cooling and overload capacity: AN allows full-load operation, while AF enables approximately 50% capacity increase to handle short-term overload conditions.
CEEG KKSG Mining Dry-Type Transformer
4 Advanced winding technology: High-voltage windings use vacuum casting to suppress partial discharge; low-voltage windings adopt foil winding for stable structure and high precision.
CEEG KKSG Mining Dry-Type Transformer
5 Low loss and low noise: High-quality silicon steel sheets with 45° step-lap construction and moisture-proof coating effectively reduce losses and noise.
CEEG KKSG Mining Dry-Type Transformer
6 Strict factory testing: Comprehensive tests including partial discharge, impulse, and noise testing are conducted in accordance with standards to ensure high reliability.
CEEG KKSG Mining Dry-Type Transformer
Product Features
CEEG KKSG Mining Dry-Type Transformer

High-strength enclosure design

  • Rugged Steel Build: Fabricated from high-quality structural and cold-rolled steel.
  • Pro-Grade Finish: Sandblasted for rust removal and coated with anti-corrosion paint.
  • Maximum Protection: Delivers high mechanical strength and excellent corrosion resistance.
CEEG KKSG Mining Dry-Type Transformer

Thermal management and temperature control

  • Smart Cooling System: Combines natural ventilation with automatically controlled fans.
  • Safe Equipment Operation: Delivers forced air cooling to effectively regulate temperature.
CEEG KKSG Mining Dry-Type Transformer

Low loss and high performance

  • Advanced Performance: Features low losses, low partial discharge, and low noise.
  • Superior Cooling & Standards: High heat dissipation capability with parameters exceeding national standards.
CEEG KKSG Mining Dry-Type Transformer

Safety and environmental protection

  • Safe & Pollution-Free: Features flame-retardant, fire-resistant, and eco-friendly properties.
  • Direct Load Installation: Designed for immediate, safe deployment directly at load centers.
CEEG KKSG Mining Dry-Type Transformer

Convenience and low cost

  • Cost-Efficient Operation: Maintenance-free design with exceptionally low operating costs.
  • Easy & High-Value Setup: Allows for simple installation with high overall cost performance.
CEEG KKSG Mining Dry-Type Transformer

High reliability and protection capability

  • Mining-Ready Design: Engineered with high reliability, strong seismic resistance, and moisture-proof properties.
  • Harsh Environment Survival: Built with exceptional corrosion resistance, specifically tailored for demanding mining environments.
Main Parameters
Rated capacity 50 kVA to 2500 kVA (customizable)
Rated voltage High-voltage side 3.3 kV / 6 kV / 10 kV
Rated voltage Low-voltage side 0.69 kV / 0.4 kV
Connection group Dyn11, Yyn0 (or customized as required)
Insulation class Class F / Class H
Implementation Standard
Implementation Standard
GB/T 10228-2015 Dry-type power transformer – Technical specifications and requirements
GB/T 1094.1-2013 Power transformers – Part 1: General requirements
GB/T 1094.11-2007 Dry-type power transformer
GB/T 15576-2008 General technical requirements for explosion-protected electrical equipment for coal mines
MT/T 437-2016 General technical requirements for flameproof variable frequency drives for coal mines
Technical Advantages
R&D Cloud Platform
R&D Cloud Platform
An integrated digital platform combining electromagnetic optimization design, parametric modeling, performance analysis, structural optimization, and automatic drawing generation. It enables transformer design resource sharing and efficient data management, including search, modification, and version control.
Simulation Analysis
Simulation Analysis
Comprehensive multi-physics simulation covering fluid flow, thermal field, electric field, leakage magnetic field, transient processes, and short-circuit forces. Each transformer series is optimized through thermal and flow analysis to accurately control winding temperature rise and hotspot distribution, ensuring reliable and stable performance.
Smart Operation & Maintenance Platform
Smart Operation & Maintenance Platform
By collecting key data such as temperature, current, voltage, vibration, and grid harmonics, the system enables real-time power quality analysis and fault alarms. It also supports mobile access for remote monitoring and intelligent O&M management.
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