CEEG Mining Low-Voltage Power Distribution Unit
Low-Voltage Distribution Equipment for Mining Applications is designed for underground low-voltage power supply systems. It features explosion-proof, dustproof, and moisture-proof construction with comprehensive protection logic, ensuring safe and reliable operation of power and lighting loads under complex working conditions.
Scope of application
Mining Face (Excavation Area)
Low-voltage power and lighting supply, focusing on explosion-proof design and protection against dust and moisture.
Hoisting & Transportation Systems
Power supply for hoisting and conveying equipment, emphasizing protection logic and operational reliability.
Underground Auxiliary Systems
Power supply for lighting and auxiliary equipment, focusing on stable operation and ease of maintenance.
Product Description
1 Flexible functionality: Multiple primary circuit schemes with freely configurable internal loops, meeting requirements for power distribution, bus tie, power factor compensation, and lighting applications.
2 Advanced technology: Utilizes advanced 660V (380V) and 127V non-oil electrical components with high breaking capacity, ensuring stable and reliable performance.
3 Safety protection: Equipped with electrical interlocking circuits to prevent misoperation such as switching isolators under load. Cable entry devices prevent twisting, pulling-out, and damage, and provide convenient grounding bolts.
4 Reliable structure: Busbar spacing and supporting insulators ensure sufficient dynamic and thermal stability. Electrical clearances and creepage distances comply with relevant standards and regulations.
5 Grounding system: Equipped with reliable internal and external grounding devices to ensure safe operation of the equipment.
6 Environmental adaptability: Humidity and heat resistance performance complies with GB3836 “Electrical Apparatus for Explosive Gas Atmospheres,” ensuring suitability for harsh mining environments.
Product Features
Explosion-proof safety
Designed with mining explosion-proof technology, suitable for coal mines and other flammable and explosive environments, complying with relevant national standards such as GB 3836.
Robust and durable
The enclosure is typically made of high-strength metal or special anti-corrosion materials, providing excellent resistance to moisture, corrosion, and dust.
Intelligent control
Some models are equipped with intelligent control systems, enabling remote monitoring and management to improve operational efficiency.
Versatile functionality
Supports power distribution, overload protection, short-circuit protection, leakage protection, monitoring, and alarm functions to meet complex underground load requirements.
Modular design
Compact structure for easy installation, maintenance, and system expansion.
Easy maintenance
Clear circuit layout with reserved maintenance space, enabling fast troubleshooting and component replacement to minimize downtime.
Main Parameters
Rated Voltage 380V、660V、1140V
Rated Current 50A~630A
Protection Degree (IP Code) IP54 or higher
Operating Ambient Temperature -20℃~+40℃
Implementation Standard
GB 3836 Explosion-Protected Electrical Equipment for Explosive Atmospheres
GB/T 12173 Mining General-Type Electrical Equipment
GB/T 14048 Low-Voltage Switchgear and Controlgear Assemblies
GB 4208 Degree of Protection of Enclosures (IP Code)
MT/T 658 General Technical Requirements for Explosion-Protected Low-Voltage Distribution Equipment for Coal Mines
IEC 60079 Electrical Equipment for Explosive Atmospheres
Technical Advantages
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
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
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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