EN
Mining Explosion-Proof Transformer
Mining Explosion-Proof Transformer is configured to the purchaser's network, load and site requirements. The typical range below is for product-page reference; final guaranteed values are confirmed in the approved technical schedule.
|
RATED VOLTAGE |
RATED CAPACITY |
|
STANDARDS BASIS |
TYPICAL APPLICATION |
- Overview
- Recommended Products
- Dry-type flameproof enclosure.
- cable couplers.
- mobile skid.
- integrated protection and monitoring.
- Input/output voltage, capacity, frequency and connected load.
- Load waveform, harmonic spectrum, duty cycle and overload requirement.
- Insulation, enclosure, cooling, protection and certification requirements.
- Installation environment, dimensions and project documentation.
- Dry-type flameproof enclosure.
- cable couplers.
- mobile skid.
- integrated protection and monitoring.
- Process-industry and rectifier loads.
- Electrical isolation and sensitive equipment.
- Mining and hazardous-location power distribution.
General Product Overview：
Our mining explosion-proof (flame-proof) transformers are specialized power distribution units specifically engineered for hazardous underground environments, such as coal mines and tunnels. These transformers are housed in ultra-robust, high-strength steel enclosures designed to contain an internal explosion and prevent the ignition of external explosive gases (methane) or coal dust. They offer high reliability under extreme mining conditions, including high humidity, coal dust accumulation, and severe mechanical vibrations. Certified to meet the most stringent international mining safety standards, they ensure a safe and continuous power supply for underground lighting, ventilation, and heavy-duty mining machinery.
Main Technical Specifications：
| Item | Specification |
|---|---|
| Rated Voltage | Primary: 6kV, 10kV / Secondary: 0.4kV, 0.69kV, 1.2kV |
| Rated Capacity | 50kVA to 4000kVA |
| Explosion-proof Mark | Ex d I Mb (Coal Mine Safety) |
| Insulation Class | Class H or Class C (High temperature resistance) |
| Cooling Type | AN (Natural Air Cooling) |
| Enclosure Protection | IP54 / IP66 (Environment dependent) |
| Standards Compliance | IEC 60079-0/1, GB/T 3836.1/2 |
Core Features & Advantages：
✅High Environmental Tolerance: Specifically designed to operate reliably in 95%+ humidity and dusty environments.
✅Advanced Thermal Protection: Equipped with integrated temperature sensors and over-temperature protection systems.
Main Applications ：
✅Tunneling & Civil Engineering Projects
✅Hazardous Chemical Processing Areas
✅Offshore Drilling Platforms (Flame-proof Zones)
Appurtenance
Inquiry
Please provide the following information so the product selection and quotation can be prepared accurately:
Overview
General Product Overview
The mining explosion-proof transformer or mobile substation is designed for restricted underground spaces, mechanical impact and hazardous operating environments. The final model and marking must match the required mine-safety certification and local regulations.
Main Technical Specifications
Parameter |
Typical range / configuration basis |
Rated voltage |
Up to 10 kV typical |
Rated capacity |
50-4,000 kVA |
Frequency |
50 Hz or 60 Hz; utility-specific where applicable |
Standards basis |
Applicable mining and explosion-protection requirements |
Electrical duty |
Voltage ratio, load waveform, harmonics and duty cycle confirmed per application |
Construction |
Oil-immersed, dry-type or protected enclosure according to service conditions |
Protection |
Temperature, overcurrent and application-specific protection interfaces |
Documentation |
Approved drawings, data sheets and agreed inspection/test records |
Application-Specific Design
Special transformer design begins with the actual load rather than a standard catalogue value. Harmonics, pulse number, isolation duty, overload cycle, enclosure and regulatory requirements determine the winding arrangement and thermal design.
Main Applications
Underground mines and hazardous mining distribution systems.
Engineering Support
Apex supports requirement review, product selection, drawing and interface coordination, manufacturing follow-up, inspection/test-document coordination, export packing and delivery planning. The final scope is defined in the quotation and approved technical agreement.
Recommended Products
Industrial Isolation Transformer | Rectifier and Phase-Shifting Transformer | KYN28 Metal-Clad MV Switchgear
