• Product advantages
• Product parameters
• Ordering instructions

Product advantages

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Global Certification Standards
This series of mobile substations strictly complies with international and domestic mining safety mandatory standards, with complete qualification certifications to meet global market access requirements. It has obtained IECEx international explosion-proof certification and ATEX EU explosion-proof certification, conforming to Exd I Mb explosion-proof grade, suitable for various explosive and flammable hazardous working environments. Meanwhile, it holds China MA coal mine safety mark certification, national explosion-proof certificate and 3C certification, fully complying with GB national mining safety standards. All products pass strict factory tests including pressure resistance, explosion isolation, insulation performance and over-temperature protection, meeting the safety operation specifications of high-risk mining areas in various countries.
Exported Countries & Market Coverage
With reliable quality and standardized international certification, our KBSGZY mining mobile substations have been successfully exported to dozens of countries and regions worldwide, accumulating rich overseas engineering application experience. The product has stable operating cases in Southeast Asia (Vietnam, Indonesia, Malaysia, Philippines), Central Asia (Kazakhstan, Uzbekistan), Africa (South Africa, Nigeria, Ghana), Eastern Europe (Russia, Ukraine), South America (Peru, Chile) and other mining-intensive areas. It can adapt to different national power grid standards, environmental conditions and mining industry specifications, winning consistent recognition from global mining enterprises for its stable performance and high safety.

Core Product Features
1. Integrated Compact Structure & Flexible Mobility: The whole machine adopts an integrated modular design of high-voltage, transformation and low-voltage units, with compact layout and small floor space, perfectly adapting to narrow underground mine spaces. Equipped with integral lifting lugs and mobile supporting structure, it supports overall hoisting and flexible moving, and can adjust the installation position synchronously with the advance of underground working faces without fixed foundation installation, realizing rapid deployment and transfer.
2. High-Strength Explosion-Isolation Design: The explosion-proof shell adopts high-rigidity corrugated cylindrical structure, with shell compression resistance up to 1.5MPa, far exceeding the conventional industry standard. Independent isolated wiring cavity and standardized high-torque bolt fastening structure effectively block explosion impact and flame spread. It is equipped with high and low voltage interlock protection device and PT100 temperature monitoring components to realize real-time temperature detection and over-temperature alarm and protection.
3. Stable Dry-Type Power Conversion Performance: Adopts high-quality iron core and high-insulation winding materials, with low partial discharge (less than 5pC), low loss and low noise operation. The innovative zoned active heat dissipation structure optimizes internal heat circulation, effectively slows down insulation aging, and ensures long-term stable operation in high humidity, dusty and closed underground environments without oil leakage risk.
4. Comprehensive Intelligent Protection System: Built-in multi-dimensional protection functions including overload, short circuit, electric leakage, overvoltage and undervoltage, with sensitive and reliable protection action. It supports signal communication with underground explosion-proof frequency conversion and control equipment, realizing intelligent monitoring, fault feedback and safe interlock control of power supply status, improving the overall automation level of mine power supply.
5. Wide Voltage Adaptability: Support multiple voltage specifications of input 3.3kV-10kV and output 400V-1200V, compatible with 50/60Hz global mainstream mining power grid standards, meeting the power demand of different mining equipment in various countries.

Product Advantages
1. High Safety & Strong Compliance: Full international and domestic authoritative certifications cover mainstream global mining markets, helping customers quickly pass local safety inspection and project acceptance, eliminating market access barriers. The multi-layer safety protection design effectively avoids explosion, electric leakage and overheating risks, ensuring zero safety accidents in high-risk mine operation scenarios.
2. Cost-Effective & Low Operation Cost: The dry-type oil-free design eliminates the cost of oil replacement, maintenance and leakage treatment. Low-loss electrical structure reduces long-term power consumption loss. The integrated mobile design avoids repeated fixed equipment investment and on-site reconstruction costs caused by working face migration, greatly saving overall project operation and maintenance costs.
3. Strong Environmental Adaptability & Long Service Life: The whole machine is designed with moisture-proof, dust-proof and corrosion-resistant structure, adapting to harsh underground environments such as high humidity, much dust and complex gas composition. High-quality insulation and structural materials ensure strong durability, stable performance and long service life in long-term continuous operation.
4. Easy Installation & High Efficiency: Modular integrated structure requires no complex assembly and foundation construction, realizing on-site rapid installation and commissioning. Flexible mobile performance matches dynamic mining operation mode, effectively improving mine construction and power supply efficiency, and reducing production downtime caused by power supply adjustment.
5. Global After-Sales Support: Relying on rich overseas project experience, we provide standardized product parameters, multilingual technical documents and professional global after-sales service, supporting remote technical guidance and on-site equipment maintenance for overseas customers.

Dry Type Mining Explosion Isolation Moveable Transformer Substation manufacturing, assembly and acceptance standards:

In the design, manufacture and test of KBSGZY products, Hengfengyou Electric adopts GB standard, IEC standard, industry standard of the Ministry of Power and related standards:
GB/T 16927.1-1997 《High voltage test technical part of general test requirements》
GB/T 16927.2-1997 《High voltage test Technology part ii Measurement system》GB/T 5582-1993 《High voltage power equipment insulation pollution grade》
GB 10237-1988 《Insulation level of power transformers and insulation test -- Air gap of outer insulation》
GB 3836.1-2000 《General requirements for explosion-proof electrical equipment for explosive environments》
GB 3836.2-2000 《Explosion-proof electrical equipment for explosive environment flameproof electrical equipment" d”》
GB 3836.3-2000 《Explosion-proof electrical equipment for explosive environment increased safety type" e”》
GB 6450-1986 《Dry type power transformer》
GB 8286-2005 《Mining flameproof Mobile Substation》


KBSGZY Mining Explosion Isolation Moveable Transformer Substation Case

Product parameters

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Ordering instructions

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