Price of mining dry-type transformer

　　The prices of mining dry-type transformers vary significantly due to differences in model, capacity, configuration, and manufacturer. The price ranges for common models are as follows:

　　KBSG Series Mining Flameproof Dry-Type Transformers:

　　KBSG-500/10: Approximately RMB 65,000-75,000/unit (fully copper winding, flameproof design, suitable for main power distribution in coal mine underground).

　　KBSG-1000KVA: Approximately RMB 90,000-120,000/unit (large capacity, meeting high-load demands).

　　KBSGZY Mining Mobile Substation: Approximately RMB 115,000-235,000/set (integrated with transformers and switchgear, suitable for mobile power supply scenarios).

　　KSG Series Mining Dry-Type Transformers (Non-flameproof, suitable for environments without explosion hazards):

　　KSG-20KVA: Approximately RMB 560-660/unit (small capacity for lighting/power distribution).

　　KSG-50KVA: Approximately RMB 4,100/unit (medium capacity, suitable for localized power supply underground).

　　KSG13-800KVA: Approximately RMB 45,000/unit (larger capacity, approaching the performance of flameproof models).

　　Other Brands/Models:

　　Shandong Zhongmei Industrial & Mining Supplies Group: Quoted price for KBSG mining flameproof transformer at RMB 96,000/unit (including flameproof certification).

　　Yancheng Weida Transformer Manufacturing: Quoted price for KBSG-630KVA mining flameproof transformer at RMB 92,000/unit (with MA certification).

　　Shanghai Chengsheng Electric: Price range for KSG-2KVA to 50KVA series from RMB 318 to 9,025/unit (increasing with capacity).

　　Reasons for Price Differences:

　　Capacity and Power: Larger capacities result in exponentially higher prices (e.g., the price difference between 20KVA and 1000KVA exceeds 100 times).

　　Flameproof Design: Flameproof models (KBSG) require stringent certification, costing 30%-50% more than non-flameproof models (KSG).

　　Materials and Workmanship: Upgrades such as fully copper windings, high-permeability silicon steel sheets, and epoxy resin casting significantly increase prices.

　　Additional Features: Technologies like intelligent monitoring, voltage regulation, and integrated mobile substations add to technical costs.

　　Procurement Recommendations:

　　Clarify Requirements: Select models based on usage scenarios (underground/surface), load type (continuous/intermittent), and safety level (flameproof/non-flameproof).

　　Compare Parameters: Focus on capacity, voltage level, protection rating (IP54/IP55), and energy efficiency rating (Grade I/II).

　　Cost Control: Bulk purchases may qualify for a 5%-10% discount; aluminum winding transformers are 20%-30% cheaper but have higher long-term energy consumption, requiring a cost-benefit analysis.

　　Manufacturer Qualifications: Prioritize original manufacturers with Mining Product Safety Mark Certification (MA) and ISO9001 certification to avoid middleman markups.