KBSG Series Mining Flameproof Dry-Type Transformer
The KBSG series mining flameproof dry-type transformer innovatively introduces active cooling tube technology. Through optimized heat dissipation design with a zoned high-efficiency cooling scheme, it significantly improves the transformer's heat dissipation, effectively slows the aging of insulation materials, and further enhances the product's long-term stability and reliability.
Product Introduction
Key Specifications
Rated Capacity
50-4000kVA
Primary Voltage
6000±5%；10000±5%
No-Load Current
0.6-2.5
Rated Frequency
50Hz
Maximum temperature rise
Controlled Within 65°C
Insulation Class
Class F (155°C) or Class H (180°C)
Applications
Underground mine distribution room
Gas and coal dust environments; focus on flameproof structure and heat dissipation
Tunnel mining
Tunnel scenarios with explosive gas risks, emphasizing reliable operation
Fluctuating load
Frequent underground starts/stops and load variations, focusing on shock resistance
Product Overview
- Stronger heat dissipation: pioneering multi-loop active cooling structure delivers higher heat-exchange efficiency, staying stable during prolonged heavy-load operation.
- Worry-free O&M: design prevents dust buildup, heat buildup, and water ingress; front-mounted tap changer in a more compact size.
- Flexible mobility: can work with a high-voltage switch and low-voltage protection box to form an intrinsically safe explosion-proof loop; the adjustable chassis makes relocation and installation more flexible.
- NOMEX insulation system: heat and aging resistant with more stable insulation performance, safe and reliable
- Strict design and process control: optimized structural design and rigorous production testing for more stable flameproof performance
- Low losses, low partial discharge, low noise: more efficient operation and longer service life
Product Features
Innovative Heat Dissipation System
Active cooling pipes and zoned high-efficiency heat dissipation design, through internal-external air heat exchange and natural convection, significantly enhance the transformer's cooling capacity, ensuring stable operation in high-temperature environments.
Extended Service Life
Optimized heat dissipation design effectively reduces the transformer's internal temperature rise, delaying insulation material aging, extending equipment service life, and reducing maintenance frequency.
Improved safety
The top corrugated plate features an arc design that prevents coal dust accumulation, reduces the risk of fire from high temperatures, and significantly enhances product safety.
Easy operation
A vertical tap-adjustment handhole on the high-voltage side makes operation more convenient, reduces safety hazards during operation, and improves ease of use.
Compact and scalable
The transformer chassis adopts a frame structure that is space-saving and compact for easy installation and future expansion. It also supports wheelbase and center of gravity adjustment to adapt to different working environments.
Easy Inspection and Maintenance
Well-arranged inspection doors and observation windows make routine checks and part replacement quicker and easier
Standards and certifications
GB 11022-2019
Power transformer
GB 12023-2016
Safety regulations for mining flameproof electrical equipment
IEC 60076
International Standards for Power Transformers
GB/T 19212.1-2015
Flameproof Electrical Equipment for Mines - Part 1: General Requirements
GB/T 6451-2015
Dry-Type Transformers
Technical Advantages
R&D cloud platform
Integrates electromagnetic optimization design, parametric drawing, performance analysis, structural optimization, and automatic drawing output for transformers, enabling shared transformer design resources and search, modification, and version control of all kinds of data.
Simulation Analysis
Flow field, temperature field, electric field, leakage magnetic field, wave process, and short-circuit force. The R&D and design of every product series are verified through flow field and temperature field simulation analysis to determine the winding average temperature rise and hot-spot temperature, ensuring product performance.
Smart O&M platform
By collecting key data such as transformer temperature, current, voltage, vibration, and grid harmonics, it enables online power quality analysis and fault alarms, and can be installed on mobile phones.
