1.Advanced Flameproof Structure Equipped with patented explosion-proof design and a high-strength enclosure capable of withstanding internal pressure in fault conditions, ensuring safe operation in hazardous mining areas. 2.High Mechanical Strength The robust housing structure enhances impact resistance and structural stability under underground operating conditions. 3.Efficient Thermal Management Design Features active cooling channels and zoned heat dissipation technology to improve heat exchange efficiency while maintaining operational safety. 4.High Safety for Hazardous Environments Specifically engineered for environments with gas, methane, or coal dust, ensuring reliable performance under explosive risk conditions. 5.Stable and Reliable Operation Optimized electrical and structural design ensures long-term stable operation in continuous heavy-duty mining applications.
1.Robust and Durable Structure The enclosure is made of welded section steel and cold-rolled steel plates with anti-corrosion treatment, providing excellent mechanical strength, shock resistance, and corrosion resistance. 2.Flame-Retardant and Moisture-Resistant Designed with flame-retardant materials and moisture-proof construction, ensuring safe and stable operation in humid underground environments. 3.Low Loss and High Efficiency Optimized core and winding design significantly reduce energy losses, improving overall operational efficiency. 4.Low Noise Operation Advanced design effectively reduces electromagnetic noise, making it suitable for confined underground spaces. 5.Maintenance-Free Design High reliability and stable performance minimize maintenance requirements, reducing downtime and operating costs. 6.Strong Environmental Adaptability Suitable for mining tunnels and underground installations with complex and harsh working conditions.
Key Advantages: 1.High Breaking Capacity Equipped with a high-performance vacuum interruption system, ensuring strong breaking capability under fault conditions. 2.Permanent Magnet Operating Mechanism Uses a permanent magnet actuator for precise operation, reduced mechanical wear, and extended service life. 3.Multi-Protection Intelligent Control Supports integrated protection functions including overload, short-circuit, leakage, and gas interlock control for enhanced mining safety. 4.High Operational Stability Designed for stable performance in harsh underground mining environments with complex load conditions. 5.Enhanced Safety and Reliability Flameproof and intrinsically safe design ensures secure operation in hazardous coal mine applications.
Key Advantages: 1.Integrated Multi-Protection Functions Combines short-circuit, overload, leakage, and interlock protection in one unit, significantly improving system safety. 2.High Safety and Explosion-Proof Design Built with flameproof structure, suitable for hazardous underground mining environments. 3.System Coordination Capability Works in coordination with upstream protection devices to ensure selective protection and fast fault isolation. 4.Optimized for Mobile Substations Compact structure designed for easy integration with mining mobile substations and flexible underground deployment. 5.High Reliability in Harsh Conditions Stable performance under heavy load, shock, and complex mining operating environments.
They are mainly used in places with high safety requirements, such as: Commercial buildings and shopping malls Hospitals and schools Data centers Industrial plants Underground and subway systems
Dry type transformers are widely used because they are: Fire-safe: No oil, no leakage, and low fire risk Environmentally friendly: No pollution or oil disposal issues Low maintenance: No need for regular oil testing or replacement Easy installation: Suitable for indoor compact spaces
1. By Voltage Level Low-voltage switchgear: AC ≤ 1000V (e.g., GGD, GCK, GCS, MNS) High-voltage switchgear: AC > 1000V (e.g., KYN28, XGN15, GG-1A; 10kV is often classified as medium voltage) 2. By Current Type AC switchgear DC switchgear 3. By Internal Structure Fixed type switchgear Withdrawable (drawout) type switchgear 4. By Function Incoming line panels Outgoing line panels Metering panels Capacitor (compensation) panels Bus-coupler panels 5. By Structural Form Fixed structure Withdrawable structure 6. By Connection Method Welded structure Bolted (fastener) structure
High Voltage Equipment Includes key components such as circuit breakers, disconnectors, earthing switches, load switches, fuses, CTs & VTs, surge arresters, busbars, and cable terminals. These parts can be integrated into systems like metal-enclosed switchgear, GIS, and prefabricated substations. Low Voltage Equipment Includes low-voltage switchgear, distribution boards, control cabinets, and distribution boxes, used for power distribution, control, and protection in LV systems.
1. GGD Fixed Switchgear Advantages: Simple structure, easy maintenance, strong capacity, widely used. Disadvantages: Limited expansion, large footprint, no smart system interface. 2. GCK Withdrawable Switchgear Advantages: Flexible configuration, high safety, good stability, space-saving. Disadvantages: Limited busbar protection, no advanced system integration. 3. GCS Withdrawable Switchgear Advantages: High performance, flexible design, strong reliability, good safety. Disadvantages: Higher cost. 4. MNS Modular Switchgear Advantages: Compact, modular, flexible assembly, international standard design. Disadvantages: Higher cost. 5. MCS Withdrawable Switchgear Advantages: Compact, highly configurable, supports automation and remote control. Disadvantages: High cost.
1. Efficiency performance: Pay attention to both rated efficiency and load efficiency. Standard models usually achieve over 95% efficiency, while high-performance models can exceed 97%. 2. Temperature rise and losses: Select appropriate capacity and temperature rise design to control long-term losses and ensure stable, long-life operation. 3. Environmental adaptability: Consider installation conditions such as temperature, humidity, and altitude, and choose a model suitable for the specific operating environment. 4. Economy and reliability: Evaluate purchase cost, maintenance cost, and operational reliability to ensure good cost performance and stable long-term investment return.
