500KVA dry-type transformer

　　Core Analysis of 500KVA Dry-Type Transformers

　　I. Price Range and Influencing Factors

　　Mainstream Price Range

　　According to market data, the price range for 500KVA dry-type transformers is RMB 12,800 to RMB 45,000 per unit, with specific prices influenced by the following factors:

　　Brand and Model: Well-known brands (e.g., Guoda, Guanneng, Anzheng) generally command higher prices due to mature technology and stable quality. For example:

　　Guoda SCB14-500KVA (all-copper coil) costs approximately RMB 38,000;

　　Jiangsu Anzheng SCB14-500KVA (with complete certifications) costs around RMB 20,000;

　　Shandong Guanneng SCB13-500KVA (customized for mining use) reaches RMB 45,000.

　　Material and Process: Transformers with all-copper coils, known for superior conductivity and longevity, are priced higher than those with aluminum coils. Models featuring epoxy resin casting processes (e.g., SCB13/SCB14 series) also incur higher costs due to enhanced insulation performance.

　　Customization Requirements: Specialized voltages (e.g., 690V, 1140V), weatherproof enclosures, and outdoor installation options drive up prices. For instance, Niute offers customizable capacities from 500VA to 2000KVA, with voltage ranges covering 12V to 10000V.

　　Cost-Effectiveness Recommendations

　　Limited Budget: Opt for basic models from niche brands (e.g., Wanxin SCB10-500KVA at RMB 12,800), but verify certifications and after-sales support;

　　Long-Term Stability: Prioritize well-known brands with all-copper coils (e.g., Guoda, Anzheng), priced between RMB 30,000 and RMB 40,000, with a lifespan of up to 30 years;

　　Special Environments: For mining or outdoor applications, select models with high protection ratings (e.g., Guanneng SCB13-500KVA with weatherproof enclosure).

　　II. Technical Parameters and Performance Comparison

　　Basic Parameters

　　Capacity: 500KVA (apparent power), with actual output power depending on load type:

　　Resistive loads (e.g., resistance furnaces): 500KW;

　　Inductive loads (e.g., motors): 200KW at a power factor of 0.8, or 150KW at 0.6.

　　Voltage Ratio: Commonly 10/0.4KV (high-voltage side: 10KV; low-voltage side: 0.4KV), suitable for industrial power distribution needs.

　　Frequency: 50Hz (standard in mainland China).

　　Cooling Method: Natural cooling (recommended for capacities below 200KVA) or forced air cooling (recommended for 500KVA and above, enabling a 40% capacity increase).

　　Performance Differences

　　Insulation Class: H-class (withstanding 180°C) outperforms F-class (155°C), making it suitable for high-temperature environments;

　　Energy Efficiency: The SCB14 series reduces losses by 15%-20% compared to the SCB10 series, meeting secondary energy efficiency standards and offering long-term energy savings;

　　Noise Control: High-quality models generate noise levels below 60dB (measured at 80cm), meeting the requirements of quiet environments such as hospitals and schools.

　　III. Application Scenarios and Selection Recommendations

　　Typical Application Scenarios

　　Industrial Sector: Factory power distribution, machine tool power supply (e.g., Niute SG-500KVA supporting 690V high-voltage input);

　　Commercial Buildings: Power distribution for high-rise office buildings and shopping malls (recommended: installing smaller-capacity transformers on each floor to minimize fault impact);

　　Special Environments: Mines (requiring explosion-proof design), outdoor settings (requiring weatherproof enclosures), and coastal areas (requiring corrosion resistance).

　　Key Selection Considerations

　　Load Type: For frequent motor startups, reserve 20%-30% capacity margin;

　　Ambient Temperature: If temperatures consistently exceed 40°C, derate the transformer or opt for forced air cooling models;

　　Installation Space: Indoor installations require reserved cooling channels, while outdoor installations necessitate an IP23 protection rating or higher;

　　Future Expansion: Reserve 10%-15% capacity margin to accommodate load growth.

　　IV. Market Trends and Purchase Recommendations

　　Industry Trends

　　Energy Efficiency: Low-loss models like SCB14/SCB18 are gradually replacing SCB10, accounting for over 60% of the market share;

　　Intelligence: Some models integrate temperature control instruments and RS485 communication interfaces, supporting remote monitoring;

　　Customization: Growing demand for customized voltages, capacities, and protection levels, with niche brands offering faster response times.

　　Purchase Considerations

　　Certification Verification: Ensure products have CCC certification, PCCC certification, and that manufacturers hold ISO three-system certifications;

　　After-Sales Support: Prioritize brands offering 5-year warranties and 24-hour response services (e.g., Guoda, Anzheng);

　　Transportation Costs: Large-capacity transformers require dedicated vehicle transportation; confirm whether freight is included (e.g., Niute supports freight-inclusive customization);

　　Installation Services: Some manufacturers provide free installation and commissioning (e.g., Jiangsu Anzheng), reducing long-term costs.