Solusyon sa Pad-Mounted Transformer: Mas Maayo nga Efektiividad sa Espasyo ug Pagtakda sa Gasto kaysa sa Tradisyonal nga mga Transformer

1.Integrated Design & Protection Features of American-Style Pad-Mounted Transformers

1.1 Integrated Design Architecture

Ang mga American-style pad-mounted transformers gamiton usa ka kombinadong disenyo nga naglakip sa mahalagang komponente - core sa transformer, windings, high-voltage load switch, fuses, ug arresters - sa usa ka lang oil tank, gamiton ang transformer oil isip insulasyon ug coolant. Ang struktura gisubdivide ngadto sa duha ka pangunahing seksyon:

• ​Front Section:​​High & Low Voltage Operation Compartment (may elbow plug-in connectors nga modungog sa live-front operation).
• ​Rear Section:​​Oil filling compartment ug cooling fins (oil-immersed cooling system).

1.2 Dual Protection Mechanism

• ​Plug-in Fuses:​​Nagprotekta kontra sa secondary-side fault currents.
• ​Backup Current-Limiting Fuses:​​Nagprotekta kontra sa major primary-side faults.
• ​Overload Capacity:​​Ang orihinal nga disenyo naghimo og 2-hour sustained overload sa 200% rated load; kasagaran gitrayek sa domestic nga 130% rated load para sa 2 hours.

1.3 Principle Differences vs. Conventional Transformers

Ang mga conventional transformer setups gamiton ang separate "switchgear - transformer - distribution equipment" layouts. Ang American-style pad-mounted transformers gamiton ang oil-immersed integration aron mapugos ang cable connections, nakuha ang 40%-60% mas compact nga struktura.

2. Core Differences: Pad-Mounted Transformers vs. Conventional Transformers

3. Application Benefits of Pad-Mounted Transformers in Typical Scenarios

3.1 Urban Grid Renovation

• ​Case Study:​​Ang usa ka Shanghai power utility nagdeploy og 1,103 American-style pad-mounts (49% share) sa residential communities. Ang usa ka primary school renovation project budgeted RMB 640,000 natapos sa 15 days.
• ​Noise Reduction Solution:​​Implementado ang "shell - acoustic cotton lining - shell" sound absorption structure, nakabawas sa noise gikan sa 60dB hangtud sa below 40dB, compliant sa GB 3096 night-time standard.

3.2 Renewable Energy Projects (Wind Farms / Solar PV)

• ​Cost Efficiency:​​35/0.69kV wind farm step-up transformer cost RMB 410,000/unit, RMB 100,000-150,000 lower than European-style units. Line losses reduced by 10%-15%.
• ​Anti-Corrosion Process:​​Coastal areas utilized "shot blasting derusting + epoxy zinc-rich primer + polyurethane topcoat". Equipment at a Guangdong wind farm showed no corrosion after 8 months.

3.3 Temporary Power & Peripheral Scenarios

• ​Advantages:​​Small size (easy transport); elbow connectors enable live-front operation; suitable for construction sites & remote areas.
• ​Limitations:​​Requires integration with ring main units (RMUs) to enhance power supply reliability.

4. Optimal Application Scenarios & Selection Guidelines

4.1 Priority Application Scenarios

• ​Space-constrained areas:​​Old urban districts, narrow streets.
• ​Renewable Energy Projects:​​Wind farms, distributed PV grid connection points.
• ​Temporary Power Supply:​​Construction sites, temporary event venues.
• ​Cost-sensitive projects:​​Distribution network construction with limited initial investment budget.

4.2 Selection Considerations

• ​Environmental Adaptation:​​Use triple-protection coating (epoxy zinc-rich primer + polyurethane topcoat) in high salt-spray regions. Enhanced cooling design required in high-altitude areas.
• ​Reliability Trade-off:​​Prioritize European-style units for high-rise buildings and critical public facilities. Avoid American-style units in areas with rapid load growth (capacity increase requires pad reconstruction).
• ​Noise Control:​​Utilize noise-reduction enclosures or flexible connections in urban residential zones to mitigate low-frequency noise impact.