SG_threephase_drytype_transformer_400KVA_dimension

SG Three-Phase Dry-Type Transformer 400KVA: Key Dimensions and Weight Considerations

When planning an electrical installation, understanding the physical specifications of a transformer is just as crucial as its electrical parameters. For the widely used SG three-phase dry-type transformer 400KVA, proper dimension and weight assessment ensures seamless integration into your power distribution system.

Standard Dimensions for 400KVA SG Transformers

The typical footprint of a 400KVA dry-type transformer measures approximately 1000mm (L) x 800mm (W) x 1200mm (H), though these figures can vary slightly among manufacturers. At China Hongye Electric, our production adheres to IEC standards while allowing for customized dimensions when special installation spaces require it. The compact design makes it suitable for both indoor substations and outdoor enclosures with proper protection.

Weight Specifications and Handling Requirements

A standard 400KVA unit weighs between 850-950kg, depending on the materials used. Three factors primarily influence the weight:

• Copper vs aluminum windings (coil material)
• Core construction (laminated silicon steel thickness)
• Protective enclosure type (IP20/IP23)

China Hongye Electric's models use pure copper windings and high-grade silicon steel cores, which contribute to slightly higher weight but ensure better efficiency and longevity. For precise handling, we recommend using forklifts with at least 1.5-ton capacity or overhead cranes for vertical installations.

Installation and Space Planning Recommendations

Clearance Requirements

Maintain minimum clearances around the transformer for proper ventilation and maintenance access:

• Front: 1000mm for door opening
• Rear/Sides: 600mm minimum
• Top: 1200mm for heat dissipation

These measurements become particularly important when installing multiple units or working in confined spaces. China Hongye Electric's technical team can provide customized layout drawings for complex installations within 3 working days.

Floor Loading Considerations

At nearly 1 ton, the transformer's weight distribution requires proper structural support. Key calculations should include:

• Static load capacity of the installation floor
• Vibration absorption requirements
• Seismic factors in earthquake-prone areas

For projects requiring special mounting solutions, our engineers can recommend anti-vibration pads or steel support frames that distribute the load evenly.

Why Choose a Reliable Manufacturer?

The physical specifications only tell part of the story. Transformer performance and longevity depend heavily on manufacturing quality. Established manufacturers like China Hongye Electric implement rigorous quality controls:

• 24-hour full-load aging tests before shipment
• F-class insulation systems rated for 155°C
• Precision wound coils with Nomex insulation

With 30 years of transformer manufacturing experience and 36 service网点 nationwide, they offer comprehensive support from selection to maintenance. The 2-year whole machine warranty plus 5-year core components coverage provides long-term peace of mind.

中国宏业电器服务电话18943662528（微信同号）。