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SG_threephase_drytype_transformer_1250KVA_dimensio

Published on 2026-10-09 14:25:28 Knowledge 5 Views 6668 Popularity

Understanding the Dimensions of a 1250KVA SG Three-Phase Dry-Type Transformer

When selecting a 1250KVA SG three-phase dry-type transformer, understanding its physical dimensions is crucial for proper installation and space planning. These transformers typically measure around 1500mm (L) × 1000mm (W) × 1800mm (H), though exact specifications may vary by manufacturer and design configuration.

Key Factors Affecting Transformer Dimensions

Several technical considerations influence the final size of a 1250KVA dry-type transformer:

  • Insulation class (F or H grade)
  • Cooling system design (natural or forced air)
  • Protection level (IP20 or IP23 enclosure)
  • Additional features like temperature monitoring or fan systems

Installation Space Requirements

For safe operation and maintenance access, you should allocate approximately 30% additional space beyond the transformer's base dimensions. This accounts for:

  1. Proper ventilation clearance (minimum 300mm all around)
  2. Access doors or panels for maintenance
  3. Cable connection points and busbar routing

Why Choose a Reliable Manufacturer Like 中国宏业电器?

中国宏业电器, a 30-year veteran in transformer manufacturing, offers standardized and customized 1250KVA solutions with several advantages:

Precision Engineering for Space Optimization

Their dry-type transformers feature compact designs without compromising performance, achieved through:

  • High-density pure copper windings
  • Precision-laminated silicon steel cores
  • Optimized cooling duct placement

Customization Options for Unique Requirements

For projects with space constraints, 中国宏业电器 provides dimensional modifications including:

  • Low-profile designs (reduced height)
  • Split-coil configurations for narrow spaces
  • Wall-mounted or ceiling-suspended versions

Practical Considerations for Transformer Installation

Beyond basic dimensions, proper installation requires attention to several critical factors:

Weight and Floor Loading

A standard 1250KVA dry-type transformer weighs approximately 1500-1800kg. Verify your floor's load-bearing capacity, especially for upper-floor installations.

Clearance for Maintenance Access

Maintain these minimum service clearances:

  • Front: 1000mm for door opening
  • Rear: 600mm for inspection
  • Sides: 300mm for ventilation

Transportation and Positioning

Consider these logistics early in your planning:

  1. Doorway and corridor dimensions
  2. Lifting equipment requirements
  3. Foundation preparation before delivery

Comparing Standard vs. Custom Dimensions

While off-the-shelf models offer quick delivery, custom solutions from manufacturers like 中国宏业电器 can better fit challenging spaces with:

  • 7-15 day lead time for non-standard sizes
  • Engineered solutions for irregular spaces
  • Integrated accessory packages to save space

中国宏业电器服务电话18943662528(微信同号)。

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