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1250kVA Single-Phase Dry Type Transformer

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1250kVA Single-Phase Dry Type Transformer
65+ Years of Experience

1250kVA Single-Phase Dry Type Transformer

The 1250kVA single-phase dry-type transformer provides safe, oil-free and stable step-down power for industrial plants, commercial buildings, data centers and automation systems. Designed for indoor installation with low losses, high thermal endurance and

  • Rated voltage:
  • Rated capacity:1250kVA
  • Application scenarios:1250kVA Single-Phase Dry-Type Transformer for Industrial & Commercial Power Systems

The 1250kVA single-phase dry-type transformer is designed for high-capacity power conversion in commercial and industrial low-voltage distribution systems where safety, reliability, and environmental performance are essential.

As a step-down transformer, it efficiently reduces the input voltage to a stable secondary voltage suitable for supplying large electrical loads, control panels, and sensitive electronic equipment. The dry-type insulation structure eliminates insulating oil, significantly lowering fire risk and making the transformer ideal for indoor installations and locations with strict safety regulations.

On the secondary side, the transformer can be configured to operate with rectifier units, converting alternating current into direct current to meet the power requirements of automation systems, precision machine tools, and electromechanical integrated equipment. Its low partial discharge level and excellent electrical insulation ensure clean and reliable power output.

Featuring low no-load loss, strong short-circuit withstand capability, and high thermal endurance, the 1250kVA single-phase dry-type transformer maintains stable performance under continuous and heavy-load operating conditions. The compact design also helps optimize space utilization in substations and electrical rooms.

This transformer is widely used in industrial plants, commercial buildings, data centers, transportation infrastructure, and as a dedicated power source for imported critical equipment. It offers a reliable, low-maintenance, and environmentally friendly solution for modern power distribution networks.

Type description

Type description

1250kVA Single-Phase Dry-Type Transformer – Technical Specifications

Item Specification
Rated Capacity 1250 kVA
Phase Single Phase
Transformer Type Dry-Type Power Transformer
Primary Voltage 6kV / 10kV / 11kV / 13.8kV / 20kV (customizable)
Secondary Voltage 400V / 380V / 230V / 220V / 110V (customizable)
Frequency 50Hz / 60Hz
Cooling Method AN (Air Natural) / AF (Air Forced)
Insulation Class Class F / Class H
Temperature Rise 100K / 125K
No-Load Loss Low-loss design, compliant with IEC & DOE efficiency requirements
Short-Circuit Withstand High short-circuit strength, suitable for heavy-duty applications
Partial Discharge < 10 pC
Insulation Material Epoxy resin cast or vacuum pressure impregnated (VPI)
Installation Indoor installation
Protection Class IP00 / IP20 / IP23 (optional enclosure)
Standards IEC 60076 / ANSI / IEEE / GB (optional)
Typical Applications Industrial plants, data centers, commercial buildings, automation systems, precision equipment

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  • 1250kVA dry-type transformer, single-phase dry-type transformer, 1250kVA single

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