Dry-Type Transformer
A Dry-Type Transformer is a transformer that uses air or solid insulation instead of insulating oil for cooling and electrical insulation. Unlike oil-filled transformers, dry-type transformers do not contain flammable liquid, making them ideal for indoor installations and environments where fire safety is a priority.
Parameter | Typical Specification |
Transformer Type | Dry-Type Cast Resin / VPI Transformer |
Capacity Range | Up to 5 MVA |
Application | Commercial, Industrial & Critical Infrastructure |
Phases | 3-Phase |
Frequency | 50/60 Hz |
Primary Voltage | Up to 11 kV* |
Secondary Voltage | 415 V / 433 V / as required* |
Cooling | AN / AF |
Standards | IEC 60076-11 / applicable ANSI/IEEE standards |
Installation | Indoor/outdoor with suitable enclosure |
A dry-type transformer transfers electrical energy between voltage levels without using liquid insulation. Its construction makes it suitable for many indoor and environmentally sensitive applications.
Dry-type transformers can be suitable for data centers because they can be installed indoors and avoid liquid insulation. Selection should still consider capacity, thermal performance, installation environment, and project requirements.
Sizing requires evaluation of connected load, demand load, voltage, power factor, harmonics, future expansion, ambient temperature, and required capacity margin.
Potential advantages include indoor installation flexibility, reduced liquid-related risks, relatively straightforward maintenance, and suitability for commercial and critical infrastructure applications.
Yes. Dry-type transformers are used across industrial, commercial, infrastructure, and other applications where their electrical and environmental characteristics meet the project requirements.
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