Dry Type Transformer
Air-cooled, fire-safe transformers for indoor, high-safety, and environmentally sensitive installations.
ABC Make Dry Type Transformers
We supply both indoor and outdoor dry type transformers, including voltage dry type variants. Ratings go up to 2,500 kVA. The standard voltage class is 3.3, 6.6, and 11 kV - other classes are available upon request.
The applicable standard is IEC 60726. Cooling is provided in two modes: AN (Air Natural) and AF (Air Forced). Services include Indoor and IP 23, with other configurations available per client requirement.
Frequency is 50 Hz / 60 Hz. Vector group is Dyn5 / Dyn11 or any other as required. Insulation class is F Class / H Class or any other IEC standard required. Winding material is exclusively Copper.
Off-circuit or on-load tap changers are available with taping range per customer specifications. Impedance is in line with applicable standards. The life expectancy depends on operational conditions - winding insulation may be affected if the transformer is subjected to sustained overload conditions causing temperature rise.
Key Specifications
| Rating | Up to 2,500 kVA |
| Voltage Class | 3.3 / 6.6 / 11 kV |
| Standard | IS 11171, IEC 60726 |
| Cooling | AN / AF |
| Service | Indoor, IP 23 |
| Frequency | 50 Hz / 60 Hz |
| Vector Group | Dyn5 / Dyn11 |
| Insulation | F Class / H Class |
| Winding | Copper |
| Taping | OCTC / OLTC |
Advantages of Dry Type Transformers
Easier to maintain compared to other transformer types, making them more economical in the long run.
No flammable liquids - very low risk of fire or explosion, safe for people, property, and seismic events.
Environmentally safe with excellent short circuit resistance and high mechanical strength.
Immune to pollution and offers excellent moisture ingress resistance.
No fluctuation in temperature - void-free insulation ensures consistent performance.
Causes much less pollution during installation and is significantly easier to install than oil-type transformers.
ABC Make
VPI (Vacuum Pressure Impregnated) Transformer
ABC Make dry type transformers are manufactured using F (Fiber) or H (NOMEX) class insulation with or without enclosure as per site/client requirement. Our transformers are designed to save space, work more efficiently, and generate less heat. Sturdily constructed using the best quality components - custom made per client specifications. Primarily used at indoor locations or densely populated areas.
Technical Specifications
| Parameter | Specification |
|---|---|
| Ratings | Up to 2,500 kVA |
| Voltage Class | 3.3 kV / 6.6 kV / 11 kV (other as required) |
| Applicable Standards | IS 11171, IEC 60726 |
| Cooling | AN – Air Natural / AF – Air Forced |
| Service | Indoor, IP 23 (other as required) |
| Frequency | 50 Hz / 60 Hz |
| Vector Group | Dyn5 / Dyn11 (other as required) |
| Insulation Class | F Class / H Class (as per requirement) |
| Winding Material | Copper |
| Taping | Off-Circuit or On-Load Tap Changers (as per customer specification) |
| Impedance | In line with applicable standards |
Enquire About Dry Type Transformers
Specify your kVA, voltage class, and application - our team will advise the right design.
Request a Quote