ISG PRODUCT INFORMATION
VPI Transformers
Vacuum pressure impregnated dry-type transformers with application-specific thermal classes.

Internal dry transformer example. Confirm final product configuration.
APPLICATION & CONFIGURATION
Where it fits
This family offers vacuum pressure impregnated dry-type transformer configurations for commercial and industrial power distribution.
- Dry-type transformer configurations
- Natural-air and forced-air cooling options
- Thermal class selection to suit project requirements
- Project-specific rating and voltage selection
ApplicationsCommercial and industrial dry-type power distribution, subject to selected design
SUPPLIER-PUBLISHED PRODUCT INFORMATION
Technical specifications
Full source table reproduced from supplier brochure page 9. Confirm the selected configuration in the approved project submittal.
| RATING | 100 KVA to 5000KVA |
|---|---|
| VOLTAGE | upto 36kV |
| COOLING | AN / ANAF |
| CLASS | Temp. Class F,H & R |
| LEAD TIME | 16 — 18 weeks EXW |
Standards & certification scope
The shared CRT / VPI product page references UL Listed; IEEE C57.12.01; IEC 60076-11; ANSI / IEEE / CSA / DOE. Confirm classifications for the selected VPI design.
The source table states 16–18 weeks EXW; accompanying narrative states 14–16 weeks. Confirm the current factory schedule with your quotation.
Supplier-published configurations. Confirm the selected ratings, dimensions, applicable standards and listing scope in the project quotation and technical submittal.
PROJECT TIMING & QUALITY
Move from specification to schedule.
Factory-direct coordination keeps equipment scope, pricing and production planning connected. Share your required site-delivery date and energization milestone early so ISG can coordinate the selected configuration, available factory slot and shipment plan.
Quality is specified and documented: confirm applicable standards, inspection, routine testing and warranty coverage in the manufacturer’s quotation and approved technical submittal. Lead time is confirmed for the selected configuration and current factory schedule.
Share your project timelineA STRONGER REQUEST FOR QUOTATION
What should the
factory review?
Send the available requirements. We’ll identify what still needs confirmation.
- What quantity, kVA rating, primary and secondary voltages and cooling arrangement are required?
- Which thermal class, installation conditions and listing documentation must the factory confirm for the selected VPI design?
- What site-delivery date is required so the factory can confirm its current schedule against the differing brochure estimates?
