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For power, distribution and industrial applications
VPI (Vacuum Pressure Impregnated) Transformers combine dry-type safety with improved dielectric strength, offering clean, low-maintenance performance.
Wide Rating Range – CRT up to 20 MVA / 33 kV and VPI up to 15 MVA / 17.5 kV, suitable for commercial, industrial, and utility environments.
Used primarily in indoor distribution, industrial plants, and environments requiring enhanced fire safety.
Proven Reliability – Backed by successful short-circuit tests such as the 3 MVA Multi-Winding VPI.
VPI units handle harmonic-rich loads in converter systems and provide stable operation for Drive application, test benches, isolation setups, and auto-transformer configurations.
Fire-Resistant & Moisture-Proof Design – The encapsulated windings impregnated insulation (VPI) provide excellent resistance against humidity, dust, chemical contaminants, and flame propagation.
Low Maintenance – No dielectric fluids, reduced monitoring needs, and minimal risk of insulation degradation.
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Specifications
| Parameter | Value |
|---|---|
| Rating | 100 kVA to 15 MVA |
| Voltage Class | Up to 17.5 kVA |
| Frequency | 50/60 Hz |
| No of Phase | Single & Three Phase |
| Cooling | AN/AF |
| Vector Group | As per customer requirement |
| Winding Material | Cu / Al |
| Tapping | OCTL, OCTC, OLTC |
| Insulation Class | F/H/R |
| Applicable Standards | IS 11171, IEC 60076-11, IEC / EN 61378, EN |
Installation ManualTechnical Information
| Parameter | Value |
|---|---|
| Developed for LV and MV drives for phase shifting winding for 24 and 36 pulse up to 54 pulse. | Three Phase up to 15 MVA |
| Special industrial applications like drive control systems and distribution networks with IP54 construction | |
| Suitable for operations up to 220°C (up to Class R Insulation) | |
| Multi-winding for industrial environment | |
| Special testing transformer for testing of Drives and Inverters | |
| Core loop testing transformer for turbo genset | |
| Suitable for harmonic loading | |
| High current taps for LV winding | |
| With or without enclosure | |
| Supply segment | Infrastructure |
| Industries | |
| OEMs | |
| Distribution Network |
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