OPEN WOUND TRANSFORMERS

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#OPEN WOUND TRANSFORMERS

OPEN WOUND TRANSFORMERS

Vacuum Pressure Encapsulated (VPE) transformer was developed to meet stringent shipboard applications for the US Navy. ABB uses a multiple sealant process on VPE transformers, which provides enhanced protection against moisture, salt air, dust, and industrial contaminants. The sealing process uses resin, which provides excellent dielectric strength and extended life expectancy. VPE transformers provide excellent mechanical and short circuit strength, no danger of fire or explosion, less weight than comparable cast coil units.

Vacuum Pressure Impregnated (VPI) transformers are vacuum pressure impregnated with a high temperature polyester varnish. VPI ventilated dry-type transformers are designed to meet most commercial and industrial applications. VPI transformers provide excellent mechanical and short circuit strength, no danger of fire or explosion, and no liquids to leak.

 

ABB’s VPE and VPI transformers are manufactured in ISO 9001 certified factories and are UL listed.

Product scope

·         Up to 30 MVA

·         High voltage up to 36 kV

·         Low voltage up to 24 kV

·         Classes E2, C2, F1

·         Frequencies: 50 Hz, 60 Hz and 16 2/3 Hz

·         Cooling: AN / ANAN / ANAF / AFWF

·         Insulation system temperature: F and H

·         Partial discharges <10 pC

·         Protection degree: IP00 - IP54

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