Power Voltage Transformer

Type VPT up to 550 kV and capacity up to 333 kVA
Single-phase insulated Power Voltage Transformers are intended to be connected to a high voltage system and used for supplying low voltage level electrical power to substations or remote consumers in areas where the distribution grid is not accessible.

One of the latest developments started in 2006, the Power Voltage Transformer type VPT is based on the Inductive Voltage Transformer type VPU which brings more than 45 years of both design and service experience. The VPT inherits the same open-core concept and all its benefits.

Conceptually a hybrid between a power transformer and an instrument transformer, the role of this type of unit is to convert energy directly from high to low voltage for the supply of substations or remote consumers.

Power Voltage Transformers are designed with exceptional longevity and reliability, aiming for at least 50 years of service life.
Um: from 72.5 kV up to 550 kV
Rated output: from 5 kVA up to 333 kVA
Direct connection to high voltage system and power transformation to low voltage
Partial discharge free on power-frequency withstand voltage
Unique ferroresonance immune design (open type magnetic core)
Explosion safety - Internal arc resistant
Stainless steel bellows oil expansion system
Extreme temperature range available (-60 to +60 °C)
Extensive experience in seismically active regions
Minimum oil design
Compact size and light-weight design – easy transport and installation
Maintenance free
Off-load tapping on secondary winding (optional)
Internal overpressure indicator for online monitoring

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