
Inductive Voltage Transformer
Type VPU up to 550 kV and up to 6 secondary windings

Voltage transformers are used to step-down high voltage to define values and thus provide standardized, usable levels of voltage in a variety of power system protection, monitoring, and measurement applications while insulating the measurement and protection equipment from high system voltage.
Končar has been manufacturing voltage transformers type VPU since 1965 and has acquired over 45 years of service experience with over 15,000 units installed worldwide. The open core concept, with its significant advantages, is incorporated in these units and distinguishes them from solutions available on the market today.
The voltage transformers are designed with exceptional longevity and reliability, aiming for at least 50 years of service life.
Končar has been manufacturing voltage transformers type VPU since 1965 and has acquired over 45 years of service experience with over 15,000 units installed worldwide. The open core concept, with its significant advantages, is incorporated in these units and distinguishes them from solutions available on the market today.
The voltage transformers are designed with exceptional longevity and reliability, aiming for at least 50 years of service life.
Main Feature & Performance
Um: from 72.5 kV up to 550 kV
Up to 6 secondary windings
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
Stainless steel bellows oil expansion system
Minimum oil design
Maintenance-free
Accessories
Terminal for measuring dielectric dissipation factor (tgδ)
Oil level indicator
Off-load tapping on secondary winding (optional)
Internal overpressure indicator
Quality Assurance
Koncar Inductive Voltage Transformers are designed in compliance with IEC, ANSI/IEEE, GOST, AS, IS CAN/CSA, or any other relevant standard defining instrument transformers, and satisfying specific power transformer requirements. Product quality is assured through a certified quality standard, the ISO 9001, covering all aspects of design, production, and testing.
Koncar Instrument Transformers Inc. is ISO 14001 and OHSAS 18001 certified, ensuring environmental and occupational health and safety standards are met. And most importantly, our tireless ambition to satisfy our customers has sealed long-lasting quality and reliability onto our product


