Introducing the VTI Series
Tired of voltage fluctuations at the distribution grid? Looking for an innovative solution to regulate voltage for your clients? Trying to boost grid accommodation rate for your renewables? Frustrated with bulky, outdated tap changers that take up too much space, drive up maintenance costs, and make installations a nightmare?
It's time to move on! Switch to our VTI series – the compact tap interrupter that saves you big money, installs easily, and even supports retrofits. No more complex assemblies; everything's streamlined in just one vacuum bottle.
Ratings and Configurations
Why Choose the VTI Series?
The VTI series is more than just a component – it's a significant advancement in vacuum interrupter technology. Powered by innovative complex mechanical mechanisms inside a single vacuum chamber and advanced manufacturing for larger, intricate designs, it combines tapping and interruption functions into one seamless unit.
Ideal for dynamic voltage adjustment in transformers, the VTI series delivers rock-solid stability, even with fluctuating loads from renewables like windmills and solar panels, high-demand urban areas, or EV charging networks.
Key Advantages That Give You the Edge
These benefits come from our core innovation: sophisticated mechanics sealed inside a single vacuum envelope for multifunctional performance, with top-tier vacuum integrity and rapid dielectric recovery.
100% Oil-Free, Zero Contamination
Ultra-high vacuum sealing technology (10⁻⁶ Pa) completely avoids carbonization and oil pollution, fully compliant with the EU 2030 oil-free transformer ban.
89% Compact Volume
Integrated modular design reduces volume to just 1/9 of a traditional OLTC, saving 20–25% on copper and steel costs.
Easy Installation and Retrofits
Upgrade existing transformers or integrate into new wind, solar, or EV projects without major overhauls.
Superior Reliability
Precision arc quenching handles high voltage fluctuation with over 500,000 operations and minimal maintenance — no more frequent downtime in critical DSO/DNO operations.
Future-Proof for Smart Grids
Boosts automation, fault protection and resilience, ready for renewables, EV infrastructure, and variable loads.
Performance Comparison vs. Traditional OLTC
Single Vacuum Chamber
Tapping and interruption all in one bottle — no external linkages or weak points.
Standout Features Driven by Advanced Technology
Durable and Eco-Friendly
Maintenance-free for 20–30 years, joining millions of units transforming grids worldwide.
Production-Ready
Fully prototyped, and manufactured at our production base. Final certifications underway — hitting the market soon.