At COIL Innovation, we develop and manufacture state-of-the-art air-core dry-type
reactors for the international energy market — key components in power
transmission and distribution. Our site in Austria unites development, production
and quality control under one roof, giving you the opportunity to work in an
environment where innovation and quality truly matter.
We believe that the best solutions emerge through collaboration. That is why we
rely on a dedicated, well-connected team that works with passion and expertise to
advance a sustainable energy future. Technological excellence and agility define
our approach — and your ideas play an essential role in that.
Join a company that not only develops products but also shapes the future.
Here, you will find exciting projects, international perspectives, and the opportunity
to make a real impact together with us.
Every air-core reactor starts with the preparation of
the “winding mandrel”—a reusable form that acts as the coil’s skeleton. Our setup
specialists manage these preparations between runs, meeting unique
specifications for every single unit. At COIL Innovation, every reactor is a bespoke
piece of engineering.
In the second stage, aluminum cables are wound with high
precision around the mandrel. What sets us apart is our patented winding
technology, ensuring maximum efficiency and reliability. The deep technical
know-how of our operators ensures a seamless workflow for every custom-built
reactor, from start to finish.
Stability meets durability. In this step, the coil is completely
coated in epoxy resin and cured at over 100 °C to withstand the harshest
conditions. Our specialists monitor this process with precision and expertise,
ensuring that every unit meets our rigorous quality standards. At COIL,
impregnation is more than just a process—it’s a guarantee of excellence.
Dr. Alexander Gaun explains:
“Imagine the small, inconspicuous component inside a water tap that ensures
water flows evenly and filters out small particles such as lime or dirt. Without it, the
water would spray uncontrollably — everything would run wild and unregulated.
Air-core reactors in electrical grids work in a similar way: they limit sudden current
changes, bring the flow of electricity to a defined, stable level, and keep the voltage
within safe limits. This ensures that the electrical grid remains stable, protected
and reliable — even when unexpected fluctuations occur.
Right now, the energy system is undergoing a comprehensive transformation — with
the goal of becoming more sustainable, climate-friendly and resilient. This
transformation goes hand in hand with a deep expansion and modernization of
electrical infrastructure, and reactors play a key role in this process.”
Benefits at COIL Innovation
Become part of our team and benefit from many advantages.
Firmenradl.at
We enable our employees to use and purchase cost-effective bicycles.
Massages
We offer massages to maintain and increase the well-being of our employees.
Fitness Studio
We contribute to the annual membership fees of our employees at the Vitadrom fitness studio.
Flextime
We design the working hours of our employees flexibly
Training & Further Education
We support, promote, and challenge our employees with individual training and further education.
Lunch
We provide you with subsidies for lunch and offer fruit, coffee, and tea for free consumption.
Home Office
We create even more flexibility with an attractive home office option.
Pension Scheme
We increase the future pension entitlement of our employees with additional payments.
Firmenradl.at
We enable our employees to use and purchase cost-effective bicycles.
Massages
We offer massages to maintain and increase the well-being of our employees.
Fitness Studio
We contribute to the annual membership fees of our employees at the Vitadrom fitness studio.
Flextime
We design the working hours of our employees flexibly
Training & Further Education
We support, promote, and challenge our employees with individual training and further education.
Lunch
We provide you with subsidies for lunch and offer fruit, coffee, and tea for free consumption.
Home Office
We create even more flexibility with an attractive home office option.
Pension Scheme
We increase the future pension entitlement of our employees with additional payments.
COIL Innovation’s shunt reactors are used to compensate for capacitive reactive power generated by lightly loaded transmission lines or underground cables. They can be connected to the transformer’s tertiary winding or directly to the high-voltage (HV) bus or transmission line, supporting system voltages up to 550 kV.
Harmonic filter reactors are used in combination with capacitors and resistors to form filter circuits that reduce the harmonic content in power supply systems. Capacitor damping or inrush current limiting reactors are installed in series with the capacitor bank, while discharge reactors are connected to the bypass circuit.
Current limiting reactors are required to restrict short-circuit currents to levels compatible with the capability of other system components. Our product range includes applications for load flow control, load balancing, and bus-tie coupling. These reactors can be installed for the highest system voltages (up to 765 kV AC). COIL Innovation also supplies neutral grounding reactors, which are connected between the transmission grid’s neutral point and earth to limit line-to-ground fault currents.
The application of Flexible AC Transmission Systems (FACTS) involves various types of reactors: Thyristor-Controlled Reactors (TCR), Thyristor-Switched Reactors (TSR), Thyristor-Switched Capacitor Reactors (TSC),
Thyristor-Controlled Series Capacitor Reactors (TCSC), and Mechanically Switched Reactors (MSR).
Power Line Carrier (PLC) technology is a traditional, cost-effective, and reliable method of utilizing power supply systems for communication purposes. Connected in series with the transmission line, Line Traps exhibit low impedance at the power frequency and high impedance at signal transmission frequencies (30 kHz – 500 kHz). The international sales of Line Traps manufactured by COIL Innovation are handled by the Spanish-based company ARTECHE, which holds an exclusive agreement with COIL Innovation for a major part of the international market.
New Leadership Team at Coil Innovation GmbH
Sep 4, 2025 | News 2024
We are pleased to introduce the new leadership team of Coil Innovation GmbH: As of September 1, 2024, Ing. Josef Eder, ….
