Coil Innovation
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Coil Innovation specializes in the design, manufacture and sales of aircore, dry-type reactors that are utilized in the generation, transmission and distribution of electrical power as well as industrial applications such as electric arc furnaces.
Product range
CURRENT LIMITING AND NEUTRAL GROUNDING REACTORS
Current limiting reactors are needed to limit short-circuit currents to a level compatible with the capability of other system components. The product range includes load flow control, load balancing and bus-tie reactors. They can be installed up to the highest system voltages (765 kV). The Company supplies neutral grounding/earthing reactors that are connected between the neutral of the transmission network and ground/earth in order to limit the line-to-earth fault current.
HARMONIC FILTER AND CAPACITOR REACTORS
Harmonic filter reactors are used in combination with capacitors and resistors to form filter circuits that reduce the harmonic content in power systems. The Company’s capacitor damping or inrush current limiting reactors are installed in series with the capacitor bank, while its discharge reactors are connected to the bypass circuit.
REACTORS FOR SHUNT AND FACTS APPLICATIONS
Coil Innovation’s shunt reactors are used to compensate capacitive reactive power generated by lightly loaded transmission lines or underground cables. They can be connected to the transformer tertiary winding or directly to the high-voltage (HV) bus or transmission line with system voltages up to 500kV. Flexible alternating current transmission systems (FACTS) application includes several types of reactors thyristor-controlled shunt reactors (TCR), thyristor-switched reactors (TSR), thyristor-switched capacitor reactors (TSC), thyristor-controlled series capacitor reactors (TCSC), and mechanically switched shunt reactors (MSR).
REACTORS FOR MECHANICALLY SWITCHED CAP BANKS
The concept of mechanically switched capacitors with damping network (MSCDN) represents a cost-effective solution to provide reactive power compensation and harmonic control. A typical installation consists of large capacitor banks, large reactors and damping resistors, arranged as a C-type harmonic filter directly connected to the high-voltage system. Reduced losses are achieved at fundamental frequency by means of a resonance between the reactor and an auxiliary capacitor.
REACTORS FOR HVDC AND UHVDC APPLICATIONS
High and ultra-high voltage direct current (HVDC / UHVDC) transmission schemes are used for bulk power transmission. The systems are also used for back-to-back and sea cable interconnections, as well as for the grid connection of renewable energy facilities such as offshore windfarms. Depending on the converter technology, LCC (line-commutated converters) or VSC (voltage source converters), these schemes include smoothing or converter reactors, AC and DC harmonic filter reactors and PLC-noise filter reactors. Smoothing reactors reduce the ripple current magnitude that is present in a DC system. Smoothing reactors are installed in HVDC schemes with system voltages up to 1100kV and may reach 250MVAr equivalent power ratings (50Hz equivalent power) per coil unit.
REACTORS FOR INDUSTRIAL AND MOBILITY APPLICATIONS
Reactors for industrial applications may be, for example, smoothing reactors used in power electronics applications such as variable speed drives and uninterruptible power supply systems (UPS). Smoothing and converter reactors are further used for mobility applications, such as for railway converters. Typical industrial applications are Static Var Compensation (SVC) and STATCOMs employed in steelworks or smelting operations with electric arc-furnaces (EAF). In the power supply of electric arc-furnaces (EAF) series reactors may also be installed, called arc-furnace reactors or sometimes buffer reactors. The function of these reactors is to help optimize the power factor for the purpose of stabilizing the electric arc during the melting process and to reduce the electrode consumption. They are typically equipped with taps for inductance adjustment.
POWER LINE CARRIER REACTORS (LINE TRAPS)
Power line carrier (PLC) technology is a traditional, economical and reliable method of power systems communication. When connected in series with the transmission line, PLC reactors (line traps) present low impedance at power frequency and maintain high impedance at power line carrier frequencies (30kHz500kHz). The international sales of line traps produced by Coil Innovation are handled by the company ARTECHE located in Spain, which has an exclusive agreement with Coil Innovation.
Advantages
CERTIFIED
Coil Innovation is built on an effectively integrated, ISO-certified management system which satisfies all requirements on quality and environmental protection as well as employee health and safety aspects. This integrated management system has been certified according to:
ISO 9001: 2015 Quality Management System
ISO 14001: 2015 Environmental Management System
ISO 45001: 2018 Occupational Health and Safety Management Systems
PATENTED
The R&D vitality of Coil Innovation is verified by a number of patented innovations:
Patented winding manufacturing technology (online-conductor-processing)
Patented low-noise design (silent coil technology)
Patented seismic design for heavy coils (pendulum suspension mounting)
Patented 3-phase arrangement of thyristor-controlled reactors (TCRs)
TESTED
Coil Innovation has invested in modern test laboratories, such as a high-voltage test laboratory and an industry leading acoustic test laboratory. These testing facilities include:
Impulse voltage test system
AC high voltage test system
Test system to perform AC load tests, consisting of a transformer aggregate, a rotary power converter system, a capacitor bank and precision instrument transformers
Test system to perform DC load tests, consisting of a transformer aggregate, a rectifier and precision current shunts
Fibre optic temperature measurement system and thermovision camera
Programmable AC power source, high precision watt meter and high precision microohmmeter
Sound and vibration measurement systems, including harmonic current excitation and laser vibrometers
Reference Projects
More than 95% of the high quality reactors manufactured by Coil lnnovation are exported to customers all over the world. Existing Canadian customers include: Altalink, BC Hydro and Hydro Quebec.
About the company
Coil Innovation was founded in July 2004 as a private limited company (GmbH) by a team of three persons, all of whom possessing a wealth of industry experience and product knowledge. Together they hold the majority of the Company’s shares, with the remainder being controlled by two strategic partners, both of which are key suppliers of Coil lnnovation.
The headquarters of Coil lnnovation is situated in Eferding, a village in the heart of Upper Austria, in a facility built on a site approximately 32,500 m² (350,000 ft² or 8 acres) in area.
Since the start of production in May 2005, the company has undergone multiple expansions and improvements and now houses 5,000 m² (54,000 ft²) of production area and 1,000 m² (11,000 ft²) of office space where more than 100 highly qualified employees are engaged in the development, design, manufacture and sales of air-core dry-type reactors.
Factory Location:
Nikola-Tesla-Strasse 1
4070 Eferding, Austria
North American Office:
125 Edinburgh South Drive, Suite 201
Cary, NC 27511, USA
Composite Power Group is the national representative of Coil Innovation in Canada. We are happy to assist you with any inquiries regarding the technology, the product or the application outlined above.
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