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Air-core Reactors Video

Reactors

Long life with maintenance-free operation and environmentally friendly design

For more than 50 years, GE has supplied a broad range of reactors to markets around the world. With proven industry expertise, stringent quality controls, first class materials and full international compliance, GE’s reactors are designed to meet a wide variety of customer needs.

GE’s environmental-friendly, long-life, maintenance-free reactors enhance system performance and power quality from transmission and distribution to industrials, improving network operational efficiency. This results in considerable savings for customers and reduces the environmental impact of their operations.

GE’s team of experts analyze our customer’s power compensation needs from low voltage current limiting to high voltage shunt/series applications and engineer the right solutions to provide optimal efficiency and economy.

GE Advantage

Air Core

Iron Core

Applications

Manufacturing

References

High Voltage Reactors advantage - watch the video

Air-core Reactors

GE’s air-core reactors (ACR) provide a linear response of impedance versus current which is essential for numerous applications. GE’s reactors consist of aluminum or copper conductors, which are insulated with first class insulation materials. In encapsulated design, the conductors are mechanically immobilized and encapsulated by epoxy impregnated fiberglass, which assure high hygroscopic characteristic and long service life.

Why GE’s air-core reactors?

Complete range of products and solutions in power compensation
Long term expertise and know-how in power compensation projects
Full line supplier with synergies between business and product lines
Proven quality and performance of the products
Worldwide presence with customer intimacy and proximity
State-of-the-art in manufacturing process and machinery

Solution portfolio
Our portfolio of air-core reactors includes cost-effective solutions for power generation, transmission and distribution utilities, and industry:

Shunt reactors
Current-limiting reactors
Neutral-earthing reactors
Harmonic filter reactors
Damping reactors

Smoothing reactors
Arc-furnace series reactors
Power flow control reactors
Motor starting reactors
Special applications, such as test lab reactors

Series Application

Challenge

Integration of new power plants, transmission lines, power transformers and capacitor banks typically increases the normal, transient and short-circuit currents of the transmission and distribution networks. These new current levels exceed the current carrying capabilities of existing equipment.

Solution

GE’s series reactors provide a cost-effective solution to limit and/or reduce the excessive current levels under normal, transient and short time conditions, assuring quality, reliability and continuity of the power supply.

Shunt Application

Challenge

Transmission and distribution systems operating at low loading levels cause voltage increases in busbars and lines, resulting in insulation failures of the equipment on the grid and overall system instability.

Solution

GE’s shunt reactors provide system voltage control, operational flexibility, stability and reliability assuring long equipment life and continuity of power supply.

Iron-core Reactors

HV iron-core reactors are connected in series with the capacitor units to form a series resonant circuit with very low impedance. GE’s line of iron-core reactors are ideal for a variety of applications including capacitor banks formed by several steps, several capacitor banks connected in the same busbar, and capacitor bank installations with risk of resonance or with presence of harmonics.

Key benefits

Reactive power compensation (power factor correction) in networks with harmonics
Reduction of inrush currents that flow from step to step of the capacitor banks when switched
Avoiding the risk of resonance as the LC circuit is having a resonance frequency below the first existing harmonic
Decrease the level of harmonic distortion, as the circuit is also having a certain tuning frequency at which the branch will offer low impedance path for harmonic currents

Applications for renewable generation, wind and solar farms:

Shunt reactors (up to 500kV)
Short-circuit current-limiting reactors (up to 800kV)
Tuning reactors for harmonic filters and MSCDN
Damping reactors for shunt capacitor banks

Applications for FACTS, HVDC LCC and VSC, and transmission and distribution substations:

Thyristor-controlled and thyristor-switched reactors for SVC
Phase-reactors for STATCOM
Tuning/blocking reactors for AC/DC, harmonic filters and MSCDN
Damping reactors for TSC and shunt banks
Smoothing and valve reactors for HVDC
Shunt reactors (up to 500kV)
Short-circuit current-limiting reactors (up to 800kV)
Power-flow control reactors
Neutral grounding reactors

Applications for buildings and cities, oil and gas, and industry and infrastructure:

Shunt reactors (up to 500kV)
Short-circuit current-limiting reactors (up to 800kV)
Tuning reactors for harmonic filters and MSCDN
Damping reactors for shunt capacitor banks
Arc-furnace reactors
Motor-starting reactors
Laboratory reactors (special applications)

Manufacturing Excellence

GE manufacturing plants are highly automated digital factories that use the GE Predix platform for machine learning and modeling.


Itajubá, Brazil Our Itajubá factory supplies a broad range of engineered equipment for all segments and commercial regions, by means of state-of-the-art machinery and design criteria, first class raw material, strict production and quality controls, and very experienced staff. Products manufactured in Itajubá, Brazil: Air-core dry-type reactors High voltage capacitor units and banks High voltage harmonic filters AIS products (instrument transformers, circuit breakers, disconnectors and line traps)

Tampere, Finland Our factory in Tampere was built in 1983 and is home to the Nokian capacitors brand. Tampere has more than 30 years factory-based experience making high and low voltage capacitors and air core reactors. In 2005, a new reactor factory was added to provide components and complete solutions for all PFC and filtering problems. Tampere has further improved its processes with recently renewed IT systems. Our Tampere factory is ISO 9001, ISO 14001 and OHSAS 18001 certified. Products manufactured in Tampere, Finland: High voltage capacitor units and banks Low voltage capacitor units and banks Air core reactors

References

For more than 50 years, GE has provided global support and advanced technologies to +1,000 customers in 80 countries, offering a broad range of reactors for many market segments. GE is an industry leader in design and manufacturing process with compliance in international technical and certification standards. Below are a select representation of our projects, a complete reference list is available upon request.

1. Canada (2016) HVDC Smoothing Reactors AC/DC Filter Reactors	5. Peru & Colombia (2012-2018) Current Limiting Reactors Neutral Grounding Reactors Damping & Filter Reactors	9. Scotland (2002) FACTS (SVC)	13. South Korea (2014) HVDC Smoothing Reactors
2. USA (1995-2018) FACTS – SVC & FSC Shunt Reactors Current Limiting Reactors Neutral Grounding Reactors Damping & Filter Reactors	6. Chile (2010-2017) FACTS – SVC & FSC Current Limiting Reactors Neutral Grounding Reactors Damping & Filter Reactors	10. France, Germany and Netherlands (2002-2018) Damping & Filter Reactors Neutral Grounding Reactors	14. Thailand (2006-2018) Damping & Filter Reactors
3. Mexico (2000-201) FACTS – SVC & FSC Current Limiting Reactors Damping & Filter Reactors	7. Uruguay (2010) Melo HVDC	11 Turkey (2008) FACTS (SVC)	15. Malaysia (2002-2018) Damping & Filter Reactors
4. Brazil (2012) Rio Madeira HVDC	8. Brazil (1976-2018) FACTS (SVC & FSC) Current Limiting Reactors Neutral Grounding Reactors Damping & Filter Reactors Arc-Furnace Reactors Laboratory Reactors	12. South Africa (1998-2018) Current Limiting Reactors Damping & Filter Reactors	16. Australia (2010-2018) Shunt Reactors Damping & Filter Reactors