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MV Iron Core Detuned Reactors

Power Factor Correction Systems

MV Iron Core Detuned Reactors are a critical component in MV power factor correction systems installed in MV installations. These reactors are specifically designed in a detuned configuration to prevent the occurrence of resonance between capacitors and inductances within the system, as well as to mitigate the resulting total current and voltage harmonic distortions.

In MV installations, MV power factor correction systems are used to compensate for the reactive power of the connected loads. These capacitor banks incorporate detuned reactors to avoid resonance between capacitors and inductances, thereby preventing the increase in total current and voltage harmonic distortion levels. By creating a tuned circuit in series with the capacitors, detuned reactors effectively prevent the rise in harmonic distortion and eliminate resonance within the facility.

Iron Core Coils

Iron core coils, also known  as choke coils, are made using a core comprised of thin insulated iron sheets that are bonded together in multiple layers. The coil is then wound around this multi-layered core. The iron material undergoes a special treatment process to create an extremely thin conductive composition. Iron core coils are commonly used in low frequency applications, such as serving as source materials for transformers and reactors.

Operating Data

Rated Voltage 3…36kV
Rated Power Up to 4000kVAr
Rated Frequency 50/60Hz
Detuning Degree 7% -14%
Inductivity Tolerance ± 3%
Insulation (winding-core) 3kV
Phase 1-3

Standard

  • TS EN 60076 – 6

Safety and Protection

Protection Class IP00, Indoor mounting
Insulation F Class, 155ºC
Impregnation H Class Vacuum Varnish Impregnation
Cooling Natural Cooling/T40

Design

Design Iron Core, Dry Type
Winding Copper / Aluminium
Core Steel Sheet Ensuring Low Loss
Terminals Copper Bar, Terminal Blocks or Cable Lugs

What is a Detuned Reactor?

Detuned reactors form a tuned circuit in series with capacitors to mitigate the escalation of total current and voltage harmonic distortion levels, as well as avoiding t resonance formation within facilities. This improves the power factor in facilities while also preventing the rise of harmonic currents in the system. Additionally, they provide economic benefits such as extending the service life of the capacitors and redusing unpredictable maintenance and repair expences. Owing to these advantages and characteristics, detuned reactors ensure the facility operates in a more secure, stable, and economical manner.

What is the Detuning Degree?

Now, let’s answer the question, “What is the detuning degree?” The detuning degree is a measurement that represents the ratio of inductive reactance to capacitive reactance in electrical circuits. It illustrates the interaction between the inductive and capacitive components within a circuit, and is considered an indicator of the blocking characteristic in front of the capacitor.

Additionally, the detuning degree is equal to the square of the ratio between the grid frequency and the resonance frequency, making it a key parameter for determining the resonance condition of an electrical circuit. The detuning degree plays a crucial role in assessing the stability and performance of electrical circuits.

Benefits of MV Iron Core Detuned Reactors

Iron-Core Detuned Reactors, a type of reactor employed to mitigate the risk of resonance and regulate harmonic currents in electrical systems, offer numerous advantages. The benefits of MV Iron-Core Harmonic Filter Reactors can be summarized as follows:

  • Elimination of Resonance Risk: Electrical systems can resonate at the natural frequency between inductive and capacitive components, causing unwanted voltage and current oscillations. Iron-core detuned reactors mitigate this risk, promoting more stable and robust system operation.
  • Harmonic Current Control : Harmonic currents in electrical systems can degrade power quality and damage equipment. Iron-core detuned reactors regulate these harmonic currents, improving power quality and extending equipment life.
  • Capacitor Service Life Extension: Capacitors play a vital role in improving power factor, but high harmonic currents can shorten their service life. By reducing harmonic currents, iron-core detuned reactors extend the life of capacitors and improve the energy efficiency of the system.
  • Reduced Unexpected Maintenance Expences: The use of detuned reactors ensures more stable system operation, decreasing the need for unexpected maintenance and repairs. Additionally, reduced energy losses minimize production downtime.

Characteristics of MV Iron Core Detuned Reactors

Iron-core detuned reactors are a specialized type of reactor that play a vital role in electrical systems and offer numerous advantages. The key characteristics of MV Iron Core Reactors that ensure reliable, noiseless, and long-lasting operation are as follows:

Low-Loss:

These reactors minimize energy dissipation, thereby enhancing system efficiency.

High Linearity:

The reactors provide stable performance and operate with the necessary precision.

Extended Operational Lifespan:

Constructed using durable materials, the reactors function smoothly for an extended period and reduce maintenance demands.

Ergun Elektrik MV Iron Core Detuned Reactors

Ergun Elektrik’s MV Iron Core Detuned Reactors, specially designed and manufactured by our experienced team according to the capacitance value and tuning frequency of the capacitor they are used with, are low loss, highly linear and long lasting. Ergun Elektrik’s MV Iron Core Detuned Reactors are preferred in a wide range of applications, from industrial plants to infrastructure projects. If you would like to know more about our MV Iron Core Detuned Reactors, please contact us.