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LV Thyristor Switched Detuned Capacitor Banks

Power Factor Correction Systems

Power factor correction is a technique used in electrical systems to componsate reactive power and improve the power factor. LV Thyristor Switched Detuned Capacitor Banks are specifically designed to manage this process efficiently. These low-voltage systems combine harmonic filtering and power factor correction capabilities, increasing energy efficiency while minimizing adverse impacts on the grid.

Detuned reactors are used to mitigate the detrimental effects of harmonics on power factor correction systems. Thyristor switches ensure fast and effective switching, enabling instantaneous reactive power compensation. In combination, these components significantly improve power quality and system efficiency.

Why Thyristors used in Power Factor Correction?

Thyristors are electronic switching components that serve a crucial role in electrical grids by balancing reactive power and improving power factor. These semiconductor devices possess the capability to control high voltage and current levels effectively. In power factor correction systems, thyristors are used to rapidly and precisely connect or disconnect capacitor banks and reactors to and from the grid.

The use of of thyristors in power factor correction systems offers significant benefits, particularly beneficial in industrial environments where load variations are frequent and rapid. Unlike mechanical contactors, thyristor switches exhibit a much faster response, ensuring immediate compensation for reactive power requirement. Furthermore, thyristors are durable and require minimal maintenance, resulting in reduced operational costs and increased system reliability.

Operating Data

Rated Voltage230-1000V
Rated Powerup to 2000kVAr (Please contact for your requests)
Rated Frequency50/60Hz

Standard

  • TS EN 61439- 1, TS EN 60076 – 6, TS EN 60831-1
  • CE Conformity

Electrical Design

Short Circuit ProtectionNH Fuse Switching Disconnector
Power FactorMicroprocessor based Power Factor
Correction Relay
SwitchingThyristor Switch
Detuning5.67% – 7% -14% Detuned Reactors

Enclosure Design

Enclosure Protection DegreeIP20 – … – IP54
CoolingNatural / Forced Ventilation
MountingFloor Standing, Indoor / Outdoor
Enclosure ConstructionElectrostatic Painted, Galvanized 2mm Steel Sheet

What is the Function of a Thyristor and How Does It Operate?

In industrial facilities with frequent and rapid load changes, what does a thyristor do, and how does it work? A thyristor is a semiconductor switching device typically used in high-power electrical circuits. It has a four-layer (P-N-P-N) structure and three terminals: anode (A), cathode (K), and gate (G). A thyristor operates using a direct current (DC) source and is triggered into conduction by a small signal applied to the gate terminal.

The fundamental operation of a thyristor begins with a triggering current applied to the gate terminal. This allows current flow between the P-N-P-N layers, turning the thyristor into a conductive state. Once conduction starts, the thyristor remains on even if the gate signal is removed, until the anode-cathode current drops to zero or reverses polarity.

Thyristors are widely used in power electronics for various applications such as motor speed control, power factor correction, AC-DC converters, and regulators. Their high current and voltage capacities make them indispensable in industrial automation and energy management systems.

Benefits of Thyristor Switched Detuned Power Factor Correction Systems

Thyristor switched detuned power factor correction systems are widely employed in modern industrial settings to improve power quality. These systems offer the following benefits:

  • Reduced risk of resonance
  • Switching at zero crossings for improved efficiency
  • Fast switching capability
  • Suppression of harmonic current generation
  • Extended capacitor component life
  • Avoidance of unnecessary main switch tripping
  • Optimal power factor improvement
  • Reduces unexpected maintenance costs, production downtime and energy losses

Characteristics of Thyristor Switched Detuned Power Factor Correction Systems

The characteristics  of thyristor switched detuned power factor correction systems;

  • Modular system
  • Copper busbars
  • The configuration of the system includes placing the busbar at the top, followed by a sequence of components including fuse switching disconnector, thyristor switch, detuned reactor and capacitors. This design incorporates advanced thermal management techniques to ensure the capacitors are protected from overheating and simplify maintenance tasks.

Ergun Elektrik LV Thyristor Switched Detuned Power Factor Correction Systems

Ergun Elektrik offers professional solutions for LV Thyristor Switched Detuned Power Factor Correction Systems, a part of its extensive range of electrical power quality products. For more details on solutions tailored to your specific requirements, please contact us.