Thyristor Switched Capacitor Bank (TSCB)

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.

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Functions & customer benefits

Key functions

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Customer 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

Applications

Thyristor Switched Capacitor Bank (TSCB)
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