CTU33 - thyristor switching module

The CTU33 is a thyristor switching module designed for interphase reactive power compensation by switching single-phase compensation capacitors. It is ideal for operations with rapid or periodic load changes, such as welding shops, pressing plants, elevators, and cranes.

Key Features:

• Zero-Voltage Switching: The module switches at the moment when the voltage difference between the capacitor and the system is zero, significantly reducing current surges and extending the lifespan of capacitors.
• Fast Response: Activation occurs within 10 ms of receiving a signal from the reactive power controller, allowing up to 50 capacitor connections per second without the need for discharging.
• Overheat Protection: An integrated temperature sensor protects semiconductors from damage due to high temperatures; the module shuts down if the temperature exceeds 80 °C.
• Control Voltage: 24 VDC or 230 VAC.

Technical Specifications:

Advantages:

• Elimination of Current Surges: Zero-voltage switching minimizes transients, protecting other electronic devices from interference.
• Extended Capacitor Lifespan: By reducing current surges and employing zero-voltage switching, capacitor wear is minimized.
• High Switching Frequency: Allows up to 50 connections per second, ideal for applications with rapid load changes.

Applications:

The CTU33 is suitable for use in operations with significant load asymmetry and rapid or periodic load changes, such as:

• Welding shops
• Pressing plants
• Elevators
• Cranes