Power Factor Corrects Wide Operating Voltage Range Silicon Controlled Rectifier Module

TDK Group recently introduced the new EPCOS TSM-LC-NC690 thyristor rectifier module. The new module's operating voltage range is further expanded for power factor correction (PFC) applications up to 690 V AC. The module performs 2-phase switching of the capacitor, eliminating the need for a neutral conductor. In addition, the new module is designed for applications with reactive powers from 40 kvar up to 75 kvar depending on the operating voltage and can switch currents up to 60 Amps.

The module can continuously monitor the voltage, phase and temperature, the performance is extremely reliable. And all other EPCOS thyristor modules, the TSM-LC-NC690 offers fast, noise-free, wear-free switching (with a switching time of just 5 ms), maintenance-free and current zero crossing Switching, thereby extending the life of the capacitor. In addition, the SCR rectifier module can effectively prevent dangerous over-current, so that the grid does not appear transient phenomenon. The module can be triggered by an EPCOS dynamic power factor controller, PLC or triggered directly by the process.

EPCOS TSM-LC-NC690 silicon controlled rectifier modules are suitable for dynamic PFC applications such as presses, welders, elevators, cranes and wind turbines under the order number B44066T3050E690.

the term

• Reactive power: When there is an inductive load such as a motor or a transformer in the line, there is a phase difference between the voltage and the current, resulting in reactive power. Reactive power does not work externally, but it consumes power.

• Power factor correction: By connecting PFC capacitors, reactive power can be almost completely compensated, reducing energy consumption and reducing environmental impact.

main application

• PFC applications including presses, welders, elevators, cranes and wind turbines

Key Features and Benefits

• Extended operating voltage range up to 690 V AC

• Reactive power up to 75 kvar

• Use thyristors for smooth, noise-free, wear-free switching without maintenance

• Switching time is only 5 ms

• Switch when the current crosses zero to extend the capacitor's life

• Self-monitoring