TDK Corporation has announced the new EPCOS TSM-LC-S thyristor module for dynamic power factor correction (PFC). Designed for voltages of 200 V AC t0 440 V AC (50/60 Hz), it is suitable for compensating reactive powers of up to 55 kvar. Installation takes place via the system bus (RJ45). Integrated measuring electronics logs key operating data such as voltage of the grid and current, temperature, and switching state of the PFC capacitor. The maximum values of these parameters are simultaneously stored. The data is transmitted via the interface to the power factor controller and processed further, enabling comprehensive capacitor and system protection. In addition, the TSM-LC-S features a high-contrast OLED display for the operating data and alarm and error messages.
As with all EPCOS thyristor modules, the TSM-LC-S (B44066T1050E402) operates silently with no wear and is maintenance free. It has a switching time of only 5 ms. The module also increases the operating life of the capacitors, as it switches at the zero crossing of the current and monitors the capacitor current. Dangerous overcurrents are avoided and the power line is not exposed to transients.
The EPCOS TSM-LC-S thyristor module is especially suited for PFC applications such as those with presses, welding machines, elevators, cranes and wind turbines.
For more information, visit www.epcos.com.