Power

Control up to 32 thyristor modules via RS485

28th May 2014
Nat Bowers
0

TDK has introduced the BR7000-I-TH and BR7000-I-TH/S485 power factor controllers. The BR7000-I-TH offers 12 relay outputs for capacitor contactors and 12 transistor outputs for thyristor modules and the BR7000-I-TH/S485 features an additional RS485 bus interface that allows up to another 32 EPCOS TSM-LC-S thyristor modules to be controlled. This bus interface also enables bidirectional communication with the thyristor modules.

The controllers are particularly well matched to the thyristor modules of the TSM-LC-S series for dynamic power factor correction with a rating of up to 55kvar. They detect and store key grid and capacitor parameters. This enables the implementation of complex PFC installations, which are also self-monitoring. This improves system protection and helps to increase the operating life of the capacitors. The devices are suited for power factor correction in one and three-phase industrial networks.

Both controllers already offer 20 pre-installed control series. In addition to the most important grid parameters such as voltage, current, frequency as well as reactive, apparent and effective power, they also measure the distortion of current and voltage (THD-I/THD-V). The graphics display the results up to the 33rd harmonic. These controllers are designed for voltages of 30-440VAC (L-N), or 50-760V C (L-L).

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