TDK Unveil Two New PFC Controllers With Expanded Functionality

25th April 2013

ES Admin

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TDK Corporation has announced two new types of the BR7000 series of EPCOS power factor controllers. The BR7000-T power factor controller offers 15 transistor outputs instead of 15 relay outputs. It is designed for applications that require fast switching operations and enables delay-free switching of thyristor modules, such as the EPCOS TSM series.

The second innovation is the EPCOS BR7000-I with an RS485 interface, which can be used for embedding into networks, for controller coupling and for visualization via PC.

The BR7000-T offers various control modes, for example, switching of 15 steps with three-phase capacitors, switching of 15 single-phase steps in L-N or L-L operation, or mixed operation. The switch on and off times of capacitor steps can be selected between 50 and 1000 milliseconds. The BR7000-T has an illuminated graphic display; the BR7000-T/HD has an OLED display to ensure better visibility in poor lighted surroundings.

The BR7000-I/S485 is delivered with Windows-based BR7000-SOFT software and allows the evaluation and further processing of measured grid data via PC. The additional external input of the BR7000-I/S485 can be individually programmed, for example, for a second set of parameters. Also, the controller features a freely programmable message-relay, for instance, to trigger a fan or for status messages. An internal clock marks all recorded values and messages with a time stamp, allowing a better evaluation of all values.

The operating voltage covers 110 V AC to 230 V AC with a very low consumption of < 3 VA when all outputs are activated.

Main Applications:
-Power factor correction in single- and three-phase industrial power networks.

Main features and benefits:
-Fast switching of PFC capacitors
-Embedding into PC networks and visualization, storage and processing of power network parameters