Basler Electric CBS 212A - Manual (Page 7)

9270700990 Rev F 1
Introduction
The CBS 212A Current Boost System assists Basler SSR-series voltage regulators during generator
overload conditions and supplies the exciter field during generator short-circuits. When used with 3-wire
or 4-wire generators, the CBS 212A supports sustained single-phase and multiple-phase, line-to-line
faults. In addition, the CBS 212A permits 4-wire generators to support A-phase and B-phase line-to-
neutral faults.
The CBS 212A assembly consists of a Current Boost Module and two current transformers (CTs). The
Current Boost Module is designed for behind-the-panel mounting.
An Operating Point Adjustment control and Operating Point Indication LED are located on the front panel
of the Current Boost Module. An Output Limit Adjustment control is located on the bottom panel of the
Current Boost Module.
Special power CTs connect to two phases of the generator output and provide current to the Current
Boost Module. The Installation chapter provides details about CT selection.
CBS 212A Introduction