GE DS200PTCTG1ABB Mark V PTCT Potential/Current Transformer Signal Conditioning Board

General Electric DS200PTCTG1ABB is the PTCT board -- Potential Transformer / Current Transformer -- a signal-conditioning I/O board used in the Mark V and EX2000 excitation systems. It isolates and scales the voltage and current signals coming from the machine's PTs and CTs so the control processors receive calibrated, low-level values instead of raw switchgear-level signals. It also provides auxiliary inputs and outputs for low-voltage (10 V DC) or 4-20 mA current signals. The board carries six high-precision potential transformers with 1.6 Vrms secondaries against a 120 Vrms nominal primary, and three current transformers each with a burden resistor fitted across the secondary. Those burden resistors are part of the calibration, which is why a PTCT board is not something to substitute across revisions without checking. Order this one by the full part number including the trailing revision letters, and check them against the board's own nameplate. GE turbine boards carry suffixes that are not cosmetic -- a board with a different revision can differ in firmware, connector or scaling and is not always a drop-in. GE does not publish a public datasheet for this board, so the order desk verifies the exact revision and system compatibility before quoting rather than matching on the base number alone. These are legacy turbine-control systems supported from surplus, refurbished and repaired stock; tell us whether a repaired exchange unit is acceptable, because it often shortens the lead time considerably. Please email [email protected] to check stock for this item -- send the part number and the quantity you need and the order desk will come back with current availability, lead time and pricing, usually the same business day.