Finding the DS200PCCAG8A in the Right Place
If you've combed through the Mark V control rack (the R/S/T/P cores, where TCQA, TCQC, and TCEA live) looking for this board and couldn't find it, that's expected: the PCCA family doesn't live there. The DS200PCCAG8A operates inside the power converter — typically the generator's static exciter or a DC drive on the train — bridging between the firing command from the control electronics and the thyristor (SCR) bridge.
What the G8 Group Usually Indicates
Specialized suppliers classify the G8 group (like the G10) as a non-regenerative version of the PCCA, with line fuses instead of leg fuses. We haven't independently confirmed this detail against a GE manual — we treat it as specialized-supplier reference. That doesn't change the practical recommendation: always compare the physical label of the board being removed against the replacement before assuming compatibility between different groups in the family.
Diagnose Before Replacing
- Check the converter's fuses — if the G8 group really does use line fuses, a blown line fuse reproduces exactly the symptom of a PCCA with no firing output.
- Verify the thyristors and the firing cabling of the SCR bridge before blaming the board.
- Compare the position of jumpers JP1, JP2, WP3, and WP4 with the old board.
- Confirm the command supply reaching the board is stable — instability here mimics an interface failure.
Electrical Function
The PCCA converts the firing command into gate pulses for the SCR bridge, typically via pulse transformers, and on low-/medium-power converters it also hosts the snubber circuits that limit voltage spikes on the DC bus and the AC lines.
Reading the Part Number
DS200PCCAG8A is the base (DS200 = Mark V family, PCCA = function, G8 = group); DS200PCCAG8ACB is the full revision stamped on the label. Always provide the complete code when requesting a quote.
This Unit
Used, cleaned and tested, with a 1-year warranty.
What to Send With Your Quote
- Full part number with suffix (photo of the label)
- Turbine and converter where the board operates
- Mark V Simplex or TMR
- Quantity and urgency
Request a quote through Request a Quote: response within 24 hours, worldwide DDP dispatch, purchase orders accepted.
General Information about the Product |
Part Number |
DS200PCCAG8A Mark V DS200 |
Description |
GE General Electric DS200PCCAG8A DS200PCCAG8ACB DC Power Inductor Connect Board |
Condition |
used Clean and Tested. With 1 Year Warranty |
