A Power Board, Not a Control-Rack I/O Card
The DS200PCCA is the Power Connect Card (PCCA) used in GE Mark V-line power converters — the link between the SCR thyristor bridge and the drive's firing/control electronics. Unlike the TCQA, TCQC, or TCEA boards, which live in the R/S/T/P logic cores of the control panel, the PCCA sits inside the power assembly of the DC drive tied to the turbine train (typically the generator's static exciter or a starting drive). If you're searching for this board in the control rack and can't find it, the power converter is likely housed in a cabinet separate from the Mark V panel itself.
What the PCCA Does
The PCCA receives firing commands from the control system and converts them into gate pulses for the SCR bridge, typically through pulse transformers. On low- and medium-power drives, the PCCA itself carries the snubber circuits that damp voltage spikes across the gate drivers, the DC bus, and the AC lines; on high-power drives, some or all of that damping may live elsewhere in the system, off the board. The DS200PCCAG10A is the G10 group variant of this family — specialized suppliers describe the G8 and G10 groups as non-regenerative variants using leg fuses instead of line fuses; that's a third-party characterization, not a spec we've confirmed against a GE manual, so treat it as a starting point for field investigation, not as settled fact ahead of a critical swap.
Diagnose Before You Buy
A "suspect" PCCA isn't always a failed PCCA. Before requesting a replacement:
- Check the fuses on the converter itself and on the power supply feeding the PCCA — a sag in supply voltage shows up as a firing failure, exactly like a burned-out PCCA.
- Verify jumpers JP1/JP2 (armature voltage range) and WP3/WP4 (snubber configuration and voltage-feedback channel). A brand-new board with jumpers set wrong for the application will fail just like the old one did.
- Inspect the SCR bridge itself and the cabling between the PCCA and the bridge — a shorted thyristor or a broken firing cable produces symptoms indistinguishable from a bad PCCA at first glance.
- Confirm the problem isn't in the command signal coming from the control panel before assuming the power converter is at fault.
How to Read DS200PCCAG10A / DS200PCCAG10ACB
DS200PCCAG10A is the base number: DS200 identifies the Mark V family, PCCA the function (Power Connect Card), G10 the style group within the family. DS200PCCAG10ACB is the full revision stamped on the board's physical label. When requesting a quote, always provide the complete reference including the revision suffix — searching by the base number alone can sometimes hide available stock.
Related Boards
The PCCA family spans multiple groups (G1 through at least G10) that are not freely interchangeable with one another — each group corresponds to a specific combination of voltage range, snubber presence, and fuse type. Don't assume cross-group compatibility without validating against the old board's label and, ideally, against the instruction manual for the specific converter on your unit.
What to Send With Your Quote Request
- Full part number with revision suffix, read directly from the board label (a photo helps our team confirm the exact group)
- Turbine model and the converter/drive where the board is installed
- Panel configuration: Mark V Simplex or TMR
- Quantity needed and whether it's for stock or an unplanned outage
- Urgency level
Send the details above through the Request a Quote form and our team will respond within 24 hours. Worldwide dispatch under DDP terms, with purchase orders accepted.
General Information about the Product |
Part Number |
DS200PCCAG10A Mark V DS200 |
Description |
DS200PCCAG10A By General Electric DS200PCCAG10ACB Power Connection Card NSFP |
Condition |
newSurplusFactoryPackage With 1 Year Warranty. |
