Product Core Brief
- Part Number: DS200TCEBG1ACE
- Brand: GE (GE Energy / GE Digital / GE Industrial Systems)
- Series: GE Speedtronic Mark V / DS200
- Core Function: TCEB protective terminal expansion board that interfaces PT/CT, flame detection, magnetic pickup, and 335 VDC board signals within the Mark V protection architecture.
- Product Type: Mark V TCEB Protective Terminal Expansion Board
- Key Specs: 3 bayonet connectors (JWX/JWY/JWZ) | 4 signal transformers | 26-pin connector (JMP) | 4× 10-pin + 3× 20-pin connectors | interfaces with TCEA and PTBA boards | legacy/obsolete product
- Condition: New Original / New Surplus
Product Introduction
GE DS200TCEBG1ACE is a protective terminal expansion board for the GE Speedtronic Mark V control system family. It belongs to the TCEB board family and serves as a signal interface and expansion board within the turbine protection core.
The board is equipped with 3 bayonet connectors labeled JWX, JWY, and JWZ, 4 signal transformers, one 26-pin connector, 4× 10-pin connectors, and 3× 20-pin connectors. The bayonet connectors are designed for quick-lock cable connections and must be aligned and pressed into place before disconnecting.
Documented connector functions include:
- JKX/JKY/JKZ: Flame detection and magnetic pickup signal connectors for the TCEA board.
- JMP: PT and CT signal connector for the TCEB board.
- JU: Flame detection and magnetic pickup signal connector for the PTBA board.
- JV: PT and CT signal connector for the PTBA board.
- JVA: 335 VDC board signal connector for the PTBA/TCEB interface.
- JWX/JWY/JWZ: 335 VDC board signal connectors for TCEA, TCEB, and PTBA boards.
The TCEB board works closely with the PTBA protection core terminal board and the TCEA emergency overspeed board. PTBA terminates high/low shaft speed, flame detection, generator/bus voltage, and generator current signals, then routes them to TCEB and TCTG through connectors such as JU, JV, and JVA. TCEB processes these protection signals and participates in the trip logic chain within the Mark V protection core.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE (GE Energy / GE Digital / GE Industrial Systems) |
| Part Number | |
| Product Type | TCEB Protective Terminal Expansion Board |
| Series | GE Speedtronic Mark V / DS200 |
| Typical Application | Protection core signal expansion for PT/CT, flame detection, and 335 VDC circuits |
| Bayonet Connectors | JWX, JWY, JWZ |
| Signal Transformers | 4 |
| Key Connectors | JKX/JKY/JKZ, JMP, JU, JV, JVA, JWX/JWY/JWZ |
| Related Boards | TCEA, PTBA, TCTG, STCA |
| Status | Legacy / Obsolete |
Note: The TCEB protective terminal expansion function, bayonet connectors, signal transformers, and PTBA/TCEA interface signals are documented for the DS200TCEBG1 family. The exact connector layout, jumper map, LED indicators, and ACE-specific configuration should be verified from the physical board label and GE Mark V manuals.
Quality Control Process (DYNAMIC GENERATION)
- Visual and label inspection. We check the part number, suffix, PCB surface, bayonet connectors, pin connectors, signal transformers, and mounting hardware for damage or corrosion.
- TCEB function verification. We confirm the board matches the DS200TCEBG1ACE protective terminal expansion board description and is not mislabeled as a TCEA, PTBA, or TCQA board.
- Bayonet connector check. All 3 bayonet connectors (JWX/JWY/JWZ) are inspected for secure locking and proper pin alignment.
- Transformer and continuity check. The 4 signal transformers and all pin connectors (JMP, JU, JV, JVA, JKX/JKY/JKZ) are verified for correct pin continuity and no short circuits.
- Final packaging. After passing inspection, the board is anti-static bagged and foam-packed for shipment.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Confirm TCEB function before installation. DS200TCEBG1ACE is a protective terminal expansion board; do not substitute it with TCEA, PTBA, TCTG, TCQA, or other Mark V boards.
❗ Label all bayonet and pin connectors before removal. The TCEB board interfaces with TCEA, PTBA, and the protection core; miswiring can cause incorrect protection signals or turbine trips.
❗ Handle bayonet connectors correctly. Align and press bayonet connectors straight into place; never pull the cable instead of the connector body to avoid damaging cable pins.
❗ Record jumper settings before removal. Document all jumper positions and connector labels for troubleshooting reference after replacement.
❗ Verify PTBA/TCEA pairing. Confirm the board is correctly paired with the PTBA terminal board and TCEA overspeed board in the same protection core.
❗ Observe ESD safety. The board contains sensitive signal conditioning and protection circuitry; always use anti-static wrist straps and handling procedures.
❗ Handle as ESD-sensitive equipment. Always use anti-static wrist straps and handling procedures during removal, installation, and storage.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| GE | GE | Direct | Same part number; verify connector layout and core assignment. |
| GE | GE DS200TCEBG1 variants | Needs Adaptation | Same TCEB family; suffix differences may affect revision or configuration. |
| GE | GE DS200TCEBG1ACD | Needs Adaptation | Same TCEB family; verify connector and signal configuration before substitution. |
| GE | GE DS200TCEAG1 variants | Not Compatible | TCEA is an emergency overspeed board; different function and signal routing. |
| GE | GE DS200PTBAG1A | Not Compatible | PTBA is a protection core terminal board; not a direct replacement for TCEB. |
Benchmark highlights
- GE Speedtronic Mark V TCEB protective terminal expansion board.
- Interfaces PT/CT, flame detection, magnetic pickup, and 335 VDC board signals.
- Equipped with 3 bayonet connectors (JWX/JWY/JWZ), 4 signal transformers, and a 26-pin JMP connector.
- Works with TCEA and PTBA boards within the Mark V protection core.
- Connectors include JKX/JKY/JKZ (TCEA flame/magnetic pickup), JU/JV (PTBA signals), and JVA (335 VDC).
- Legacy product; best suited for existing Mark V protection system maintenance and like-for-like replacement.
