
Product Overview
DS200TCPDG2BEC serves as a power-distribution component within GE Mark V turbine control architecture, where dependable distribution of control-system power is essential for turbine operation and maintenance. The TCPD function establishes the 125 V dc distribution path between the panel power source and major Mark V control sections, while dedicated switching allows individual core power to be removed during maintenance or system-level power management. The architecture also accommodates associated terminal-board and ignition-transformer power requirements, making the TCPD function important in gas-turbine and steam-turbine control installations.
Technical Specifications For DS200TCPDG2BEC
| Brand | GE |
| Model | DS200TCPDG2BEC |
| Product Type |
Power Distribution Board |
| Functional Acronym | TCPD |
| System Platform |
GE Mark V turbine control system |
| Primary Function |
125 V dc power distribution |
| Power Distribution Bus |
125 V dc |
| Core Distribution |
TCPS boards in I/O cores, Control Engine core, and TCEA boards in the P1 core |
| Digital I/O Power Path |
Digital I/O cores receive power through associated I/O cores |
| Terminal Board Power |
DTBC and DTBD terminal boards receive power directly from the TCPD distribution system |
| Ignition Transformer Supply | 120/240 V ac |
| Core Isolation |
Individual core power-down through dedicated switches |
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KEY FEATURE
Centralized DC Power Distribution
DS200TCPDG2BEC belongs to the TCPD power distribution function within the Mark V architecture, distributing 125 V dc power to major control-system sections including TCPS boards, the Control Engine core, and TCEA boards in the P1 core.
Individual Core Power Isolation
Dedicated switching provides individual power-down capability for Mark V control cores, allowing power distribution to be managed by core rather than requiring a common shutdown of the entire control system.
Integrated Turbine Control Power Path
The TCPD power-distribution function also supports power delivery to DTBC and DTBD terminal boards and provides 120/240 V ac power for ignition-transformer circuits. CTBA receives power from the TCPD path for monitoring of power output.
FAQ FOR DS200TCPDG2BEC
What function does DS200TCPDG2BEC provide in a Mark V control system?
DS200TCPDG2BEC performs the TCPD power-distribution function, routing 125 V dc power to designated Mark V control-system sections, including TCPS boards, the Control Engine core, and TCEA boards in the P1 core.
Why does DS200TCPDG2BEC use a 125 V dc distribution bus?
A common 125 V dc bus provides the primary power-distribution path for Mark V panel cores. GE specifies 125 V dc with a 100 to 144 V dc operating range for the panel power source.
How does DS200TCPDG2BEC support individual core maintenance?
Dedicated TCPD switching allows individual Mark V cores to be powered down separately, providing a practical method for isolating selected control sections during maintenance activities.
Can DS200TCPDG2BEC supply power to digital I/O cores directly?
Digital I/O cores do not receive the primary power-distribution feed directly from the PD section. Digital I/O cores obtain power through the associated I/O core power path.

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