GE DS200TCPDG2B Power Distribution Board

الوصف

The GE DS200TCPDG2B is a Power Distribution Board (Functional Acronym: TCPD) designed for the General Electric Speedtronic Mark V Turbine Control System.¹

It performs the critical task of distributing and managing power throughout the various modules and cores of the Mark V panel, ensuring reliable operation and providing essential circuit protection.² The “G2” in the part number indicates it is the second-generation design of the power distribution module for the Mark V series.

⚙️ Key Function and Specifications

This board is typically mounted in the ³$<\text{PD}>$ (Power Distribution) core of the Mark V control panel.⁴

Primary Functions

• Power Distribution: Its main role is to distribute ⁵$125 \text{ VDC}$ power to essential components, including:⁶
  • The Control Engine core.⁷
  • The TCPS (Power Supply) boards in each I/O core.
  • The TCEA (Emergency Overspeed) boards in the protective ⁸$<\text{P}1>$ core.⁹
• AC/DC Handling: It accepts both ¹⁰$125 \text{ VDC}$ power and external ¹¹$115/230 \text{ VAC}$ power (which may be converted to ¹²$125 \text{ VDC}$ via a DACA converter connected through the JZ2 connector).¹³
• Circuit Protection: It features numerous fuses and corresponding LED status indicators to protect the individual circuits and allow for quick visual troubleshooting.¹⁴
• Core Isolation: It includes several toggle switches that enable maintenance personnel to switch the power on and off for specific cores (like ¹⁵$R1, R2, R3, R5$) for safe isolation.¹⁶

Hardware Features

The DS200TCPDG2B is designed for a high-reliability industrial environment:¹⁷

The “G2” series often signifies enhanced features or design improvements over the G1 series of boards within the same system.