GE IS200EPBPG1AAC Power Backplane Board

الوصف

The GE IS200EPBPG1AAC Power Backplane Board (EPBP) is a critical infrastructure component in the EX2100 Excitation Control System, which is part of the larger GE Mark VI Speedtronic platform used to control large generator excitation systems.¹

⚡ Core Function: Power Distribution

The primary function of the IS200EPBPG1AAC is to serve as the central power bus for the control electronics within the exciter cabinet.

• Logic Power Distribution: It manages and distributes the required logic-level DC voltages (such as ²$\text{+5 V DC}$, ³$\text{+15 V DC}$, and ⁴$\text{+24 V DC}$) to the three primary controller units (M1, M2, and C) in redundant (TMR) EX2100 systems.⁵
• Power Supply Housing: The backplane provides slots and connectors for the Exciter Power Supply Modules (EPSM)—typically three of them, one for each controller section (M1, M2, C).⁶ These EPSM modules convert an external ⁷$\text{125 V DC}$ supply into the needed logic-level voltages.⁸
• Ground Detection: The board also incorporates connectors for the Exciter Ground Detector Modules (EGDM), which monitor for ground faults in the exciter’s power circuitry.⁹
• Physical Backbone: It acts as the physical mounting structure for the EPSM and EGDM modules and connects them to the main Exciter Control Backplane (EBKP).

📋 Key Specifications

In short, the IS200EPBPG1AAC is essential because it guarantees that the entire control system—particularly the redundant digital signal processors and I/O boards—receives clean, isolated, and reliable power necessary for continuous, stable generator operation.