Mark V Voltage Attenuator Card GE DS200PCCAG9ACB

Product Overview

The GE DS200SVAAG1A (DS200SVAAG1A) functions as a high-precision Voltage Attenuator Card within the Speedtronic Mark V control system. This module plays a specialized role in signal conditioning by scaling down high-voltage inputs to levels compatible with the system's low-voltage analog-to-digital converters. It typically interfaces with generator or bus potential transformers to monitor system voltage levels. We provide this component as a 100% Brand New and Original unit, ensuring the exact resistance ratios and thermal stability required to maintain accurate voltage sensing and prevent control loop drift in utility-scale power plants.

Technical Specifications

Engineering Advantages

• Precision Resistor Networking: The board utilizes a matched network of high-stability resistors. This hardware-level scaling ensures that the attenuation ratio remains constant regardless of ambient temperature fluctuations, providing the control processor with a highly linear representation of field voltages.

• Enhanced Circuit Isolation: The SVAAG1A provides a buffer between high-energy field inputs and sensitive microprocessor electronics. This architecture prevents voltage transients and surges from propagating into the control core, significantly increasing the overall system's mean time between failures (MTBF).

• Low-Inductance Design: GE engineers optimized the PCB layout to minimize parasitic inductance. This design choice is critical for accurately scaling high-frequency voltage components and ensuring that the phase relationship of the AC signals remains intact for synchronization tasks.

• Seamless Backplane Integration: The card features a standard Mark V form factor with precision-aligned connectors. This allows for rapid "plug-and-play" replacement, reducing the time required for system maintenance or hardware refreshes.

FAQs

• Does the DS200SVAAG1A require manual calibration?

  The board utilizes fixed-ratio precision components; however, the Mark V software scaling constants must align with the card's specific attenuation factor. Always verify the I/O configuration in the Control Sequence Program (CSP) after hardware replacement.

• What is the difference between DS200SVAAG1A and the G1ACB version?

  The G1A is the base functional revision. The G1ACB is a later revision that may include updated component manufacturers or minor PCB trace optimizations. The G1A remains a direct-fit component for systems originally specified for this model.

• Are there specific safety protocols for handling this card?

  Yes. Because this card interfaces with high-voltage inputs, technicians must ensure all potential transformers are isolated and the system is de-energized before removal. Additionally, standard ESD (Electrostatic Discharge) procedures are mandatory to protect the onboard surface-mount components.

• Can I use this card in a TMR (Triple Modular Redundant) configuration?

  Yes. The SVAAG1A is commonly used in TMR systems where scaled voltage signals are distributed to the R, S, and T processors for redundant monitoring and voting.