GE DS200SHCAG1B Shunt Connector Card

الوصف

The GE DS200SHCAG1B is a specific revision of the Shunt Connector Board (SHCA) used in the GE Mark V Speedtronic Turbine Control System and DS200 Drive Series.¹

Its sole function is to act as a passive, terminal interface for routing low-voltage, highly accurate current feedback signals from the drive’s current shunts to the main control and instrumentation electronics.

Function and Role

The DS200SHCAG1B is not a control processor or power supply; it is a dedicated connection board designed to preserve the integrity of critical analog current signals.

1. Shunt Signal Routing

In a high-power DC drive system, current shunts are used to measure large currents (Armature or Field) by producing a very small, proportional voltage drop (typically ²$\pm 50 \text{ mV}$ to ³$\pm 100 \text{ mV}$).⁴ The DS200SHCAG1B:

• Provides robust terminal points for the wiring that carries this low-level, sensitive shunt voltage.
• Securely connects these signals to the relevant Instrumentation Board (like the SDCI), which then isolates, amplifies, and converts the analog signal for the digital controller.

2. High-Integrity Interface

Because the shunt signals are so small, they are highly susceptible to electrical noise and interference present in the drive cabinet. The design of the SHCA board ensures a clean, organized, and reliable pathway for these signals, which is critical for accurate motor control and protection functions.

Part Number Breakdown (DS200SHCAG1B)

The revision codes indicate its place in the product history:

In short, the DS200SHCAG1B ensures that the main control system receives the accurate current measurements it needs for the safe and precise operation of the DC drive or turbine control system.