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The GE DS200SHVIG1BGD is a highly specific and late-revision model of the SCR High Voltage Interface Board (SHVI) used in the GE Mark V Speedtronic Turbine Control System and the DC2000/EX2000 Drive Series.
It is an isolated measurement and signal conditioning board that acts as the crucial link between the high-power section (the SCR bridge) of an industrial drive and the sensitive, low-voltage control electronics.1
Key Functions
The SHVIG1BGD is a non-processing board that is vital for drive protection, control, and accurate metering:
| Function | Description |
| Isolation & Attenuation | It steps down and provides galvanic isolation for the dangerously high AC line voltage and DC bridge voltage. This protects the low-voltage control cards (like the SDCI/DCFB) from power surges and electrical noise. |
| Current Conversion | It receives the highly sensitive $\text{mV}$ signals ($\pm 500 \text{ mV}$) from the current shunts and converts them into a noise-resistant differential frequency output ($0 \text{ to } 500 \text{ kHz}$). Frequency signals transmit reliably across the noisy drive cabinet. |
| Configurability | The board includes a set of configurable jumpers (typically 17) that integrate with $10:1$ Current Transformers ($\text{CTs}$). This allows technicians to select the proper current attenuation and scaling to accurately match the board to the drive’s specific power components. |
| Interfacing | It routes conditioned voltage and current feedback signals to the Power Supply/Instrumentation Card (SDCI/DCFB) and the Power Connect Card (PCCA). |
| Diagnostics | It includes LED indicator lights to provide immediate, local visual alerts if any of the associated line filter fuses have blown. |
Part Number Breakdown (DS200SHVIG1BGD)
The long part number indicates its series, function, and specific revision history:
| Segment | Code | Meaning |
| DS200 | DS200 | GE’s Mark V DS200 Series (Circuit board assembly). |
| SHVI | SHVI | SCR High Voltage Interface (Board). |
| G1 | G1 | Group 1: The primary functional grouping for this component type. |
| B | B | Functional Revision 1. |
| G | G | Functional Revision 2 (Indicates a minor functional or component update). |
| D | D | Artwork Revision (Indicates the version of the physical PCB layout). |
The DS200SHVIG1BGD is a robust and essential safety and measurement component for the reliable operation and protective shutdown functions of the GE drive system.2
