The DS3800NVRC is a relay output board for the GE Mark IV turbine control system. It provides high-current, isolated contact outputs for driving field devices such as solenoid valves, motor starters, alarm annunciators, and trip relays. This board translates low-level digital commands from the main processor or I/O boards (like the DS3800NVIA1G1C or DS3800NVIA1G1D) into robust switching actions for critical turbine control and protection functions.
The DS3800NVPA1E1B is a specific variant of the GE Mark IV analog input processor board, part of the DS3800NVPA series. It is designed for high-accuracy acquisition of analog signals from thermocouples, RTDs, pressure transmitters, and other field sensors. This variant includes enhanced input filtering and a specific factory calibration for improved performance in high-vibration or electrically noisy environments. It works alongside other Mark IV boards like the DS3800NVIA1G1C, DS3800NVIA1G1D, and DS3800NVOC to provide complete I/O coverage for gas and steam turbine control systems.
The DS3800NVPA is a high-density analog input processor board for the GE Mark IV turbine control system. It acquires and conditions analog signals from field transmitters, thermocouples, RTDs, and pressure sensors, converting them into digital values for the main turbine controller. It typically works alongside other Mark IV boards like the DS3800NVIA1G1C, DS3800NVIA1G1D, and DS3800NVOC to provide complete I/O coverage for gas and steam turbine applications.
The DS3800NVOC is a specialized output combiner/amplifier board for the GE Mark IV turbine control system. It takes low-level analog command signals from the main processor or I/O boards (such as the DS3800NVIA1G1C or DS3800NVIA1G1D) and converts them into high-current, high-voltage drive signals for electro-hydraulic (EHC) servo valves and hydraulic actuators. This board is essential for final control element positioning in gas and steam turbine fuel, steam, and inlet guide vane loops.
The DS3800NVMB is a VMEbus memory expansion board for the GE Mark IV turbine control system. It provides additional non-volatile RAM and EPROM storage for turbine control logic, setpoints, and historical fault data logging. It works alongside I/O processor boards like the DS3800NVIA1G1C and DS3800NVIA1G1D to support complex turbine sequencing and trip-logging functions.
The DS3800NVIA1G1D is a variant of the GE Mark IV I/O processor board, very similar to the DS3800NVIA1G1C but with a different firmware revision and minor component changes. It serves as the signal conditioning and communication interface between field I/O and the main turbine controller in SPEEDTRONIC™ heavy-duty gas and steam turbine systems.
The DS3800NVIA1G1C is a high-performance I/O processor board manufactured by General Electric (GE) for the Mark IV turbine control system. This board serves as a critical interface between field I/O signals and the main turbine control processor, handling analog and digital signal conditioning, data acquisition, and communication protocols within the SPEEDTRONIC™ heavy-duty gas turbine control platform. The DS3800NVIA1G1C is designed for extreme reliability in power generation environments, featuring redundant communication paths and comprehensive fault detection logic that ensures uninterrupted turbine operation even under adverse electrical conditions.
The DS3800NVIA1C1D is a power supply/converter board from GE’s Speedtronic Mark IV/V turbine control series. This model belongs to the “NVIA” family—a variable voltage industrial analog power interface designed for flexible analog power distribution with adjustable output voltage and integrated industrial analog features. The “1C1D” suffix indicates a further enhanced revision within the NVIA family, offering increased output capacity, enhanced diagnostics, improved monitoring, advanced communication, and updated component selections compared to the 1B1B revision. The DS3800NVIA1C1D provides regulated DC outputs with adjustable ±15V rails for analog circuits, making it suitable for applications requiring precise analog power supply calibration in industrial environments. This board is typically installed in instrumentation cabinets, analog signal conditioning racks, or industrial control equipment where adjustable analog power is required.
The DS3800NVIA1B1B is a power supply/converter board from GE’s Speedtronic Mark IV/V turbine control series. This model belongs to the “NVIA” family—a variable voltage industrial analog power interface designed for flexible analog power distribution with adjustable output voltage and integrated industrial analog features. The “1B1B” suffix indicates a higher‑performance revision within the NVIA family, offering increased output capacity, enhanced diagnostics, and improved monitoring compared to the baseline NVIA. The DS3800NVIA1B1B provides regulated DC outputs with adjustable ±15V rails for analog circuits, making it suitable for applications requiring precise analog power supply calibration in industrial environments. This board is typically installed in instrumentation cabinets, analog signal conditioning racks, or industrial control equipment where adjustable analog power is required.
The DS3800NVIA is a power supply/converter board from GE’s Speedtronic Mark IV/V turbine control series. This model belongs to the “NVIA” family—a variable voltage industrial analog power interface designed for flexible analog power distribution with adjustable output voltage and integrated industrial analog features. The “NVIA” suffix indicates a specialized board that combines power conversion, adjustable analog output voltage, system monitoring, and diagnostic features for industrial analog applications. The DS3800NVIA provides regulated DC outputs with adjustable ±15V rails for analog circuits, making it suitable for applications requiring precise analog power supply calibration in industrial environments. This board is typically installed in instrumentation cabinets, analog signal conditioning racks, or industrial control equipment where adjustable analog power is required.
The DS3800NVCD1D1C is a power supply/converter board from GE’s Speedtronic Mark IV/V turbine control series. This model belongs to the “NVCD” family—a variable voltage converter board with diagnostics designed for flexible voltage conversion with adjustable output voltage and integrated diagnostic features. The “1D1C” suffix indicates a further enhanced revision within the NVCD family, offering increased output capacity, enhanced diagnostics, improved monitoring, advanced communication, and updated component selections compared to the 1C1C revision. The DS3800NVCD1D1C provides regulated DC outputs with adjustable main output voltage, making it suitable for applications requiring flexible voltage conversion and diagnostics. This board is typically installed in auxiliary control cabinets, test equipment, or field device power distribution racks where adjustable voltage conversion and diagnostics are required.
The DS3800NVCD1C1C is a power supply/converter board from GE’s Speedtronic Mark IV/V turbine control series. This model belongs to the “NVCD” family—a variable voltage converter board with diagnostics designed for flexible voltage conversion with adjustable output voltage and integrated diagnostic features. The “1C1C” suffix indicates a further enhanced revision within the NVCD family, offering increased output capacity, enhanced diagnostics, improved monitoring, advanced communication, and updated component selections for improved long‑term availability. The DS3800NVCD1C1C provides regulated DC outputs with adjustable main output voltage, making it suitable for applications requiring flexible voltage conversion and diagnostics. This board is typically installed in auxiliary control cabinets, test equipment, or field device power distribution racks where adjustable voltage conversion and diagnostics are required. This revision is a direct drop‑in replacement for the 1B1B, offering identical form, fit, and function with updated component selections.