+86 18030182217
+86 18030182217
sandydcsplc@gmail.com
Description
GE DS3800DEPB1A1B Speedtronic Mark IV LCI Excitation Control Board
Product Overview
The GE DS3800DEPB1A1B is a Load Commutated Inverter (LCI) excitation control board designed for GE’s Speedtronic Mark IV gas turbine control system. Serving as a critical component in the Mark IV platform, this board manages the excitation of the LCI, ensuring stable and efficient power conversion in industrial power generation, oil & gas, and marine propulsion applications. Unlike primary regulator boards (e.g., DS3800DGRC1C1D), the DS3800DEPB1A1B focuses on auxiliary excitation control, acting as a bridge between turbine control logic and the LCI to maintain precise voltage and current regulation during dynamic load conditions . Its modular design and rugged construction make it suitable for harsh environments, while built-in diagnostic features enhance system reliability and reduce downtime.
Featuring a green conformal coating and 2 trimmer resistors for manual adjustments , the DS3800DEPB1A1B includes 1 20-pin ribbon cable and 5 10-pin connectors for signal transmission, along with 4 terminals for additional component integration . Its compact form factor (approximately 13.0 x 6.7 x 1.0 inches, 0.068 kg) allows seamless integration into existing Mark IV racks, with retention latches ensuring secure signal transmission . The board supports analog I/O signal processing, enabling real-time data exchange with higher-level control systems .
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | GE DS3800DEPB1A1B |
| Manufacturer | General Electric (GE) |
| Product Type | LCI Excitation Control Board (Gas Turbine Control) |
| Input Power | 24V DC ±10% (inferred from Mark IV system standards) |
| Weight | 0.068 kg (0.15 lbs) |
| Physical Dimensions | ~13.0 x 6.7 x 1.0 inches (33.0 x 17.0 x 2.5 cm) (inferred from Mark IV standards) |
| Connector Type | 1 x 20-pin ribbon cable, 5 x 10-pin connectors, 4 terminals |
| Adjustment Features | 2 trimmer resistors, jumpers |
| Operating Temperature | -20°C to +60°C (inferred from similar Mark IV components) |
| Compliance | UL 508, CE, ISO 9001 (inferred from Mark IV system standards) |
Key Features and Advantages
Precision Excitation Control: The DS3800DEPB1A1B processes analog signals from turbine sensors to regulate the LCI’s excitation current, ensuring stable power output during startup, load changes, and grid synchronization . Its trimmer resistors allow field technicians to fine-tune resistance values for optimal performance .
Rugged Durability: Built with a corrosion-resistant aluminum alloy casing and conformal coating, the DS3800DEPB1A1B withstands dust, moisture, and extreme temperatures, making it ideal for offshore platforms and high-vibration industrial environments .
Diagnostic and Fault Recovery: The board includes built-in over-temperature and overcurrent protection mechanisms, automatically triggering a shutdown if critical thresholds are exceeded to prevent damage .
Legacy Compatibility: Designed for the Mark IV system, the DS3800DEPB1A1B ensures backward compatibility with older GE Speedtronic infrastructure, offering a cost-effective upgrade path .
Analog Signal Management: As a dual-purpose analog I/O board, it interfaces with sensors and actuators, supporting closed-loop control for precise monitoring of process variables like temperature and pressure .
Applications
The GE DS3800DEPB1A1B is widely used in gas turbine control systems across industries requiring LCI excitation management:
- Power Generation: Regulating excitation current during grid synchronization and load shedding in industrial gas turbines.
- Oil & Gas: Providing auxiliary control for turbine-driven compressors and pumps in refineries and offshore platforms.
- Marine Propulsion: Supporting propulsion systems by managing LCI excitation for variable-speed marine turbines.
- Industrial Manufacturing: Ensuring consistent power supply for turbine-driven processes in chemical plants and steel mills.
Related Products
- GE DS3800DECA1B1B1 LCI Exciter Control Board: Primary excitation module often paired with the DS3800DEPB1A1B for comprehensive LCI integration .
- GE DS3800DISA Signal Isolated Auxiliary Card: Enhances noise immunity for the DS3800DEPB1A1B in electromagnetic-rich environments .
- GE Mark IV Power Supply Module: Ensures stable 24V DC power delivery to the DS3800DEPB1A1B and other Mark IV components.
- GE DS3800NFCF Firing Circuit Board: Supports ignition timing control, complementing the DS3800DEPB1A1B’s excitation functions .
Installation and Maintenance
Installation Preparation:
- Verify compatibility with the Mark IV rack and ensure proper grounding.
- Align the 20-pin ribbon cable and 10-pin connectors with mating ports on the LCI motherboard (e.g., DS3800DECA1B1B1) and secure them using retention latches .
- Route signal cables away from power lines to minimize electromagnetic interference.
Maintenance Recommendations:
- Inspect trimmer resistor settings annually using a calibrated multimeter to ensure accuracy.
- Clean dust and debris from the board’s surface using a static-free cloth.
- Perform firmware updates via GE’s proprietary software to access bug fixes and new features.
- In high-vibration environments, check connector tightness quarterly.
Product Assurance
GE guarantees the DS3800DEPB1A1B with a 1-year warranty covering defects in materials and workmanship. Third-party suppliers like AX Control and World of Controls offer refurbished units with extended warranties (e.g., 3-year repair warranties) . GE’s global support network provides 24/7 technical assistance, while authorized distributors like World of Controls offer same-day shipping for urgent replacements .
Contact info
- WhatsApp: +86 18030182217
- Email: sandydcsplc@gmail.com
- Phone: +86 18030182217
- Wechat: +86 18030182217
- Website: www.xiongbaparts.com
