Description
I. Basic Information
Part Number: IS200JPDGH1AManufacturer: General ElectricProduct Type: High Density DC Power Distribution BoardApplicable System: GE Speedtronic Mark VIe Turbine Control System
Function: It receives two redundant 24/28VDC DC power inputs, distributes isolated control power and wetting power to CPU, I/O modules and communication boards in the control cabinet. It is equipped with AC power signal sampling and multi-level overcurrent, overvoltage and short-circuit protection circuits. Cooperated with PPDA feedback module, it realizes real-time monitoring, fault alarm and status diagnosis of all power supply loops. The board is certified for Class I Div2 hazardous locations, widely used in gas turbine, steam turbine and generator set control systems in power plants and petrochemical industries.
II. Hardware Structure
- Dual redundant DC power input circuit with maximum total input current of 40A, realizing seamless power switching to ensure uninterrupted power supply of the control system.
- Multi-channel isolated distribution output unit, each loop is equipped with independent fuse and varistor surge suppression components to realize fault isolation of single branch load.
- High-precision voltage sampling and fault diagnosis circuit, which collects bus voltage, fuse status and external AC distribution signals, and uploads fault information to the upper control system for early warning and location.
- 2 groups of 96-pin high-density connectors and 2 groups of 6-pin anti-vibration aviation plugs, supporting daisy-chain cascading of multiple boards for power capacity expansion.
- On-board LED status indicators to visually display power supply operation, fuse fault and abnormal AC input status for rapid on-site troubleshooting.
III. Technical Specifications
Electrical Specifications
Environmental Specifications
Operating Temperature: 0℃ ~ +60℃Storage Temperature: -40℃ ~ +85℃Humidity: 5%~95%RH, non-condensingCertification: Class I Div2 / Zone 2 Hazardous Area Certification, GEH-6725R Industrial StandardVibration Resistance: Heavy-duty industrial anti-shock and anti-vibration gradeMechanical Specifications
Mounting: DIN Rail Vertical InstallationWeight: 0.91kgFixing Mode: Four-point screw locking with dedicated protective grounding terminalIV. Features
- Dual redundant power input design effectively avoids unplanned shutdown of turbine units caused by single power supply failure.
- Independent fuse protection for each output channel limits fault impact to a single branch, improving system maintainability and operational safety.
- Full-range power operation diagnosis realizes advance fault warning, reducing the risk of unit protection tripping caused by hidden power faults.
- Industrial wide-temperature and anti-electromagnetic interference design adapts to harsh working conditions such as high temperature, dust and long-term vibration in power plant control rooms.
- Complete compatibility with Mark VIe series hardware, supporting multi-board cascading expansion, spare parts can be directly replaced without modifying system configuration and control programs.
V. Application Scenarios
- Centralized power distribution for Mark VIe turbine control cabinets in thermal power and gas power plants.
- Power supply matching for ETS protection, TSI monitoring and excitation control systems of generator sets.
- Power distribution application in explosion-proof local control cabinets of gas-driven compressor units in petrochemical industry.
- Spare parts replacement for power board damage during annual overhaul of old GE turbine control systems.
- Supporting construction of redundant power distribution system during control cabinet capacity expansion and technical renovation projects.
