Description
The GE IS220PTURH1B is a Turbine Specific Primary I/O Pack (PTUR) within the Mark VIe control system. It is a specialized, high-performance module designed to handle critical turbine-specific functions, primarily speed sensing and synchronization, serving as the interface between turbine sensors and the redundant IONet.
Product Parameters (Datasheet)
- Model Number: IS220PTURH1B
- Series: Mark VIe Speedtronic
- Module Type: Turbine Specific Primary I/O Pack
- Speed Inputs: 12 magnetic pickup speed sensor inputs (passive or active)
- Synchronization: 2 redundant synchronizing generator/bus potential transformer (PT) inputs
- Communication: Dual 100 Mbps Ethernet ports (IONet)
- Sampling Rate: High-speed processing for overspeed protection logic
- Operating Temperature: -30°C to +65°C (-22°F to +149°F)
- Isolation: Galvanic and optical isolation for signal integrity
GE IS220PTURH1B
GE IS220PTURH1B
GE IS220PTURH1B
Country of Origin
This turbine-specific module is designed and manufactured by General Electric (GE) in the USA, specifically engineered for heavy-duty gas and steam turbine protection.
Application Fields
The IS220PTURH1B is essential for the safe operation of power generation assets:
- Gas & Steam Turbines: Providing primary electronic overspeed protection.
- Generator Synchronization: Monitoring phase, frequency, and voltage to safely close the circuit breaker.
- Shaft Speed Monitoring: Measuring zero-speed, creep, and rated speed for control logic.
- Power Plant Protection: Acting as the primary high-speed trip interface for mechanical safety parameters.
Product Usage Instructions
- Mounting: The PTUR pack plugs directly into the D-type connectors of a compatible terminal board, typically the TTUR (Turbine Terminal Board).
- Speed Sensor Wiring: Connect Magnetic Pickup (MPU) sensors to the terminal board. Ensure shielded cabling is used to prevent electromagnetic interference from affecting speed pulse accuracy.
- Synchronization Connections: Land the PT (Potential Transformer) wires from both the Generator and the Utility Bus onto the terminal board for synchronization monitoring.
- Networking: Utilize both RJ45 ports to connect to the redundant IONet switches, ensuring the controller has a dual path for safety-critical data.
- Configuration: Use ToolboxST to define speed pulse counts per revolution, overspeed trip setpoints, and synchronization slip-window parameters.
Product Technical Description
The IS220PTURH1B is a “smart” I/O pack that offloads high-speed processing from the main controller. It is specifically designed to handle Magnetic Pickup (MPU) signals, which can reach high frequencies at rated speeds. Technically, the module contains its own local processor that calculates speed and monitors for “Acceleration Trip” and “Overspeed Trip” conditions independently of the main controller for maximum safety. It also includes the circuitry for Auto-Synchronization, comparing the generator’s sine wave to the bus sine wave to ensure a “bumpless” connection to the grid. The “H1B” version includes conformal coating and high-temperature rated components to ensure longevity in the harsh environment of a turbine enclosure.
Q&A (Common Questions)
- Q: Is the PTUR pack used for Emergency Overspeed?
- A: The PTUR is typically for Primary overspeed. The PPRO (Protection) pack and TREH/TRPG terminal boards are usually used for the independent Emergency Overspeed trip.
- Q: Can one PTUR pack handle multiple turbines?
- A: No. One PTUR (or a TMR set of three) is dedicated to a single turbine unit to ensure independent safety and control.
- Q: What does a “Pulse Error” diagnostic mean?
- A: This usually indicates that the MPU signal is inconsistent, possibly due to a loose sensor, incorrect gap setting, or electrical noise on the signal cable.
- Q: Does it support both passive and active speed sensors?
- A: Yes, it can be configured via hardware jumpers on the terminal board or software settings in ToolboxST to accept different sensor types.
Similar Model Recommendations
- GE IS220PPROH1B: Turbine Protection I/O Pack (Emergency Trip).
- GE IS200TTURH1B: Compatible Primary Turbine Terminal Board.
- GE IS220PDIAH1B: Discrete Input I/O Pack for general alarms.
- GE IS200TRPGH1B: Primary Turbine Trip Terminal Board.
- GE IS220PAICH1B: Analog Input pack for monitoring temperatures/pressures.
For technical documentation or to request a quote for the GE IS220PTURH1B, please contact our turbine control technical team.
