Description
1. Product Title
GE IS220PTURH1A – Mark VIe Turbine Specific Primary Trip I/O Pack
2. Product Overview
The IS220PTURH1A is a high-reliability I/O pack designed by General Electric for the Mark VIe control system. Specifically categorized as a Turbine Specific Primary Trip module, its primary function is to interface with the turbine’s emergency trip system. It manages the critical signals required to safely shut down a gas or steam turbine by controlling the primary trip solenoids and monitoring speed inputs.
In industrial power generation, the IS220PTURH1A solves the challenge of high-speed safety execution. It provides a dedicated hardware path for emergency overspeed protection and trip logic that is independent of the general process control. This module is essential for protecting multi-million dollar turbine assets from catastrophic mechanical failure, ensuring that fuel or steam is cut off instantly when a trip condition is detected.
3. Technical Specifications
- Brand: General Electric (GE)
- Model: IS220PTURH1A
- Warranty: One Year
- Condition: 100% New & Original
- Functions: Overspeed protection, Emergency Trip Solenoid (ETS) control, Trip monitoring.
- Input Channels: 3 magnetic pickup (MPU) speed sensor inputs.
- Output Channels: Primary trip relay control for solenoid valves.
- Communication: Dual 100 MB Ethernet (IONet).
- Processor: High-speed 32-bit RISC processor for local safety logic.
- Operating Temp: -30°C to +65°C (-22°F to +149°F).
- Redundancy: Designed for TMR (Triple Modular Redundancy) configurations.
4. Key Features & Benefits
- Overspeed Logic at the Edge: The IS220PTURH1A calculates turbine speed and executes trip logic locally on the pack, ensuring a response time that is not dependent on the main controller’s scan cycle.
- TMR Reliability: When used in a Triple Modular Redundant (TMR) set (R, S, and T), the system uses 2-out-of-3 voting to ensure that a single sensor or module failure does not cause a “nuisance trip” or fail to trip when required.
- Redundant IONet Ports: Dual Ethernet ports provide constant communication with the Mark VIe controllers, allowing for real-time monitoring of trip status and diagnostics even if one network cable is damaged.
- Comprehensive Self-Diagnostics: The module continuously monitors the health of its internal circuits and the integrity of the connected solenoid loops, alerting operators to faults before they become critical.
5. Application Scenarios
- Gas Turbine Primary Trip: The IS220PTURH1A is the standard interface for controlling the fuel stop valves on GE Frame 6, 7, and 9 gas turbines.
- Steam Turbine Emergency Protection: Deployed in steam power plants to monitor high-pressure steam valves and provide overspeed protection for the generator set.
- Mechanical Drive Turbines: Used in large-scale LNG or petrochemical compression trains where the turbine must be protected against sudden load losses.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary difference between the PTUR and other I/O packs?
- A: The IS220PTURH1A is specifically “turbine-rated” for safety; it includes specialized hardware for high-frequency speed sensing and high-current trip relay interfacing that general-purpose modules lack.
- Q: Does this module require a specific terminal board?
- A: Yes, it is typically mounted on a TTUR (Turbine Primary Trip) terminal board, which provides the physical connections for the MPUs and trip solenoids.
- Q: Is the IS220PTURH1A compatible with Mark VIeS (Safety) systems?
- A: Yes, it is a core component in both standard Mark VIe and Mark VIeS safety-certified configurations for turbine protection.
GE IS210BPPBH2BMD GE IS420ESWBH3A GE IS420PPNGH1A
- A: Yes, it is a core component in both standard Mark VIe and Mark VIeS safety-certified configurations for turbine protection.
