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GE IS220PTURH1A Product Description
The IS220PTURH1A is a Primary Turbine Trip (PTUR) safety‑grade I/O pack for GE Mark VIe Speedtronic turbine control systems. As a core safety processing module, it interfaces with terminal boards such as IS200TRPAH1A to acquire magnetic pickup speed signals, emergency‑stop inputs and critical protection status signals from field sensors. Equipped with an onboard dedicated safety processor, it performs overspeed detection, trip‑logic calculation and 2‑out‑of‑3 voting functions, communicating with main controllers via redundant IONet Ethernet bus. Compliant with SIL 2 safety requirements, this hot‑swap capable module undertakes fast turbine protection judgment for gas and steam turbines in power‑plant environments.
Product Features
- Dedicated turbine safety I/O pack, supports 4‑channel magnetic pickup speed inputs, detectable speed down to 2 RPM for zero‑speed monitoring
- On‑board safety processor executes overspeed protection, emergency trip logic and 2oo3 safety voting algorithm
- Dual redundant 100 Mbps IONet Ethernet ports, eliminates single‑point‑failure risk for safety‑related data transmission
- Front‑panel LED status indicators and IR service port for local status viewing and maintenance diagnostics
- Hot‑swap support; firmware and configuration parameters can be auto‑downloaded from main controller over IONet bus
- SIL 2 safety integrity level certified, meets API 670 turbine protection standard for power‑generation safety applications
- Operates with 28 VDC power supply, wide operating temperature range, suitable for cabinet‑mount power‑plant environments
- Works cooperatively with trip terminal boards and trip solenoid drive hardware to complete full‑chain turbine emergency‑shutdown protection
Application Scenarios
- GE Mark VIe gas‑turbine control rack overspeed and primary trip protection subsystems
- Steam‑turbine and combined‑cycle power‑generation unit safety protection control systems
- Utility power‑plant TMR triple‑modular‑redundant turbine protection racks
- Captive industrial power‑plant turbine‑generator safety‑system spare‑part replacement and retrofits
- Oil‑gas and petrochemical facility turbine‑driven equipment safety control cabinets
- Co‑generation plant high‑reliability overspeed monitoring and emergency‑shutdown protection loops
- Upgrade and renovation projects for legacy Mark VIe turbine‑protection hardware platforms
Frequently Asked Questions
A1: It is commonly matched with IS200TRPAH1A terminal board for collecting field speed and emergency‑stop signals to implement turbine protection functions.
A2: Hardware supports hot‑swap mechanical operation; however, removing this safety module while turbine runs will disable primary trip protection. Execute according to GE official maintenance procedures and take safety‑isolation measures before replacement.
A3: Inspect magnetic pickup sensor health, field wiring integrity, terminal‑board connection status, module power supply, and IONet communication link status.
A4: When auto‑reconfiguration function is enabled, the module automatically downloads configuration parameters and firmware from Mark VIe main controller via IONet bus after power‑on.
A5: Wear anti‑static wrist strap during operation. Static discharge may damage the onboard safety processor and sensitive circuit components of this safety‑grade I/O pack.
