- Model: IS220PTURH1B
- Manufacturer: GE
- Core Function: Serves as the primary turbine protection I/O pack, processing speed sensor signals for overspeed detection, synchronization control to the generator breaker, and emergency trip inputs to ensure safe turbine operation.
- System Compatibility: Compatible with GE Mark VIe and Mark VIeS distributed control systems, including Speedtronic turbine platforms.
- Supply Status: Available as new surplus, refurbished, or repair/exchange; supported as current or extended lifecycle part.
- Warranty Standard: 12-month functional warranty, fully tested.
Key Technical Specifications
- Product Model: IS220PTURH1B
- Manufacturer: GE
- System Platform: Mark VIe
- Power Supply Voltage: 28 V DC nominal (via terminal board), operational range typically 24-32 V DC for reliable processor and analog operation.
- Power Consumption: Approximately 8-12 W, designed for efficient integration in turbine control cabinets.
- Communication Interfaces: Dual 100 Mbps full-duplex Ethernet ports for redundant IONet connectivity to Mark VIe controllers.
- Speed Sensor Inputs: 4 channels (MPU or passive/active sensors), pulse rate range 2 Hz to 20 kHz for accurate rotor speed measurement.
- Input Voltage Range (Speed Sensors): -15 V to +15 V DC differential, supporting various magnetic pickup types.
- Emergency Trip Inputs: Configurable for E-stop signals, voltage range 18-140 V DC, critical for rapid turbine shutdown.
- Synchronization Control: Supports automatic synchronizing to main breaker, handling phase, voltage, and slip matching for up to 2 breakers.
- Operating Temperature Range: -30°C to +65°C, suitable for turbine hall environments with vibration and heat exposure.
- Humidity Tolerance: 5% to 95% non-condensing, ensuring stable performance in humid conditions.
- Dimensions: Standard Mark VIe I/O pack size approximately 8.26 cm wide x 4.19 cm high, mounted directly on compatible terminal boards.
- Weight: Approximately 0.5-0.8 kg, enabling straightforward field replacement.
- Mean Time Between Failures (MTBF): >150,000 hours (typical for Mark VIe turbine I/O), supporting high-availability safety functions.
- Certification Standards: CE compliant, UL 508 listed for industrial control equipment, RoHS directive adherence.
Technical Architecture & Functional Positioning
The IS220PTURH1B occupies a critical safety position in the Mark VIe architecture as a turbine-specific primary protection pack at the field interface layer. It connects to dedicated terminal boards (such as TTURH1C or STUR) to acquire high-speed rotor signals, emergency trip commands, and synchronization feedback, processing these locally before transmitting to the controller via IONet. This distributed design reduces latency in overspeed detection and trip execution, essential for protecting rotating machinery from destructive overspeed conditions.
The pack integrates a common Mark VIe processor board, a turbine-specific control board, and an analog acquisition daughterboard. It features high-resolution counters for precise speed calculation, redundant Ethernet for fault-tolerant communication, and onboard diagnostics for sensor health, wiring integrity, and synchronization status. These capabilities address key engineering challenges: accurate detection of overspeed events (typically set at 110-115% nominal speed), reliable breaker synchronization to prevent out-of-phase closure, and fast response to emergency stops without false trips from noise or sensor faults.
In simplex or redundant (TMR) configurations, the module supports coordinated protection logic, including voted overspeed trips and permissive checks, enhancing overall turbine safety and grid compliance.
SUTORBILT POSITIVE DISPLACEMENT ROTARY BLOWER
Allen Bradley AB Circuit Board 170095 NEW NEW
SIEMENS SIMATIC C7-621 C7621 C7-621-ASI C7-621 ASI
Eurotherm Drives Link2 SSD L5300 Link Rack 4.1 85-265V
SQUARE D 150A 150 AMP BUSWAY SWITCH PLUG IN PKA36150GN
Modicon ICC Cyberline Drive Controller 110-093 REV R3
BALDOR ADJUSTABLE SPEED AC DRIVE 15HP 15 HP ID15H415-E
SQUARE D CIRCUIT BREAKER 250A 250 AMP 3P LH36250 NEW
FANUC A06B-0501-B002 AC SERVO MOTOR MDL 10 3 PH 8 POLE
REMANUFACTURED RELIANCE FIELD SUPPLY 0-51893-4 51893-4
Westinghouse Starter Size SZ 5 GCA 530 GCA-530 GCA530
Graco Senator Pump 237-279 Ser B96A 100/7 PSI 217-540
GRACO SENATOR 230-983 13-1 RATIO 217-527 3.75/14 GPM
DRESSER 1511K SIZE 2 3″ NPT VALVE SET 150 PSI NEW
