Description

IS200TTURH1CFD Turbine Trip & Speed Termination Board

Technical Specifications

• Product Model: IS200TTURH1CFD
• Brand: GE Vernova (Mark VIe series)
• Warranty: One Year
• Input Voltage: 24 VDC logic supply; field‑side rated up to 125 VDC for breaker coil and contact inputs
• Operating Temperature: ‑30 °C to +65 °C cabinet‑mount
• Storage Temperature: ‑40 °C to +85 °C
• Response Time: Fast pulse capture for magnetic‑pickup speed sensors; hardware trip relay response <15 ms
• Protection Class: IP00 plug‑in PCB for cabinet‑only installation; conformal‑coated variant available
• Accuracy Class: Precision pulse signal routing for turbine speed measurement; relay‑based hard‑wired trip logic
• Output Frequency: Accepts pulse inputs from magnetic pick‑up sensors
• Rated Current Range: On‑board relays K25/K25P/K25A rated 5 A @125 VDC for main generator breaker (52G) coil drive
• Communication Interface: D‑sub multi‑pin connectors for mating with PTUR / VTUR I/O packs; barrier screw terminal blocks for field wiring
• Supported Protocols: Hardware‑level signal interface for Mark VIe IONet distributed turbine‑control system; supports simplex, dual and TMR 2‑out‑of‑3 voting via jumper configuration
• Overload Capacity: Isolation between field circuits and I/O‑pack side; transient‑voltage suppression; hardware‑voted trip relays prevent single‑component‑caused false tripping
• Dimensions: 330 mm × 178 mm × 42 mm; weight approx 1.2 kg
• 

Product Overview

The IS200TTURH1CFD is a dedicated turbine termination board for GE Mark VIe turbine‑generator control systems. It provides physical termination for magnetic‑pickup speed sensors, overspeed‑trip dry contacts, emergency‑stop signals and generator‑breaker hardware‑trip circuits. It features three inter‑coordinated on‑board relays to execute hardware‑voted trip commands to open the generator main breaker. Jumper settings enable simplex or TMR 2‑out‑of‑3 voting architecture selection to match system redundancy design.

This board addresses critical turbogenerator‑control challenges: hard‑wired safety trip path independent of software logic, multi‑point speed‑sensor signal termination, and drop‑in spare‑part compatibility for legacy Mark VIe racks. It separates noisy field‑side power‑plant signals from low‑voltage I/O‑pack electronics and delivers hardware‑level protection even if the main controller suffers faults. Power‑generation control engineers, gas‑/steam‑turbine site‑technicians and retrofitting integrators benefit most. It pairs with PTUR and VTUR I/O packs, and applies for gas‑turbine, steam‑turbine and hydro‑generator control in utility and petrochemical power‑plants.