GE IS200TPROH1C Emergency Protection Terminal Board (TPRO)

Technical Specifications

• Manufacturer: General Electric (GE)
• Product Series: Mark VI Speedtronic
• PPRO I/O Packs: 3 integrated PPRO protective processor I/O packs
• Potential Transformers (PTs): 1 pair for bus and generator voltage input
• Speed Signal Inputs: 3 channels with conditioning circuitry
• Terminal Blocks: 2 pluggable barrier – type terminal blocks, 24 terminals each (total 48 terminals)
• Connectors: 3 DC – 37 pin connectors for Mark VIe backup trip relay terminal board connections
• Operating Voltage: 125 VDC (control); 120/240 VAC (potential transformers)
• Operating Temperature: -40°C to +70°C
• Dimensions: 130 mm × 135 mm × 35 mm (13 cm × 13.5 cm × 3.5 cm)
• Weight: 3 kg
• Compliance: UL/cUL Class I, Div 2 certified for hazardous locations
• Power Consumption: 25 W (typical, including PPRO packs)
• Filtering: 2 ms hardware filter on voltage/speed inputs for noise reduction

Functional Features

• Integrated Protection Processing: Houses 3 PPRO I/O packs for independent and redundant protective logic execution, supporting TMR voting for fault – tolerant operation.
• Voltage & Speed Monitoring: The on – board PT pair accurately steps down bus and generator voltage for monitoring, and the speed signal conditioning circuitry ensures precise overspeed detection and protection.
• Redundant Connectivity: 3 DC – 37 pin connectors enable redundant connections to Mark VIe backup trip relay terminal boards, ensuring fail – safe turbine shutdown during emergencies.
• Flexible Redundancy: Compatible with both simplex (non – redundant) and TMR (high – reliability) systems, meeting diverse application redundancy requirements.
• Plug – and – Play Installation: Plug – in terminal blocks and pre – configured connectors allow for quick field replacement and integration with VME – based Mark VI systems.
• Surge & Noise Protection: Metal Oxide Varistors (MOVs) protect against voltage surges; hardware filtering reduces electromagnetic interference (EMI) for stable signal processing.
• Diagnostic Capabilities: Monitors PPRO pack health, voltage input integrity, and speed signal validity, triggering alarms or trips for discrepancies and facilitating predictive maintenance.

Application Scenarios

• Turbine Emergency Protection: Primary use in Mark VI Speedtronic gas/steam turbine control systems for overspeed protection, emergency shutdown (ESD), and fault – tolerant operation.
• Power Generation: Deployed in thermal power plants, combined – cycle facilities, and industrial turbine installations to ensure safe turbine operation and prevent catastrophic failures.
• Simplex & TMR Systems: Ideal for both non – redundant (simplex) industrial control and high – availability (TMR) applications like nuclear power auxiliary systems or critical oil/gas turbine control.
• Backup Trip Integration: Works with Mark VIe backup trip relay terminal boards to provide redundant, failsafe shutdown paths during control system failures.
• Hazardous Environments: UL/cUL Class I, Div 2 certification allows operation in petrochemical refineries, offshore platforms, and other explosive – risk industrial settings.

Compatibility

• GE Platforms: Mark VI, Mark VIe turbine control systems
• I/O Packs: PPRO protective processor I/O packs (3 integrated)
• Redundancy Configurations: Simplex and TMR systems with Mark VIe backup trip relay terminal boards
• Connectors: DC – 37 pin cables for Mark VIe backup trip terminal board connections

Installation Notes

1. Terminal Wiring: Connect field voltage, speed, and control signals to 2 pluggable terminal blocks (24 terminals each), accepting wires up to #12 AWG.
2. PT Connection: Wire bus and generator voltage inputs to the integrated PT pair; ensure proper isolation from control circuits.
3. Redundant Cabling: Use 3 DC – 37 pin cables to connect to Mark VIe backup trip relay terminal boards for redundant shutdown paths.
4. Surge Protection: Avoid cross – connecting 240 VAC and 125 VDC circuits to prevent MOV damage; adhere to 120 VAC/125 VDC voltage ratings.
5. Grounding: Connect terminal block shields to chassis ground for EMI reduction and safety compliance.

Key Advantages

• High Reliability: 3 integrated PPRO packs and TMR support ensure fault – tolerant protection, minimizing turbine downtime and safety risks.
• Integrated Design: Combines PTs, speed conditioning, and protective processing in one board, reducing system complexity and wiring costs.
• Durability: Rugged construction with a wide operating temperature range (-40°C to +70°C) and hazardous location certification for long – term operation in harsh conditions.
• Simplified Maintenance: Plug – in terminal blocks and modular PPRO packs enable quick replacement without full system shutdown.
• Compliance: UL/cUL Class I, Div 2 certification ensures safe operation in explosive – risk environments, meeting global industrial safety standards.