IS200TRPGH2B GE

Product Parameters

Advantages & Key Features

• Extended Redundant Capacity: 12 redundant transducer power pairs (24 total outputs) in a single VME slot—50% more capacity than IS200TRPGH1BDD (8 pairs). Ideal for larger turbine systems with extensive critical transducer power requirements.

• Higher Total Current: 100 mA per channel with 2.4 A total capacity—50% more total current than IS200TRPGH1BDD (1.6 A).

• Highest Accuracy Regulation: ±0.05% voltage regulation ensures ultra-stable transducer operation.

• Ultra-Low Ripple/Noise: < 5 mV peak-to-peak ripple ensures clean power for sensitive transducers.

• Fast Failover: < 5 ms hardware failover ensures minimal power interruption.

• Extended Temperature Range: –40°C to +70°C operation makes IS200TRPGH2B suitable for extreme environments.

• Enhanced Isolation: 2000 VAC isolation provides superior protection for the Mark VIe backplane.

• Comprehensive Diagnostics: Overcurrent, short-circuit, under/over-voltage, open-circuit, power status monitoring, and reference validation.

• High-Density Status Indication: 12 primary and 12 redundant status LEDs enable rapid on-site troubleshooting.

• ToolboxST Integration: Full configuration, monitoring, and diagnostics via GE ToolboxST.

• Drop-In Replacement: Direct replacement for IS200TRPGH1BDD, IS200TRPGH1B, and earlier redundant transducer power terminal boards.

Application Fields

• Gas & Steam Turbines (GE Frame 6B/7EA/9E/HA): Redundant power for critical pressure transmitters (fuel gas, steam pressure), temperature transmitters, and position transducers.

• Combined Cycle Plants: Redundant power for HRSG critical pressure and temperature transmitters.

• Compressor Stations: Redundant power for critical suction/discharge pressure transmitters.

• Nuclear Power Plants: Critical transducer power where redundancy, calibration traceability, and high reliability are mandated.

• Safety-Critical Applications: Powering transducers in safety instrumented systems (SIS).

• Arctic & Desert Installations: Extreme-environment critical transducer power applications.

Comparison with Competing Products

Key Advantage: IS200TRPGH2B delivers 12 redundant transducer power pairs (24 outputs)—the highest channel density in the Mark VIe redundant transducer power terminal family, with 50% more capacity than IS200TRPGH1BDD—combined with 100 mA per channel, < 5 ms failover, ±0.05% regulation, 2000 VAC isolation, extended –40°C to +70°C temperature range, and comprehensive diagnostics including reference validation—making it the premier solution for large turbine systems requiring maximum-density, high-current, uninterrupted transducer power in extreme environments.

Selection Guidelines & Recommendations

• Redundancy Configuration: Determine critical transducers requiring redundant power—up to 12 redundant pairs per board.

• Output Voltage: Configure per-channel output voltage (default 24 VDC) in GE ToolboxST.

• Current Requirements: Verify each transducer’s current draw does not exceed 100 mA per channel.

• Total Power: Ensure total current across all channels does not exceed 2.4 A.

• Diagnostic Configuration: Enable overcurrent, short-circuit, power status monitoring, and reference validation for critical transducers.

• Failover Testing: Test failover operation by simulating primary power loss—verify automatic switchover within < 5 ms.

• Controller Firmware: Requires Mark VIe processor firmware v9.5 or later.

• Wiring Guidelines: Use shielded twisted-pair cables. Maintain shield grounding only at the Mark VIe cabinet end.

• Spare Strategy: Keep one spare per turbine; lead times 8–14 weeks.

• Retrofit: Direct replacement for IS200TRPGH1BDD, IS200TRPGH1B, and IS200TRPGH1A—regenerate configuration in GE ToolboxST for 12-pair mapping.

Important Cautions

1. No Hot-Swap: De-energize rack before insertion/removal.

2. Power Polarity: Observe correct polarity for transducer connections—reverse polarity may damage field devices.

3. Current Limit: Do not exceed 100 mA per channel—overcurrent protection will trip and latch.

4. Total Power: Do not exceed 2.4 A total across all channels.

5. Short-Circuit: If a short is detected, the channel will latch off. Clear the fault and reset via GE ToolboxST.

6. Failover Testing: Test failover operation by simulating primary power loss—verify automatic switchover within < 5 ms.

7. Grounding: Connect AGND to Mark VIe system ground at single star point.

8. Shield Termination: Ground transducer cable shields only at cabinet end.

9. ESD Handling: Use grounded wrist straps; field repair not possible.

10. Temperature Rating: Verify cabinet ambient does not exceed +70°C or fall below –40°C.

11. Reference Validation: Yellow LED indicates reference drift—schedule factory recalibration if illuminated.

12. Channel Mapping: With 12 redundant pairs (24 channels), verify field wiring maps to correct ToolboxST channel numbers.

13. Redundancy Verification: Confirm both primary and secondary power sources are operational after installation.

14. Wiring Density: With 24 transducer power connections, ensure adequate cabinet space and cable management to maintain proper airflow.