IS200TVBAH2B GE Speedtronic | Voltage & Current Termination

Product Overview

The GE IS200TVBAH2B (TVBA) functions as a high-density Terminal Board Module within the Mark VI Speedtronic control architecture. It provides the essential physical interface between field-level instrumentation and the centralized control system. This board excels at terminating both AC and DC voltage and current signals, facilitating seamless data flow for turbine monitoring and protective functions. By centralizing field wiring, the TVBA module streamlines system architecture and ensures high-integrity signal transmission for gas and steam turbine operations.

Condition: 100% Brand New, Factory Original.

Technical Specifications

The IS200TVBAH2B utilizes high-grade materials to ensure signal accuracy in demanding industrial environments.

Engineering Advantages

• Superior Signal Integrity: The IS200TVBAH2B features high-quality termination points that minimize contact resistance. This ensures that precision analog signals from sensors reach the I/O processors without degradation, preventing measurement drift in sensitive turbine monitoring loops.

• Robust Galvanic Isolation: Integrated isolation barriers protect the core control electronics from high-voltage transients and ground loops common in industrial power plants. This isolation prevents localized electrical faults from propagating through the system and causing widespread hardware damage.

• Effective Surge Suppression: The board incorporates dedicated surge suppression circuitry. This hardware layer absorbs electrical spikes caused by lightning or switching transients, safeguarding the connected I/O packs and maintaining continuous system uptime.

• Simplified Maintenance Access: The modular design of the TVBA allows for organized field wiring. Technicians easily identify and troubleshoot specific signal loops via the clearly labeled termination points, significantly reducing maintenance hours during plant outages.

• Flexible Signal Handling: By supporting both AC and DC current/voltage inputs, the IS200TVBAH2B provides a versatile solution for diverse monitoring needs. It handles everything from generator voltage sensing to auxiliary system current monitoring on a single board type.

FAQs

Q: Does the IS200TVBAH2B require an external power source?

A: The board draws its nominal 28 V DC operating power directly from the Mark VI control cabinet backplane or power distribution module. It does not require a dedicated external power supply for its internal termination logic.

Q: Can I use the IS200TVBAH2B in a Mark VIe system?

A: This module specifically targets the Mark VI platform. While some Mark VI terminal boards have equivalents in the Mark VIe series, the IS200TVBAH2B utilizes connectors and mounting footprints optimized for Mark VI rack architectures. Always verify backplane compatibility before attempting cross-platform installation.

Q: What is the benefit of the H2B suffix in this part number?

A: The "H2B" designation refers to a specific hardware revision level. This version typically includes updated component populations or improved artwork revisions compared to the "H1" series, ensuring better performance and reliability in modern control configurations.

Q: Are the termination points suitable for high-vibration environments?

A: Yes. GE designs Mark VI terminal boards to withstand the vibration levels typical of turbine enclosures. The screw-type or tension-clamp terminals ensure that field wires remain securely connected even under constant mechanical stress.