GE IS200VTURH1B

Designed for Turbine Safety and Monitoring

The GE IS200VTURH1B is a primary turbine protection card used within GE's Mark VI turbine control architecture. The board provides dedicated turbine protection and monitoring functions and is designed as a VME-based component for compatible Mark VI installations.

For operators maintaining legacy turbine-control equipment, the board can serve as an important replacement component when an existing VTUR protection card requires service or replacement.

Main Capabilities

The VTUR architecture focuses on several critical turbine parameters. One of its principal duties is turbine speed monitoring and overspeed protection. The board processes speed-related signals and participates in the generation of the primary overspeed trip.

Other documented functions include monitoring induced shaft current and voltage, with alarm capability for excessive values. In applicable gas-turbine configurations, the board can also interface with flame-detection equipment.

The board therefore contributes to both normal turbine monitoring and protective control rather than serving simply as a general-purpose I/O card.

Hardware and Compatibility

The IS200VTURH1B belongs to the Mark VI IS200 family and uses a VME mounting format. Available product specifications identify its hardware form revision as B, functional revision as A, and artwork revision as C. The PCB is conformally coated.

It is associated with the TTUR and TRPG terminal-board families. Certain references also identify compatibility with specific TTUR and TRPG variants, so the complete system configuration should be checked before ordering a replacement.

An important sourcing point is that the IS200VTURH1B is intended for Mark VI, and should not be treated as a direct Mark VIe replacement without technical confirmation.

Why It Matters in a Mark VI System

Turbine protection hardware must respond reliably to abnormal operating conditions. The VTUR board provides a dedicated processing and protection layer for important turbine signals, helping the overall control system identify potentially dangerous conditions and initiate the required protective response.

Its VME construction also allows it to integrate directly into the Mark VI control rack, where it operates alongside other specialized boards for communication, vibration monitoring, temperature measurement, turbine I/O, and control functions.

Application Areas

Typical environments for the IS200VTURH1B include:

Power Generation: Used in compatible gas and steam turbine control installations.

Industrial Turbomachinery: Supports turbine protection functions in demanding industrial facilities.

Oil and Gas: Suitable for legacy Mark VI turbine-control equipment used in process and energy applications.

Maintenance Projects: Useful as a replacement board when an installed VTUR card has reached the end of its service life.

The Mark VI system itself was developed for gas and steam turbine management, making the IS200VTURH1B particularly relevant to long-running Speedtronic installations.

Replacement and Service Advice

When sourcing this board, verify IS200VTURH1B exactly rather than relying only on the VTUR designation. Check the board label, revision information, rack location, and associated terminal-board model before installation.

During service work, maintain proper ESD protection and inspect connectors for contamination, oxidation, or mechanical damage. If a protection fault occurs, technicians should also verify speed pickups, field wiring, terminal boards, and other related turbine-protection components instead of assuming the VME board is the sole cause.

The GE IS200VTURH1B is therefore a specialized Mark VI turbine-protection component suited to organizations that need to maintain existing GE turbine-control infrastructure without unnecessarily replacing the entire control system.

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